222322322322. The catalyst has high catalytic efficiency in a deamination cyclization reaction. Aliphatic nitrogen-containing heterocyclic compounds such as piperidine, pyrrolidine, morpholine, and piperazine are rapidly synthesized by means of one-step deamination cyclization reaction. The catalyst has the advantages of wide substrate range, high reaction efficiency, good selectivity, simple operation and small pollution, and has wide industrial application prospects.
A polyamide 56 resin, a fiber, a preparation method therefor and use thereof are provided. The method for preparing the polyamide 56 resin comprises a step of preparing the polyamide 56 resin from monomers by a polymerization reaction, wherein the polyamide 56 resin contains titanium dioxide, and the titanium dioxide is added during polymerization. The method for preparing the polyamide 56 resin in an embodiment can effectively prevent problems such as monofilament breakage and poor dyeing performance in a subsequent spinning process. In addition, the method is simple and easy to operate, and has a low production cost.
D01D 4/06 - Distribution de la solution ou de la masse de filage vers des buses de filage
D01D 5/084 - Chauffage des filaments, fils ou similaires, à la sortie des filières
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
D01D 5/096 - Réglage de l'humidité, ou lubrification des filaments, fils ou similaires, à la sortie des filières
D01D 5/098 - Méthodes de filage à partir de masses en fusion avec étirage simultané
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
3.
POLYAMIDE RESIN AND PREPARATION METHOD THEREFOR, COMPOSITION, AND FIBER PRODUCT
The present disclosure provides a polyamide resin and a preparation method therefor, a composition, and a fiber product. The polyamide comprises diamine structural units and diacid structural units, wherein 90 mol % or more of the diacid structural units are derived from adipic acid, 90 mol % or more of the diamine structural units are derived from 1,5-pentanediamine, and the polyamide resin contains a water-extractable substance in a content of 0.7 wt. % or less. The water-extractable substance has a number average molecular weight of 2000 or less. The preparation method of the polyamide resin of the present disclosure is simple without using large-scale equipment, and the process parameters thereof are easy to control, thereby facilitating mass production thereof. The polyamide resin of the present disclosure has a long spinneret wipe cycle time and less broken filament times, and the obtained fiber has less broken filaments, low yarn unevenness, less dyed dark grain, a good dyeing effect, and an excellent elongation at break, breaking strength and a lower boiling water shrinkage, a high spinning yield and a high dyeing yield.
C08G 69/36 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés d'aminoacides, de polyamines et d'acides polycarboxyliques
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D02G 3/02 - Filés ou fils caractérisés par la matière ou par les matières dont ils sont composés
D02G 3/34 - Filés ou fils comportant des boutons, des grosseurs, des spirales, des boucles, des flammes et autres effets irréguliers ou décoratifs, c.-à-d. filés ou fils à effet
4.
A LONG CHAIN DIBASIC ACID WITH LOW CONTENT OF LONG CHAIN DIBASIC ACID IMPURITY OF SHORTER CARBON-CHAIN AND PREPARATION METHOD THEREOF
The present invention relates to a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain, to the preparation of a long-chain dibasic acid producing strain by directed evolution of POX gene and homologous recombination, and to the production of a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain by using the strain. The present invention also relates to a strain containing a mutated promoter, wherein, when a long-chain dibasic acid is produced by fermentation of this strain, the content of the acid impurity of shorter carbon chain in the fermentation product is significantly reduced.
A bio-based polyamide elastomer and a preparation method therefor. The bio-based polyamide elastomer is prepared using specific aliphatic diacid and pentanediamine prepared by biological methods as monomers. The polyamide elastomer of the present disclosure has excellent performance and stable monomer supply, solves the problem of excessively high cost of polyamide elastomer, expands the application scenarios of elastomers, and has high commercial value.
The present application provides a high temperature resistant semi-aromatic polyamide resin and a preparation method thereof, a composition, and an article. Polymeric monomers of the polyamide resin include a diamine monomer and a diacid monomer, where the diamine monomer includes a diamine monomer A1 and a diamine monomer A2, and the diacid monomer includes a diacid monomer B1 and a diacid monomer B2. The carbon atom number CA1 of the diamine monomer A1 and the carbon atom number CA2 of the diamine monomer A2 satisfy that CA1−CA2≥4, the diacid monomer B1 is selected from aromatic dicarboxylic acids with a carbon atom number of 7-12 and derivatives thereof, and the diacid monomer B2 is selected from aliphatic dicarboxylic acids with a carbon atom number of 4-18.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
7.
HIGH TEMPERATURE RESISTANT SEMI-AROMATIC COPOLYIMIDE, PREPARATION METHOD, COMPOSITIONS, AND MOLDED PRODUCT
The present disclosure provides a semi-aromatic copolyamide, its preparation method, compositions, and a molded product thereof. The semi-aromatic copolyamide is formed from raw materials including diacid monomers and diamine monomers. The diacid monomers include aromatic diacid or derivatives of the aromatic diacid and aliphatic diacid. The diamine monomers include decamethylene diamine and pentamethylene diamine. The molar ratio of the decamethylene diamine to the pentamethylene diamine is in a range of 1:1 to 30:1.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Chemical fibers for textile use; Nylon fibers for textile use; Plastic fibres for textile use; Raw fibrous textile; Synthetic fibers and filaments for use in the manufacture of fabrics, textiles, yarns, and carpets; Textile bags for packaging; Textile fibres; Yarn fibers Artificial resins, semi-processed; High heat thermoplastic resin in pellet form for use in manufacturing; Plastic substances, semi-processed; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Synthetic resins, semi-processed
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Polyamide; Artificial resins, unprocessed; Plastics in unprocessed form, in powder, liquid or paste form; Plastics, unprocessed; Synthetic resins, unprocessed; Thermoplastic resins, unprocessed; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; Unprocessed artificial resins for industrial purposes; Unprocessed synthetic resins for use in the manufacture of molding compounds Artificial resins, semi-processed; Plastic substances, semi-processed; Synthetic resins, semi-processed
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
23 - Fils à usage textile
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Chemical fibers for textile use; Nylon fibers for textile use; Plastic fibres for textile use; Raw fibrous textile; Synthetic fibers and filaments for use in the manufacture of fabrics, textiles, yarns, and carpets; Textile bags for packaging; Textile fibres; Yarn fibers Polyamide; Artificial resins, unprocessed; Plastics in unprocessed form, in powder, liquid or paste form; Plastics, unprocessed; Polymer resins, unprocessed; Synthetic resins, unprocessed; Unprocessed polyamide resins; Unprocessed polymers; Unprocessed synthetic resins for spinning and weaving Yarn; Darning thread and yarn; Elastic thread and yarn for textile use; Elastic yarns for textile use; Heat-stable yarns and threads; Rayon thread and yarn; Rayon yarn; Threads of plastic materials for textile use; Yarn made of nylon for textile use Artificial resins, semi-processed; High heat thermoplastic resin in pellet form for use in manufacturing; Plastic substances, semi-processed; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Synthetic resins, semi-processed
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Artificial resins, unprocessed; Plastics in unprocessed form, in powder, liquid or paste form; Plastics, unprocessed; Polymer beads for use in manufacturing; Synthetic resins, unprocessed; Thermoplastic resins, unprocessed; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; Unprocessed artificial resins for industrial purposes Artificial resins, semi-processed; Plastic substances, semi-processed; Synthetic resins, semi-processed
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Artificial resins, unprocessed; Industrial chemicals; Plastics, unprocessed; Polymer resins, unprocessed; Unprocessed polyamide resins; Unprocessed synthetic resins Artificial resins, semi-processed; Flexible hoses, not of metal; High heat thermoplastic resin in pellet form for use in manufacturing; Insulating fabrics; Insulating materials; Junctions, not of metal, for pipes; Plastic substances, semi-processed; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Stuffing of rubber or plastics; Synthetic resins, semi-processed; Washers of rubber or vulcanized fibre
13.
LONG-CARBON-CHAIN POLYAMIDE RESIN COMPOSITION AND CONTINUOUS FIBER REINFORCED LONG-CARBON-CHAIN POLYAMIDE COMPOSITE MATERIAL
Shanxi Synthetic Biology Institute Co., Ltd. (Chine)
Inventeur(s)
Li, Yuanping
Guan, Bing
Liu, Xiucai
Abrégé
Disclosed are a long-carbon-chain polyamide resin composition and a continuous fiber reinforced long-carbon-chain polyamide composite material. The long-carbon-chain polyamide resin composition includes the following components in parts by weight: 81.8-99.8 parts by mass of long-carbon-chain bio-based polyamide 5X resin, 0.2-1.6 parts by mass of an antioxidant, 0-0.8 parts by mass of a lubricant, 0-15 parts by mass of a compatibilizer, and 0-0.8 parts by mass of a coupling agent. The continuous fiber reinforced long-carbon-chain polyamide composite material prepared on the basis of the long-carbon-chain polyamide resin composition has high fiber content and good mechanical properties, is recyclable and can be used in fields of aerospace, military, automotive materials, sports equipment, building materials, electronic appliances, etc.
