Abstract

The present invention relates to a catalyst for light olefins production from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst has core-shell structure comprising zeolite core selected from ferrierite, ZSM-5, or mixture thereof, and silicalite shell having MFI structure, and said catalyst has the following characteristics: a) the weight ratio of shell to core greater than 0 but less than 4; b) the mole ratio of silica to alumina (SiO2/Al2O3) from 60 to 550; c) the hierarchical pores comprising micropores having pore size in the range of 0.1 to 2 nm, mesopores having pore size in the range of 2 to 50 nm, and macropores having pore size greater than 50 nm, wherein the proportion of volume of mesopores and macropores to the total pore volume is in the range from 0.35 to 0.90, and said mesopores comprise pores having pore size from 2 to 5 nm, wherein the proportion of volume of pores having pore size from 2 to 5 nm to the total pore volume is in the range from 0.08 to 0.30. The present invention relates to a catalyst for light olefins production from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst has core-shell structure comprising zeolite core selected from ferrierite, ZSM-5, or mixture thereof, and silicalite shell having MFI structure, and said catalyst has the following characteristics: a) the weight ratio of shell to core greater than 0 but less than 4; b) the mole ratio of silica to alumina (SiO2/Al2O3) from 60 to 550; c) the hierarchical pores comprising micropores having pore size in the range of 0.1 to 2 nm, mesopores having pore size in the range of 2 to 50 nm, and macropores having pore size greater than 50 nm, wherein the proportion of volume of mesopores and macropores to the total pore volume is in the range from 0.35 to 0.90, and said mesopores comprise pores having pore size from 2 to 5 nm, wherein the proportion of volume of pores having pore size from 2 to 5 nm to the total pore volume is in the range from 0.08 to 0.30. The catalyst according to the invention provides high conversion of the reactant and especially high selectivity to light olefins. Moreover, this invention also relates to the process of light olefins production by using the catalyst thereof.

IPC Classes  ?

• B01J 29/69 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 29/48 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
• B01J 35/63 - Pore volume
• B01J 35/64 - Pore diameter
• C07C 4/06 - Catalytic processes

Abstract

The present invention relates to a catalyst for cumene hydroperoxide decomposition, wherein said catalyst has good efficacy, provides good decomposition of cumene hydroperoxide and good selectivity to main products, provides high yield percentage of alpha methyl styrene, and reduces the formation of unwanted byproducts. Said catalyst comprises zeolite beta, wherein said catalyst has the following characteristics: a) the mole ratio of silica to alumina is from 30 to 100; and b) the peak area ratio obtained from the analysis using 27Al magic angle spinning-nuclear magnetic resonance (27Al MAS-NMR) technique according to the following relation: (A+C+D)/B is from 0.1 to 0.3; wherein A, B, C, and D are the peak area at the peak position from 44 but less than 54 ppm, the peak area at the peak position from 54 to 58 ppm, the peak area at the peak position greater than 58 to 64 ppm, and the peak area at the peak position from −10 to 5 ppm, respectively, by the peak deconvolution analysis with Lorentz/Gauss function under the condition that the minimum distance between peaks for independent integration (AZFW) is equal to 0.5 ppm. Moreover, this invention relates to a preparation process of the catalyst comprising the step of contacting zeolite beta with polycarboxylic acid solution and calcination at the temperature in the range from 400 to 700° C., wherein said polycarboxylic acid has the pKa of the first dissociation from 1.5 to 3.5 and has the molecular structure with at least one side having size larger than 6 Å. This invention also relates to a process for cumene hydroperoxide decomposition using said catalyst or catalyst prepared from said preparation process of the catalyst.

IPC Classes  ?

• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• B01J 37/06 - Washing
• B01J 37/08 - Heat treatment
• B01J 37/12 - Oxidising
• C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
• C07C 37/08 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide

Abstract

The present invention relates to a catalyst for aromatization of alkanes having 4 to 7 carbon atoms, especially alkanes having carbon atoms. Said catalyst has the efficacy in the aromatics production with high conversion and high selectivity of aromatics or high yield of aromatics, wherein said catalyst comprises zeolite, at least 1 transition metal from group VIII transition metal in a range of 0.1 to 2% by weight based on the total weight of the catalyst, and at least 1 metal from group IIIA metal in a range of 0.1 to 5% by weight based on the total weight of the catalyst. Said catalyst is treated and dried with a microwave at a power in a range from 400 to 1,000 watts after step of contacting with a solution comprising at least 1 transition metal salt from group VIII transition metal and after step of contacting with a solution comprising at least 1 group IIIA metal salt. Moreover, this invention also relates to a process for preparing said catalyst and a process of aromatics preparation using said catalyst.

IPC Classes  ?

• B01J 37/02 - Impregnation, coating or precipitation
• B01J 23/08 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of gallium, indium or thallium
• B01J 23/62 - Platinum group metals with gallium, indium, thallium, germanium, tin or lead
• B01J 29/44 - Noble metals
• B01J 37/08 - Heat treatment
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• C07C 5/41 - Catalytic processes

Abstract

The present invention relates to a preparation method of double metal cyanide catalyst for producing a polycarbonate-ether from epoxide and carbon dioxide, wherein said process comprises the following steps: (a) mixing of a metal salt selected from zinc (II) metal salt, iron (II) metal salt, cobalt (II) metal salt, nickel (II) metal salt, metal cyanide salt, and the first complexing agent selected from alcohol compounds, ketone and diketone compounds, ketone-ester compounds, ether compounds, or a mixture thereof at predetermined time and temperature to obtain double metal cyanide catalyst precursor; and (b) subjecting the double metal cyanide catalyst precursor obtained from step (a) to react with the second complexing agent selected from aliphatic carbonyl compound, aliphatic ester ether compound, or a mixture thereof in water or organic solvent at a predetermined time and temperature to obtain the double metal cyanide catalyst.

IPC Classes  ?

• C08G 65/28 - Cyclic ethers and hydroxy compounds
• C08G 64/30 - General preparatory processes using carbonates

Abstract

The present invention relates to a process for preparing an aqueous-based biodegradable polymer dispersions composition, comprising the following steps: (a) mixing biopolymer, plasticizer, stabilizer, and aqueous solution in a stir tank reactor at the temperature from 90 to 150 °C and pressure from 3 to 5 bars until the biodegradable polymer composition becomes homogeneous; (b) subjecting mixture in step (a) to reflux pressurization system to disperse said mixture into small particles and reflux back to the stir tank reactor; and (c) reducing the temperature of the stir tank reactor down to the temperature from 25 to 40 °C to obtain the stable aqueous-based biodegradable polymer dispersions composition.

IPC Classes  ?

• C08J 3/07 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
• C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C09D 167/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

The present invention relates to a method for optimizing an alkane dehydrogenation operation. The method comprises the steps of obtaining historical data of a plurality of production parameter data, filtering abnormal data of the said historical data, developing a product yield prediction model and a coking rate prediction model, and processing the product yield prediction model and the coking rate prediction model, and determining optimum production parameter data based on the predicted product yield and the predicted coking rate. The present invention further relates to a system for optimizing an alkane dehydrogenation operation which comprises a production data detecting and storage unit and a processor configured to obtain historical data of the production parameter data, filter abnormal data of the historical data of the production parameter data, develop a product yield prediction model and a coking rate prediction model, and provide a process efficiency analysis model with a machine learning processing unit for processing the product yield prediction model and the coking rate prediction model to predict a product yield and a coking rate, and determine optimum production parameter data based on the predicted product yield and the predicted coking rate.

IPC Classes  ?

• G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
• G06N 5/022 - Knowledge engineeringKnowledge acquisition

Abstract

The present invention relates to a process to control the molecular weight distribution of polyethylene and to reduce the smoke quantity during the formation of polyethylene, wherein the process for preparing polyethylene having narrow molecular weight distribution, comprising the following steps: a) continuously polymerizing ethylene by subjecting ethylene stream, hydrogen, solvent, Ziegler-Natta catalyst comprising titanium, co-catalyst, external electron donor selected from alkoxysilane compound into the reactor to produce polymer slurry; b) removing residue reaction gas from the polymer slurry stream obtained from a) and c) separating polymer stream in b) from the solvent.

IPC Classes  ?

• C08F 110/02 - Ethene
• C08F 4/646 - Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
• C08F 4/642 - Component covered by group with an organo-aluminium compound
• C08L 23/08 - Copolymers of ethene

Abstract

The present invention relates to a catalyst for light olefins production from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst has core-shell structure comprising zeolite core selected from ferrierite, ZSM-5, or mixture thereof, and silicalite shell having MFI structure, and said catalyst has the following characteristics: a) the weight ratio of shell to core greater than 0 but less than 4; b) the mole ratio of silica to alumina (SiO2/Al2O3) from 60 to 550; c) the hierarchical pores comprising micropores having pore size in the range of 0.1 to 2 nm, mesopores having pore size in the range of 2 to 50 nm, and macropores having pore size greater than 50 nm, wherein the proportion of volume of mesopores and macropores to the total pore volume is in the range from 0.35 to 0.90, and said mesopores comprise pores having pore size from 2 to 5 nm, wherein the proportion of volume of pores having pore size from 2 to 5 nm to the total pore volume is in the range from 0.08 to 0.30. The catalyst according to the invention provides high conversion of the reactant and especially high selectivity to light olefins. Moreover, this invention also relates to the process of light olefins production by using the catalyst thereof.

