Water Dnrm Containing Patents (Class 524/608)
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Patent number: 6881791Abstract: A curable, water-based coating composition comprising a reaction product of: a copolymer comprising a free-radical polymerization product of: a first block comprising a reaction product of: a plurality of ethylenically unsaturated monomers, and a vinyl aromatic hydrocarbon monomer, wherein at least one monomer of the plurality of ethylenically unsaturated monomers includes a functional group that can react with a water-dispersible cross-linking agent, and at least one monomer of the plurality of ethylenically unsaturated monomers is present in an amount such that it can render the copolymer water dispersible, and a second block comprising a reaction product of at least one ethylenically unsaturated monomer, wherein at least a portion of which are non-functional, and a water-dispersible cross-linking agent, wherein the water-based copolymer is free of salt structures.Type: GrantFiled: June 5, 2003Date of Patent: April 19, 2005Assignee: BASF CorporationInventors: Swaminathan Ramesh, Paul Harris, Wolfgang Bremser, Walter H. Ohrbom
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Patent number: 6878800Abstract: Process for providing a binder for mineral fibers, comprising the steps of: mixing together under reactive conditions an amine and an anhydride whereby water is added thereto, once substantially all the anhydride is dissolved and/or reacted in the amine.Type: GrantFiled: July 3, 2001Date of Patent: April 12, 2005Assignee: Rockwool International A/SInventors: Thor Husemoen, Erling Lennart Hansen, Povl Nissen
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Patent number: 6864349Abstract: Polymerized fatty acid-based polyamides may be combined with low polarity and high polarity co-solvents to produce homogeneous water-in-oil emulsions. These emulsions have the appearance of white or translucent creams, with stiffnessranging from soft and greasy, to hard and able to support weight. These emulsions are stable in the presence or absence of surfactant, and are formed easily by mixing components with heat and then cooling. These emulsions are useful in applications favoring an oil base, such as skin creams and cosmetics with emulsions of low stiffness, and car polish with emulsions of greater stiffness.Type: GrantFiled: December 13, 2002Date of Patent: March 8, 2005Assignee: Arizona Chemical CompanyInventors: Mark S. Pavlin, Richard A. O'Brien
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Patent number: 6828413Abstract: The invention relates to a process for the preparation of a polyamide comprising at least a step in which a composition that comprises at least (a) a primary aminocarbonamide and (b) an aminocarboxylic acid and/or a lactam is polymerised, said composition comprising at least (a) 10-90 wt. % primary aminocarbonamide; (b) 10-90 wt. % aminocarboxylic acid and/or lactam; (c) 0-4 wt. % water; the amounts being relative to the sum of the compounds (a+b+c). Preferably the sum of the compounds (a+b+c) is at least 75 wt. % of the total composition, more preferably 85 wt. %, most preferably 90 wt. %. The polyamide obtained with the process has a &eegr;rel of more than 2.2. The process is eminently suitable for the preparation of polyamide-6 (polycapronamide) from a composition comprising 6-aminocapronamide, 6-aminocaproic acid and/or &egr;-caprolactam. This composition is preferably obtained via the reductive amination of a 5-formylyalerate ester, preferably 5-formylmethylvalerate in water.Type: GrantFiled: June 24, 2002Date of Patent: December 7, 2004Assignee: OSM IP Asseta, B.V.Inventors: Cornelis E. Koning, Rudy Rulkens, Nicolaas F. Haasen, Albert A. Van Geenen
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Patent number: 6774205Abstract: A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.Type: GrantFiled: December 26, 2002Date of Patent: August 10, 2004Assignee: BASF AktiengesellschaftInventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
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Patent number: 6743855Abstract: A polyester of general formula 1 RO&Brketopenst;(A)(B)&Brketclosest;nCox 1 and its use as Association Thickener in aqueous media such as paints and inks; wherein R is hydrogen or a polymerization terminating group; A is a residue of a poly-C2-6-alkyleneglycol containing not less than 80% by weight polyethyleneglycol such as polyethyleneglycol with number average MW from 200 to 35,000; B is the residue of C4-50-alk(en)yl succinic acid such as C14-alkylsuccinic acid; X is hydroxy, a group ROA—, a group —OR1, —NHR1 or —O− M+, R1 is C1-18-alk(en)yl; M+ is a metal cation, and n is from 2 to 100.Type: GrantFiled: April 26, 2002Date of Patent: June 1, 2004Assignee: Avecia LimitedInventors: Dean Thetford, Stuart Barnett