Shanxi Synthetic Biology Institute Co., Ltd. (Chine)
Cathay (Taiyuan) Biomaterial Co., Ltd. (Chine)
Inventeur(s)
Li, Yuanping
Guan, Bing
Liu, Xiucai
Abrégé
Provided are a flame-retardant polyamide glass fiber composition and a preparation method therefor. The flame-retardant polyamide glass fiber comprising 40-65 parts by mass of a polyamide resin, 25-40 parts by mass of glass fibers, 0-20 parts by mass of a flame retardant, 0.2-1 part by mass of an antioxidant and 0.1-2 parts by mass of other auxiliaries. The flame-retardant polyamide glass fiber composition provided in the present disclosure not only has a bio-based source, but also has a flame-retardant of V-0 in UL94 and excellent mechanical properties, and can be widely applied to the fields of various engineering plastics with high requirements for flame retardant effect and dimensional stability.
This invention provides acid decarboxylase-prion subunit fusion polypeptides, nucleic acid sequences, expression vectors, and host cells expression such fusion polypeptides to produce various amino acids and derivatives of the amino acids such as polyamines.
C07K 14/47 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant d'animauxPeptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant d'humains provenant de vertébrés provenant de mammifères
C12N 15/70 - Vecteurs ou systèmes d'expression spécialement adaptés à E. coli
16.
POLYAMIDE, PREPARATION METHOD THEREFOR, AND USE THEREOF
The present invention provides polyamide, prepared from the following components: (A) diamine, (B) diacid, and (C) an additive. (A) The diamine is composed of the following components on the basis of the total molar amount of the diamine: (a1) 30-74 mol% of pentanediamine, and (a2) 26-70 mol% of diamine containing an alicyclic ring. (B) The diacid is composed of the following components on the basis of the total molar amount of the diacid: (b1) 10-90 mol% of aliphatic diacid, and (b2) 10-90 mol% of diacid containing a benzene ring. (C) The additive is 0-50 mol% on the basis of the total molar amount of the components (A), (B) and (C). The total molar amount of the components (A), (B) and (C) is 100 mol%. The polyamide prepared in the present application has excellent transparency, toughness and impact resistance, has very good tensile strength, tensile modulus, bending strength and bending modulus, and greatly widens the usage scenarios of transparent polyamide.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
Provided are a Candida tropicalis strain Am2525, with the preservation number thereof being CCTCC NO: M 2019419, and a method for producing long-chain dicarboxylic acids by means of fermenting the strain. The method for producing the long-chain dicarboxylic acids comprises preparing a seed solution by means of the Candida tropicalis strain Am2525 and producing the long-chain dicarboxylic acids via fermentation of the seed solution. Compared with the parent, the Candida tropicalis strain Am2525 has an enhanced resistance to the toxicity of a substrate decane, improves the productivity of long-chain dicarboxylic acids, reduces the cost of production, subsequent separation and purification are simple, and the fermentation production process is easy to implement on a large scale.
A polyamide 56 resin and fiber, preparation methods therefor and the use thereof. The preparation method for the polyamide 56 resin comprises preparing the polyamide 56 resin from a monomer by means of a polymerization reaction, wherein the polyamide 56 resin contains titanium dioxide, and the titanium dioxide is added during the polymerization reaction process. The preparation method for the polyamide 56 resin in one embodiment can effectively avoid problems such as monofilament breakage and poor dyeing performance in a subsequent spinning process. In addition, the preparation method is simple and easy to operate, and has a low production cost.
D01F 6/90 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyamides
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
The present invention provides a polyamide resin, a composition, and a use in engineering plastics. A structural unit of the polyamide comprises a diamine structural unit and a dibasic acid structural unit. The content of water extractables in the polyamide resin is below 0.7wt%, and the polyamide resin comprises hypophosphite, which is converted into a content of 10-500 ppm in terms of P. The preparation method for the polyamide resin of the present invention is simple, the process parameters are easy to control, no large-scale instrument is needed, and quantitative production is convenient. The polyamide resin composition has the advantages of short molding cycle, fast crystallization speed, good quality in appearance, and the like; at the same time, said composition has the advantages of acid corrosion resistance and can be used in acidic environments, such as outer packaging and containers for acidic food.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
20.
INDUSTRIAL POLYAMIDE YARN, PREPARATION METHOD THEREFOR, AND USE THEREOF
Disclosed are an industrial polyamide yarn, a preparation method therefor, and the use thereof. The raw materials for producing the industrial polyamide yarn include at least 1,5-pentanediamine and a linear aliphatic dibasic acid; or polyamide 5X obtained by the polymerization of 1,5-pentanediamine and a linear aliphatic dibasic acid as monomers. The industrial polyamide yarn according to an embodiment has the characteristics of a low water absorption, a good dimensional stability, a high fracture strength, and a good heat resistance.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
D01D 5/098 - Méthodes de filage à partir de masses en fusion avec étirage simultané
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
21.
HIGH-TEMPERATURE-RESISTANT SEMI-AROMATIC POLYAMIDE AND PREPARATION METHOD THEREFOR, COMPOSITION, AND MOLDED ARTICLE
A1 A2A1A2A2 ≥ 4; the diacid monomer B1 is selected from an aromatic dicarboxylic acid having 7-12 carbon atoms, and a derivative thereof; and the diacid monomer B2 is selected from an aliphatic dicarboxylic acid having 4-18 carbon atoms. The polyamide resin of the present invention has better fluidity; and the larger the degree of randomness of a polymer chain, the less the entanglement between chains, and the better the fluidity of a copolyamide. By means of a one-step condensation polymerization process for the high-temperature-resistant semi-aromatic polyamide of the present invention, melting and discharging are easy, and a melt has good fluidity and stability.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
22.
ODD-NUMBERED CARBON POLYAMIDE ELASTOMER AND PREPARATION METHOD THEREFOR
Disclosed in the present invention are an odd-numbered carbon polyamide elastomer and a preparation method therefor. The odd-numbered carbon polyamide elastomer is prepared by using pentanediamine and a tridecanedioic acid prepared by a biological method as monomers. The polyamide elastomer of the present invention is excellent in performance, the source of polymerization monomers is stable, the problem that the cost of a polyamide elastomer is too high is solved, the use scene of the elastomer is widened, and the polyamide elastomer has a high commercial value.
Disclosed is a bio-based polyamide elastomer and a preparation method therefor. The bio-based polyamide elastomer is prepared by using as monomers specific aliphatic diacid and pentanediamine prepared by a biological method. The polyamide elastomer of the present invention has excellent performance and a stable polymerization monomer source, solves the problem of the excessively high cost of polyamide elastomer, broadens the usage scenarios for elastomers, and has very high commercial value.
Disclosed is a genetically engineered bacteria having enhanced superoxide dismutase activity. Using the genetically engineered bacteria can improve the conversion rate of substrates and the yield of products, and shorten the fermentation time of LCDA.
The present application discloses a polyamide 5X fiber, wherein raw materials for producing the polyamide 5X fiber comprise at least 1,5-pentane diamine and a long carbon chain diacid; or comprises a polyamide 5X obtained by the polymerization of 1,5-pentane diamine and a long carbon chain diacid as monomers. The 1,5-pentane diamine or the long carbon chain diacid are produced from bio-based raw materials by a fermentation process or an enzymatic conversion process; and the long carbon chain diacid is at least one of C6-20 aliphatic long carbon chain diacids. The long carbon chain diacid is at least one of C6-20 aliphatic long carbon chain diacids. The polyamide 5X fiber includes pre-oriented yarns, drawn textured yarns, fully drawn yarns, staple fibers, industrial yarns, continuous bulked filaments and monofilaments, preferably pre-oriented yarns, drawn textured yarns and/or fully drawn yarns. The raw materials used for producing the polyamide 5X resin are prepared by biological processes, and are green materials. The polyamide 5X fiber has good mechanical properties, dimensional stability, softness, quick-drying performance and dyeing properties.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
D01D 5/098 - Méthodes de filage à partir de masses en fusion avec étirage simultané
26.