IPC Classes  ?

• B01J 29/00 - Catalysts comprising molecular sieves
• B01J 29/035 - Crystalline silica polymorphs, e.g. silicalites
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves

Goods & Services

Plastic unprocessed; chemical products used in the plastic industry, namely, unprocessed polyethylene resins Semi-processed plastics in the form of pellets, films, sheets, tubes, bars or rods; synthetic resins in semi-processed form in the form of pellets

Abstract

The present invention relates to a catalyst for cumene hydroperoxide decomposition, wherein said catalyst has good efficacy, provides good decomposition of cumene hydroperoxide and good selectivity to main products, provides high yield percentage of alpha methyl styrene, and reduces the formation of unwanted byproducts. Said catalyst comprises zeolite beta, wherein said catalyst has the following characteristics: a) the mole ratio of silica to alumina is from 30 to 100; and b) the peak area ratio obtained from the analysis using 27Al magic angle spinning-nuclear magnetic resonance (27Al MAS-NMR) technique according to the following relation: (A+C+D)/B is from 0.1 to 0.3; wherein A, B, C, and D are the peak area at the peak position from 44 but less than 54 ppm, the peak area at the peak position from 54 to 58 ppm, the peak area at the peak position greater than 58 to 64 ppm, and the peak area at the peak position from -10 to 5 ppm, respectively, by the peak deconvolution analysis with Lorentz/Gauss function under the condition that the minimum distance between peaks for independent integration (AZFW) is equal to 0.5 ppm. Moreover, this invention relates to a preparation process of the catalyst comprising the step of contacting zeolite beta with polycarboxylic acid solution and calcination at the temperature in the range from 400 to 700 °C, wherein said polycarboxylic acid has the pKa of the first dissociation from 1.5 to 3.5 and has the molecular structure with at least one side having size larger than 6 Å. This invention also relates to a process for cumene hydroperoxide decomposition using said catalyst or catalyst prepared from said preparation process of the catalyst.

IPC Classes  ?

• C07C 37/08 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide
• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• G01N 24/12 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using double resonance
• C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof

Abstract

and wherein said adsorbent is subjected to the treatment with alcohol.

IPC Classes  ?

• B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
• B01D 53/02 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C07C 7/12 - Purification, separation or stabilisation of hydrocarbonsUse of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers

Abstract

The present invention relates to a catalyst for producing light olefins from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst comprises zeolite having the ring arrangement of 8 to 10 silicon atoms and hierarchical zeolite comprising 0.1 to 2 nm of micropore, 2 to 50 nm of mesopore, and greater than 50 nm of macropore, wherein the mesopore and macropore are greater than or equal to 40% when comparing to total pore volume, and said catalyst comprises element having 2+ to 4+ oxidation state with 0.1 to 3% by weight of the catalyst.

IPC Classes  ?

• B01J 29/89 - Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium
• B01J 29/86 - BorosilicatesAluminoborosilicates
• B01J 29/04 - Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C07C 4/06 - Catalytic processes

Abstract

Kluyveromyces sp. yeast cell comprising at least a genetic modification that inactivates or deletes a nucleotide sequence encoding for transcription factor SEQ ID No. 2, particularly Haa1. The genetically engineered yeast cell according to this invention has an improvement of lactic acid tolerance, lactic acid production or a combination thereof as compared to the parental.

IPC Classes  ?

• C12N 1/16 - YeastsCulture media therefor
• A61K 36/064 - Saccharomycetales, e.g. baker's yeast

Abstract

The present invention relates to catalyst composition for cyclic carbonate production from CO2 and olefins using halohydrin agent as the co-reactant under mild conditions, which can effectively catalyze the cyclic carbonate synthesis and provides good selectivity to cyclic carbonate, wherein said catalyst composition comprising: a) the metal complex as shown in structure (I): The present invention relates to catalyst composition for cyclic carbonate production from CO2 and olefins using halohydrin agent as the co-reactant under mild conditions, which can effectively catalyze the cyclic carbonate synthesis and provides good selectivity to cyclic carbonate, wherein said catalyst composition comprising: a) the metal complex as shown in structure (I): wherein, M represents transition metal atom; R1, R2, and R3 represent independent group selected from hydrogen atom, halogen atom, alkyl group, alkenyl group, alkynyl group, alkoxy group, amine group, phenyl group, benzyl group, cyclic hydrocarbon group comprising hetero atom, perfluoroalkyl group, or nitro group; R4 represents group selected from alkylene group, cycloalkylene group, or phenylene group; X represents group selected from halogen atom, acetate group, or triflate group; b) the halohydrin agent in at least one solvent; and c) at least one base.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• C07D 317/38 - Ethylene carbonate

Goods & Services

Plastics, unprocessed; Unprocessed plastics in all forms; Unprocessed polyethylene resins. Semi-processed plastics; Semi-processed synthetic resins; Semi-processed plastics in the form of sheets, films, pellets, bars, rods and tubes; Artificial resins in the form of pellets for use in manufacture.

Abstract

The present invention relates to catalyst composition for cyclic carbonate production from CO2 and epoxides under mild conditions, which can effectively catalyze the cyclic carbonate synthesis and provides good selectivity to cyclic carbonate, wherein said catalyst composition comprising: a) the metal complex as shown in structure (I): The present invention relates to catalyst composition for cyclic carbonate production from CO2 and epoxides under mild conditions, which can effectively catalyze the cyclic carbonate synthesis and provides good selectivity to cyclic carbonate, wherein said catalyst composition comprising: a) the metal complex as shown in structure (I): wherein, M represents transition metal atom; R1, R2, and R3 represent independent group selected from hydrogen atom, halogen atom, alkyl group, alkenyl group, alkynyl group, alkoxy group, amine group, phenyl group, benzyl group, cyclic hydrocarbon group comprising hetero atom, perfluoroalkyl group, or nitro group; R4 represents group selected from alkylene group, cycloalkylene group, or phenylene group; X represents group selected from hydrogen atom, acetate group, or triflate group; and b) the organic compound as the co-catalyst selected from compound containing nitrogen, compound of quaternary ammonium salts, or compound of iminium salts.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• C07D 317/38 - Ethylene carbonate
• C07D 317/44 - Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems

Abstract

The present invention relates to an isomerization process of product obtained from bisphenol preparation from a condensation reaction of ketone and phenol comprising contacting the product obtained from bisphenol preparation from a condensation reaction of ketone and phenol with the ion exchange resin in aqueous condition for the isomerization of the undesired product and separating the product having higher bisphenol content, wherein said ion exchange resin is aromatic polymer having the sulfonic acid group modified with at least one promoter selected from the compound shown in the structure (I): The present invention relates to an isomerization process of product obtained from bisphenol preparation from a condensation reaction of ketone and phenol comprising contacting the product obtained from bisphenol preparation from a condensation reaction of ketone and phenol with the ion exchange resin in aqueous condition for the isomerization of the undesired product and separating the product having higher bisphenol content, wherein said ion exchange resin is aromatic polymer having the sulfonic acid group modified with at least one promoter selected from the compound shown in the structure (I):

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C07C 37/82 - SeparationPurificationStabilisationUse of additives by physical treatment by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by physical treatment by chemisorption
• B01J 31/10 - Ion-exchange resins sulfonated

Abstract

The present invention relates to a catalyst for aromatization of alkanes having 4 to 7 carbon atoms, especially alkanes having carbon atoms. Said catalyst has the efficacy in the aromatics production with high conversion and high selectivity of aromatics or high yield of aromatics, wherein said catalyst comprises zeolite, at least 1 transition metal from group VIII transition metal in a range of 0.1 to 2 % by weight based on the total weight of the catalyst, and at least 1 metal from group IIIA metal in a range of 0.1 to 5 % by weight based on the total weight of the catalyst. Said catalyst is treated and dried with a microwave at a power in a range from 400 to 1,000 watts after step of contacting with a solution comprising at least 1 transition metal salt from group VIII transition metal and after step of contacting with a solution comprising at least 1 group IIIA metal salt. Moreover, this invention also relates to a process for preparing said catalyst and a process of aromatics preparation using said catalyst.

IPC Classes  ?

• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 29/44 - Noble metals
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• B01J 29/06 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof
• B01J 29/068 - Noble metals
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts

Abstract

The present invention relates to a process to control the molecular weight distribution of polyethylene and to reduce the smoke quantity during the formation of polyethylene, wherein the process for preparing polyethylene having narrow molecular weight distribution, comprising the following steps: a) continuously polymerizing ethylene by subjecting ethylene stream, hydrogen, solvent, Ziegler-Natta catalyst comprising titanium, co-catalyst, external electron donor selected from alkoxysilane compound into the reactor to produce polymer slurry; b) removing residue reaction gas from the polymer slurry stream obtained from a) and c) separating polymer stream in b) from the solvent.

IPC Classes  ?

• C07F 17/00 - Metallocenes
• C08F 10/02 - Ethene
• C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring

Abstract

The present invention relates to the adsorbent for separating organochloride compound from liquid hydrocarbon and a process thereof, wherein said adsorbent is the silica and aluminosilicate composite having infiltrate structure subjected to the modification of the surface property with small metal having high electronegativity.