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Patent number: 6706823Abstract: A conductive polymer gel composition including a copolymer with alkenyl monomer units and maleimide monomer units, a crosslinking agent, and an electrolyte solution. The conductive polymer has a current resistance less than or equal to 10−4 ohms and can be used to provide electrolyte cells.Type: GrantFiled: December 31, 2001Date of Patent: March 16, 2004Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, James E. Hall
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Publication number: 20040034164Abstract: An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of the carboxylic acid groups of the copolymer (P) in the dispersion being present in triethanolamine-neutralized form. The aqueous binder can be used in aqueous coating materials, which can be used to coat a substrate.Type: ApplicationFiled: August 13, 2003Publication date: February 19, 2004Inventors: Martin Melchiors, Ulrich Freudenberg, Robert Reyer, Raul Pires, Sandra Grosskopf
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Patent number: 6677427Abstract: A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic reaction product as creping adhesives and wet strength resins to make cellulose products.Type: GrantFiled: June 13, 2000Date of Patent: January 13, 2004Assignee: Hercules IncorporatedInventors: Huai N. Cheng, Qu-Ming Gu, William W. Maslanka
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Patent number: 6667384Abstract: The present invention contemplates poly(aminoamide) pre-polymers, polyamide polymers, a multi-step process for the synthesis of these pre-polymers and polymers using acrylates and at least one monomer containing at least two primary amines, and the resins resulting from the reaction of the polymers with an epihalohydrin. These resins may be used as wet strength resins and creping aids in the papermaking industry as well as surface additives for wool.Type: GrantFiled: December 27, 2001Date of Patent: December 23, 2003Assignee: Hercules IncorporatedInventors: Qu-Ming Gu, Armin Michel, Huai Nan Cheng, William W. Maslanka, Ronald R. Staib
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Patent number: 6657003Abstract: A cell adhesion solution of a cross-linked polymer for substrates includes an amino acid polymer, a buffered cross-linking agent, and deionized water (DI H2O). In one example, the amino acid polymer is selected from a neutral or basic amino acid, such as poly l-lysine or poly l-arginine. In another example, the amino acid polymer includes poly l-lsine. In another example, the amino acid polymer includes poly l-lsine of molecular weight of 100,000 or higher. The cross-linking agent can be selected from an aldehyde functional group, a buffered formaldehyde solution or a 10% neutral buffered formalin solution.Type: GrantFiled: August 7, 2001Date of Patent: December 2, 2003Assignee: Tripath Imaging, Inc.Inventor: William Alan Fox
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Patent number: 6653381Abstract: Novel compounds derived from traditional semi- drying and non-drying oils featuring internally plasticizing and crosslinkable properties are disclosed and claimed. Preferred embodiments include acrylate or methacrylate esters of hydroxy long-chain olefinic compounds derived from castor oil or lesquerella oil. A process for the preparation of the novel compounds is also disclosed, which involves esterification reaction of ethylenically unsaturated carboxylic acids or its derivatives with substituted hydroxy long-chain olefinic compounds. These compounds are suitable for forming latices, which form films at low minimum film forming temperatures (MFT) ranging from −5 to 10 ° C. and cure to above ambient glass transition (Tg polymers without the use of traditional organic cosolvents which contribute to environmental pollution via volatile organic compounds (VOCs) emissions. These latices are therefore useful in waterborne coatings, contact and pressure sensitive adhesives, and inks.Type: GrantFiled: April 10, 2001Date of Patent: November 25, 2003Assignee: University of Southern MississippiInventors: Shelby Freland Thames, Kamlesh Gopichand Panjnani, Rajan Hariharan, Zhiyu Wang