HIGH-TEMPERATURE-RESISTANT SEMI-AROMATIC COPOLYIMIDE AND PREPARATION METHOD THEREFOR, COMPOSITION, AND MOLDED ARTICLE
Disclosed are a high-temperature-resistant semi-aromatic copolyimide and a preparation method therefor, a composition, and a molded article. The monomer raw materials of the high-temperature-resistant semi-aromatic copolyimide of the present invention comprise a diacid monomer and a diamine monomer; the diacid monomer includes, but is not limited to, an aromatic dibasic acid and/or a derivative thereof, and an aliphatic dibasic acid; the diamine monomer includes, but is not limited to, decamethylene diamine and pentamethylene diamine, and the molar ratio of decamethylene diamine to pentamethylene diamine is (1-30):1. The high-temperature-resistant semi-aromatic copolyimide provided by the present invention has excellent heat resistance and mechanical strength, low water absorption, dimensional stability, and a low yellowness index. In the present invention, copolyamide PA10T/5T/5X/10X is prepared by taking water as a reaction medium by means of one-step process, and has the advantages of environmental friendliness, simpleness and convenience in operation, low cost, high production efficiency and the like.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
The present disclosure provides a polyamide 5X staple fiber, a preparation method and use thereof. The polyamide 5X staple fiber has a denier of 8.0-30.0D, a breaking strength of 2.0-6.0 cN/dtex, and an elongation at break of 30-100%. The polyamide 5X staple fiber has good mechanical properties and softness, and a blended wool yarn for manufacturing carpets with good mechanical properties, dyeability, and wear resistance can be obtained by using the polyamide 5X staple fiber.
D02G 3/04 - Fils provenant de mélange ou autres filés ou fils contenant des composants faits de matières différentes
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
252426244CO-; a mole fraction ratio of the segment A) to the segment B) is (95:5)-(5:95), and a terminal amino group content of the copolyamide resin is 30-80 mmol/kg. The copolyamide resin of the present invention has advantages such as moderate viscosity, moisture content and terminal amino group content, low oligomer content, high molecular weight and narrow molecular weight distribution, and can meet requirements for use in the spinning field. Fibers obtained by spinning have excellent overall properties.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
D01F 6/80 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits de copolycondensation à partir de copolyamides
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
The present invention provides a polyamide resin and a preparation method therefor, a composition, and a fiber product. The structural unit of the polyamide comprises a diamine structural unit and a diacid structural unit, wherein 90 mol% or more of the diacid structural unit is derived from adipic acid, 90 mol% or more of the diamine structural unit is derived from 1,5-pentanediamine, and the content of a water-extractable substance in the polyamide resin is 0.7 wt% or less. The number average molecular weight of the water-extractable substance is 2000 or less. The preparation method of the polyamide resin of the present invention is simple, the process parameters thereof are easy to control, and the assistance of large-scale instruments is not needed, thereby facilitating mass production thereof. The polyamide resin of the present invention has a long component wiping spinneret period and less broken filament times, and the obtained fiber has less broken filaments, a low uneveness of yarn levelness, less dyed dark grain, a good dyeing effect, and an excellent elongation at break and breaking strength and a lower boiling water shrinkage. The spinning and dyeing yield is high.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
30.
POLYAMIDE SEA-ISLAND FIBER, PREPARATION METHOD THEREFOR, AND USE THEREOF
The present invention relates to the technical field of polyamide materials, and specifically relates to a polyamide sea-island fiber and a process for producing the same and the use thereof. In the polyamide sea-island fiber, the island component is a polyamide resin selected from one of polyamide 56, polyamide 510, polyamide 511, polyamide 512, polyamide 513, polyamide 514, polyamide 515 and polyamide 516, preferably polyamide 56 or polyamide 510; the sea component is one of polyethylene, low-density polyethylene, polystyrene, water-soluble polyesters, polyesters and polyurethanes, preferably polyethylene, low-density polyethylene or water-soluble polyester. The polyamide sea-island fiber of the present invention has better mechanical properties, better softness, good dyeing properties, high grade of dyeing grey scale, high dye uptake, high dyeing depth and high color fastness.
D01F 8/12 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins un polyamide comme constituant
D01F 8/14 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins un polyester comme constituant
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
D01F 8/06 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins une polyoléfine comme constituant
31.
CONTINUOUS LONG FIBER-REINFORCED THERMOPLASTIC COMPOSITE BOARD, AND PREPARATION METHOD THEREFOR AND USE THEREOF
SHANXI SYNTHETIC BIOLOGY INSTITUTE CO., LTD. (Chine)
Inventeur(s)
Li, Yuanping
Xu, Qiang
Guan, Bing
Liu, Xiucai
Abrégé
A continuous long fiber-reinforced thermoplastic composite board, and a preparation method therefor and an application thereof. The continuous long fiber-reinforced thermoplastic composite board comprises m layers of prepreg tapes A and n layers of prepreg tapes B, and the prepreg tapes A are arranged on the outer layer, wherein m≥2, n≥1, and m and n are integers; the prepreg tapes A are continuous long fiber-reinforced long carbon chain polyamide resin unidirectional prepreg tapes that comprise continuous long fibers and long carbon chain polyamide resins; and the prepreg tapes B are continuous long fiber-reinforced short carbon chain polyamide resin unidirectional prepreg tapes that comprise continuous long fibers and short carbon chain polyamide resins. The composite board has the advantages of being low in water absorption, excellent in mechanical properties, smooth in appearance, reliable in performance and practical; moreover, the preparation process is simple, the time consumed is short, the production efficiency is high, and the cost is low.
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
B32B 5/12 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments caractérisés par la disposition relative des fibres ou filaments des couches adjacentes
B32B 37/10 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par la technique de pressage, p. ex. faisant usage de l'action directe du vide ou d'un fluide sous pression
C08L 77/00 - Compositions contenant des polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
32.
POLYAMIDE 5X INDUSTRIAL YARN, PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed in the present invention is a polyamide 5X industrial yarn. The polyamide 5X industrial yarn has a heat-resistant break strength retention rate of 90% or more after being treated at 180° C. for 4 hrs; a heat-resistant break strength retention rate of 90% or more after being treated at 230° C. for 30 mins; and a dry heat shrinkage of 8.0% or less. The polyamide 5X industrial yarn is widely used in the fields of sewing threads, tire cords, air bag yarns, release cloth, krama, canvas, safety belts, ropes, fishing nets, industrial filter cloth, conveyor belts, parachutes, tents, bags and suitcases.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D01D 5/088 - Refroidissement des filaments, fils ou similaires, à la sortie des filières
D01D 5/16 - Méthodes de filage par étirage utilisant des rouleaux, ou dispositifs mécaniques similaires, p. ex. dispositifs à doigts de friction
C08G 69/32 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques à partir de diamines aromatiques et d'acides aromatiques dicarboxyliques avec des groupes amino et carboxylique liés tous deux aromatiquement
C08K 5/098 - Sels métalliques d'acides carboxyliques
The present invention relates to a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain, to the preparation of a long-chain dibasic acid producing strain by directed evolution of POX gene and homologous recombination, and to the production of a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain by using the strain. The present invention also relates to a strain containing a mutated promoter, wherein, when a long-chain dibasic acid is produced by fermentation of this strain, the content of the acid impurity of shorter carbon chain in the fermentation product is significantly reduced.
The present disclosure provides methods for isolating a long chain dicarboxylic acid such as a substantially pure or pure long chain dicarboxylic acid from a fermentation broth containing microbial cells.
SHANXI SYNTHETIC BIOLOGY INSTITUTE CO., LTD. (Chine)
Inventeur(s)
Li, Yuanping
Guan, Bing
Liu, Xiucai
Abrégé
Disclosed are a long-carbon-chain polyamide resin composition and a continuous fiber reinforced long-carbon-chain polyamide composite material. The long-carbon-chain polyamide resin composition comprises the following components in parts by weight: 81.8-99.8 parts of long-carbon-chain bio-based polyamide 5X resin, 0.2-1.6 parts of an antioxidant, 0-0.8 parts of a lubricant, 0-15 parts of a compatibilizer, and 0-0.8 parts of a coupling agent. The continuous fiber reinforced long-carbon-chain polyamide composite material prepared on the basis of the long-carbon-chain polyamide resin composition has high fiber content and good mechanical properties, is recyclable and can be used in fields of aerospace, military, automotive materials, sports equipment, building materials, electronic appliances, etc.