IPC Classes  ?

• C07C 17/389 - SeparationPurificationStabilisationUse of additives by adsorption on solids
• B01J 20/16 - Alumino-silicates
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01D 15/08 - Selective adsorption, e.g. chromatography

Abstract

The present invention discloses a genetically engineered Kluyveromyces sp. yeast strain that is capable of producing lactic acid from carbon source selected from glucose, fructose, sucrose or a mixture thereof wherein the genetically engineered yeast comprises at least one heterologous DNA cassette that confers production of a protein functioning as a fructose importer. The genetically engineered yeast strain according to this invention has an improvement of fructose utilization and use fructose as a faster rate than conventional strain, allowing for shorter fermentation times and improved economics.

IPC Classes  ?

• C12P 7/56 - Lactic acid
• C12N 9/12 - Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
• C07K 14/395 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi from yeasts from Saccharomyces

Abstract

The present invention relates to an olefins-paraffins separation process in feed stream containing hydrocarbons with 2 to 4 carbon atoms by facilitated transport membrane specific to olefins, comprising a step (a) of feeding the feed stream containing hydrocarbons with 2 to 4 carbon atoms into distillation column and at least 1 stage of membrane unit connected to distillation column at the feed of distillation column and at least 1 stage of membrane unit connected to the side draw of distillation column and a step (b) of separating a portion of feed stream that is passed from the membrane unit, at least 1 stream is the product stream that mostly comprising olefins and at least 1 stream that mostly comprising paraffins.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• C07C 7/04 - Purification, separation or stabilisation of hydrocarbonsUse of additives by distillation
• C07C 7/144 - Purification, separation or stabilisation of hydrocarbonsUse of additives using membranes, e.g. selective permeation

Abstract

The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.

IPC Classes  ?

• C07C 4/06 - Catalytic processes
• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 21/04 - Alumina
• B01J 21/10 - MagnesiumOxides or hydroxides thereof
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 29/04 - Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
• B01J 21/16 - Clays or other mineral silicates
• C10G 11/04 - Oxides
• B01J 35/06 - Fabrics or filaments
• C10G 11/06 - Sulfides
• C10G 11/08 - Halides

Abstract

The present invention relates to a process for removing arsine from hydrocarbon mixture having 2 to 4 carbon atoms. Said process comprises the contact of the hydrocarbon mixture having 2 to 4 carbon atoms with the adsorbent, wherein said adsorbent is the metal organic frameworks (MOFs) comprising: a) at least 1 transition metal selected from group IB metal, group 2B metal, and group 4B metal, and b) the organic ligand selected from dicarboxylic acid compound or tricarboxylic acid compound, and wherein said adsorbent is subjected to the treatment with alcohol.

IPC Classes  ?

• B01D 53/64 - Heavy metals or compounds thereof, e.g. mercury
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group

Abstract

The present invention relates to a process for removing arsine from hydrocarbon mixture having 2 to 4 carbon atoms. Said process comprises the contact of the hydrocarbon mixture having 2 to 4 carbon atoms with the adsorbent, wherein said adsorbent is the metal organic frameworks (MOFs) comprising: a) at least 1 transition metal selected from group IB metal, group 2B metal, and group 4B metal, and b) the organic ligand selected from dicarboxylic acid compound or tricarboxylic acid compound, and wherein said adsorbent is subjected to the treatment with alcohol.

IPC Classes  ?

• B01D 53/64 - Heavy metals or compounds thereof, e.g. mercury
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group

Abstract

The subject of this invention is improvements in the yield and titer of biological production of muconic acid by fermentation. Increased activity of one or more enzymes involved in the muconic acid pathway leads to increased production of muconic acid.

IPC Classes  ?

• C12P 7/46 - Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid
• C12N 9/88 - Lyases (4.)
• C12N 15/70 - Vectors or expression systems specially adapted for E. coli

Abstract

A microchannel heat exchanger comprising: at least one high temperature heat exchanging plate and at least one low temperature heat exchanging plate stacked in an alternating sequence, wherein an inlet of high temperature fluid and an outlet of high temperature fluid are disposed in order to pass the high temperature fluid through each said high temperature heat exchanging plate, and an inlet of low temperature fluid and an outlet of low temperature fluid are disposed in order to pass the low temperature fluid through each said low temperature heat exchanging plate, wherein the high temperature heat exchanging plate comprising the high temperature microchannel and the low temperature heat exchanging plate comprising the low temperature microchannel, wherein said channels have a length extending in the flow direction of fluids, and the side wall of each said channel has a symmetric wavy pattern with the center line of each said channel as a symmetric axis, wherein the high temperature heat exchanging plate and the low temperature heat exchanging plate are arranged in the pattern in which the high temperature microchannel and the low temperature microchannel are aligned.

IPC Classes  ?

• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element

Abstract

The present invention relates to a waterborne sizing composition for treating natural fibers to be used as reinforcing material in thermoplastic, comprising: (a) a polymeric material having structure (I) wherein, R represents an alkyl group, X represents a reversible covalently bonded crosslinkable group, p, q, and r represent order on a main polymer chain, wherein the total sum of order greater than 50; (b) a water-soluble metal complex having an antimicrobial property; and (c) a redox active water-soluble compound.

IPC Classes  ?

• D06M 13/50 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with organometallic compoundsTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with organic compounds containing boron, silicon, selenium or tellurium atoms
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
• C08K 5/00 - Use of organic ingredients
• C08K 5/07 - AldehydesKetones
• D06M 13/123 - PolyaldehydesPolyketones
• D06M 16/00 - Biochemical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. enzymatic
• D06M 101/06 - Vegetal fibres cellulosic

Abstract

The present invention relates to a catalyst for producing light olefins from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst comprises zeolite having the ring arrangement of 8 to 10 silicon atoms and hierarchical zeolite comprising 0.1 to 2 nm of micropore, 2 to 50 nm of mesopore, and greater than 50 nm of macropore, wherein the mesopore and macropore are greater than or equal to 40 % when comparing to total pore volume, and said catalyst comprises element having 2+to 4+ oxidation state with 0.1 to 3 % by weight of the catalyst.

IPC Classes  ?

• C07C 1/22 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms by reduction
• C07C 4/06 - Catalytic processes
• B01J 21/08 - Silica
• B01J 21/16 - Clays or other mineral silicates

Abstract

212344 represents group selected from alkylene group, cycloalkylene group, or phenylene group; X represents group selected from halogen atom, acetate group, or triflate group; b) the halohydrin agent in at least one solvent; and c) at least one base.

IPC Classes  ?

• C07F 17/00 - Metallocenes
• C07F 17/02 - Metallocenes of metals of Groups 8, 9 or 10 of the Periodic Table
• C08F 4/44 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
• C08F 4/60 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof

Abstract

212344 represents group selected from alkylene group, cycloalkylene group, or phenylene group; X represents group selected from hydrogen atom, acetate group, or triflate group; and b) the organic compound as the co-catalyst selected from compound containing nitrogen, compound of quaternary ammonium salts, or compound of iminium salts.

IPC Classes  ?

• C07F 17/00 - Metallocenes
• C07F 17/02 - Metallocenes of metals of Groups 8, 9 or 10 of the Periodic Table
• C08F 4/44 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
• C08F 4/60 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof

Abstract

Aspergillus aculeatus E14-292 and a genetic modification process of said strain, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the BCC199 (wild type). Moreover, the obtained enzymes can be used to digest the pretreatment bagasse to further produce sugars effectively.

IPC Classes  ?

• C12N 1/14 - Fungi Culture media therefor
• C12P 19/14 - Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase, e.g. by alpha-amylase
• C12P 21/02 - Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione
• C12R 1/66 - Aspergillus

Abstract

Clostridium thermocellum M2_15-C8 and a genetic modification process of said bacteria, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the wild type. Moreover, the obtained enzymes can be used to digest the pretreated bagasse to further produce sugars effectively.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• C12N 15/01 - Preparation of mutants without inserting foreign genetic material thereinScreening processes therefor
• C12P 19/02 - Monosaccharides
• C12P 19/14 - Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase, e.g. by alpha-amylase
• C12N 9/42 - Hydrolases (3.) acting on glycosyl compounds (3.2) acting on beta-1, 4-glucosidic bonds, e.g. cellulase
• C12N 9/24 - Hydrolases (3.) acting on glycosyl compounds (3.2)

IPC Classes  ?

• A61K 36/064 - Saccharomycetales, e.g. baker's yeast
• C12N 1/15 - Fungi Culture media therefor modified by introduction of foreign genetic material
• C12N 1/16 - YeastsCulture media therefor

Abstract

Yeast strains and fermentation process for producing D-lactic acid and L-lactic acid are disclosed with higher titer, higher yield, shorter time, lower pH, and higher average specific productivity.

IPC Classes  ?