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Patent number: 6627700Abstract: Aqueous dispersion of an acrylate-modified alkyd resin, preparable in the presence of at least one water-miscible diol by (1) dispersing in water at least one alkyd resin containing pendant and/or terminal allyloxy groups, (2) graft copolymerizing a mixture of methacrylic acid and at least one further, carboxyl-free olefinically unsaturated monomer in dispersion 1, and (3) once or n times graft copolymerising (3.1) at least one olefinically unsaturated monomer which is free from acid groups and/or (3.2) at least one mixture of at least one olefinically unsaturated monomer which contains acid groups and at least one olefinically unsaturated monomer which is free from acid groups, in dispersion 2 or 2 to n−1, with the proviso that in step (3) or (n) of the process, acid groups are incorporated in a total amount to not more than 90 mol % of the amount of acid groups incorporated in step (2) of the process.Type: GrantFiled: August 21, 2002Date of Patent: September 30, 2003Assignee: BASF Coatings AGInventors: Vijay Kadambande, Heinz-Peter Rink
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Patent number: 6599972Abstract: Novel latex or emulsion compositions containing internally plasticizing and crosslinkable monomers derived from traditional semi-drying or non-drying oils are disclosed and claimed. The monomers are ethylenically unsaturated derivatives of long-chain olefinic compounds. Preferred embodiments include latex formed from acrylate or methacrylate esters of fatty alcohols. A process for the synthesis of the latex composition is also disclosed, which involves (a) polymerization of the ethylenically unsaturated derivatives of a long-chain olefinic compound in an aqueous phase with at least one other copolymerizable monomer; and (b) blending of so formed polymer with at least one drier and a surfactant to form the novel latex or emulsion compositions. These compositions form films at low minimum film forming temperatures (MFT) ranging from −5 to 10° C.Type: GrantFiled: January 12, 2001Date of Patent: July 29, 2003Assignee: University of Southern MississippiInventors: Shelby Freland Thames, Kamlesh Gopichand Panjnani, Olan Stanley Fruchey
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Patent number: 6554961Abstract: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD.Type: GrantFiled: June 12, 2000Date of Patent: April 29, 2003Assignee: Hercules IncorporatedInventors: Richard James Riehle, Anthony J. Allen, Michaela Hofbauer, Alfred Jacques Haandrikman, Ronald Busink, Mark T. Crisp, John James Hoglen, Huai Nan Cheng, Francis J. Carlin, Jr., John Arthur Lapre, Harold Jabloner
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Publication number: 20030065089Abstract: The invention describes the use in a formulation for floor adhesives of an aqueous dispersion containing from 5 to 70% by weight of at least one polymer having a glass transition temperature below 0° C. and carrying a ureido functional group.Type: ApplicationFiled: October 4, 2002Publication date: April 3, 2003Inventors: Isabelle Betremieux, Christophe Verge, Karine Loyen, Christian Laurichesse
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Patent number: 6492445Abstract: Antibacterial CASE materials comprising a latex comprising polymer particles and a surfactant component. Also disclosed are components and methods for forming such materials.Type: GrantFiled: June 5, 2001Date of Patent: December 10, 2002Assignee: Stepan CompanyInventors: Adnan Siddiqui, Alfred K. Schultz
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Patent number: 6479581Abstract: An aqueous-based composition comprising an aqueous solution of the product formed of the combination of a polyamide-amic acid and a triamine, preferably wherein the polyamide-amic acid is prepared from trimellitic acid halide or its equivalent and an aromatic diamine comprising 4,4′-methylenedianiline.Type: GrantFiled: March 7, 2000Date of Patent: November 12, 2002Assignee: Solvay Advanced Polymers, LLCInventors: Daniel J. Ireland, Jan G. Nel, Robert G. Keske