SHANXI SYNTHETIC BIOLOGY INSTITUTE CO., LTD. (Chine)
Inventeur(s)
Li, Yuanping
Guan, Bing
Liu, Xiucai
Abrégé
Disclosed are a polyamide 56 resin composition, a continuous fiber reinforced polyamide 56 composite material, a preparation method therefor and a use thereof. The polyamide 56 resin composition comprises the following components in parts by weight: 81.8-99.8 parts of a bio-based polyamide 56 resin, 0.2-1.6 parts of an antioxidant, 0-0.8 parts of a lubricant, 0-15 parts of a compatibilizer, and 0-0.8 parts of a coupling agent. The continuous fiber reinforced polyamide 56 composite material comprises the polyamide 56 resin composition and fibers, wherein the mass percentage of the fibers in the continuous fiber reinforced polyamide 56 composite material is 40%-75%. The continuous fiber reinforced polyamide 56 composite material of the present invention has a high fiber content, good mechanical properties, and is recyclable; in addition, the composite material can be applied to the fields of aerospace, military, automotive materials, sports equipment, building materials, electronic appliances, and other fields.
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
C08L 51/06 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des homopolymères ou des copolymères d'hydrocarbures aliphatiques ne contenant qu'une seule liaison double carbone-carbone
C08L 77/02 - Polyamides dérivés des acides oméga-aminocarboxyliques ou de leurs lactames
C08K 9/06 - Ingrédients traités par des substances organiques par des composés contenant du silicium
Shanxi Synthetic Biology Institute Co., Ltd. (Chine)
Inventeur(s)
Zhao, Yuanbo
Qin, Bingbing
Liu, Xiucai
Abrégé
The present invention provides a process for producing a high temperature resistant polyamide, the high temperature resistant polyamide and the use thereof. The process comprises: optionally concentrating a polyamide salt solution, and then conducting the following operations: heating and pressurizing to a pressure of P1, and maintaining the pressure, wherein the temperature of the system is T1 at the end of the pressure-maintenance; depressurizing to a pressure of P2, wherein the temperature of the system is T2 at the end of the depressurization; and evacuating, whereby a polyamide melt is obtained; wherein P1 is 0.8-4 MPa, T1 is 250-290° C., T1
The present invention relates to the technical field of polyamide materials, and provides a polyamide 56 pre-oriented yarn and a polyamide 56 draw textured yarn with a low shrinkage in boiling water, a process for producing the same and a use thereof. The raw materials for producing the polyamide 56 fiber comprise 1,5-pentane diamine and adipic acid, or a polyamide 56 resin obtained by polymerizing 1,5-pentane diamine monomer and adipic acid monomer; wherein the polyamide 56 fiber has a shrinkage in boiling water of 9% or less, wherein the polyamide 56 fiber comprises a polyamide 56 pre-oriented yarn with a low shrinkage in boiling water and a polyamide 56 draw textured yarn with a low shrinkage in boiling water. The polyamide 56 fiber has good mechanical properties, dyeing uniformity and dimensional stability. The process for producing the polyamide 56 fiber does not require modification to existing equipments for texturing polyamide fibers and thus reduces production costs.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D02G 1/20 - Combinaisons de plusieurs des opérations ou des appareillages mentionnés ci-dessusTraitements ultérieurs pour fixer la frisure ou l’ondulation
D01D 5/092 - Refroidissement des filaments, fils ou similaires, à la sortie des filières dans des cheminées
39.
FLAME-RETARDANT POLYAMIDE GLASS FIBER COMPOSITION AND PREPARATION METHOD THEREFOR
SHANXI SYNTHETIC BIOLOGY INSTITUTE CO., LTD. (Chine)
CATHAY (TAIYUAN) BIOMATERIAL CO., LTD. (Chine)
Inventeur(s)
Li, Yuanping
Guan, Bing
Liu, Xiucai
Abrégé
Provided are a flame-retardant polyamide glass fiber composition and a preparation method therefor. The flame-retardant polyamide glass fiber composition comprises, in parts by weight: 40-65 parts of a polyamide resin, 25-40 parts of glass fibers, 0-20 parts of a flame retardant, 0.2-1 part of an antioxidant, and 0.1-2 parts of other auxiliaries. The flame-retardant polyamide glass fiber composition provided in the present invention not only has a bio-based source, but also has a flame retardance of V-0 in UL94 and excellent mechanical properties, and can be widely applied to the fields of various engineering plastics with high requirements for flame retardant effect and dimensional stability.
SHANXI SYNTHETIC BIOLOGY INSTITUTE CO., LTD. (Chine)
Inventeur(s)
Zhao, Yuanbo
Qin, Bingbing
Liu, Xiucai
Abrégé
The present invention provides a method for producing a high temperature resistant polyamide, a high temperature resistant polyamide and an application thereof. The method comprises, after the polyamide salt solution is processed with or without a concentration treatment, performing the following operations: heating, pressurizing to reach P1, holding pressure, and reaching a system temperature of T1 at the end of the pressure holding; depressurizing to reach P2, and reaching a system temperature of T2 at the end of the depressurization; and vacuumizing. P1 is 0.8-4 mm, T1 is 250-290°C, T1 < T2 and (T2 − T1)/(P1 − P2) = 5-75. The method for preparing the high temperature resistant polyamide is easy to operate, and the waste of energy consumption is reduced. The thereby obtained high temperature resistant polyamide may be used as a raw material for injection molding parts, molded products or fibers, and suitable for high temperature resistant parts used in machines, automobiles, household devices, toys, fabrics, sports articles, mobile phones, computers, portable computers, GPS devices, or optical devices.
The present disclosure provides a method for extracting long chain dicarboxylic acid, the method comprising: (1) subjecting a long chain dicarboxylic acid fermentation broth to a primary membrane filtration treatment to give a first filtrate; subjecting the first filtrate to decolorization, crystallization, and solid-liquid separation to give a first solid; (2) redissolving the first solid in water to form a solution; subjecting the solution to decolorization, crystallization by acidification, and solid-liquid separation to give a second solid. By the method, the resulted long chain dicarboxylic acid product has a high purity and no residual organic solvent.
a primary membrane filtration unit, a first crystallization unit, a first separation unit, a first dissolution tank, a secondary membrane filtration unit, a second separation unit, a second crystallization unit and a third separation unit. By the system for extracting long chain dicarboxylic acid of an embodiment of the present invention, the resulted long chain dicarboxylic acid product has a high purity, very low and even no residual alkane residue, and organic solvent-free.
The present disclosure provides a system for refining long chain dicarboxylic acid, comprising: a first membrane filtration unit, for a first membrane filtration of a long chain dicarboxylic acid fermentation broth or a treated liquid therefrom; a first decolorization unit, for carrying out a first decolorization treatment to the filtrate obtained after the membrane filtration; a first acidification/crystallization unit, for carrying out a first acidification/crystallization of a filtrate obtained after the membrane filtration to give a solid-liquid mixture; a first separation unit, for a solid-liquid separation of the solid-liquid mixture; a drying unit, for drying the solid separated by the separation unit to give a first solid. By using the refining system according to the present disclosure, the purity of the obtained product is high, and the disadvantages such as poor quality of the product obtained by crystallization from a solvent and environment pollution caused by a solvent can be overcome.
B01D 25/12 - Filtres-presses, c.-à-d. du type à plaque ou du type à plaque et cadre
B01D 29/00 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants
B01D 36/00 - Circuits ou combinaisons de filtres avec d'autres dispositifs de séparation
B01D 61/36 - PervaporationDistillation à membranesPerméation liquide
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
44.
Directed evolution of CYP52A12 gene and its use in dicarboxylic acid production
The invention is directed to a method of preparing a long chain dicarboxylic acid producing strain by using directed evolution and homologous recombination, a strain obtained by this method that is capable of producing a long chain dicarboxylic acid under an acidic condition and the use of the strain. In particular, the invention is directed to a method of preparing a long chain dicarboxylic acid producing strain by using directed evolution of CYP52A12 gene and homologous recombination, a strain obtained by this method that is capable of producing a long chain dicarboxylic acid under an acidic condition and the use of the strain.