• C12P 7/56 - Lactic acid
• C12N 1/18 - Baker's yeastBrewer's yeast
• C12R 1/85 - Saccharomyces

Abstract

The present invention relates to an isomerization process of product obtained from bisphenol preparation from a condensation reaction of ketone and phenol comprising contacting the product obtained from bisphenol preparation from a condensation reaction of ketone and phenol with the ion exchange resin in aqueous condition for the isomerization of the undesired product and separating the product having higher bisphenol content, wherein said ion exchange resin is aromatic polymer having the sulfonic acid group modified with at least one promoter selected from the compound shown in the structure (I):

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
• C07C 39/16 - Bis(hydroxy phenyl)alkanesTris(hydroxy phenyl)alkanes
• C07C 39/12 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
• C07C 37/68 - SeparationPurificationStabilisationUse of additives
• C07C 39/14 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with at least one hydroxy group on a condensed ring system containing two rings

Abstract

The present invention relates to an olefins-paraffins separation process in feed stream containing hydrocarbons with 2 to 4 carbon atoms by facilitated transport membrane specific to olefins, comprising the following step: a. feeding the feed stream containing hydrocarbons with 2 to 4 carbon atoms into distillation column and at least 1 stage of membrane unit connected to distillation column at the feed of distillation column and at least 1 stage of membrane unit connected to the side draw of distillation column; and b. separating a portion of feed stream that is passed from the membrane unit, at least 1 stream is the product stream that mostly comprising olefins and at least 1 stream that mostly comprising paraffins.

IPC Classes  ?

• C07C 7/04 - Purification, separation or stabilisation of hydrocarbonsUse of additives by distillation
• C07C 7/144 - Purification, separation or stabilisation of hydrocarbonsUse of additives using membranes, e.g. selective permeation

Abstract

3) ratio more than 120 and group X metal(s) in a range of 0.3 to 5% by weight. The catalyst according to the conversion of precursor to yields and high olefins selectivity.

IPC Classes  ?

• C07C 5/333 - Catalytic processes
• B01J 29/035 - Crystalline silica polymorphs, e.g. silicalites
• B01J 29/44 - Noble metals
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/10 - Heat treatment in the presence of water, e.g. steam
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 29/46 - Iron group metals or copper

Abstract

The present invention relates to the adsorbent for separating organochloride compound from liquid hydrocarbon and a process thereof, wherein said adsorbent is the silica and aluminosilicate composite having infiltrate structure subjected to the modification of the surface property with small metal having high electronegativity.

IPC Classes  ?

• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 20/18 - Synthetic zeolitic molecular sieves
• C01G 25/03 -
• C01G 25/06 - Sulfates
• C07C 7/13 - Purification, separation or stabilisation of hydrocarbonsUse of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
• C07C 7/12 - Purification, separation or stabilisation of hydrocarbonsUse of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
• B01D 53/70 - Organic halogen compounds
• B01D 15/16 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the fluid carrier
• C01B 7/01 - ChlorineHydrogen chloride

Abstract

The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.

IPC Classes  ?

• B01J 29/06 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof
• B01J 21/16 - Clays or other mineral silicates
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
• C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves

Abstract

2/g; wherein said catalyst is prepared from a process comprising the following steps: (i) dissolving copper salt and aluminium salt in a solvent; (ii) adding organic acid into mixture obtained from step (i); (iii) heating mixture obtained from step (ii) at the temperature higher than 150° C. until said mixture is combusted into solid; and (iv) calcining the solid obtained from step (iii) at the temperature in the range from 700 to 1,000° C. The catalyst according to the invention gives a high conversion of furfural to furfuryl alcohol and high furfuryl alcohol yield.

IPC Classes  ?

• B01J 23/72 - Copper
• B01J 6/00 - CalciningFusing
• B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
• B01J 37/08 - Heat treatment
• C07D 307/44 - Furfuryl alcohol
• B01J 35/10 - Solids characterised by their surface properties or porosity

Abstract

a) a palladium metal complex as shown in structure (I); d) a reducing agent.

IPC Classes  ?

• C07C 57/03 - Monocarboxylic acids
• B01J 31/22 - Organic complexes

Abstract

This invention discloses a bioplastic composition comprising biomass as a component comprising a plastic compound resin comprising polybutylene succinate (PBS), polylactic acid (PLA), and additives selected from biomass from the coffee roasting processes, i.e. silver skin of coffee (SSC); and/or at least one fluoropolymer or fluoropolymer derivative as a friction reducing agent. This invention also relates to a process of pretreating the silver skin coffee for using as an additive for bioplastic resin to produce various products or using as a natural color masterbatch together with other plastics via extrusion, injection molding, compression and thermoforming processes in the industrial level.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08K 5/02 - Halogenated hydrocarbons
• C08K 9/00 - Use of pretreated ingredients
• C08K 11/00 - Use of ingredients of unknown constitution, e.g. undefined reaction products
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

Corrosion resistance coatings and dicyclopentadiene modified ester oligomers useful in corrosion resistant coatings. The corrosion resistant coatings exhibit improved corrosion resistance, improved adhesion, lower toxicity, unlimited pot life, and/or lower volatile organic compounds (VOCs).

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 7/65 - Additives macromolecular
• C08F 290/06 - Polymers provided for in subclass
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
• C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
• C08G 18/67 - Unsaturated compounds having active hydrogen
• C08G 18/68 - Unsaturated polyesters
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 63/553 - Acids or hydroxy compounds containing cycloaliphatic rings, e.g. Diels-Alder adducts
• C09D 151/08 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCoating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• C09D 167/06 - Unsaturated polyesters having carbon-to-carbon unsaturation
• C09D 175/16 - Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds

Abstract

The present invention relates to a chain extender for preparing a self-healing polyurethane, comprising double bond group, hydroxyl group, and carboxyl group as shown in structure (I) or derivatives thereof.

IPC Classes  ?

• C07C 33/02 - Acyclic alcohols with carbon-to-carbon double bonds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

Bacillus genus bacteria to obtain a seed culture; (b) increasing cell number of bacteria by inoculating the seed culture contained from step (a) into a fermenter containing an initial carbon source under an aerobic condition; (c) fermenting the seed culture obtained from step (b) in the fermenter under a microaerobic condition to obtain lactic acid or its salts; wherein the step (b) comprising at least one addition of the carbon source under any one of the following conditions, where are independent to each other, to increase a concentration of the carbon source: when the concentration of the carbon source in the fermenter reduces to 50 % or less comparing to the initial concentration.

IPC Classes  ?

• C12P 7/56 - Lactic acid
• C12R 1/07 - Bacillus
• C12N 1/22 - Processes using, or culture media containing, cellulose or hydrolysates thereof

Abstract

Kluyveromyces spKluyveromyces sp. yeast strain that is capable of producing lactic acid from carbon source selected from glucose, fructose, sucrose or a mixture thereof wherein the genetically engineered yeast comprises at least one heterologous DNA cassette that confers production of a protein functioning as a fructose importer. The genetically engineered yeast strain according to this invention has an improvement of fructose utilization and use fructose as a faster rate than conventional strain, allowing for shorter fermentation times and improved economics.

IPC Classes  ?

• C12N 1/16 - YeastsCulture media therefor
• C12P 7/56 - Lactic acid
• C12R 1/645 - Fungi
• C07K 14/39 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi from yeasts

Abstract

A microchannel heat exchanger comprising: at least one high temperature heat exchanging plate and at least one low temperature heat exchanging plate stacked in an alternating sequence, wherein an inlet of high temperature fluid and an outlet of high temperature fluid are disposed in order to pass the high temperature fluid through each said high temperature heat exchanging plate, and an inlet of low temperature fluid and an outlet of low temperature fluid are disposed in order to pass the low temperature fluid through each said low temperature heat exchanging plate, wherein the high temperature heat exchanging plate comprising the high temperature microchannel and the low temperature heat exchanging plate comprising the low temperature microchannel, wherein said channels have a length extending in the flow direction of fluids, and the side wall of each said channel has a symmetric wavy pattern with the center line of each said channel as a symmetric axis, wherein the high temperature heat exchanging plate and the low temperature heat exchanging plate are arranged in the pattern in which the high temperature microchannel and the low temperature microchannel are aligned.

IPC Classes  ?

• F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
• F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
• F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
• F28F 3/12 - Elements constructed in the shape of a hollow panel, e.g. with channels
• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall

Abstract

Improved yeast cell with increased succinic acid production based on yield and titer. Increased activity of one or more enzymes involved in the pentose phosphate pathway, reducing flux through phosphoglucose isomerase, increasing flux to cytoplasmic acetyl-CoA, installation of a malic enzyme, and/or installation of a formate dehydrogenase leads to increased production of succinic acid.

IPC Classes  ?

• C12N 15/81 - Vectors or expression systems specially adapted for eukaryotic hosts for fungi for yeasts
• C12P 7/46 - Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid

Abstract

This invention relates to hybrid polyols useful in the manufacture of polyurethane. The hybrid polyols of the present invention is derived by copolymerizing or grafting a traditional polyester polyol onto a natural oil polyol. In the preferred embodiment of the present invention, the traditional polyester polyol grafted onto natural oil polyol contains a high level of bio-renewable content. The hybrid polyols of the present invention with high level of bio-renewable content is useful in the manufacture of polyurethane either alone or in combination with polyester polyol or polyether polyol derived from petrochemical sources.

IPC Classes  ?

• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 63/91 - Polymers modified by chemical after-treatment
• C07C 69/675 - Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
• C08G 18/16 - Catalysts
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent

Abstract

This invention relates to the production of succinic acid and other chemicals derived from phosphoenolpyruvate (PEP) by fermentation with a microorganism in which the fermentation medium contains one or more sugars, and in which one or more of the sugars is imported into the cell by facilitated diffusion. As a specific example, succinic acid is produced from a glucose-containing renewable feedstock through fermentation using a biocatalyst. Examples of such a biocatalyst include microorganisms that have been enhanced in their ability to utilize glucose as a carbon and energy source. The biocatalysts of the present invention are derived from the genetic manipulation of parental strains that were originally constructed with the goal to produce one or more chemicals (for example succinic acid and/or a salt of succinic acid) at a commercial scale using feedstocks that include, for example, glucose, fructose, or sucrose. The genetic manipulations of the present invention involve the introduction of exogenous genes involved in the transport and metabolism of glucose or fructose into the parental strains. The genes involved in the transport and metabolism of glucose or fructose can also be introduced into a microorganism prior to developing the organism to produce a particular chemical. The genes involved in the transport and metabolism of sucrose can also be used to augment or improve the efficiency of sugar transport and metabolism by strains already known to have some ability for glucose utilization in biological fermentations.

IPC Classes  ?

• C12P 7/46 - Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid
• C12N 15/74 - Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
• C07K 14/195 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from bacteria
• C12N 1/36 - Adaptation or attenuation of cells
• C12N 15/01 - Preparation of mutants without inserting foreign genetic material thereinScreening processes therefor
• C12P 7/44 - Polycarboxylic acids

Abstract

The present invention relates to a waterborne sizing composition for treating natural fibers to be used as reinforcing material in thermoplastic, comprising: (a) a polymeric material having structure (I) wherein, R represents an alkyl group, X represents a reversible covalently bonded crosslinkable group, p, q, and r represent order on a main polymer chain, wherein the total sum of order greater than 50; (b) a water-soluble metal complex having an antimicrobial property; and (c) a redox active water-soluble compound.

IPC Classes  ?

• C08F 220/10 - Esters
• C08K 3/015 - Biocides
• C08K 3/08 - Metals
• C08K 5/07 - AldehydesKetones

Abstract

5 is selected from an alkyl group, a cycloalkyl group, or an aryl group.

IPC Classes  ?

• C07D 309/30 - Oxygen atoms, e.g. delta-lactones
• B01J 31/22 - Organic complexes

Abstract

This invention provides a process for manufacturing high performance polyester polyols with high proportion of renewable content derived from biological sources. The polyester polyols with high content of renewable biological materials produced according to the present invention display no color or odor issues and are used in the manufacture of two component polyurethanes, thermoplastic urethanes, polyurethane dispersions and polyester and polyester/urethane acrylates with outstanding physical properties.

IPC Classes  ?

• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/66 - Compounds of groups , , or
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/08 - Processes
• C09D 175/06 - Polyurethanes from polyesters
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step

Abstract

characterized in that the solution of salt in step (b) comprising a glycol solvent as a reducing agent under a basic condition, and step (b) is operated at the temperature higher than 120° C.

IPC Classes  ?

• B01J 21/00 - Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
• B01J 29/48 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 29/44 - Noble metals
• B01J 37/30 - Ion-exchange
• B01J 37/02 - Impregnation, coating or precipitation
• C07C 5/41 - Catalytic processes
• C07C 2/76 - Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen

Abstract

Improved yeast strains and fermentation process for producing D-lactic acid and L- lactic acid are disclosed. The improvement lead to higher titer, higher yield, shorter time, lower pH, and higher average specific productivity.

IPC Classes  ?

• C12P 7/56 - Lactic acid

Abstract

2 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.

IPC Classes  ?

• C08G 64/18 - Block or graft polymers
• C08G 64/12 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen containing nitrogen
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C08K 3/16 - Halogen-containing compounds
• C08K 3/26 - CarbonatesBicarbonates
• C08K 5/3432 - Six-membered rings

Abstract

This invention relates to a composition for a preparation of polyurethane dispersion, comprising bio-based polyol as shown in structure (I) and polyhydroxy fatty acid compound as shown in structure (II): wherein, R represents a polyhydric alcohol unit that is selected from aliphatic polyhydric alcohol, alicyclic polyhydric alcohol, cyclic polyhydric alcohol, aromatic polyhydric alcohol, or optionally, cyclic polyhydroxyl having heteroatom; R\ represents a hydrocarbon unit obtained from a molecular chain of unsaturated fatty acid having 14-24 carbon atoms and having from 1-6 pairs of vicinal diol group per one molecular chain of such unsaturated fatty acid; n represents an integer from 2 to 8 of an ester group obtained from a reaction of polyhydric alcohol and unsaturated fatty acid; wherein said composition is prepared from a process comprising the steps of: i. mixing fatty acid comprising unsaturated fatty acid and polyhydric alcohol at a ratio of 1 mole equivalent or more of carboxylic group from unsaturated fatty acid per a hydroxy group from polyhydric alcohol; ii. adding organic acid and peroxide compound into the mixture from step i.; iii. adding nucleophilic substance into the mixture from step ii. under acidic condition.

IPC Classes  ?

• C07C 59/105 - Polyhydroxy carboxylic acids having five or more carbon atoms, e.g. aldonic acids
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C09D 175/04 - Polyurethanes
• C09J 175/04 - Polyurethanes
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/80 - Masked polyisocyanates
• C08G 18/08 - Processes
• C07C 69/73 - Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
• C08G 18/36 - Hydroxylated esters of higher fatty acids
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08K 5/053 - Polyhydroxylic alcohols
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 5/3432 - Six-membered rings
• C08L 75/06 - Polyurethanes from polyesters

Abstract

This invention relates to a catalyst composition for a producing process of an unsaturated carboxylic acid salt and its derivatives from carbon dioxide and olefin, wherein the catalyst composition in the present invention has been proved to be effective in catalyzing the carboxylation of carbon dioxide and olefin, wherein said catalyst composition comprises: a) a palladium metal complex as shown in structure (I); {formula (I)} wherein, R1, R2, R3, and R4independently represents a group selected from hydrogen atom, halogen atom, alkyl group, alkyl halide group, alkoxy group, amine group, optionally from alkenyl group, alkynyl group, phenyl group, benzyl group, or cylic hydrocarbon group comprising hetero atom; R5 represents group selected from alkyl group or phenyl group; b) a ligand selected from organophosphorus compound; c) a base selected from sodium tert-butoxide, sodium isopropoxide, sodium 2,6-dimethylphenolate, sodium 2,6-difluorophenolate, sodium 2-methylphenolate, or sodium 2-fluorophenolate); and d) a reducing agent.

IPC Classes  ?

• C07D 309/30 - Oxygen atoms, e.g. delta-lactones
• C08C 19/36 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with oxygen or oxygen-containing groups with carboxy radicals

Abstract

2233) ratio more than 120 and group X metal(s) in a range of 0.3 to 5% by weight. The catalyst according to the conversion of precursor to yields and high olefins selectivity.

IPC Classes  ?

• B01J 29/44 - Noble metals
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 35/06 - Fabrics or filaments
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 37/02 - Impregnation, coating or precipitation
• C01B 37/02 - Crystalline silica-polymorphs, e.g. silicalites
• C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves

Abstract

The present invention relates to a coalescing agent and a coating composition containing the coalescing agent as represented in structure (I); 2 independently represents group selected from alkyl, alkenyl, alkynyl, phenyl, or benzyl groups; and X represents group selected from hydroxy or amine. The coalescing agent according to this invention contains low amount of volatile organic compounds, has no pungent odour, and environmental friendly. Moreover, it provides good efficacy when being used as coating component.

IPC Classes  ?

• C07C 69/40 - Succinic acid esters
• C09D 133/08 - Homopolymers or copolymers of acrylic acid esters
• C07C 69/42 - Glutaric acid esters
• C07C 69/48 - Azelaic acid esters
• C07C 69/50 - Sebacic acid esters
• C07C 69/34 - Esters of acyclic saturated polycarboxylic acids having an esterified carboxyl group bound to an acyclic carbon atom
• C07C 69/46 - Pimelic acid esters
• C07C 69/44 - Adipic acid esters
• C08K 5/11 - EstersEther-esters of acyclic polycarboxylic acids

Abstract

The invention provides processes for identifying and tracking genomic duplications that can occur during classical strain development or during the metabolic evolution of microbial strains originally constructed for the production of a biochemical through specific genetic manipulations, processes that stabilize the copy number of desirable genomic duplications using appropriate selectable markers, and non-naturally occurring microorganisms with stabilized copy numbers of a functional DNA sequence.

IPC Classes  ?

• C12N 1/15 - Fungi Culture media therefor modified by introduction of foreign genetic material
• C12N 1/19 - YeastsCulture media therefor modified by introduction of foreign genetic material
• C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
• C12N 15/09 - Recombinant DNA-technology
• C12N 15/52 - Genes encoding for enzymes or proenzymes
• C12N 15/90 - Stable introduction of foreign DNA into chromosome

Abstract

A device for multi-stage rotating fluidized bed comprising at least two annular chambers stacking in center axis disposed with a most outer wall and a most inner wall, wherein said most outer wall disposed with fluid feeding part comprising an inlet opening in a direction of an angle to a tangent line in order to inject fluid to said annular chambers, wherein said annular chambers is separated by a chamber wall and disposed with a solid inlet part and a solid outlet part; and wherein said most inner wall is disposed with a fluid discharging part for discharging fluid from the device. Moreover, the chamber wall is disposed with a means for transferring fluid and solid from one annular chamber to another annular chamber in a direction of from large to small chamber diameter.