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Publication number: 20020147269Abstract: The present invention is directed to an aqueous dispersion of a polyester salt and polymeric vehicles which include the aqueous dispersions of a polyester salt. The polymeric vehicle is particularly effective for providing coating binders in cured primer coatings. The primer coating compositions are useful for multilayer paint coating films which have at least two layers of paint film including the cured primer coating composition film. The use of the primer polymeric vehicles of the present invention in conjunction with one or more additional overlaying top coating film layers provide a multiple layer coatings having improved adhesion and chip resistance.Type: ApplicationFiled: September 14, 2001Publication date: October 10, 2002Inventors: Gary Eugene Spilman, Michael Charles Knight, Lisa Kay Kemp, Joseph Leo Nothnagel
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Patent number: 6455631Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula wherein the terminal, modified hydrazide groups are present in an amount of 1 to 25% by weight [calculated as C(O)—NH—NH—C(O), MW 84], based on the weight of the polyurethanes, and wherein X represents OR′ or NHR′, R represents the residue obtained by removing the isocyanate groups from an NCO prepolymer, R′ represents a group which is inert to Isocyanate groups under the conditions used to form the polyurethane of in formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms, wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, m is 0 or 1 and n is 2 to 4.Type: GrantFiled: December 1, 2000Date of Patent: September 24, 2002Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
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Publication number: 20020103292Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula 1Type: ApplicationFiled: December 1, 2000Publication date: August 1, 2002Inventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
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Patent number: 6399715Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.Type: GrantFiled: March 5, 2001Date of Patent: June 4, 2002Assignee: Donlar CorporationInventors: Grigory Ya. Mazo, Robert J. Ross, James F. Kneller, Jacob Mazo
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Patent number: 6388002Abstract: An aqueous composition suitable for coating a substrate is described. The composition comprises a reaction product of (i) at least one carboxylic acid containing from 3 to 22 carbon atoms; and (ii) at least one unsubstituted or substituted aliphatic amine or polyfunctional aromatic amine, containing from 2 to 25 carbon atoms; (iii) a complex crosslinking agent of a metal from groups Ia, IIa, IIIa or IVa of the first and second rows of the transition metals from the Periodic Table of Elements; (iv) a resin or oil, the weight ratio of the resin or oil to the sum of (i), (ii) and (iii) being at least 2.5:1; and (v) a thickener, a continuous dry layer obtained by applying the composition to Western Red Cedar providing a contact angle with water not exceeding 80°.Type: GrantFiled: September 11, 2000Date of Patent: May 14, 2002Assignee: Rhodia LimitedInventors: Gary Baker, John William Prince
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Publication number: 20020040092Abstract: Disclosed are antibacterial CASE materials comprising a latex comprising polymer particles and a surfactant component. Also disclosed are components and methods for forming such materials.Type: ApplicationFiled: June 5, 2001Publication date: April 4, 2002Applicant: Stepan CompanyInventors: Adnan Siddiqui, Alfred Schultz
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Patent number: 6362359Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer, X represents OR′ or NHR′ and R′ represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, and n is 2 to 6.Type: GrantFiled: December 1, 2000Date of Patent: March 26, 2002Assignee: Bayer CorporationInventors: Sze-Ming Lee, Karen M. Henderson, Patricia B. Jacobs, Robert A. Sylvester, Douglas A. Wicks
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Patent number: 6342580Abstract: A process for obtaining aminopolyamide-epichlorohydrin resins with a 1,3-dichloro-2-propanol content which is undetectable by ordinary means of vapor-phase chromatography. The process consists of passing the products resulting from the successive condensation of aminopolyamides and epichlorohydrin through two columns of activated carbon. In this way, aqueous resins are obtained which are free of toxic products, and which are particularly valuable as wet strength additives in the manufacture of papers for medical, cosmetic or food contact uses.Type: GrantFiled: February 2, 2000Date of Patent: January 29, 2002Assignee: AtofinaInventors: Henri Laurent, Thierry Dreyfus, Chantal Poulet, Serge Quillet