Disclosed are an industrial polyamide yarn, a preparation method therefor, and the use thereof. The raw materials for producing the industrial polyamide yarn include at least 1,5-pentanediamine and a linear aliphatic diacid; or polyamide 5X obtained by the polymerization of 1,5-pentanediamine and a linear aliphatic diacid as monomers. The industrial polyamide yarn has the characteristics of a low water absorption, a good dimensional stability, a high fracture strength, and a good heat resistance.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01F 6/90 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyamides
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
A polyamide 5X staple fiber, a preparation method therefor, and use thereof. The polyamide 5X staple fiber has a denier of 8.0-30.0D, a breaking strength of 2.0-6.0 cN/dtex, and an elongation at break of 30-100%. The polyamide 5X staple fiber has good mechanical properties and softness, and blended wool yarn used for manufacturing carpets and having good mechanical properties, dyeing properties, and abrasion resistance can be obtained by using the polyamide 5X staple fiber.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D06P 1/39 - Procédés généraux de teinture ou d'impression des textiles ou procédés généraux de teinture du cuir, des fourrures ou des substances macromoléculaires solides de toutes formes, classés selon les teintures, les pigments ou les substances auxiliaires utilisés utilisant des colorants acides
D06P 3/852 - Textiles contenant différentes sortes de fibres teints par un seul colorant contenant un mélange mi-laine ou cellulose-polyamide
47.
POLYAMIDE 5X FIBER, PREPARATION METHOD THEREFOR, AND USE THEREOF
The present application discloses a polyamide 5X fiber, the raw materials for producing same at least include: 1,5-pentanediamine and long-carbon-chain dibasic acid; alternatively, a polyamide 5X obtained by polymerization of 1,5-pentanediamine and long-carbon-chain dibasic acid as monomers. The 1,5-pentanediamine or the long-carbon-chain dibasic acid is prepared by a bio-based raw material by means of a fermentation method or an enzymatic conversion method, and the long-carbon-chain dibasic acid is at least one of aliphatic long-carbon-chain dibasic acid of C6-20. The polyamide 5X fiber includes pre-oriented yarn, textured yarn, fully drawn yarn, a staple fiber, industrial yarn, and bulked continuous filaments and monofilaments, preferably pre-oriented yarn, textured yarn, and fully drawn yarn. The used production raw materials of the polyamide 5X resin are made by means of a biological method and are green materials. The polyamide 5X fiber has good mechanical properties, dimensional stability, softness, quick-drying performance, and dyeing properties.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
D01D 5/08 - Méthodes de filage à partir de masses en fusion
48.
Method and system for extracting long chain dicarboxylic acid
The present disclosure provides a method and a system for extracting long chain dicarboxylic acid, the method comprising: (1) subjecting a long chain dicarboxylic acid fermentation broth to a primary membrane filtration treatment to give a first filtrate; subjecting the first filtrate to decolorization, acidification/crystallization, and solid-liquid separation treatments to give a first solid; (2) mixing the first solid, a base and water to form a solution; subjecting the solution to a secondary membrane filtration treatment to give a second filtrate; subjecting the second filtrate to decolorization, acidification/crystallization, and solid-liquid separation treatments to give a second solid; and (3) mixing the second solid and water to form a mixture; subjecting the mixture to a thermostatic treatment at 105-150° C., followed by cooling for crystallization and solid-liquid separation treatment. By the method, the resulted long chain dicarboxylic acid product has a high purity and no residual organic solvent.
The present disclosure provides a method and a system for refining long chain dicarboxylic acid, said method comprising the following steps: (1) subjecting a long chain dicarboxylic acid fermentation broth or a treated liquid therefrom to a membrane filtration, an acidification/crystallization, a solid-liquid separation and drying to give a long chain dicarboxylic acid crude product; (2) subjecting the long chain dicarboxylic acid crude product to a vacuum distillation to give the long chain dicarboxylic acid product; wherein the pressure in the vacuum distillation is ≤100 Pa. By using the refining method according to the present disclosure, the procedure is simplified, and the purity of the obtained product is high, and the disadvantages such as poor quality of the product obtained by crystallization from a solvent and environment pollution caused by a solvent can be overcome.
The invention relates to the directed evolution of CYP52A12 gene and the use thereof for the production of a dicarboxylic acid. In particular, it relates to a method of preparing a long chain dicarboxylic acid producing strain by using directed evolution and homologous recombination, a strain obtained by the method that is capable of producing a long chain dicarboxylic acid under an acidic condition and the use thereof. In particular, the invention relates to a method of preparing a long chain dicarboxylic acid producing strain by directed evolution of CYP52A12 gene and homologous recombination, a strain obtained by the method that is capable of producing a long chain dicarboxylic acid under an acidic condition and the use thereof. By directed evolution of CYP52A12 gene, one strain which has a base mutation at the promoter region of said gene and is capable of producing a long chain dicarboxylic acid under an acidic condition in a shortened fermentation time is screened out in the invention.
C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
C12N 15/00 - Techniques de mutation ou génie génétiqueADN ou ARN concernant le génie génétique, vecteurs, p. ex. plasmides, ou leur isolement, leur préparation ou leur purificationUtilisation d'hôtes pour ceux-ci
C12N 15/52 - Gènes codant pour des enzymes ou des proenzymes
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
51.
Reducing the accumulation of imines/enamines for the production of amino acids or amino acid-derived products
Provided microorganisms genetically modified to overexpress an imine/enamine deaminase to enhance the production of lysine and lysine derivatives by the microorganism. Also provided a method of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
The invention provides CadA polypeptides with mutations that increase activity in alkaline pH compared to the wild-type lysine decarboxylase. The invention also provides methods of generating such mutant polypeptides, microorganisms genetically modified to overexpress the mutant polypeptides, and methods of generating such microorganism.
C12P 13/00 - Préparation de composés organiques contenant de l'azote
C12N 15/70 - Vecteurs ou systèmes d'expression spécialement adaptés à E. coli
C12N 15/77 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes procaryotes autres que E. coli, p. ex. Lactobacillus, Micromonospora pour CorynebacteriumVecteurs ou systèmes d'expression spécialement adaptés aux hôtes procaryotes autres que E. coli, p. ex. Lactobacillus, Micromonospora pour Brevibacterium
53.
POLYAMIDE 5X INDUSTRIAL YARN, PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed in the present invention is a polyamide 5X industrial yarn. The described polyamide 5X industrial yarn has a heat-resistant breaking strength retention rate of ≥ 90% after being treated at 180°C for 4 h; the heat-resistant breaking strength retention rate is ≥ 90% after being treated at 230°C for 30 min; and a dry heat shrinkage rate is ≤ 8.0%. The described polyamide 5X industrial yarn is widely used in the fields of sewing threads, tire cords, air bag yarns, release cloth, krama, canvas, safety belts, ropes, fishing nets, industrial filter cloth, conveyor belts, parachutes, tents, bags and suitcases.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01F 1/10 - Autres agents modifiant les propriétés de ces filaments
54.
POLYAMIDE SEA-ISLAND FIBER, PREPARATION METHOD THEREFOR, AND USE THEREOF
The present invention relates to the technical field of polyamide materials, and specifically relates to a polyamide sea-island fiber, a preparation method therefor, and the use thereof. In the polyamide sea-island fibers, the island component is a polyamide fiber selected from one of polyamide 56, polyamide 510, polyamide 511, polyamide 512, polyamide 513, polyamide 514, polyamide 515 and polyamide 516, preferably polyamide 56 and polyamide 510; and the sea component is one of polyethylene, low-density polyethylene, polystyrene, a water-soluble polyester, a polyester and polyurethane, preferably polyethylene, low-density polyethylene, or a water-soluble polyester. The polyamide sea-island fibers of the present invention have better mechanical properties and better soft properties, and also have good dyeing properties, a high dyeing gray card level, a high dye-uptake, deep dyeing and a high color-fastness.
D01F 8/12 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins un polyamide comme constituant
D01F 8/14 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins un polyester comme constituant
D01F 8/06 - Filaments, ou similaires, faits par l’homme, conjugués, c.-à-d. à plusieurs composantsLeur fabrication à partir de polymères synthétiques avec au moins une polyoléfine comme constituant
D01D 5/00 - Formation des filaments, fils ou similaires
55.
