The present disclosure is directed to a method for repulping lignocellulosic fibers having at least one wet strength resin disposed thereon, the method comprising:
a) preparing an aqueous slurry comprising (1) the lignocellulosic fiber, (2) the resin, and (3) an enzymatic agent present in an amount of from about 0.01 to about 1 wt. %, based on the dry weight of the lignocellulosic fiber, wherein the enzymatic agent comprises:
i) at least one hemicellulase; and,
ii) at least one cellulase; and,
b) agitating the slurry.
Methods for producing a vinylamine-containing polymer solution and vinylamine-containing polymer solutions produced through the methods are provided herein. In an embodiment, a method for producing a vinylamine-containing polymer solution includes polymerizing N-vinylcarboxamide monomers and hydrolyzing a resulting intermediate polymer formulation. The method involves determining the amount of unreacted N-vinylcarboxamide monomers in the intermediate polymer formulation, modifying one or more process parameters of the polymerization step accordingly, and repeating the polymerization step with the modified process parameter(s). Methods of assessing the amount of unreacted monomers include directly measuring the amount of unreacted monomers in the intermediate, observing the color of the product, measuring the wavelength of the product, or measuring the dynamic viscosity of the product.
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
Methods for treating wastewater and dewatering a discharge sludge stream are provided. In an exemplary embodiment, a method for treating wastewater includes adding oxygen to a wastewater to produce a treated wastewater, and separating a wastewater sludge stream from the treated wastewater. The wastewater sludge stream is split to produce a recycle sludge stream and a discharge sludge stream, and the recycle sludge stream is added to the wastewater such that the oxygen is added to the recycle sludge stream and the wastewater. A peroxide source is added to the discharge sludge stream, and the discharge sludge stream is dewatered to produce a sludge cake and a sludge liquid portion.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Chemicals for use in industry; chemicals for use in
industrial water treatment; chemicals for use in pulp and
paper manufacturing; chemicals for the treatment of water
and wastewater; chemicals for the treatment of boiler and
cooling water systems; chemicals for industrial purposes for
use in the mining, bio-refining, oil and gas, food and
beverage processing, chemical processing and power
industries; surface coating removal chemicals and tank
surface and media cleaning chemicals for municipal water
systems; chemicals for industrial use in reverse osmosis
systems and other membrane applications; chemicals for
industrial use in reducing or removing fouling in reverse
osmosis systems and other membrane systems; polymers for use
in industrial and municipal wastewater and water treatment
applications for liquid and solid separation; chemical
charge control agents for use in industrial and municipal
wastewater and water treatment applications; chemical
demulsifiers for use in the field of oil exploration,
production and processing; foam control agents and antifoam
agents that reduce/eliminate foam and/or entrained air in
industrial systems; hydrophobic sizing agents that provide
liquid and grease resistance to substrates and promote water
resistance in water soluble/sensitive systems; unprocessed
synthetic wet strength resins for use in the manufacture of
substrates in order to impart strength to substrates;
chemical dry strength additives for use in the manufacture
of substrates in order to impart strength to substrates;
chemical synthetic temporary wet strength additives used in
the pulp and paper industry in order to impart strength to
substrates; chemical creping and release aids for use in the
manufacture of paper and paper board; chemicals for use in
pulping cellulosic materials during the manufacture of pulp
and paper products; chemical deposit control agents for use
in pulp, paper and paperboard manufacturing systems;
re-pulping aids, namely, chemicals used in the manufacture
of paper and paper products; foam control agents and
antifoam agents that reduce/eliminate foam and/or entrained
air in pulp and paper making systems; unprocessed
formaldehyde-free synthetic resins for use in the building
products industry; polymer based compositions that impart
toughness to formulations and improve adhesion to low
surface energy substrates used in the manufacture of
commercial, industrial and domestic goods; chemicals for
control of organic and/or inorganic deposits in pulp and
paper manufacturing; chemical retention, drainage and
clarification agents for use in the pulp and paper
manufacturing industry for liquid and solid separation. Microbiocides for use in pulp, paper and paperboard
manufacturing systems and for use in industrial water
systems, namely, biocides, bactericides, fungicides and
algaecides.
5.
METHODS OF DEWATERING WASTE STREAMS CONTAINING ENTRAINED PARTICLES
Methods are provided for dewatering a water stream containing entrained particles. The water stream may be a wastewater stream from a papermaking process. Separation of the entrained particles from the water is achieved using a clarifying composition that contains a vinylamine-containing polymer or precursor(s) thereof. The vinylamine-containing polymer acts as a flocculant to effectuate separation. Then, the mixture is separated in a clarifier unit to produce a clarified water stream and clarifier bottoms.
C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
C02F 103/28 - Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
6.
METHOD OF PRODUCING VINYLAMINE-CONTAINING POLYMERS
Provided is a method for the production of vinylamine-containing polymers. The method relates to the production of polyvinylamine compositions through hydrolysis of vinylcarboxamide-containing polymers, such as polymers and copolymers of N-vinylformamide. The process of hydrolyzing the vinylcarboxamide-containing polymer can be carried out at any location, such as on-site at papermaking facilities.
Provided is a method for the production of vinylcarboxamide-containing polymers or co-polymers in granular, beaded, powdered, or particulate form and their subsequent hydrolysis. The vinylcarboxamide-containing polymers or co-polymers are produced via a polymerization process employing a photoinitiated gel polymerization technique.
D21H 17/34 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C08F 126/02 - Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
D21H 21/10 - Retention agents or drainage improvers
8.
PARTICULATE VINYLAMINE COMPOSITIONS AND METHOD OF MAKING
Provided is a method for the production of vinylcarboxamide-containing polymers in a granular, beaded, powdered, or particulate form and subsequent hydrolysis thereof. The vinylcarboxamide-containing polymers and co-polymers, are precipitated in a granular, beaded, powdered, or particulate form employing an inverse suspension polymerization technique.
D21H 17/34 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C08F 26/02 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
D21H 21/10 - Retention agents or drainage improvers
Methods are provided for synthesizing a polymer product. The methods include combining an ultraviolet light-activated polymerization initiator and a nitrogen-containing vinyl monomer to form a reaction mixture. The initiator is radicalized only by exposure to ultraviolet light. The reaction mixture has an active content of reactive components present in an amount of at least about 20 weight % based on a total weight of the reaction mixture. The methods further include exposing the reaction mixture to ultraviolet light produced from an ultraviolet light source to form a polymer product. The polymer product includes a reaction product of the initiator and the nitrogen-containing vinyl monomer. The polymer product is comminutable to form discrete granules of the polymer product.
Provided is a composition that includes a wax combined with a nanocellulose. The composition can be applied to a substrate leading to a better wax coverage with reduced porosity that provides for improved oil, grease, gas, water, and water vapor barrier properties to the coated articles.
A self-stabilized glyoxalated polyacrylamide (gPAM) resin composition is disclosed. The gPAM resin composition consists essentially of an aqueous reaction product of a cationic polyacrylamide (cPAM) prepolymer and glyoxal carried out in an aqueous reaction mixture having a total solids of less than a critical concentration of the gPAM resin and a pH of at least about 7.5. The cPAM prepolymer comprises a weight average molecular weight (Mw) of at least about 5,000 Da and a cationic monomer content of at least about 4, alternatively at least about 10 mol %. The reaction product is prepared without addition of any acid. The gPAM resin composition maintains a substantially single phase for a stability period of at least about 1 day after preparation, without the addition of any acid or other stabilizing compounds. Methods of preparing and using the gPAM resin composition are also disclosed.