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Patent number: 6280571Abstract: Composition comprising at least one water soluble polymer, such as polyamidoamine-epichlorohydrin resin, polyamine-epichlorohydrin resin, polyvinyl alcohol, etc. and at least one stabilizer, such as hypophosphorous acid, phosphorous acid, hypodiphosphoric acid, etc. and salts thereof, suitable as creping adhesive for paper.Type: GrantFiled: August 17, 1998Date of Patent: August 28, 2001Assignee: Hercules IncorporatedInventor: Anthony John Allen
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Publication number: 20010012882Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.Type: ApplicationFiled: March 5, 2001Publication date: August 9, 2001Applicant: Donlar CorporationInventors: Grigory Ya. Mazo, Robert J. Ross, James F. Kneller, Jacob Mazo
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Patent number: 6242526Abstract: Antimicrobial coating, adhesive, sealant and elastomeric materials comprising a latex containing polymer particles and a primary surfactant component where the particles are formed by the reaction of an ethylenically unsaturated monomer and a polymerizable antibacterial quaternary ammonium compound. The primary surfactant is an anionic surfactant or nonionic surfactant, and the polymer particles comprise at least one monomer unit and at least one surface active agent unit. The monomer unit is derived from an ethylenically unsaturated monomer and the surface active agent unit is derived from a polymerizable antibacterial quaternary ammonium compound.Type: GrantFiled: July 28, 1998Date of Patent: June 5, 2001Assignee: Stepan CompanyInventors: Adnan Siddiqui, Alfred K. Schultz
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Patent number: 6222006Abstract: An aqueous formulation of a high solid content fully functional thermosettable wet strength resin designed for use in the manufacture of paper products is disclosed. The wet strength resin is the product of reaction of an epihalohydrin and an end-capped polyaminamide polymer. The thermosetting wet strength resins are useful in the manufacture of improved absorbent paper products such as bathroom tissues, facial tissues, napkins, towels, and paperboard products such as dairy cartons and bag paper.Type: GrantFiled: August 5, 1998Date of Patent: April 24, 2001Assignee: Fort James CorporationInventors: Bruce Jerome Kokko, Elroy Wayne Post
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Patent number: 6203872Abstract: Proposed is a process for sealing the seams of a water vapour permeable lining comprising a laminate of a textile material and a waterproof, but water vapour permeable film in which sections of said laminate with the textile sides facing one another are bonded together along the contours of the material to be lined, after which the lining is dipped in a solution of a hydrophilic polymer in an organic solvent which acts as a swelling agent for the waterproof film of the laminate, followed by evaporation of the solvent. The water vapour permeable film in the laminate preferably is made of a hydrophilic copolyetherester or copolyetheramide, while the hydrophilic polymer soluble in an organic solvent preferably is a copolyetherester.Type: GrantFiled: July 23, 1998Date of Patent: March 20, 2001Assignee: Akzo Nobel NVInventor: Dennis W Hannon
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Patent number: 6197897Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.Type: GrantFiled: July 20, 1999Date of Patent: March 6, 2001Assignee: Donlar CorporationInventors: Grigory Ya. Mazo, Robert J. Ross, James F. Kneller, Jacob Mazo
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Patent number: 6174948Abstract: Novel latex or emulsion compositions containing internally plasticizing and crosslinkable monomers derived from traditional semi-drying or non-drying oils are disclosed and claimed. The monomers are ethylenically unsaturated derivatives of long-chain olefinic compounds. Preferred embodiments include latex formed from acrylate or methacrylate esters of fatty alcohols. A process for the synthesis of the latex composition is also disclosed, which involves (a) polymerization of the ethylenically unsaturated derivatives of a long-chain olefinic compound in an aqueous phase with at least one other copolymerizable monomer; and (b) blending of so formed polymer with at least one drier and a surfactant to form the novel latex or emulsion compositions. These compositions form films at low minimum film forming temperatures (MFT) ranging from −5 to 10° C.Type: GrantFiled: December 24, 1996Date of Patent: January 16, 2001Assignee: The University of Southern MississippiInventors: Shelby Freland Thames, Kamlesh Gopichand Panjnani, Olan Stanley Fruchey