IPC Classes  ?

• B01D 24/32 - Rotation
• B01F 5/00 - Flow mixers; Mixers for falling materials, e.g. solid particles
• B01J 8/04 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
• B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
• C10J 3/56 - ApparatusPlants
• F28D 11/02 - Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
• B01D 24/28 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed moving during the filtration

Abstract

This invention relates to an ion exchange resin for producing bisphenol with high percent conversion and high percent selectivity to bisphenol, especially 4,4′ isopropyhdenediphenol, wherein said ion exchange resin comprising aromatic polymer having sulfonic acid group modified with at least one promoter selected from compounds shown in the structure (I), (II), (III), (IV) or its amine salt: wherein R represents hydrocarbon unit with 1 to 6 carbon atoms selected from alkyl group, alkenyl group, alkynyl group, phenyl group, or optionally hydrocarbon containing carbonyl group having 1 to 6 carbon atoms; X represents heteroatom; n is an integer number from 1 to 4.

IPC Classes  ?

• C08L 25/08 - Copolymers of styrene
• B01J 31/30 - Halides
• B01J 39/00 - Cation exchangeUse of material as cation exchangersTreatment of material for improving the cation exchange properties
• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C08F 8/34 - Introducing sulfur atoms or sulfur-containing groups
• C08F 8/30 - Introducing nitrogen atoms or nitrogen-containing groups
• B01J 31/08 - Ion-exchange resins
• B01J 39/20 - Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
• C07C 39/16 - Bis(hydroxy phenyl)alkanesTris(hydroxy phenyl)alkanes
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08K 5/3432 - Six-membered rings
• C08F 212/08 - Styrene
• C08F 212/36 - Divinylbenzene

Abstract

Clostridium thermocellumClostridium thermocellum M2_15-C8 and a genetic modification process of said bacteria, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the wild type. Moreover, the obtained enzymes can be used to digest the pretreated bagasse to further produce sugars effectively.

IPC Classes  ?

• C12N 15/09 - Recombinant DNA-technology
• C12N 15/82 - Vectors or expression systems specially adapted for eukaryotic hosts for plant cells
• C12P 7/06 - Ethanol, i.e. non-beverage

Abstract

The present invention relates to a new diethanolamine derivative chelating agent having a high water solubility, a good chelating property, and biological degradation. The said new chelating agent can be prepared from reaction of diethanolamine and cyclic anhydride compound using lewis acid as the catalyst. The said process is uncomplicated, and does not use a severe condition, and also reduces the use of harmful chemicals.

IPC Classes  ?

• C07C 233/16 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
• C07C 233/30 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by doubly-bound oxygen atoms

Abstract

Aspergillus aculeatus Aspergillus aculeatus E14-292 and a genetic modification process of said strain, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the BCC199 (wild type). Moreover, the obtained enzymes can be used to digest the pretreatment bagasse to further produce sugars effectively.

IPC Classes  ?

• C12N 9/00 - Enzymes, e.g. ligases (6.)ProenzymesCompositions thereofProcesses for preparing, activating, inhibiting, separating, or purifying enzymes
• C12N 9/10 - Transferases (2.)
• C12N 9/20 - Triglyceride splitting, e.g. by means of lipase
• C12N 9/24 - Hydrolases (3.) acting on glycosyl compounds (3.2)
• C12N 15/80 - Vectors or expression systems specially adapted for eukaryotic hosts for fungi
• C12P 21/02 - Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione

Abstract

This invention relates to a thermally and/or high-energy radiation curable waterborne or 100% solid coating with high bio-based content. The coating formulation according to the present invention is derived or partially derived from melt polycondensation of a carboxylic acid and a diol with dicyclopentadiene-maleic acid half-ester or nadic acid-maleic acid half-ester or methyl nadic acid-maleic acid half-ester.

IPC Classes  ?

• C09D 167/07 - Unsaturated polyesters having carbon-to-carbon unsaturation having terminal carbon-to-carbon unsaturated bonds
• C09D 167/06 - Unsaturated polyesters having carbon-to-carbon unsaturation
• C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
• C08G 63/40 - Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
• C08G 63/685 - Polyesters containing atoms other than carbon, hydrogen, and oxygen containing nitrogen
• C09D 7/63 - Additives non-macromolecular organic
• C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
• C09D 11/104 - Polyesters
• C08K 5/053 - Polyhydroxylic alcohols
• C08K 5/092 - Polycarboxylic acids
• C08F 20/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
• C08G 63/553 - Acids or hydroxy compounds containing cycloaliphatic rings, e.g. Diels-Alder adducts
• C08G 63/78 - Preparation processes
• C08K 5/14 - Peroxides

Abstract

This invention aims to develop a process for fractionation of lignocellulosic biomass by contacting lignocellulosic biomass with treatment liquid in close system at temperature not over 200° C. and pressure of 5 to 20 bars, wherein said treatment liquid comprises water-miscible part that comprising formic acid, alcohol, and water and water-immiscible part that comprising alkyl acetate. The lignocellulosic biomass may be selected from rice straw, bagasse, corncobs, corn stem, palm waste, grass, pineapple shell, bamboo, or mixture thereof.

IPC Classes  ?

• C08L 5/14 - HemicelluloseDerivatives thereof
• C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
• C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
• C08H 8/00 - Macromolecular compounds derived from lignocellulosic materials
• B01D 11/04 - Solvent extraction of solutions which are liquid

Abstract

A heat exchanger for exchanging heat of fluids having different temperatures, comprising: at least one smooth heat exchanging plate; at least one high temperature heat exchanging plate; and at least one low temperature heat exchanging plate stacked in an alternating sequence, wherein an inlet of high temperature fluid and an outlet of high temperature fluid are disposed in order to pass a high temperature fluid through each said high temperature heat exchanging plate, and an inlet of low temperature fluid and an outlet of low temperature fluid are disposed in order to pass a low temperature fluid through each said low temperature heat exchanging plate, wherein said high temperature heat exchanging plate and said low temperature the heat exchanging plate comprising a high temperature channel and a low temperature channel, wherein said channels have a length extending in a flow direction of said fluids and a side wall of each said channel has a symmetric wavy pattern with the center line of said channel.

IPC Classes  ?

• F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28D 9/02 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the heat-exchange media travelling at an angle to one another
• F28F 3/00 - Plate-like or laminated elementsAssemblies of plate-like or laminated elements
• F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
• F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
• F28F 3/12 - Elements constructed in the shape of a hollow panel, e.g. with channels

Abstract

This present invention relates to a catalyst composition for a production process of δ-lactone from carbon dioxide and 1,3 -butadiene that can efficiently catalyze the synthesis reaction of δ-lactone with good selectivity of δ-lactone, wherein said catalyst composition comprising: a) palladium metal complexes as shown in structure (I) [Formula should be inserted here] wherein, R1, R2, R3 and R4 independently represents a group selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amine group, or optionally an alkenyl group, an alkynyl group, a phenyl group, a benzyl group, or a cyclic hydrocarbon group comprising a hetero atom; and b) phosphorus compound selected from a phosphine group having a general formula [Formula should be inserted here], wherein R5 is selected from an alkyl group, a cycloalkyl group, or an aryl group.

IPC Classes  ?

• C07D 309/30 - Oxygen atoms, e.g. delta-lactones
• C07D 315/00 - Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups

Abstract

Described herein are solid acid catalysts and the methods for catalytically preparing α,β-unsaturated carboxylic acids and/or esters thereof. In one aspect, a zeolite catalyst may be used. The catalyst may, in certain embodiments, be modified to improve the selectivity and/or conversion of a reaction. For instance, a catalyst may be modified by ion exchange to achieve a desirable acidity profile in order to achieve high level of conversion of reactants and selectivity for desirable products of the catalytic reaction. In another aspect, a variety of feed stocks (e.g., starting compositions) may be used including an α-hydroxycarboxylic acid, an α-hydroxycarboxylic acid ester, a β-hydroxycarboxylic acid, a β-hydroxycarboxylic acid ester, cyclic esters thereof (e.g., lactide), and combinations thereof.

IPC Classes  ?

• C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
• C07C 45/54 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
• B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 29/60 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the type L
• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 29/18 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the mordenite type
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/30 - Ion-exchange
• B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals

Abstract

This invention relates to a fermentation process for producing D-lactic acid or its salts. The said process comprises the following steps: cultivating of Sporolactobacillus laevolacticus bacteria strain by fermentation with sugarcane juice in order to obtain the seed culture; fermenting of the obtained seed culture in sugarcane juice, wherein the cultivation step is operated for the time that the final concentration of Sporolactobacillus laevolacticus strain in the cultivation step is in a range of 400 to 1,600 mg of dry cell per liter. The said process according to the invention can provide high productivity and yield of the D-lactic acid with a high optical purity. Moreover, the said process can be easily done and reduces the complicate steps.

IPC Classes  ?