Provided is a stabilized slurry composition having enhanced barrier properties. The slurry includes a pigment having a BET surface area of greater than 15 m2/g and a composite of a microcrystalline cellulose and carboxymethyl cellulose. The slurry can be used to formulate barrier coatings to be applied to the surface of a paper or paperboard product to enhance and improve the barrier properties of the product.
A number of variations may include depositing, on a substrate comprising cellulose, an aqueous mixture comprising modified cellulose polymer molecules and organic acid molecules comprising at least two carboxyl acid groups; removing water from the mixture deposited on the substrate to provide a coating on the substrate; wherein the organic acid molecules have a melting point above ambient temperature, and wherein the organic acid molecules are cross-linkable with the modified cellulose polymer molecules and the cellulose at or above ambient temperatures.
Compositions and methods for dispersing complex scale based on elemental sulfur are provided. A method for dispersing elemental sulfur in acidic water includes providing water including elemental sulfur and adding from about 1 to about 100 parts by weight of a sulfur dispersion additive to the water based on one million parts by weight of the water to disperse the elemental sulfur in the water. The sulfur dispersion additive is chosen from a water soluble aromatic surfactant, a lignosulfonate, a naphthalene sulfonate, and combinations thereof.
Compositions and methods for dispersing metal sulfates are provided. A method for dispersing metal sulfates includes providing a mineral ore; contacting an acidic leaching solution with the mineral ore; adding a dispersion additive to the mineral ore and/or leaching solution to disperse the metal sulfates therein, wherein the dispersion additive is chosen from a water-soluble aromatic surfactant, a lignosulfonate, a naphthalene sulfonate, and combinations thereof.
The present disclosure generally relates to dewatering aqueous sludge that is produced by waste water or sewage treatment facilities such as from municipal and industrial processes. The method includes treating an aqueous sludge with a cationic polyacrylamide polymer comprising the reaction product of: acrylyl monomer(s) comprising a nonionic amide; cationic monomer(s); and vinyl monomer(s).
C02F 11/122 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
C02F 103/28 - Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
17.
CALCITE SCALE INHIBITORS FOR STRESSED PROCESS CONDITIONS
A scale inhibitor composition for reducing calcium scale under stressed conditions is disclosed. The composition comprises a combination of scale inhibiting components, including an acrylic acid polymer and a chelant. The acrylic acid polymer is provided as an aqueous polymerization reaction product of an acrylic acid and a chain transfer agent, with the acrylic acid polymer having a weight averaged molecular weight (Mw) of from about 1,300 to about 15,000 Daltons. A method of preparing the scale inhibitor composition is also disclosed, and comprises reacting the acrylic acid and the chain transfer agent to give the reaction product comprising the acrylic acid polymer, and combining the reaction product with the chelant. A process for ameliorating calcite scale in a mining operation is further disclosed.
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C02F 5/14 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
Provided is Miktoarm star polymers, which are provided either as an aqueous solution or as thin micro-flakes. Also provided is a process of making the star polymers thereof. These polymers bear short polyacrylic segment(s) and long buoyant sulfonated polymer segment(s), which were found to be effective as additives for cement slurry water retention and as a plasticizer.
C08F 228/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur by a bond to sulfur
The present compositions and methods relate to an interpenetrating polymer network (IPN) composition comprising a two-step polymerization. In a first step, a first inverse water-in-oil emulsion polymer is prepared and wherein a second inverse water-in-oil emulsion is combined with the first inverse water-in-oil emulsion and wherein polymerization of the second inverse water-in-oil emulsion is initiated in-situ with the first inverse water-in-oil emulsion polymer, producing a second inverse water-in-oil emulsion polymer that is physically interlaced or cross-linked with the first inverse water-in-oil emulsion creating an interpenetrating polymer network (IPN) composition.
C02F 11/147 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
C02F 103/28 - Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
C02F 103/34 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups
C08L 33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
20.
DEFOAMING AGENT AND COMPOSITIONS CONTAINING THE DEFOAMING AGENT
A method of treatment of an aqueous foamable medium, such as a process stream of a pulp and paper mill, the method comprising contacting the aqueous process stream with a defoaming agent comprising: a) at least one C12 to C40 Guerbet alcohol; and/or, b) at least one polyol ester.
B01D 19/04 - Foam dispersion or prevention by addition of chemical substances
C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
C02F 103/28 - Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
C08G 77/14 - Polysiloxanes containing silicon bound to oxygen-containing groups
An aqueous composition includes water and a cationic polymeric resin having at least one reactive aldehyde group and formed from the reaction of glyoxal and a polymer. The polymer comprises at least one acrylamide repeating unit and at least one cationic repeating unit wherein a number of reactive aldehyde equivalents divided by a number of equivalents of residual glyoxal based on the total weight of the polymer is greater than about 1.2, wherein prior to reaction the polymer has greater than about 50 mole % acrylamide repeat units and from about 2 to about 30 mole % cationic repeating units, wherein greater than about 5 mole % of the acrylamide repeating units are converted to reactive aldehyde groups in the cationic polymer resin; and wherein the composition exhibits a viscosity gain of less than about 200%.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Chemicals for use in industry; chemicals for use in
industrial water treatment; chemicals for use in pulp and
paper manufacturing; chemicals for the treatment of water
and wastewater; chemicals for the treatment of boiler and
cooling water systems; chemicals for industrial purposes for
use in the mining, bio-refining, oil and gas, food and
beverage processing, chemical processing and power
industries; surface coating removal chemicals and tank
surface and media cleaning chemicals for municipal water
systems; chemicals for industrial use in reverse osmosis
systems and other membrane applications; chemicals for
industrial use in reducing or removing fouling in reverse
osmosis systems and other membrane systems; polymers for use
in industrial and municipal wastewater and water treatment
applications for liquid and solid separation; chemical
charge control agents for use in industrial and municipal
wastewater and water treatment applications; chemical
demulsifiers for use in the field of oil exploration,
production and processing; foam control agents and antifoam
agents that reduce/eliminate foam and/or entrained air in
industrial systems; hydrophobic sizing agents that provide
liquid and grease resistance to substrates and promote water
resistance in water soluble/sensitive systems; unprocessed
synthetic wet strength resins for use in the manufacture of
substrates in order to impart strength to substrates;
chemical dry strength additives for use in the manufacture
of substrates in order to impart strength to substrates;
chemical synthetic temporary wet strength additives used in
the pulp and paper industry in order to impart strength to
substrates; chemical creping and release aids for use in the
manufacture of paper and paper board; chemicals for use in
pulping cellulosic materials during the manufacture of pulp
and paper products; chemical deposit control agents for use
in pulp, paper and paperboard manufacturing systems;
re-pulping aids, namely, chemicals used in the manufacture
of paper and paper products; foam control agents and
antifoam agents that reduce/eliminate foam and/or entrained
air in pulp and paper making systems; unprocessed
formaldehyde-free synthetic resins for use in the building
products industry; polymer based compositions that impart
toughness to formulations and improve adhesion to low
surface energy substrates used in the manufacture of
commercial, industrial and domestic goods; chemicals for
control of organic and/or inorganic deposits in pulp and
paper manufacturing; chemical retention, drainage and
clarification agents for use in the pulp and paper
manufacturing industry for liquid and solid separation. Microbiocides for use in pulp, paper and paperboard
manufacturing systems and for use in industrial water
systems, namely, biocides, bactericides, fungicides and
algaecides.