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Patent number: 6150457Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6.The present invention also relates to one-component, thermoset coating compositions containing the compounds of formula I and a cross-linking component that is reactive with these compounds. Finally, the present invention relates coatings, sealants and adhesives prepared from these thermoset compositions.Type: GrantFiled: November 23, 1998Date of Patent: November 21, 2000Assignees: Bayer Corporation, Bayer AktiengesellscaftInventors: Sze-Ming Lee, Douglas A. Wicks, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson
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Patent number: 6133401Abstract: Polyimide copolymers were obtained containing 1,3-bis(3-aminophenoxy)benzene (APB) and other diamines and dianhydrides and terminating with the appropriate amount of reactive endcapper. The reactive endcappers studied include but should not be limited to 4-phenylethynyl phthalic anhydride (PEPA), 3-aminophenoxy-4'-phenylethynylbenzophenone (3-APEB), maleic anhydride (MA) and nadic anhydride (5-norbornene-2,3-dicarboxylic anhydride, NA). Homopolymers containing only other diamines and dianhydrides which are not processable under conditions described previously can be made processable by incorporating various amounts of APB, depending on the chemical structures of the diamines and dianhydrides used. By simply changing the ratio of APB to the other diamine in the polyimide backbone, a material with a unique combination of solubility, Tg, Tm, melt viscosity, toughness and elevated temperature mechanical properties can be prepared.Type: GrantFiled: June 29, 1999Date of Patent: October 17, 2000Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Brian J. Jensen
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Patent number: 6103861Abstract: An ionic thermosettable resin useful for imparting wet and dry strength to paper is made by: (a) providing a copolymer comprising monomer units derived by copolymerization of acrylamide or alkyl-substituted acrylamide and diallylamine or an acid salt thereof; and (b) reacting the copolymer with epihalohydrin or epihalohydrin equivalent and dialdehyde. Paper products made using the resin are more easily repulped than paper products made with conventional wet strength resins.Type: GrantFiled: December 19, 1997Date of Patent: August 15, 2000Assignee: Hercules IncorporatedInventors: Ronald Richard Staib, Joseph Raymond Fanning, William Walter Maslanka
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Patent number: 6063862Abstract: Disclosed is a process for producing a glass-polyamide composite comprising bringing into contact or mixing (A) an aqueous solution containing water, water glass, and a diamine and (B) an organic solution containing an organic solvent and a dicarboxylic acid halide to carry out polyamide formation and polycondensation of water glass simultaneously.Type: GrantFiled: March 10, 1999Date of Patent: May 16, 2000Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Satoshi Idemura, Kazutoshi Haraguchi
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Patent number: 6013757Abstract: A substrate is coated or impregnated with a composition comprising an a) epoxy resin, b) a liquid amine-terminated polyamide curing agent prepared by condensing an aminoalkylpiperazine and a long-chain dicarboxylic acid, ester or chloride, and c) water.Type: GrantFiled: November 25, 1997Date of Patent: January 11, 2000Assignee: Shell Oil CompanyInventors: Larry Steven Corley, Derek Scott Kincaid, Glenda Carole Young
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Patent number: 6008291Abstract: Viscosity-stabilized aqueous polyester dispersions comprising an acid-functional polyester resin a, neutralizing agent b for the polyester resin a, the amount of neutralizing agent being sufficient to convert from 10 to 200% of the amount of substance of acid groups in the polyester resin a into salt groups by means of the amount of neutralizing agents added, the neutralizing agents being selected from ammonia and organic amines and also alkali metal hydroxides and alkaline earth metal hydroxides; if desired, an organic auxiliary solvent, silica in an amount such that the mass of SiO.sub.2 is from 0.1 to 50% of the mass of the polyester resin, and water. The dispersions are useful in coating compositions.Type: GrantFiled: November 13, 1998Date of Patent: December 28, 1999Assignee: Vianova Resins AGInventors: Manfred Weinberger, Johann Billiani