• C12N 1/14 - Fungi Culture media therefor
• C12P 7/56 - Lactic acid
• C12R 1/645 - Fungi

Abstract

The present invention relates to a coalescing agent as represented in structure (I); wherein; n is integer from 1 to 8; R1and R2 independently represent group selected from hydrogen atom, alkyl, alkenyl, alkynyl, phenyl, benzyl groups, or optionally cyclic hydrocarbon containing heteroatom; and Y represents group selected from alkyl, alkenyl, alkynyl, phenyl, benzyl groups, or cyclic hydrocarbon containing heteroatom. The said coalescing agent can be used in coating application with efficacy to provide smooth consistent film with chemical and scratch resistant and has no pungent odour, wherein the preparation method of this compound is simplify and employs less harmful chemicals.

IPC Classes  ?

• C07D 317/24 - Radicals substituted by singly bound oxygen or sulfur atoms esterified
• C07D 317/30 - Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links

Abstract

This invention relates to hybrid polyols useful in the manufacture of polyurethane. The hybrid polyols of the present invention is derived by copolymerizing or grafting a traditional polyester polyol onto a natural oil polyol. In the preferred embodiment of the present invention, the traditional polyester polyol grafted onto natural oil polyol contains a high level of bio- renewable content. The hybrid polyols of the present invention with high level of bio-renewable content is useful in the manufacture of polyurethane either alone or in combination with polyester polyol or polyether polyol derived from petrochemical sources.

IPC Classes  ?

• C08K 5/10 - EstersEther-esters
• C08K 5/05 - AlcoholsMetal alcoholates

Abstract

The present invention relates to a copper aluminium oxide catalyst for preparing a furfuryl alcohol from a furfural, comprising a copper-alumina spinel structure and having surface area in the range from 0.5 to 5 m2 /g; wherein said catalyst is prepared from a process comprising the following steps: (i) dissolving copper salt and aluminium salt in a solvent; (ii) adding organic acid into mixture obtained from step (i); (iii) heating mixture obtained from step (ii) at the temperature higher than 150 °C until said mixture is combusted into solid; and (iv) calcining the solid obtained from step (iii) at the temperature in the range from 700 to 1,000 °C. The catalyst according to the invention gives a high conversion of furfural to furfuryl alcohol and high furfuryl alcohol yield.

IPC Classes  ?

• B01J 23/72 - Copper
• B01J 21/04 - Alumina
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C07D 307/44 - Furfuryl alcohol

Abstract

The present invention relates to a novel Bacillus aerolacticus BC-001 species and a method for producing lactic acid or its salts using said bacteria, wherein the novel bacteria species can produce L-lactic acid or its salts with high optical purity from carbohydrate carbon sources, including oligosaccharide, disaccharide and monosaccharide, wherein said bacteria can grow well under an aerobic condition, tolerate to high temperature in a range of 45 to 60°C.

IPC Classes  ?

• C12P 7/56 - Lactic acid

Abstract

The present invention relates to a coalescing agent and a coating composition containing the coalescing agent as represented in structure (I); wherein; n is integer from 1 to 8; R1 and R2 independently represents group selected from alkyl, alkenyl, alkynyl, phenyl, or benzyl groups; and X represents group selected from hydroxy or amine. The coalescing agent according to this invention contains low amount of volatile organic compounds, has no pungent odour, and environmental friendly. Moreover, it provides good efficacy when being used as coating component.

IPC Classes  ?

• C08K 5/10 - EstersEther-esters
• C08J 3/02 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
• C07C 69/04 - Formic acid esters

Abstract

The present invention relates to a method for preparing a blend composition of flour and polyolefin by using twin screw extruder, wherein said method comprising the following steps: (a) adding flour containing protein, fiber, and lipid in the range from 5 to 25 % by dry weight into position 1 of said twin screw extruder; (b) adding plasticizer into position 2 of said twin screw extruder; (c) adding polyolefin into position 3 of said twin screw extruder; wherein distance between position 1 and position 2 is in the range from 0 to 0.2 times of total length of extruder, and distance between position 2 and position 3 is in the range from 0.1 to 0.3 times of total length of extruder; and wherein overall temperature of said twin screw extruder is in the range from 90 to 210 °C, and screw speed of said twin screw extruder is in the range from 200 to 500 rpm.

IPC Classes  ?

• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 15/00 - Accessories for mixers
• B01F 15/04 - Forming a predetermined ratio of the substances to be mixed

Abstract

The present invention relates to a pretreatment process of lignocellulosic biomass, comprising contacting lignocellulosic biomass with pretreatment solution in a temperature ranging from an ambient temperature to 100° C. and a pressure of at least 20 bars, wherein the pretreatment solution comprising water, water-miscible organic solvent and alkali having a concentration of 5 to 15% w/v if the alkali is solid or 5 to 15% v/v if the alkali is liquid. Said pretreatment process operates in mild condition or at low temperature to be specified with the removing of lignin but not destroying cellulose and increasing desired sugar yield.

IPC Classes  ?

• C12P 19/02 - Monosaccharides
• D21C 3/02 - Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
• D21C 3/20 - Pulping cellulose-containing materials with organic solvents
• C13K 1/02 - GlucoseGlucose-containing syrups obtained by saccharification of cellulosic materials
• C12P 7/64 - FatsFatty oilsEster-type waxesHigher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl groupOxidised oils or fats
• D21C 11/00 - Regeneration of pulp liquors

Abstract

The present invention relates to a method for preparing poly(carbonate- etherimide) compound comprising polycarbonate segment as shown in the structure (A) and polyetherimide segment as shown in the structure (B). Said method does not contain a highly toxic phosgene in its operation, can be performed easily, and can be operated at not high temperature. wherein R1 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; R2 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.

IPC Classes  ?

• C07D 209/00 - Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
• C07D 209/48 - Iso-indolesHydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
• C08G 64/12 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen containing nitrogen
• C08G 73/16 - Polyester-imides
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

This invention relates to an ion exchange resin for producing bisphenol with high percent conversion and high percent selectivity to bisphenol, especially 4,4' isopropyhdenediphenol, wherein said ion exchange resin comprising aromatic polymer having sulfonic acid group modified with at least one promoter selected from compounds shown in the structure (I), (II), (III), (IV) or its amine salt: wherein R represents hydrocarbon unit with 1 to 6 carbon atoms selected from alkyl group, alkenyl group, alkynyl group, phenyl group, or optionally hydrocarbon containing carbonyl group having 1 to 6 carbon atoms; X represents heteroatom; n is an integer number from 1 to 4.

IPC Classes  ?

• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• B01J 31/10 - Ion-exchange resins sulfonated
• B01J 31/08 - Ion-exchange resins

Abstract

This invention aims to develop a process tor fractionation of lignocellulosic biomass by contacting lignocelluIosic biomass with treatment liquid in close system at temperature not over 200 °C and pressure of 5 to 20 bars, wherein said treatment liquid comprises water-miscible part that comprising formic acid, alcohol, and water and water-immiscible part that comprising alkyl acetate. The lignocellulosic biomass may be selected from rice straw, bagasse, corncobs, corn stem, palm waste, grass, pineapple shell, bamboo, or mixture thereof.

IPC Classes  ?

• C07H 1/08 - SeparationPurification from natural products
• C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
• D21C 3/04 - Pulping cellulose-containing materials with acids, acid salts, or acid anhydrides

Abstract

The present invention relates to a thermoplastic composition with improved mechanical properties in order to broaden applications of this composition, especially outdoor application. Said thermoplastic composition comprising 60 to 80 parts by weight of aromatic polycarbonate and 20 to 40 parts by weight of acrylonitrile-styrene- acrylate polymer, characterized in that said aromatic polycarbonate has linear structure and its molecular weight is in a range of 20,000 to 35,000 g/mol; and said acrylonitrile-styrene-acrylate polymer comprising 60 wt % or more of rubber grafted with styrene and acrylonitrile polymer and 40 wt % or less of styrene and acrylonitrile polymer.

IPC Classes  ?

• C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 25/08 - Copolymers of styrene
• C08L 35/06 - Copolymers with vinyl aromatic monomers
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

This invention relates to a process for producing lactic acid or its salts that can be performed easily, reduce complicated steps, and provide high lactic acid yield and high productivity, wherein said process comprising the following steps: (a) cultivating thermotolerance Bacillus genus bacteria to obtain a seed culture; (b) increasing cell number of bacteria by inoculating the seed culture obtained from step (a) into a fermenter containing an initial carbon source under an aerobic condition; (c) fermenting the seed culture obtained from step (b) in the fermenter under a microaerobic condition to obtain lactic acid or its salts; wherein the step (b) comprising at least one addition of the carbon source under any one of the following conditions, which are independent to each other, to increase a concentration of the carbon source: - when the concentration of carbon source in the fermenter reduces to 50 % or less comparing to the initial concentration.

IPC Classes  ?