23.
FOAM FORMULATIONS FOR APPLICATION OF DRY STRENGTH AGENTS
Foam formulations and methods for manufacturing paper products using foam formulations are provided. An exemplary method includes producing a foam of a gas, water, a dry strength agent, and a combination of foaming agents including an anionic sulfated/sulfonated surfactant and a polysorbate-type nonionic surfactant; applying the foam to a web; and processing the web to form the product.
A drainage-optimized additive composition for papermaking is disclosed. The composition comprises an aqueous media, a glyoxalated polyacrylamide (GPAM) resin, and an anionic polyacrylamide (APAM) resin. The GPAM resin has a weight average molecular weight (Mw) of at least about 5 MDa and a cationic monomer content of at least about 4 mol %. The APAM resin has a Mw of at least about 0.25 MDa, and an anionic monomer content up to about 25 mol %. A method of preparing the additive composition is also disclosed, and comprises preparing a cationic acrylamide (CPAM) prepolymer having a predetermined cationic monomer, selectively glyoxalating the CPAM prepolymer in aqueous media during glyoxalation to give the GPAM resin, and combining the GPAM and APAM resins. The method may be carried out in situ during a papermaking process (i.e., as an on-site method), and may be implemented in different forms during the process of forming paper.
Provided is a method for the removal of salts and by-products from vinylamine-containing polymers. In particular, the method allows the removal of unwanted salts, by-products, spent initiators and short chain vinylamine-containing polymers while retaining the functional, higher molecular weight polymers that provide for desired product performance.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
C08F 26/02 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
D21H 21/10 - Retention agents or drainage improvers
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemicals for industrial use, namely, for controlling the formation of organic and inorganic scales in industrial processes used in the sugar, food, beverage, biorefining, fuel ethanol, pharmaceutical and personal care industries; chemicals for industrial use
A cationic polyacrylamide (cPAM) and methods of making and using the same are disclosed. The cPAM comprises the radical polymerization reaction product of an acrylamide (AM) monomer, a cationic monomer, and, optionally, one or more additional ethylenically unsaturated monomer(s). A glyoxalated polyacrylamide (gPAM) resin is also disclosed, and comprises the reaction product of a glyoxalation agent and the cationic polyacrylamide (cPAM). An additive composition for papermaking is also disclosed, along with methods of preparing and using the same. The additive composition comprises an aqueous media and the glyoxalated polyacrylamide (gPAM) resin dispersed therein. The preparation methods provide for low product impurities at the cPAM, gPAM, and paper product stages.
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Chemicals for industrial use, namely, chemicals for water and wastewater treatment, pulp and paper manufacturing, mining, bio-refining, oil and gas processing, food and beverage processing, chemical processing, and power generation; specialty chemicals for industrial use, namely, surface coating removal preparations, membrane system antifouling agents, foam control agents, demulsifiers, deposit control agents, sizing agents, strength additives, creping aids, and retention agents; polymer compositions for industrial use in adhesion and toughness applications, building products, and re-pulping aids for paper manufacturing. Microbiocides for use in pulp, paper and paperboard manufacturing systems and for use in industrial water systems, namely, biocides, bactericides, fungicides and algaecides
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Chemicals for use in industry; Chemicals for use in industry; chemicals for use in industrial water treatment; chemicals for use in industrial water treatment; chemicals for use in pulp and paper manufacturing; chemicals for use in pulp and paper manufacturing; Chemicals for the treatment of water and wastewater; Chemicals for the treatment of water and wastewater; Chemicals for the treatment of boiler and cooling water systems; Chemicals for the treatment of boiler and cooling water systems; Chemicals for industrial purposes for use in the mining, bio-refining, oil and gas, food and beverage processing, chemical processing and power industries; Chemicals for industrial purposes for use in the mining, bio-refining, oil and gas, food and beverage processing, chemical processing and power industries; Surface coating removal chemicals and tank surface and media cleaning chemicals for municipal water systems; Surface coating removal chemicals and tank surface and media cleaning chemicals for municipal water systems; Chemicals for industrial use in reverse osmosis systems and other membrane applications; Chemicals for industrial use in reverse osmosis systems and other membrane applications; chemicals for industrial use in reducing or removing fouling in reverse osmosis systems and other membrane systems; chemicals for industrial use in reducing or removing fouling in reverse osmosis systems and other membrane systems; polymers for use in industrial and municipal wastewater and water treatment applications for liquid and solid separation; polymers for use in industrial and municipal wastewater and water treatment applications for liquid and solid separation; chemical charge control agents for use in industrial and municipal wastewater and water treatment applications; Chemicals, namely, charge control agents for use in industrial and municipal wastewater and water treatment applications; chemical demulsifiers for use in the field of oil exploration, production and processing; chemical demulsifiers for use in the field of oil exploration, production and processing; foam control agents and antifoam agents reduce and eliminate foam and entrained air in industrial systems; Chemical foam control agents and antifoam agents that reduce and eliminate foam and entrained air in industrial systems; hydrophobic sizing agents that provide liquid and grease resistance to substrates and promote water resistance in water soluble and water sensitive systems; hydrophobic sizing agents that provide liquid and grease resistance to substrates and promote water resistance in water soluble and water sensitive systems; unprocessed synthetic wet strength resins for use in the manufacture of substrates in order to impart strength to substrates; unprocessed synthetic wet strength resins for use in the manufacture of substrates in order to impart strength to substrates; chemical dry strength additives for use in the manufacture of substrates in order to impart strength to substrates; chemical dry strength additives for use in the manufacture of substrates in order to impart strength to substrates; chemical synthetic temporary wet strength additives used in the pulp and paper industry in order to impart strength to substrates; chemical synthetic temporary wet strength additives used in the pulp and paper industry in order to impart strength to substrates; chemical creping and release aids for use in the manufacture of paper and paper board; Chemicals, namely, chemical creping and release aids for use in the manufacture of paper and paper board; chemicals for use in pulping cellulosic materials during the manufacture of pulp and paper products; chemicals for use in pulping cellulosic materials during the manufacture of pulp and paper products; chemical deposit control agents for use in pulp, paper and paperboard manufacturing systems; Chemicals, namely, chemical deposit control agents for use in pulp, paper and paperboard manufacturing systems; re-pulping aids, namely, chemicals used in the manufacture of paper and paper products; re-pulping aids, namely, chemicals used in the manufacture of paper and paper products; foam control agents and antifoam agents that reduce and eliminate foam and entrained air in pulp and paper making systems; Chemical foam control agents and antifoam agents that reduce and eliminate foam and entrained air in pulp and paper making systems; unprocessed formaldehyde-free synthetic resins for use in the building products industry; unprocessed formaldehyde-free synthetic resins for use in the building products industry; polymer based compositions that impart toughness to formulations and improve adhesion to low surface energy substrates used in the manufacture of commercial, industrial and domestic goods; polymer based chemical compositions that impart toughness to formulations and improve adhesion to low surface energy substrates used in the manufacture of commercial, industrial and domestic goods; chemicals for control of organic and inorganic deposits in pulp and paper manufacturing; chemicals for control of organic and inorganic deposits in pulp and paper manufacturing; chemical retention, drainage and clarification agents for use in the pulp and paper manufacturing industry for liquid and solid separation; Chemicals, namely, chemical retention, drainage and clarification agents for use in the pulp and paper manufacturing industry for liquid and solid separation Microbiocides for use in pulp, paper and paperboard manufacturing systems and for use in industrial water systems, namely, biocides, bactericides, fungicides and algaecides