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Patent number: 6001910Abstract: A remoistenable hot melt adhesive composition comprising (i) 25 to 80% by weight of a sulfonated polyester;(ii) 3 to 40% by weight of an anionic or cationic plasticizer;(iii) 0 to 40% by weight of a polar tackifier;(iv) 0 to 3% by weight of an antioxidant; and(v) 10 to 35% by weight of a polar wax; and(vi) optionally 0 to 30% nonionic plasticizer, wherein the total of (i)-(vi) to equal 100% by weight.Type: GrantFiled: April 9, 1999Date of Patent: December 14, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventors: Mitchell J. Blumenthal, Charles W. Paul, Matthew L. Sharak
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Patent number: 5998508Abstract: An epoxy resin composition containing a) an epoxy resin, b) a liquid amine terminated polyamine curing agent prepared by condensing an aminoalkylpiperazine and a dicarboxylic acid, and (c) water. An aqueous dispersion of the amine terminated polyamine curing agent used in this invention is useful as a curing agent for water borne applications.Type: GrantFiled: November 25, 1997Date of Patent: December 7, 1999Assignee: Shell Oil CompanyInventors: Larry Steven Corley, Derek Scott Kincaid, Glenda Carole Young
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Patent number: 5994494Abstract: An antisettling agent for aqueous paints giving excellent settling-preventing properties to aqueous paints is provided. The antisettling agent is produced by the following process: A polyamide, which is obtained by reacting a primary diamine having 2 to 12 carbon atoms with, in an amount excess to the diamine, a dimer dicarboxylic acid obtained by polymerizing an unsaturated fatty acid (common name: dimer acid) or a mixture of a dimer acid with another dicarboxylic acid having 3 to 21 carbon atoms and/or a monocarboxylic acid having 2 to 22 carbon atoms, is neutralized with a neutralizing base, and then the neutralized polyamide is dispersed in a medium mainly composed of water.Type: GrantFiled: May 8, 1998Date of Patent: November 30, 1999Assignee: Kusumoto Chemicals, Ltd.Inventor: Toshimitsu Wakui
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Patent number: 5989697Abstract: Claimed is a copolyether amide having a melting point in the range of 180.degree. to 260.degree. C., incorporating at least 10 wt. % and not more than 30 wt. % of ethylene oxide groups, and composed of 30 to 60 wt. % of polyamide segments and 70 to 40 wt. % of segments derived from a (cyclo)aliphatic or aromatic dicarboxylic acid or a dimeric fatty acid and a polyoxyalkylene diamine derived from a polyoxyalkylene group having a molecular weight of 600 to 6000 and an atomic ratio of carbon to oxygen of 2.0 to 4.3. Also claimed is a non-porous, waterproof film having a water vapor permeability of at least 1000 g/m.sup.2 day determined at 30.degree. C. and 50% RH in accordance with ASTM E96-66 which is based on a the use of these films in rainwear, shoes, tents, chairs, as mattress covers and underslating, for medical purpose garments, and for the manufacture of dressings.Type: GrantFiled: November 24, 1997Date of Patent: November 23, 1999Assignee: Akzo Nobel, NVInventor: Bert Gebben
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Patent number: 5985988Abstract: A process for coloration of a substrate comprising printing an ink onto the substrate using a thermal ink jet printer, characterised in that the ink comprises water and a water-dissipatable polyester dyed using a disperse dye or solvent soluble dye. An ink comprising a water-dissipatable polyester dyed using a disperse dye or solvent dye and an aqueous medium.Type: GrantFiled: February 10, 1998Date of Patent: November 16, 1999Assignee: Zeneca LimitedInventor: David John Hodge
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Patent number: 5962629Abstract: An epoxy resin composition containing a) an epoxy resin, b) a liquid amine terminated polyamine curing agent prepared by condensing an aminoalkylpiperazine and a dicarboxylic acid, and (c) water. An aqueous dispersion of the amine terminated polyamine curing agent used in this invention is useful as a curing agent for water borne applications.Type: GrantFiled: November 16, 1995Date of Patent: October 5, 1999Assignee: Shell Oil CompanyInventors: Larry Steven Corley, Derek Scott Kincaid, Glenda Carole Young