STRAIN FOR PRODUCING LONG-CHAIN DICARBOXYLIC ACIDS AND FERMENTATION METHOD THEREFOR
Provided are a Candida tropicalis strain Am2525, with the preservation number thereof being CCTCC NO: M 2019419, and a method for producing long-chain dicarboxylic acids by means of fermenting the strain. The method for producing the long-chain dicarboxylic acids comprises preparing a seed solution by means of the Candida tropicalis strain Am2525 and producing the long-chain dicarboxylic acids via fermentation of the seed solution. Compared with the parent, the Candida tropicalis strain Am2525 has an enhanced resistance to the toxicity of a substrate decane, improves the productivity of long-chain dicarboxylic acids, reduces the cost of production, subsequent separation and purification are simple, and the fermentation production process is easy to implement on a large scale.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
The invention provides microorganisms genetically modified to overexpress biofilm dispersal related polypeptides to enhance the production of lysine and lysine derivatives by the microorganism, method of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
The present invention relates to the technical field of polyamide materials, and provides polyamide 56 pre-oriented yarn and textured yarn with a low boiling water shrinkage rate, a preparation method therefor, and an application thereof. The raw materials for the production of the polyamide 56 fibre comprise 1,5-pentanediamine and adipic acid or polyamide resin 56 obtained by polymerising 1,5-pentanediamine and adipic acid monomers; the boiling water shrinkage rate of the polyamide 56 fibre is below 9%, and the polyamide 56 fibre contains polyamide 56 pre-oriented yarn with a low boiling water shrinkage rate and polyamide 56 textured yarn with a low boiling water shrinkage rate. The polyamide 56 fibre has good mechanical properties, uniform dyeing properties, and dimensional stability, and the preparation method for the polyamide 56 fibre does not require the modification of existing polyamide fibre texturing devices, reducing production costs.
D01F 6/60 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyamides
D01F 6/90 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyamides
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
The present invention provides a decanedioic acid produced by microbial fermentation process, in which the content of C10 aliphatic acid and C10 hydroxy aliphatic acid is maintained at a very low level. The present invention also provides a preparation method of the decanedioic acid and a polymer prepared by using the decanedioic acid as monomer. The decanedioic acid provided by the present invention is prepared by microbial fermentation process. The decanedioic acid product which is produced through the processes of microbial fermentation and separation has a higher purity, a higher thermal stability, and a lower impurity content. The decanedioic acid provided by the present invention could satisfy the requirements of high grade product of polyamide or polyester to produce polymer with excellent qualities. The preparation method of the decanedioic acid provided by the present invention which has many advantages of mild reaction conditions, environmental friendliness, high yield, and good product quality, may replace the chemical method to be used in industrial scale production of the decanedioic acid.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
The present disclosure provides method for isolating a long chain dicarboxylic acid such as a substantially pure or pure long chain dicarboxylic acid from a fermentation broth containing microbial cells.
The invention provides microorganisms genetically modified to co-overexpress a carbohydrate binding module and lysine decarboxylase polypeptides in a mesophilic host to enhance the production of lysine derivatives by the microorganism, method of generating such microorganism, and methods of producing lysine derivatives using the genetically modified microorganisms.
The invention relates to a long-chain dibasic acid with low content of monobasic acid impurity and a production method thereof, in particular to the preparation of a long-chain dibasic acid producing strain by means of directed evolution and homologous recombination, and to the production of a long-chain dibasic acid with low content of monobasic acid impurity by fermentation of said strain. The invention relates to a mutated CYP52A12 gene, homologous gene or variant thereof, which, relative to GenBank Accession Number AY230498 and taking the first base upstream of the start codon ATG as −1, comprises a mutation. The invention relates to a strain comprising said mutated CYP52A12 gene, homologous gene or variant thereof wherein when the strain is fermented to produce a long-chain dibasic acid, the content of monobasic acid impurity in the fermentation product is significantly reduced.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
The invention provides CadA polypeptides with mutations that increase activity in alkaline pH compared to the wild-type lysine decarboxylase. The invention also provides methods of generating such mutant polypeptides, microorganisms genetically modified to overexpress the mutant polypeptides, and methods of generating such microorganism.
The invention provides microorganisms genetically modified to overexpress thermophilic lysine decarboxylase polypeptides in a mesophilic host to enhance the production of lysine and lysine derivatives by the microorganism, method of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
K. oxytoca ldc). In certain embodiments, the DNA polynucleotide as disclosed herein may encode one or more lysine decarboxylase polypeptides provided herein. In certain embodiments, the DNA polynucleotide as disclosed herein may encode SEQ ID NO: 2, mutants, and/or fragments thereof. In certain embodiments, the lysine decarboxylase nucleotide sequences provided herein may have at least 95% sequence identity with SEQ ID NO: 1 or SEQ ID NO: 3. Another aspect provided herein relates to expression vectors comprising the DNA polynucleotides described herein used for production of a lysine-derived product. Other aspects provided herein include transformants, mutant host cells, methods for the production of lysine decarboxylases, and methods for the production of a lysine-derived product.
Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
23 - Fils à usage textile
24 - Tissus et produits textiles
35 - Publicité; Affaires commerciales
Produits et services
Straight chain dicarboxylic acid; straight chain
dicarboxylic acid having 9 to 18 carbon atoms; dicarboxylic
acid; nonanedioic acid; sebacic acid; undecanedioic acid;
dodecanedioic acid; tridecanedioic acid; tetradecanedioic
acid; pentadecanedioic acid; hexadecanedioic acid;
heptadecanedioic acid; octadecanedioic acid;
9-octadecenedioic acid; and the mixture of the
above-mentioned acids; artificial resins, unprocessed;
chemicals for industrial purposes; chemicals for use in
industry and science; fire retardant chemicals; industrial
chemicals; ion-exchange resins; plasticizers for plastics;
polymer resins, unprocessed; synthetic resins, unprocessed;
textile-waterproofing chemicals; unprocessed artificial
resins as raw materials in the form of powders, liquids or
pastes; unprocessed artificial resins, unprocessed plastics;
unprocessed plastics in the nature of filtering materials in
chemical industry. Artificial resins, semi-processed; electrical insulating
materials; film used as an industrial or commercial packing;
flexible hoses, not of metal; insulating refractory
materials; non-metal junctions for pipes; plastic film for
packing, cushioning, or stuffing purposes; plastic material
in extruded form for use in production; artificial resins in
the form of bars, blocks, pellets, rods, sheets and tubes
for general industrial use; sealing and insulating
materials; semi-finished injection molded products of
plastic for use in a variety of industries; semi-processed
plastic in the form of films, sheets, tubes, bars, or rods;
semi-processed plastics; semi-worked synthetic plastic and
synthetic resins as semi-finished products in form of
pellets, rods, foils, foams, fibers, films and sheets;
soundproofing materials; strapping tape; stuffing of rubber
or plastics; synthetic resins, semi-processed; washers of
rubber or vulcanized fibre; weatherstripping for use in
automobiles and homes. Chemical fiber bags for industrial use; chemical fiber
nettings; chemical fibers for textile use; netting; nylon
fibers for textile use; nylon strapping or tie downs;
packaging bags of textile material; plastic fibres for
textile use; raw textile fibers; semi-synthetic fibers;
storage bags for industrial use; synthetic fibers and
filaments for use in the manufacture of fabrics, textiles,
yarns and carpets; synthetic fibres for textile use;
tarpaulins; textile bags for merchandise packaging; textile
fibres; textile filaments; vehicle covers, not fitted;
wrapping or binding bands, not of metal; yarn fibers. Chemical fiber base mixed thread and yarn; chemical-fiber
threads and yarns for textile use; elastic thread and yarn
for textile use; elastic threads for textile use; elastic
yarns for textile use; heat-stable yarns and threads; mixed
spun threads and yarns; plastic thread for textile use;
rayon thread and yarn; rayon yarn; spun thread; spun thread
and yarn; synthetic fiber thread and yarn; threads for
textile use; yarn; yarns and threads for textile use. Cashmere blankets; fabrics for textile use; felts;
tapestries of textile; textile fabrics for the manufacture
of clothing; textile labels; textile wall hangings; woollen
blankets; woven fabrics of nylon for textile use. Administrative processing of purchase orders; advertisement
and publicity services by television, radio, mail;
advertisement and publicity services by television, internet
radio or mail; advertising and marketing; demonstration of
products; distribution of advertisements and commercial
announcements; online advertising and promotional services;
online advertising via a computer communications network;
organisation of exhibitions and events for commercial or
advertising purposes; organisation of exhibitions and trade
fairs for business and promotional purposes; organisation of
exhibitions for commercial or advertising purposes;
organising exhibitions for commercial or advertising
purposes; organization of events, exhibitions, fairs and
shows for commercial, promotional and advertising purposes;
organization of exhibitions for commercial or advertising
purposes; organization of fairs and exhibitions for
commercial and advertising purposes; preparing and placing
of advertisements; promotion, advertising and marketing of
on-line websites.
67.
Long-chain dibasic acid with low content of monobasic acid impurity and the production method thereof
The invention relates to a long-chain dibasic acid with low content of monobasic acid impurity and a production method thereof, in particular to the preparation of a long-chain dibasic acid producing strain by means of directed evolution and homologous recombination, and to the production of a long-chain dibasic acid with low content of monobasic acid impurity by fermentation of said strain. The invention relates to a mutated CYP52A12 gene, homologous gene or variant thereof, which, relative to GenBank Accession Number AY230498 and taking the first base upstream of the start codon ATG as −1, comprises a mutation. The invention relates to a strain comprising said mutated CYP52A12 gene, homologous gene or variant thereof wherein when the strain is fermented to produce a long-chain dibasic acid, the content of monobasic acid impurity in the fermentation product is significantly reduced.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
68.