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Chemicals for use in industry; Chemicals for use in industry; chemicals for use in industrial water treatment; chemicals for use in industrial water treatment; chemicals for use in pulp and paper manufacturing; chemicals for use in pulp and paper manufacturing; Chemicals for the treatment of water and wastewater; Chemicals for the treatment of water and wastewater; Chemicals for the treatment of boiler and cooling water systems; Chemicals for the treatment of boiler and cooling water systems; Chemicals for industrial purposes for use in the mining, bio-refining, oil and gas, food and beverage processing, chemical processing and power industries; Chemicals for industrial purposes for use in the mining, bio-refining, oil and gas, food and beverage processing, chemical processing and power industries; Surface coating removal chemicals and tank surface and media cleaning chemicals for municipal water systems; Surface coating removal chemicals and tank surface and media cleaning chemicals for municipal water systems; Chemicals for industrial use in reverse osmosis systems and other membrane applications; Chemicals for industrial use in reverse osmosis systems and other membrane applications; chemicals for industrial use in reducing or removing fouling in reverse osmosis systems and other membrane systems; chemicals for industrial use in reducing or removing fouling in reverse osmosis systems and other membrane systems; polymers for use in industrial and municipal wastewater and water treatment applications for liquid and solid separation; polymers for use in industrial and municipal wastewater and water treatment applications for liquid and solid separation; chemical charge control agents for use in industrial and municipal wastewater and water treatment applications; Chemicals, namely, charge control agents for use in industrial and municipal wastewater and water treatment applications; chemical demulsifiers for use in the field of oil exploration, production and processing; chemical demulsifiers for use in the field of oil exploration, production and processing; foam control agents and antifoam agents reduce and eliminate foam and entrained air in industrial systems; Chemical foam control agents and antifoam agents that reduce and eliminate foam and entrained air in industrial systems; hydrophobic sizing agents that provide liquid and grease resistance to substrates and promote water resistance in water soluble and water sensitive systems; hydrophobic sizing agents that provide liquid and grease resistance to substrates and promote water resistance in water soluble and water sensitive systems; unprocessed synthetic wet strength resins for use in the manufacture of substrates in order to impart strength to substrates; unprocessed synthetic wet strength resins for use in the manufacture of substrates in order to impart strength to substrates; chemical dry strength additives for use in the manufacture of substrates in order to impart strength to substrates; chemical dry strength additives for use in the manufacture of substrates in order to impart strength to substrates; chemical synthetic temporary wet strength additives used in the pulp and paper industry in order to impart strength to substrates; chemical synthetic temporary wet strength additives used in the pulp and paper industry in order to impart strength to substrates; chemical creping and release aids for use in the manufacture of paper and paper board; Chemicals, namely, chemical creping and release aids for use in the manufacture of paper and paper board; chemicals for use in pulping cellulosic materials during the manufacture of pulp and paper products; chemicals for use in pulping cellulosic materials during the manufacture of pulp and paper products; chemical deposit control agents for use in pulp, paper and paperboard manufacturing systems; Chemicals, namely, chemical deposit control agents for use in pulp, paper and paperboard manufacturing systems; re-pulping aids, namely, chemicals used in the manufacture of paper and paper products; re-pulping aids, namely, chemicals used in the manufacture of paper and paper products; foam control agents and antifoam agents that reduce and eliminate foam and entrained air in pulp and paper making systems; Chemical foam control agents and antifoam agents that reduce and eliminate foam and entrained air in pulp and paper making systems; unprocessed formaldehyde-free synthetic resins for use in the building products industry; unprocessed formaldehyde-free synthetic resins for use in the building products industry; polymer based compositions that impart toughness to formulations and improve adhesion to low surface energy substrates used in the manufacture of commercial, industrial and domestic goods; polymer based chemical compositions that impart toughness to formulations and improve adhesion to low surface energy substrates used in the manufacture of commercial, industrial and domestic goods; chemicals for control of organic and inorganic deposits in pulp and paper manufacturing; chemicals for control of organic and inorganic deposits in pulp and paper manufacturing; chemical retention, drainage and clarification agents for use in the pulp and paper manufacturing industry for liquid and solid separation; Chemicals, namely, chemical retention, drainage and clarification agents for use in the pulp and paper manufacturing industry for liquid and solid separation Microbiocides for use in pulp, paper and paperboard manufacturing systems and for use in industrial water systems, namely, biocides, bactericides, fungicides and algaecides.
32.
AQUEOUS BARRIER COATINGS AND METHODS OF IMPROVING BARRIER PROPERTIES OF PACKAGING MATERIALS
An aqueous paper barrier coating and methods for improving barrier properties of packaging material are described. The packaging material includes a substrate with coatings to provide a packaging material having tailored moisture vapor transmission, oxygen permeation or transmission, oil and grease resistance, and light properties.
A method for digesting lignocellulosic material includes combining a lignocellulosic material comprising lignocellulosic biomass, a polymerized naphthalene sulfonate, a sodium xylene sulfonate, and a white liquor comprising sodium hydroxide and sodium sulfide to form a mixture. Further, the method includes heating the mixture to digest at least a portion of the lignocellulosic material.
Provided is an alkyl ketone dimer emulsion and the preparation thereof. More particularly, described is a 3-component emulsion, which is easy to prepare using low emulsification ability—high shear speed capability equipment to prepare the AKD emulsion with excellent quality, high efficiency, and less preparation time.
Compositions and methods for minimizing fouling and/or reducing the viscosity of black liquor in a Kraft pulping process are provided. An exemplary composition includes an anionic sulfate or sulfonate surfactant; an anionic sulfate or sulfonate dispersant; and a nonionic alkoxylated surfactant.
A fast-hydrating polyacrylamide solid in the shape of microplates is provided and the process to make the microplates. The microplates can be treated with any processing and/or functional substances to facilitate the dissolution process or/and to import functional properties to the said solid.
A strength additive composition for papermaking processes using high-kappa furnish is disclosed. The composition comprises an aqueous media and a glyoxalated polyacrylamide (gPAM) resin having a weight average molecular weight (Mw) of at least about 5 MDa, a radius of gyration (Rg) of at least about 150 nm, and a structural density (Rg/Mw) of less than about 15 nm/Mda. A method of preparing the composition is also disclosed, and may be carried out in situ during a papermaking process (i.e., as an on-site method). A process of forming paper with the composition is also disclosed, and comprises combining the composition with an aqueous suspension of cellulosic fibers, forming the cellulosic fibers into a sheet, and drying the sheet to produce a paper.
Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the weight average molecular weight of the dispersed polymer is in a specified narrow range. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.
C08F 265/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group on to polymers of esters
39.