• C12P 7/56 - Lactic acid
• C12N 1/20 - BacteriaCulture media therefor
• C12N 1/22 - Processes using, or culture media containing, cellulose or hydrolysates thereof

Abstract

This invention relates to a composition for a preparation of polyurethane dispersion, comprising bio-based polyol as shown in structure (I) and polyhydroxy fatty acid compound as shown in structure (II): wherein, R represents a polyhydric alcohol unit that is selected from aliphatic polyhydric alcohol, alicyclic polyhydric alcohol, cyclic polyhydric alcohol, aromatic polyhydric alcohol, or optionally, cyclic polyhydroxyl having heteroatom; R\ represents a hydrocarbon unit obtained from a molecular chain of unsaturated fatty acid having 14 - 24 carbon atoms and having from 1 - 6 pairs of vicinal diol group per one molecular chain of such unsaturated fatty acid; n represents an integer from 2 to 8 of an ester group obtained from a reaction of polyhydric alcohol and unsaturated fatty acid; wherein said composition is prepared from a process comprising the steps of: i. mixing fatty acid comprising unsaturated fatty acid and polyhydric alcohol at a ratio of 1 mole equivalent or more of carboxylic group from unsaturated fatty acid per a hydroxy group from polyhydric alcohol; ii. adding organic acid and peroxide compound into the mixture from step i.; iii. adding nucleophilic substance into the mixture from step ii. under acidic condition.

IPC Classes  ?

• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08G 18/36 - Hydroxylated esters of higher fatty acids
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

This invention relates to improvements in the fermentation process used in the production of organic acids from biological feedstock using bacterial catalysts. The improvements in the fermentation process involve providing a fermentation medium comprising an appropriate form of inorganic carbon, an appropriate amount of aeration and a biocatalyst with an enhanced ability to uptake and assimilate the inorganic carbon into the organic acids. This invention also provides, as a part of an integrated fermentation facility, a novel process for producing a solid source of inorganic carbon by sequestering carbon released from the fermentation in an alkali solution.

IPC Classes  ?

• C12P 7/46 - Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid

Goods & Services

Plastic unprocessed; chemical products used in the plastic industry, namely, unprocessed polyethylene resins Semi-processed plastics in the form of pellets, films, sheets, tubes, bars or rods; synthetic resins in semi-processed form in the form of pellets

Abstract

The present invention is in the field of producing bio-based commodity organic chemicals such as bio-acrylic acid, bio-acrylonitrile, and bio-1,4-butanediol using renewable carbon sources as feedstock. In the first stage of the present invention, bio-1,3-propanediol is derived from renewable carbon sources through microbial fermentation. In the second stage of the present invention, bio-1,3-propanediol is converted into bio-acrylic acid or bio-acrylonitrile or bio-1,4-butanediol.

IPC Classes  ?

• C07C 51/27 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
• C07C 29/60 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by elimination of hydroxy groups, e.g. by dehydration
• C07C 51/285 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with peroxy-compounds
• C07C 209/16 - Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of hydroxy groups or of etherified or esterified hydroxy groups with formation of amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
• C07C 253/26 - Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
• C07C 29/44 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon double or triple bond
• C07C 51/16 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation

Abstract

This invention relates to a biodegradable copolyester composition, comprising: a) from 40 to 60 mol %, based on total mole of a) and b), of aromatic dicarboxylic acid selected from benzene dicarboxylic acid or ester derivative of said acid; b) from 40 to 60 mol %, based on total mole of a) and b), of a mixture of aliphatic dicarboxylic acid, wherein b) comprising: bl) from 20 to 80 mol %, based on mole of b), of at least one aliphatic dicarboxylic acid having 2 to 6 carbon atoms; and b2) from 20 to 80 mol %, based on mole of b), of at least one aliphatic dicarboxylic acid having 7 to 14 carbon atoms; c) at least one mole equivalent, based on total mole of a) and b), of diol having 2 to 6 carbon atoms; and d) from 0.1 to 2.0 mole % based on total mole of a), b), c), and d), of alcohol with at least 3 hydroxyl groups. The biodegradable copolyester composition according to this invention has improved thermal property, mechanical property, and biodegradability.

IPC Classes  ?

• C08G 63/183 - Terephthalic acids
• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

The present invention relates to a process for improving stability of zeolite catalyst to use in cumene production by alkylation of benzene with isopropyl alcohol comprising contacting zeolite catalyst with silane compound in a certain condition. This results in the zeolite catalyst which is stable to water which is by-product of the reaction, providing longer ability to catalyze alkylation reaction.

IPC Classes  ?

• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 29/06 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof
• C07C 2/66 - Catalytic processes

Abstract

This invention relates to a method for preparing diethanolamine derivatives having the structure (I): Formula (I); wherein Formula (II); R1 represents structure (II) R2 represents hydrogen or structure (II); X represents hydrogen, alkali or alkaline earth metal; by reacting diethanolamine with maleic anhydride, butenedioic acid or butenedioic acid salts in the presence of alkali or alkaline earth metal hydroxide.

IPC Classes  ?

• C07C 227/16 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions not involving the amino or carboxyl groups
• C07C 229/24 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid

Abstract

The present invention relates to a pretreatment process of lignocellulosic biomass, comprising contacting lignocellulosic biomass with pretreatment solution in a temperature ranging from an ambient temperature to 100 °C and a pressure of at least 20 bars, wherein the pretreatment solution comprising water, water-miscible organic solvent and alkali having a concentration of 5 to 15% w/v if the alkali is solid or 5 to 15% v/v if the alkali is liquid.. Said pretreatment process operates in mild condition or at low temperature to be specified with the removing of lignin but not destroying cellulose and increasing desired sugar yield.

IPC Classes  ?

• C13K 1/02 - GlucoseGlucose-containing syrups obtained by saccharification of cellulosic materials
• D21C 3/02 - Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
• C12P 7/10 - Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material

Abstract

This invention relates to the metabolic evolution of a microbial organism previously optimized for producing an organic acid in commercially significant quantities under fermentative conditions using a hexose sugar as sole source of carbon in a minimal mineral medium. As a result of this metabolic evolution, the microbial organism acquires the ability to use pentose sugars derived from cellulosic materials for its growth while retaining the original growth kinetics, the rate of organic acid production and the ability to use hexose sugars as a source of carbon. This invention also discloses the genetic change in the microorganism that confers the ability to use both the hexose and pentose sugars simultaneously in the production of commercially significant quantities of organic acids.

IPC Classes  ?

• C12P 7/46 - Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid
• C12N 9/00 - Enzymes, e.g. ligases (6.)ProenzymesCompositions thereofProcesses for preparing, activating, inhibiting, separating, or purifying enzymes
• C12N 9/88 - Lyases (4.)

Abstract

The present invention relates to a method for preparing a high activity olefin polymerization catalyst, which is easy to be produced, reducing complicated steps, and can be produced at low temperature, wherein said method comprising the following steps: • (a) adding a magnesium halide into an alcohol solvent; • (b) precipitating the solution obtained from (a) in a solution of an organic solvent containing an organo compound of group III element; • (c) adding a titanium compound into the mixture obtained from (b) to obtain a catalyst; • (d) treating the catalyst obtained from (c) with an organoaluminium compound at a temperature ranging from 0 to 60 °C for 2 to 5 hours, wherein the mole ratio of aluminium to titanium (Al/Ti) for treatment is in a range of 1 to 30.

IPC Classes  ?

• C08F 4/655 - Pretreating with metals or metal-containing compounds with aluminium or compounds thereof
• C08F 110/02 - Ethene

Abstract

The present invention disclosed a bio-based polymer additive, its preparation process and a biodegradable polymer composition comprising the said bio-based polymer additive for use in manufacturing of biodegradable plastic. The said additive is prepared from the biomass of broken microorganism cell such as microalgae, yeast or other microorganisms. In particular, the bio-based polymer additive is for enhancing rheological properties and/or biodegradability of a polymer. In particular, the additive is for use as a pigment.

IPC Classes  ?

• A23L 1/27 - Colouring or decolouring of foods
• C09B 61/00 - Dyes of natural origin prepared from natural sources
• C12C 5/04 - Colouring additives
• C08K 5/1545 - Six-membered rings
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 89/00 - Compositions of proteinsCompositions of derivatives thereof
• C08L 99/00 - Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups or
• C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
• C07C 7/00 - Purification, separation or stabilisation of hydrocarbonsUse of additives
• C07C 13/28 - Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
• C07D 311/04 - Benzo [b] pyrans, not hydrogenated in the carbocyclic ring
• C07D 471/22 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups in which the condensed systems contains four or more hetero rings
• C08K 5/01 - Hydrocarbons
• C08K 5/053 - Polyhydroxylic alcohols
• C08K 5/3415 - Five-membered rings
• C08K 5/3417 - Five-membered rings condensed with carbocyclic rings

Abstract

The present invention relates to a molecular weight enhancing agent of polyester comprising amido alkylidene malonate, a process for enhancing molecular weight and polyester obtained from the molecular weight enhancing agent. The molecular weight enhancing agent contains alkylidene malonate group having amido electron withdrawing group in the structure at alpha-carbon position. The molecular weight enhancing agent has high reactivity and can be used at low temperature, thus is suitable for polyester, especially, low melting point polyester and reduces energy consumption during the process.

IPC Classes  ?

• C07D 319/06 - 1,3-DioxanesHydrogenated 1,3-dioxanes not condensed with other rings
• C07D 319/08 - 1,3-DioxanesHydrogenated 1,3-dioxanes condensed with carbocyclic rings or ring systems
• C08G 63/91 - Polymers modified by chemical after-treatment