Long-chain dibasic acid with low content of hydroxyl acid impurity and production method thereof
The present invention relates to a long-chain dibasic acid with low content of hydroxyl acid impurity and a production method thereof, in particular to a method for producing a long-chain dibasic acid with low content of hydroxyl acid impurity by fermenting a long-chain dibasic acid producing strain prepared by homologous recombination method. The present invention relates to a recombinant long-chain dibasic acid producing microorganism, having increased alcohol dehydrogenase activity and optionally decreased acyl-CoA oxidase activity. The present invention also relates to a method of producing a long-chain dibasic acid by the recombinant long-chain dibasic acid producing microorganism and use thereof.
C12N 15/90 - Introduction stable d'ADN étranger dans le chromosome
C12N 9/04 - Oxydoréductases (1.), p. ex. luciférase agissant sur des groupes CHOH comme donneurs, p. ex. oxydase de glucose, déshydrogénase lactique (1.1)
The present invention relates to a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain, to the preparation of a long-chain dibasic acid producing strain by directed evolution of POX gene and homologous recombination, and to the production of a long-chain dibasic acid with low content of long-chain dibasic acid impurity of shorter carbon chain by using the strain. The present invention also relates to a strain containing a mutated promoter, wherein, when a long-chain dibasic acid is produced by fermentation of this strain, the content of the acid impurity of shorter carbon chain in the fermentation product is significantly reduced.
Escherichia coli tetracycline efflux pump A (TetA). Another aspect of the invention relates to a polynucleotide encoding a polypeptide of TetA, a fragment thereof, or a mutant thereof. Another aspect of the invention relates to a first expression plasmid vector comprising one or more first polynucleotides encoding a first polypeptide comprising a tetracycline efflux pump polypeptide, a fragment thereof or a mutant thereof, one or more second polynucleotides independently selected from the group consisting of a third polynucleotide encoding a third polypeptide comprising a lysine decarboxylase polypeptide, a fragment thereof or a mutant thereof, and a fourth polynucleotide encoding a fourth polypeptide comprising a lysine biosynthesis polypeptide, a fragment thereof or a mutant thereof. Another aspect of the invention relates to a transformant comprising one or more expression plasmid vectors as described herein in a host cell. Another aspect of the invention relates to a mutant host cell comprising one or more first, third or fourth polynucleotides as described herein integrated into a chromosome of a host cell. Another aspect of the invention relates to a method for producing a lysine comprising obtaining a transformant and/or mutant host cell as disclosed herein, culturing the transformant and/or mutant host cell under conditions effective for the expression of the lysine; and harvesting the lysine. Other aspects of the invention relate to methods for producing biobased cadaverine using the transformants disclosed herein, and biobased cadaverine prepared by the method disclosed herein, and polyamides formed using the biobased cadaverine as disclosed herein and compositions thereof.
C07K 14/35 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de bactéries provenant de Mycobacteriaceae (F)
C07K 14/36 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de bactéries provenant d'ActinomycesPeptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de bactéries provenant de Streptomyces (G)
C12N 15/70 - Vecteurs ou systèmes d'expression spécialement adaptés à E. coli
C12N 15/77 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes procaryotes autres que E. coli, p. ex. Lactobacillus, Micromonospora pour CorynebacteriumVecteurs ou systèmes d'expression spécialement adaptés aux hôtes procaryotes autres que E. coli, p. ex. Lactobacillus, Micromonospora pour Brevibacterium
C12P 13/00 - Préparation de composés organiques contenant de l'azote
71.
Lysine decarboxylases having modifications at titratable amino acids
The invention provides CadA polypeptides with mutations that increase activity in alkaline pH compared to the wild-type lysine decarboxylase. The invention also provides methods of generating such mutant polypeptides, microorganisms genetically modified to overexpress the mutant polypeptides, and methods of generating such microorganisms.
The present invention discloses a method for producing a long chain dicarboxylic acid by fermentation as well as a fermentation broth, a treated fermentation broth and a wastewater. The salt content in the fermentation broth is controlled to be below 20% by the fermentation method of the present invention. The method for producing a long chain dicarboxylic acid by fermentation provided by the present invention can effectively reduce the amount of alkali used in the fermentation process and the amount of acid used in the subsequent extraction of the long chain dicarboxylic acid, thereby reducing the amount of salt in the whole production process of the long chain dicarboxylic acid. At the same time, the method of the present invention also has many advantages such as shortening the fermentation time, increasing the acid production, reducing the amount of medium, and suitable for the production of various types of long-chain dicarboxylic acids, etc. Compared with the existing production process, the method of the present invention not only has significant cost advantages, but also can effectively reduce the pressure on resource and environment, thus it has a very obvious value advantage in industrialization.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
The present disclosure provides a method for isolating a long chain dicarboxylic acid from fermentation broth containing microbial cells. Also provided is a substantially pure long chain dicarboxylic acid isolated by the method.
C07C 55/21 - Acides dicarboxyliques contenant douze atomes de carbone
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
C07C 51/02 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides à partir de sels d'acides carboxyliques
C07C 51/347 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par des réactions ne créant pas de groupes carboxyle
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
Artificial resins, unprocessed; Chemicals for industrial purposes; Chemicals for use in industry and science; Fire retardant chemicals; Industrial chemicals; Ion-exchange resins; Plasticizers for plastics; Polymer resins, unprocessed; Synthetic resins, unprocessed; Textile-waterproofing chemicals; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; Unprocessed artificial resins, unprocessed plastics; Unprocessed plastics in the nature of filtering materials in the chemical industry Artificial resins, semi-processed; Electrical insulating materials; Film used as an industrial or commercial packing; Flexible hoses, not of metal; Insulating refractory materials; Non-metal junctions for pipes; Plastic film for packing, cushioning, or stuffing purposes; Plastic material in extruded form for use in production; Resins in bars, blocks, pellets, rods, sheets and tubes for general industrial use; Sealing and insulating materials; Semi-finished injection molded products of plastic for use in a variety of industries; Semi-processed plastic in the form of films, sheets, tubes, bars, or rods; Semi-processed plastics; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Soundproofing materials; Strapping tape; Stuffing of rubber or plastics; Synthetic resins, semi-processed; Washers of rubber or vulcanized fibre; Weatherstripping for use in automobiles and homes Vehicle covers, not fitted
76.
REGULATION OF CSR SYSTEM FOR PRODUCTION OF LYSINE AND LYSINE-DERIVED PRODUCTS
Provided in the disclosure relates to microorganisms genetically modified to overexpress biofilm dispersal related polypeptides to enhance the production of lysine and lysine derivatives by the microorganism, method of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
C12N 15/00 - Techniques de mutation ou génie génétiqueADN ou ARN concernant le génie génétique, vecteurs, p. ex. plasmides, ou leur isolement, leur préparation ou leur purificationUtilisation d'hôtes pour ceux-ci
Provided herein is a genetically modified host cell comprising a heterologous nucleic acid encoding a biofilm dispersal polypeptide that decreases intracellular c-di-GMP levels and enhances the production of lysine and lysine derivatives. Further provided are methods of generating such cell and producing lysine and lysine derivatives using the genetically modified host cell.
Provided microorganisms genetically modified to overexpress an imine/enamine deaminase to enhance the production of lysine and lysine derivatives by the microorganism. Also provided a method of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
Provided are microorganisms genetically modified to co-overexpress a carbohydrate binding module and lysine decarboxylase polypeptides in a mesophilic host to enhance the production of lysine derivatives by the microorganism, method of generating such microorganism, and methods of producing lysine derivatives using the genetically modified microorganisms.
Provided is a method for extracting a 1,5-pentanediamine from a solution system containing a 1,5-pentanediamine salt. The method comprises adding to the solution system an insoluble basic substance to form a solution system containing free 1,5-pentanediamine. The provided method has high applicability, is easy to use, and is environmentally-friendly, significantly lowering raw material costs and operating costs for the entire manufacturing process. The method achieves a high recovery rate for pentanediamine, and is more suitable for industrial-scale production.