HIGH MOLECULAR WEIGHT POLYMERIC DISPERSIONS MANUFACTURED UNDER CONTROLLED ADIABATIC CONDITIONS
Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein step of subjecting the monomer composition is performed under controlled adiabatic conditions. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.
C08J 3/07 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the radical polymerization is performed in presence of a metal scavenger system comprising a metal scavenger and an acid. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.
Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the ratio of the polymeric dispersant to the dispersed polymer in the polymer dispersion is in a specified narrow range. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.
C08F 2/28 - Emulsion polymerisation with the aid of emulsifying agents cationic
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
C08L 33/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
C08L 33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
42.
CATIONIC EMULSION TERPOLYMER TO INCREASE CAKE SOLIDS IN CENTRIFUGES
The present disclosure generally relates to dewatering aqueous sludge that is produced by waste water or sewage treatment facilities such as from municipal and industrial processes. The method includes treating an aqueous sludge with a cationic polyacrylamide terpolymer that includes an acrylamide; a first cationic monomer and a second cationic monomer that is different from the first monomer, and dewatering the treated aqueous sludge.
Methods of analyzing a sheet of paper, and methods of preparing paper are provided. In an exemplary embodiment, a method for preparing paper includes applying a paper additive to a first sheet of paper using an initial production technique. The first sheet of paper is sectioned into a first section and a second section, where the first sheet of paper has a top surface defined in an X-Y plane, where a Z axis is perpendicular to the X-Y plane, and where the first and second sections are defined at different positions along the Z axis. A paper additive concentration is measured in the first and second sections, and the initial production technique is adjusted to a subsequent production technique to influence a paper additive concentration profile along the Z axis.
Methods for manufacturing sized paper products are provided. An exemplary method includes producing a foam of water, air, a foaming agent, and a sizing agent. Further, the exemplary method includes applying the foam to a web and processing the web to form the product.
Provided is a method of dewatering aqueous sludge that is produced by waste water or sewage treatment facilities, such as from industrial and municipal processes. The method includes treating an aqueous sludge with an associative and branching or cross-linked inverse emulsion cationic polymer, wherein the associative properties of the cationic polymer are provided by an emulsification surfactant(s) chosen from diblock and triblock polymeric surfactants and/or cross-linking agents.
C02F 11/147 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
46.
COMPOSITION FOR IMPROVING SOFTNESS OF TISSUE AND/OR TOWEL PRODUCTS
A composition for improving softness of tissue and/or towel products includes lignocellulosic fibers; water; and a hydrophobic softener that includes the reaction product of: (1) at least one di- and/or poly-amine, (2) at least one chain extender having at least two carboxyl groups; and (3) at least one hydrophobic end-capper. The reaction product comprises a hydrophobic substitution of at least about 25 mole percent of the hydrophobic end-capper based on a total number of moles of active amine sites of the reaction product. In addition, a method of improving softness of tissue and/or towel products includes combining the lignocellulosic fibers, the water, and the hydrophobic softener; and creating the tissue and/or towel products.
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
A drainage-optimized additive composition for papermaking is disclosed. The composition comprises an aqueous media and a glyoxalated polyacrylamide (gPAM) resin having a weight average molecular weight (Mw) of at least about 5 MDa. The composition comprises from about 1.95 to about 2.45 wt. % of the gPAM resin. A method of preparing the composition is also disclosed, and comprises preparing a cationic acrylamide (cAM) prepolymer having at least one predetermined property, and selectively glyoxalating the cAM prepolymer by controlling the concentration of the cAM prepolymer in the aqueous media during glyoxalation in relation to the predetermined property. The method may be carried out in situ during a papermaking process (i.e., as an on-site method). A process of forming paper with the composition also disclosed, and comprises combining the composition with the aqueous suspension of cellulosic fibers, forming the cellulosic fibers into a sheet, and drying the sheet to produce a paper.
D21H 17/19 - Non-macromolecular organic compounds containing elements other than carbon and hydrogen only forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with itself, or other added substances by reactions only involving carbon-to-carbon unsaturated bonds
C08L 33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
48.
CALCITE SCALE INHIBITORS FOR STRESSED PROCESS CONDITIONS
A scale inhibitor composition for reducing calcium scale under stressed conditions is disclosed. The composition comprises an aqueous polymerization reaction product of an acrylic acid and a chain transfer agent, the reaction product comprising a low-molecular weight acrylic acid polymer having a weight averaged molecular weight (Mw) of from about 1,300 to about 15,000 Daltons. A method of preparing the scale inhibitor composition is also disclosed, and comprises reacting the acrylic acid and the chain transfer agent to give the reaction product comprising the acrylic acid polymer. A process for ameliorating calcite scale in a mining operation is further disclosed. The process comprises adding the scale inhibitor composition to process water comprising at least one stressed scaling condition.
C02F 5/14 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
High molecular weight ethylene (meth)acrylic acid (EAA) dispersions and methods for producing the same are provided. An exemplary method for producing a high molecular weight ethylene (meth)acrylic acid (EAA) dispersion includes mixing an ethylene/(meth)acrylic acid (EAA) copolymer, having a mass flow index (MFI) of no greater than about 300 g/10 min at 190° C. and 2.16 kg, and a base at a temperature of at least about 100° C. to form a molten phase in which the EAA copolymer is relaxed by the base. The exemplary method further includes mixing water with the molten phase at least until the molten phase disperses into the water to form the high molecular weight EAA dispersion.
C08J 3/05 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
A method of controlling volatile fatty acid (VFA) content in a pulp, paper, and/or board making processes is disclosed. The method may be used to provide process improvements in the form of reduced microbial contamination and odor, reduced starch degradation, optimized retention, and improved runability. The method includes treating a process flow comprising a cellulosic material comprising a starch with a VFA control agent. The VFA control agent is non-biocidal, comprises a surfactant or dispersant, a chelator or sequestrant, or a combination thereof, is capable of inhibiting amylase activity in the process flow, and is utilized in an amount sufficient to inhibit microbiological production of one or more VFA. The method optionally includes treating the process flow with a biocidal agent in combination with the VFA control agent.
A method for preparing an adhesive resin for use in a coating composition for a crepe paper manufacturing process that includes the steps of reacting a polycarboxylic acid or a derivative of a polycarboxylic acid with a polyamine to form a polyamidoamine intermediate; reacting a polyetheramine with an epihalohydrin to form a polyetheramine-epihalohydrin intermediate and reacting the polyamidoamine intermediate with the polyetheramine-epihalohydrin intermediate to form a polyamidoamine polyetheramine-epihalohydrin resin.
A composition and method for clarification of extract from sugar-bearing plants is provided. In particular, the composition comprises a mixture of one or more natural adsorbing actives and one or more inorganic coagulating or flocculating agents. The composition can be a solid or an aqueous suspension that is added to the aqueous stream of a sugar clarification process used in sugar bearing plants.
A process for increasing digestion efficiency of lignocellulosic material in a treatment vessel includes providing lignocellulosic material comprising lignocellulosic biomass, providing an alkyl polyglycoside, an alkoxylated alcohol, and a white liquor comprising sodium hydroxide and sodium sulfide, combining the lignocellulosic material, the alkyl polyglycoside, the alkoxylated alcohol, and the white liquor to form a mixture, and heating the mixture in the treatment vessel to a temperature of from about 125° C. to about 185° C. to digest at least a portion of the lignocellulosic material. The alkyl polyglycoside and the alkoxylated alcohol are present in the mixture in a weight ratio of actives from about 5:95 to about 95:5, respectively. The mixture is free of added surfactants that are not the alkyl polyglycoside and/or the alkoxylated alcohol. The process has increased digestion efficiency as compared to a process that does not utilize a combination of the alkyl polyglycoside and the alkoxylated alcohol.