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Patent number: 5922801Abstract: A method for binding ceramic materials in aqueous media is disclosed. The method utilizes water-soluble polyamides prepared by condensation polymerization for binding various classes of ceramic materials.Type: GrantFiled: December 3, 1997Date of Patent: July 13, 1999Assignee: Nalco Chemical CompanyInventors: Kristy M. Bailey, Christopher P. Howland, Kevin J. Moeggenborg
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Patent number: 5914374Abstract: A urethanized polyester is claimed which is suitable as an additive for aqueous coating systems, which is obtainable by, in a first reaction stage (A), subjecting(a) from 10 to 45 mol-% of one or more diols,(b) from 5 to 50 mol-% of one or more polyols having at least 3 OH groups, and(c) from 35 to 47 mol-% of one or more aromatic, aliphatic or cycloaliphatic polycarboxylic acids and/or reactive derivatives thereof to a polycondensation reaction in a manner known per se until the reaction mixture has an acid number of from 1 to 10, and, in a reaction stage (B), reacting the resulting reaction product in a manner known per se with an organic polyisocyanate. The urethanized polyester is outstandingly suitable as an additive for aqueous coating materials in order to improve the rheological stabilization of coating materials.Type: GrantFiled: February 20, 1997Date of Patent: June 22, 1999Assignee: BASF Coatings AGInventors: Vera Block, Harald Borgholte, Uwe Meisenburg, Heinz-Peter Rink, Ludwig Moorkamp
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Patent number: 5886135Abstract: A process is provided for preparing a dispersion of a polyamide in water, said process comprising:dissolving a polyamide having an amine value of greater than about 2 in an organic solvent to form a solution of said polyamide in said solvent, said polyamide and said solvent being at a temperature below the softening point of said polyamide during said dissolving, said solution further comprising a surfactant and an inorganic alkaline material,adding sufficient water containing an acid to said solution with mixing to form an oil-in-water dispersion, the temperature of said solution and said water being below the softening point of said polyamide during said adding, the amount of said acid being sufficient to neutralize a portion of said inorganic alkaline material, but insufficient to coagulate said polyamide from the resulting oil-in-water dispersion, andremoving at least a major amount of said organic solvent from said oil-in-water dispersion.Type: GrantFiled: May 8, 1997Date of Patent: March 23, 1999Assignee: Henkel CorporationInventors: Stephen A. Fischer, Michael S. Wiggins, Chase J. Boudreaux
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Patent number: 5883172Abstract: A composition of matter useful as a hotmelt adhesive is provided. The composition is comprised of a polyamide based on dimerized fatty acid and having an amine value higher by at least two units than the acid value of said polyamide and a filler comprised of a carbonate. The filler is preferably comprised of fine particles of calcium carbonate. The adhesive is particularly useful for bonding metals, e.g. to plastics and the bonding of cables with multilayer sheaths, e.g. in optical cables and power cables.Type: GrantFiled: September 29, 1997Date of Patent: March 16, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Reimar Heucher, Siegfried Kopannia, Ulrike Maassen
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Patent number: 5869567Abstract: A polyester resin aqueous dispersion which provides a coating film having excellent processability, water resistance, corrosion resistance, chemical resistance, weather resistance and adhesion to various substrates, and which also has markedly excellent storage stability even at a high solids concentration. The polyester resin aqueous dispersion substantially comprises a specific polyester resin, a basic compound, an amphipathic organic solvent capable of plasticizing the polyester resin, and a compound having a protective colloid action. Furthermore, fine particles of the polyester resin are homogeneously dispersed in an aqueous medium and in a specific dispersed state.Type: GrantFiled: March 7, 1997Date of Patent: February 9, 1999Assignee: Unitika Ltd.Inventors: Eiji Fujita, Tetsuya Miyagawa, Kenjin Shiba, Jinhua Xu, Kiyomi Hata