The present invention provides a decanedioic acid produced by microbial fermentation process, in which the content of C10 aliphatic acid and C10 hydroxy aliphatic acid is maintained at a very low level. The present invention also provides a preparation method of the decanedioic acid and a polymer prepared by using the decanedioic acid as monomer. The decanedioic acid provided by the present invention is prepared by microbial fermentation process. The decanedioic acid product which is produced through the processes of microbial fermentation and separation has a higher purity, a higher thermal stability, and a lower impurity content. The decanedioic acid provided by the present invention could satisfy the requirements of high grade product of polyamide or polyester to produce polymer with excellent qualities. The preparation method of the decanedioic acid provided by the present invention which has many advantages of mild reaction conditions, environmental friendliness, high yield, and good product quality, may replace the chemical method to be used in industrial scale production of the decanedioic acid.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
Provided are microorganisms genetically modified to overexpress porin polypeptides to enhance the production of lysine and lysine derivatives by the microorganism. Also provided are methods of generating such microorganism, and methods of producing lysine and lysine derivatives using the genetically modified microorganisms.
Provided are lysine decarboxylase polypeptides comprising mutants of SEQ ID NO: 2 and/or fragments thereof. The mutants or fragments have at least 95% sequence identity with SEQ ID NO: 2. Also provided are DNA polynucleotides encoding said lysine decarboxylases, expression vector comprising the DNA polynucleotides, transformants, mutant host cells, methods for the production of lysine decarboxylases, and methods for the production of a lysine-derived product.
The present invention relates to a method for the purification of cadaverine from an aqueous cadaverine salt composition comprising one or more involatile impurities, the method comprising: (1) mixing the aqueous cadaverine salt composition with one or more bases to provide an aqueous cadaverine composition having a pH of at least about 12; (2) distilling or evaporating the aqueous cadaverine composition to produce an aqueous cadaverine solution, wherein one or more solvents are added to the evaporation/distillation system before the evaporation/distillation stops, and the one or more solvents comprise at least one or more high boiling point (HBP) solvents having a boiling point of at least 185° C. (1 atm); and (3) subjecting the aqueous cadaverine solution to one or more rectification steps to provide a cadaverine product.
B01D 21/26 - Séparation du sédiment avec emploi de la force centrifuge
B01D 3/34 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction avec une ou plusieurs substances auxiliaires
C12N 11/08 - Enzymes ou cellules microbiennes immobilisées sur ou dans un support organique le support étant un polymère synthétique
C12N 11/04 - Enzymes ou cellules microbiennes immobilisées sur ou dans un support organique piégées à l’intérieur du support, p. ex. dans un gel ou dans des fibres creuses
C12N 11/02 - Enzymes ou cellules microbiennes immobilisées sur ou dans un support organique
Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
The present invention provides a method for preparing nylon salt, which comprises mixing 1,5-pentanediamine, water and dicarboxylic acid at a temperature of 65 to 120° C. to obtain a nylon salt, wherein the amount of the water is 2% to 12% by weight based on the total weight of the 1,5-pentanediamine and the dicarboxylic acid. The present invention also provides a nylon salt. According to the present method for preparing nylon salt, the incomplete reaction between the 1,5-pentanediamine and the dicarboxylic acid, which is caused by the nylon salt present during the preparation in a solid state, can be avoided; the reaction between the 1,5-pentanediamine and the dicarboxylic acid can be significantly speeded up, and the reaction time is accordingly shorten. Consequently, the content of diamine and dicarboxylic acid remained in the resulting nylon salt is very low. In addition, the final nylon salt product, which present in a solid state, makes it easier to be stored and transported.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
89.
Expression of polypeptides involved in lysine decarboxylation, and methods and applications thereof
P. aeruginosa. Mutant host cells comprise a polynucleotide sequence encoding Ldc2 polypeptide, a fragment and/or a mutant that has been integrated into the host cell chromosome. A polypeptide, a fragment and/or a mutant comprise Ldc2. A non-naturally occurring polynucleotide, and/or a mutant encodes polypeptide comprising Ldc2. Biobased cadaverine is produced using the transformants and the biobased cadaverine is prepared by the method. Polyamides are formed using the biobased cadaverine and compositions.
C12N 15/00 - Techniques de mutation ou génie génétiqueADN ou ARN concernant le génie génétique, vecteurs, p. ex. plasmides, ou leur isolement, leur préparation ou leur purificationUtilisation d'hôtes pour ceux-ci
C07H 21/04 - Composés contenant au moins deux unités mononucléotide comportant chacune des groupes phosphate ou polyphosphate distincts liés aux radicaux saccharide des groupes nucléoside, p. ex. acides nucléiques avec le désoxyribosyle comme radical saccharide
C12P 13/00 - Préparation de composés organiques contenant de l'azote
C12N 15/52 - Gènes codant pour des enzymes ou des proenzymes
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
23 - Fils à usage textile
24 - Tissus et produits textiles
Produits et services
Synthetic resin adhesives for industrial purposes;
unprocessed artificial and synthetic resins; unprocessed
plastic in the form of powder or granules; unprocessed
plastic materials in powder, liquid or paste form;
unprocessed plastics; unprocessed plastics for industrial
use; unprocessed plastics in all forms. Chemical fiber thread and yarn not for textile use;
insulating fabrics; insulating materials; resins in extruded
form for general industrial use; semi-processed resins;
semi-processed synthetic resins; semi-worked synthetic
plastic and synthetic resins as semi-finished products in
form of pellets, rods, foils, foams, fibers, films and
sheets; synthetic elastomer resin blended with additives and
colorants sold in a pellet form; thermoplastic compounds,
thermoplastic elastomer resins and thermoplastic
concentrates in pellet form for use in manufacturing in a
wide variety of industries; thermoplastic elastomer resins
in pellet form for use in further manufacture. All-purpose nylon straps; non-metal bands for wrapping or
binding; nylon fibers for textile use; nylon support straps
for holding planted trees in an upward position; raw textile
fibers; semi-synthetic fibers; string; synthetic fibers;
synthetic fibers and filaments for use in the manufacture of
fabrics, textiles, yarns, and carpets; textile fibers. Threads and yarns for textile use. Chemical fiber fabrics; fabrics for textile use.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
Chemical fiber thread and yarn not for textile use; Insulating fabrics; Insulating materials; Resins in extruded form for general industrial use; Semi-processed resins; Semi-processed synthetic resins; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Synthetic elastomer resin blended with additives and colorants sold in a pellet form; Thermoplastic compounds, thermoplastic elastomer resins and thermoplastic concentrates in pellet form for use in manufacturing in a wide variety of industries; Thermoplastic elastomer resins in pellet form for use in further manufacture All-purpose nylon straps; Non-metal bands for wrapping or binding; Nylon fibers for textile use; Nylon support straps for holding planted trees in an upward position; Raw textile fibers; Semi-synthetic fibers; String; Synthetic fibers; Synthetic fibers and filaments for use in the manufacture of fabrics, textiles, yarns, and carpets; Textile fibers
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
23 - Fils à usage textile
24 - Tissus et produits textiles
25 - Vêtements; chaussures; chapellerie
27 - Revêtements de sols et de murs
Produits et services
Synthetic resin adhesives for industrial purposes; Unprocessed artificial and synthetic resins; Unprocessed plastic in the form of powder or granules; Unprocessed plastic materials in powder, liquid or paste form; Unprocessed plastics; Unprocessed plastics for industrial use; Unprocessed plastics in all forms Threads and yarns for textile use Chemical fiber fabrics; Fabrics for textile use Clothing, namely, shirts, pants, undergarments, coats, tee-shirts, hats, and footwear Aircraft carpet; Carpet backing; Carpet padding; Carpet tiles; Carpet tiles for covering floors; Carpet tiles made of textiles; Carpet underlay; Carpet underlays; Carpeting; Carpets; Carpets and rugs; Carpets for automobiles; Vehicle carpets
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
24 - Tissus et produits textiles
25 - Vêtements; chaussures; chapellerie
Produits et services
Threads for textile use and yarns Carpets, rugs, textile floor mats for use in the home, linoleum, floor coverings, carpets for automobiles, artificial turf Unprocessed artificial resins, unprocessed plastics, adhesives for use in industry, synthetic resins, unprocessed synthetic plastics in all forms Fabrics for textile use, upholstery fabric, fabrics for shoes, textile filtering material, cloth for the manufacture of shades, resin-saturated fiberglass fabric for use in transportation, armoring, structural reinforcement and structural repair, non-woven textile fabrics Clothing, namely, shirts, shorts and pants, undergarments, jerseys, coats, tee-shirts, shirts, pants, hosiery, swim wear, rain wear, hats, shoes, boots
96.
Method for separation and purification of long-chain diacids