Multi-ply paper products and methods for manufacturing such products are provided. A method includes producing a foam of water, air, a foaming agent, uncooked starch, and a dry strength agent; applying the foam to a first surface of a base embryonic ply web; providing an applied embryonic ply web having a first surface and contacting the first surface of the base web with the first surface of the applied web at an interface to form a combined ply web; and selectively applying vacuum pressure to a second surface of the base web to retain particles of the uncooked starch on or near the first surface, to draw molecules of the dry strength agent into the base web and/or to the first surface of the applied web to retain particles of the uncooked starch in the interface and to draw molecules of the dry strength agent into the applied web.
N-vinyllactam-containing polyvinylamine-based polymers, methods for producing N-vinyllactam-containing polyvinylamine-based polymers, and methods for papermaking are provided. An exemplary method for producing an N-vinyllactam-containing polyvinylamine-based polymer includes performing radical polymerization of a vinylamide monomer, a vinyl monomer containing an amide functional group, and, optionally, a vinyl monomer that contains a carboxylic acid group, to obtain a prepolymer. Further, the method includes hydrolyzing the prepolymer under alkaline conditions to obtain the N-vinyllactam-containing polyvinylamine-based polymer.
D21H 17/43 - Carboxyl groups or derivatives thereof
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
D21H 21/10 - Retention agents or drainage improvers
56.
COMPOSITIONS AND METHODS FOR SENSITIZING HEAT MEDIA
A heat-sensitive recording composition and recording material. The recording material comprising a substrate, wherein a heat-sensitive composition comprising color formers, color developers and a sensitizer comprising a combination of ortho-toluenesulfonamide and para-toluenesulfonamide (OPTSA) is deposited onto the surface of the substrate.
Treated substrates and methods of forming the same are provided. In an exemplary embodiment, a treated substrate includes lignocellulose and a polymer fixed to the lignocellulose to form the treated substrate. The polymer includes a succinic moiety that can reversibly change between a succinic anhydride and a succinic acid moiety. The treated substrate has a wet tensile index of about 3 newton meters per gram or less.
D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
An aqueous composition includes water and a cationic polymeric resin having at least one reactive aldehyde group and formed from the reaction of glyoxal and a polymer. The polymer comprises at least one acrylamide repeating unit and at least one cationic repeating unit wherein a number of reactive aldehyde equivalents divided by a number of equivalents of residual glyoxal based on the total weight of the polymer is greater than about 1.2, wherein prior to reaction the polymer has greater than about 50 mole % acrylamide repeat units and from about 2 to about 30 mole % cationic repeating units, wherein greater than about 5 mole % of the acrylamide repeating units are converted to reactive aldehyde groups in the cationic polymer resin; and wherein the composition exhibits a viscosity gain of less than about 200%.
Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a polymer rich phase separation occurs. The phases are then separated with the polymer rich phase containing a lower amount of impurities than before separation.
The present invention is directed to the use of a quaternized derivative of polyisobutylene as stabiliser in inverse emulsions like inverse emulsions used for a reverse-phase emulsion polymerisation process, e.g. for the polymerisation of acrylamide and ethylenically unsaturated cationic monomers. Such emulsions are e.g. used as flocculant for waste water treatment. The present invention is further directed to inverse emulsions comprising a quaternized derivative of polyisobutylene. The inverse emulsions have sufficiently low viscosity and sufficiently high shear stability. The present invention is further directed to an inverse emulsion polymerisation process, wherein the inverse emulsion comprises a quaternized derivative of polyisobutylene.
D21H 17/34 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
1 groups of formula (I) at least partially hydrolyze the monomers (i) polymerized into the starting polymer V to form primary amino groups.
Certain final polymers A obtained are useful for a method for producing paper or cardboard comprising adding certain final polymers A to a first aqueous pulp suspension, dewatering the obtained second aqueous pulp suspension containing certain final polymers A on a water-permeable substrate to a wet paper structure, and further dewatering of the wet paper structure into a paper or cardboard.
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 220/58 - Amides containing oxygen in addition to the carbonamido oxygen
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
Compositions and methods that generally relates to treating a substrate and for improving adhesion of an image to a treated substrate and more particularly relates to systems and methods utilizing a combination of a poly tertiary amide, colloidal silica, and optionally a polymeric binder, for treating a substrate and for improving adhesion of an electrographic image to a treated substrate.
C09D 179/00 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
64.
Composition and method for the dewatering of aqueous suspensions
Compositions and methods are provided for the recovery of minerals from mineral suspension, such as lime generated in Kraft pulping processes. More particularly, the composition comprises polyalkoxylate co-polymers, alkyleneamine alkoxylates, and optionally anionic surfactants, that when added to mineral dewatering process, aids in the recovery of the mineral.
A method and apparatus for controlling the production of a haloamine biocide based on direct, in-process, measurement of the oxidant content to produce a desired haloamine biocide for the control of growth of microorganisms in aqueous systems, particularly in industrial water systems, is provided.
This disclosure provides a method of improving gold recovery in a cyanide leaching circuit comprising a gold ore slurry. The method includes the step of providing a gold recovery additive chosen from polyacrylic acid, copolymers of acrylic acid and a sulfonated co-monomer, and combinations thereof, wherein the additive has a weight average molecular weight of from about 500 to about 10,000 g/mol. The method also includes the step of combining the gold recovery additive with the gold ore slurry in the cyanide leaching circuit, wherein the gold recovery additive is present in an amount of from about 10 to about 1000 g per ton of dry gold ore to improve the recovery of gold from the gold ore slurry.
Adhesives, methods of producing adhesives, and cellulosic products formed with the adhesive are provided. In an exemplary embodiment, an adhesive includes a protein, a first reactant that has a plurality of isocyanate moieties, and a second reactant with one or more of a chlorohydrin moiety, an azetidinium moiety, and an epoxy moiety. The protein is reacted with the first reactant to form a functionalized protein intermediate, and the functionalized protein intermediate is then reacted with the second reactant.
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
A method for producing dried multilayer paper is provided comprising dewatering a first aqueous fibrous suspension, thereby creating a first fibrous web; dewatering a second aqueous fibrous suspension, thereby creating a second fibrous web; spraying one or more of a first fibrous web and a second fibrous web with a spray solution or spray suspension, thereby producing at least one sprayed fibrous web; assembling the first fibrous web with the second fibrous web; dehydrating the resulting layer compound by pressing; then dehydrating by supplying heat, which creates the dried multilayer paper. The spray solution or spray suspension contains water and at least one water-soluble polymer P. The polymer P is obtained by polymerizing: 40 to 85 mol % of a monomer of Formula I
6-Alkyl; and 15 to 60 mol % of one or more ethylenically unsaturated monomers.
A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.
G03G 7/00 - Selection of materials for use in image-receiving members, i.e. for reversal by physical contactManufacture thereof
G03G 17/08 - Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity patternProcesses involving a migration, e.g. photoelectrophoresis, photoelectrosolographyProcesses involving a selective transfer, e.g. electrophoto-adhesive processesApparatus essentially involving a single such process using an electrophoto-adhesive process, e.g. manifold imaging
G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
71.
Method for producing single-layer or multi-layer paper
D21F 11/04 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type paper or board consisting of two or more layers
D21H 17/34 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D21H 17/37 - Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
Method for reducing formation of CaSO4 and Fe2O3 containing deposits in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore
3n+1, wherein Y is Na, K, H, an organic phosphonate; or combinations thereof, and n is at least about 6. The method includes the step of combining the scale inhibitor and at least one of the gold-containing ore, the water, and the aqueous slurry to reduce scale.
C02F 5/08 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
C02F 5/14 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
C02F 101/20 - Heavy metals or heavy metal compounds
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
73.
Heat sensitive recording material with non-phenolic color developers
Heat sensitive recording material, recording sheets formed from heat sensitive recording material, and methods for forming images using heat sensitive recording material are provided. An exemplary heat sensitive recording material includes a color forming compound, a first non-phenolic color developer, and a second non-phenolic color developer.
A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.
Industrial water such as in a geothermal unit is stabilized against silica polymerization and flocculation by using a combination of inhibitors including a nonionic polyether and a monomeric polycarboxylate.
C02F 5/12 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
The presently claimed invention relates to a color developer, a process for its manufacture and its use as a component in heat sensitive recording material. The heat sensitive recording material is useful for thermographic printing.
C07C 311/16 - Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the sulfonamide groups bound to hydrogen atoms or to an acyclic carbon atom
B41M 5/333 - Colour developing components therefor, e.g. acidic compounds
C07C 303/22 - Preparation of esters or amides of sulfuric acidsPreparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids by reactions not involving the formation of sulfo or halosulfonyl groups
C07C 303/38 - Preparation of esters or amides of sulfuric acidsPreparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reaction of ammonia or amines with sulfonic acids, or with esters, anhydrides, or halides thereof
C07C 311/21 - Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
B41M 5/327 - Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
77.
Method for improving fabric release in structured sheet making applications
A method is provided for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises applying a micro-emulsion of hydrophobic agents and surfactants to the surface of a structured fabric used in sheet making applications of a tissue machine.
D21H 21/14 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
78.
Composition and method for increasing wet and dry paper strength
A composition for increasing paper strength includes a dialdehyde-modified polyacrylamide strengthening agent, a water soluble compound that is soluble at about 5 wt % or greater in water at about 25° C., and water. The water soluble compound is typically present in a weight amount that is greater than a weight amount of the strengthening agent. The composition is formed by combining the strengthening agent and the water soluble compound in aqueous media to form the composition, wherein on a dry basis the water soluble compound is typically present in a greater amount than the strengthening agent, drying the composition to form a powder or paste that has a water content of less than about 10 weight percent and is stable after storage at about room temperature for about six months, and reconstituting the powder or paste by adding water thereto. The reconstituted composition may then be used to make paper.
C08F 218/00 - Copolymers having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid
(c) from 1 to 10 mole % of 2-acrylamido-2-methylpropanesulphonic acid, or a salt thereof.
The invention also provides a process for preparing the composition, the use of the composition in a paper or paperboard making process and methods of making paper or paperboard employing said composition.
The present invention is directed to the use of a quaternized derivative of polyisobutylene as stabiliser in inverse emulsions like inverse emulsions used for a reverse-phase emulsion polymerisation process, e.g. for the polymerisation of acrylamide and ethylenically unsaturated cationic monomers. Such emulsions are e.g. used as flocculant for waste water treatment. The present invention is further directed to inverse emulsions comprising a quaternized derivative of polyisobutylene. The inverse emulsions have sufficiently low viscosity and sufficiently high shear stability. The present invention is further directed to an inverse emulsion polymerisation process, wherein the inverse emulsion comprises a quaternized derivative of polyisobutylene.
A pulp mixture includes a lignocellulosic material, water, lignin, an inorganic salt, and a copolymer including two or more structural units chosen from ethylene oxide units, propylene oxide units, (meth)acrylic acid units, ethyl acrylate units, and combinations thereof. The copolymer is free of silicone-containing structural units and the lignin is present in an amount of greater than about 150 ppm, based on a total weight of the pulp mixture.
A process and device for improving filler retention of paper, paperboard, or cardboard. The process provides for an electromagnetic force being applied to a filler material and/or cellulosic furnish, thereby changing the surface charge of the filler material and/or cellulosic furnish and forming a paper, paperboard, or cardboard product.
A method of producing a polymerized product through an inverse emulsion polymerization reaction. The current method includes introducing an ultraviolet (UV) light sensitive initiator into an inverse emulsion monomer formulation comprising monomers and irradiating the monomer formulation with an UV light source. A polymerized product is formed from polymerization of the monomers in the presence of the irradiated UV light sensitive initiator.
A method of suspending elemental sulfur in water includes the steps of providing water including elemental sulfur and hydrogen sulfide and adding from about 1 to about 100 parts by weight of a sulfur suspension additive to the water based on one million parts by weight of the water to suspend the elemental sulfur in the water. The sulfur suspension additive is chosen from an alkyldiphenyloxide disulfonate or salt thereof, a secondary alcohol ethoxylate, a non-ionic ethylene oxide and/or propylene oxide copolymer, and combinations thereof.
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
The invention relates to a method for producing final polymer A containing the steps (A) providing a starting polymer V, the starting polymer V being obtainable by radical polymerization of the monomers (i) 25 to 90 mol% of a monomer of the formula (I) in which R11614144 alkyl ester of methacrylic acid, (iii) 1 to 45 mol% of a monoethylenically unsaturated carboxylic acid, a monoethylenically unsaturated sulfonic acid or a monoethylenically unsaturated phosphonic acid, or salt forms thereof, (iv) 0 to 35 mol% of one or more ethylenically unsaturated monomers which are different from a monomer (i), (ii) and (iii), wherein the total amount of all monomers (i), (ii), (iii) and (iv) is 100 mol%, and (B) hydrolyzing the provided starting polymer V under alkaline conditions to obtain the final polymer A, wherein the N-C(=O)R1 groups of formula (I) at least partially hydrolyze the monomers (i) polymerized into the starting polymer V to form primary amino groups. Certain final polymers A obtained are useful for a method for producing paper or cardboard comprising adding certain final polymers A to a first aqueous pulp suspension, dewatering the obtained second aqueous pulp suspension containing certain final polymers A on a water-permeable substrate to a wet paper structure, and further dewatering of the wet paper structure into a paper or cardboard. The resulting paper or cardboard has good dry strength.
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
The invention relates to a method for producing paper or cardboard containing the steps (A) adding a final polymer A to a first aqueous fibrous material suspension, whereby a second aqueous fibrous material suspension containing final polymer A is created, wherein the final polymer A is obtainable by - radical polymerisation of the monomers (i) 30 to 90 mol % of a monomer of formula (I) in which R11614144 alkyl ester of methacrylic acid, (iii) 0 to 45 mol % of a monoethylenically un saturated carboxylic acid, a monoethylenically unsaturated sulfonic acid, or a monoethylenically unsaturated phosphonic acid, or salt forms thereof, (iv) 0 to 9 mol % acrylonitrile or methacrylonitrile, (v) 0 to 35 mol % of one or more ethylenically unsaturated monomers which are different from a monomer (i), (ii), (iii) and (iv), wherein the total amount of all monomers (i), (ii), (iii), (iv) and (v) is 100 mol %, in order to obtain a starting polymer V, and - hydrolysing the starting polymer V in order to obtain the final polymer A, wherein the N-C(=O)R1 groups of formula (I) of the monomers (i) polymerised into the starting polymer V hydrolyse at least in part and in so doing form primary amino groups, wherein the ester groups of the monomers (ii) polymerised into the starting polymer V are converted at least in part and at least part of the conversion is the formation of five-membered lactam structural units with the obtained primary amino groups or the formation of carboxylic acid groups or salt forms thereof, (B) dewatering the second aqueous fibrous material suspension containing final polymer A on a water-permeable substrate to form a wet paper structure, (C) dewatering the wet paper structure, whereby the paper or the cardboard is formed. The formed paper or cardboard has a good dry strength. Further subjects of the invention are a paper or cardboard obtainable by the method and a final polymer A and a starting polymer V.
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
The current method relates to an on-line characterization of paper or paper products, such as tissue or other crepe paper products. The method uses an imaging source wherein one or more images are obtained of the sheets surface or topographical area or region, or the image is of an edge of a formed sheet. The one or more images are enhanced and analyzed using various techniques and metrics for characterizing the structure of the formed sheet. The information provides for real time adjustments on the machine.
A method for isolating a humic substance from alumina process liquor is provided herein. Separate from or within the method, bauxite is processed to form the alumina process liquor. The method includes providing a diallyldimethylammonium chloride-containing polymer. The method further includes providing an amine-containing polymer. The method further includes combining the diallyl dimethyl ammonium chloride, the amine-containing polymer, and the alumina process liquor, to isolate the humic substance from the alumina process liquor.
A size press composition for improving properties of lignocellulosic material is provided herein. The size press composition includes an aluminum salt and an anionic styrene acrylate emulsion sizing agent. The aluminum salt and the anionic styrene acrylate emulsion sizing agent are substantially homogeneously dispersed within the size press composition based on visual observation utilizing a microscope at 10× magnification. A size press composition formed by a process is also provided herein. The process includes combining a dye and a starch to form a dye mixture. The process further includes combining the dye mixture, a styrene acrylate emulsion sizing agent, and an aluminum salt to form the size press composition. The dye, the starch, the aluminum salt, and the styrene acrylate emulsion sizing agent are substantially homogeneously dispersed within the size press composition based on visual observation utilizing a microscope at 10× magnification.
D21H 21/00 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties
D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
The current process relates to an adiabatic gel polymerization process for the production of water-soluble polyelectrolytes using UV LED modules or a combination of a UV tube light sources and UV LED modules wherein the resulting polymer has increased throughput, lower residual monomer content as well as lower insolubles compared with current photoinitiated polymerization processes.
A composition and method for imparting paper and paperboard with resistance to aqueous penetrants using renewable biopolymers, and the resulting paper and paperboard, are disclosed. The renewable biopolymers when combined with water-soluble, hydroxylated polymers or water-soluble salts and applied to the surface of paper or paperboard, results in resistance to aqueous penetrants.
A foaming formulation is provided herein. The foaming formulation includes at least one foaming agent in an amount of from about 0.001% to about 10% by weight based on a total weight of the foaming solution. The foaming formulation further includes a synthetic strength additive having a cationic functional group in an amount from about 0.01% to about 50% by weight based on a total weight of the foaming solution. The foaming formulation further includes water.
A method for treating a substrate is provided herein. The method includes providing a substrate and applying a composition to the substrate to form the treated substrate. The composition includes a binder, a binder additive, and an aluminum salt. A method for improving adhesion of an image to the treated substrate is also provided herein. The method includes providing the substrate, applying the composition to the substrate to form the treated substrate, and applying a liquid toner to the treated substrate to form the image on the treated substrate. A printed material exhibiting improved adhesion of the image to the treated substrate is also provided herein. The printed material includes a treated substrate. The treated substrate includes the substrate and a coating disposed on the substrate and formed from the composition. The printed material further includes the image disposed on the treated substrate and formed from the liquid toner.
A method for reducing formation of scale in phosphoric acid production is provided herein. Phosphate-containing ore is combined with an acid to form an acidic slurry and the acidic slurry is processed to form an acidic stream. The method includes providing a scale inhibitor including an inorganic phosphate. The method further includes combining the scale inhibitor and at least one of the phosphate-containing ore, the acidic slurry, and the acidic stream, to reduce the formation of scale. A system for phosphoric acid production exhibiting a reduced formation of scale is also provided herein. The system includes a substrate having a surface in contact with at least one of the phosphate-containing ore, the acidic slurry formed from the phosphate-containing ore and the acid, and the acidic stream formed from the acidic slurry. The system including the scale inhibitor exhibits a reduced formation of scale on the surface.
C01B 25/222 - Preparation by reacting phosphate containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
C01B 25/22 - Preparation by reacting phosphate containing material with an acid, e.g. wet process
96.
Antifoam formulations for the thermal desalination process of water
A process is disclosed for making paper having improved filler retention and opacity. The process includes the step of adding Additive A and Additive B to a slurry in a wet end of a paper machine wherein the slurry comprises pulp and a filler. Additive A is a wet strength agent. Additive B is an anionic polymer having a charge density from about −3000 to about −7000 ueq/g on a dry basis when measured in a buffer having a pH of about 6. Additive B also has a weight average molecular weight of from about 150,000 to about 1,000,000, Daltons.
D21H 27/26 - Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
A method for forming a solution of ammonium carbamate is provided herein. The method includes, but is not limited to, providing a reactor comprising a solution of ammonia. The method further includes, but is not limited to, feeding carbon dioxide through the solution of ammonia to form a mixture. The method further includes, but is not limited to, combining a solution of sodium hydroxide and the mixture to form the ammonium carbamate.
C07C 269/04 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups
C07C 271/02 - Carbamic acidsSalts of carbamic acids
B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
A method of measuring hydrophobic contaminants in a pulp slurry or a papermaking system includes the steps of providing an aqueous paper mill sample, filtering the aqueous paper mill sample to produce a filtrate comprising particles, and collecting an image of the particles in a measured volume of the filtrate. The method also includes the steps of analyzing the image to determine a size and morphology of the particles in the measured volume of filtrate, identifying spherical particles having a size of from about 1 micron to about 20 microns in the measured volume of filtrate, and quantifying a number of the spherical particles having the size of from about 1 micron to about 20 microns in the measured volume of filtrate. This method is useful for papermakers for deposition diagnostics, prevention, and contaminant control treatment optimization.
The present invention relates to a method for producing a polyacrylamide solution having increased viscosity. In particular, the present invention is related to the separation of a biocatalyst from an aqueous acrylamide solution prepared utilizing the biocatalyst prior to polymerization of the aqueous acrylamide solution to polyacrylamide. A polyacrylamide solution having increased viscosity is well suited to be used in tertiary oil recovery. Accordingly, the present application provides means and methods to crucially improve the quality of polyacrylamide solutions for use in tertiary oil recovery.
