Two Or More Carboxylic Acids Or Derivatives Patents (Class 524/833)
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Patent number: 6794448Abstract: Subjects of the present invention are to provide resin particles having high ability and suitable for various purposes and to provide preparation method thereof. This invention provides resin particles each of which is formed by two curved surfaces or by one curved surface and one plane surface, has a boundary line between these two surfaces and satisfies the relationships: 0.1 &mgr;m≦D≦500 &mgr;m (I) 0.05≦d/D≦0.8 (II) wherein D is particle diameter in horizontal direction and d is the maximum height in longitudinal direction in a side view in which the boundary line is placed in horizontal direction.Type: GrantFiled: September 20, 2002Date of Patent: September 21, 2004Assignee: Sekisui Plastics Co., Ltd.Inventor: Itaru Sakuma
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Patent number: 6790907Abstract: A ceramic slurry composition is obtained by mixing a ceramic raw material powder, a water-soluble acrylic binder and water, wherein the water-soluble acrylic binder has a weight average molecular weight of from about 10,000 to 500,000, and has an inertial square radius of not more than about 100 nm in water. The ceramic slurry composition can have a low viscosity as well as good dispersion characteristics for the ceramic raw material powder, good flow characteristics and good form characteristics, and can provide ceramic green sheets having a high density and excellent drying characteristics, by decreasing the solution viscosity, without decreasing the molecular weight of the water-soluble acrylic binder containing a hydrophobic component.Type: GrantFiled: June 28, 2001Date of Patent: September 14, 2004Assignee: Murata Manufacturing Co. Ltd.Inventors: Masachika Takata, Satoru Tanaka, Makoto Miyazaki
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Patent number: 6777459Abstract: The present invention relates to a novel photoinitiator system comprising one or more acylphosphine oxide photoinitiators and one or more lightfast red, blue or violet organic pigments. Low yellow color formation results upon curing ethylenically unsaturated compounds with the new photoinitiator system. Particular applications include clear and white coatings, screen inks, gel coats, powder coatings, composites, adhesives and lenses.Type: GrantFiled: October 3, 2002Date of Patent: August 17, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Walid Al-Akhdar, David Bramer, Eugene Valentine Sitzmann, Jr., Donald A. Wostratzky
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Patent number: 6770710Abstract: The process comprises: (1) the preparation of a mixture comprising at least one organic monomer Z with a C═C group, polymerizable by a radical process, at least one organic photochromic compound, at least one surfactant, water and optionally a polymerization primer; (2) the treatment of the mixture obtained in step (1) in order to form a miniemulsion consisting of an organic phase dispersed in the form of droplets having a diameter of 50 to 500 nm, and preferably 50 to 300 nm, in an aqueous phase; (3) the addition to the miniemulsion of a polymerization primer, if this latter was not introduced in step (1), or of a quantity of primer additional to that added in step (1); (4) the polymerization of the reaction mixture obtained in step (3), and (5) the recovery of the photochromic latex.Type: GrantFiled: November 16, 2001Date of Patent: August 3, 2004Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Anne Robert, Pascale Tardieu, Sylvette Maisonnier, Jean-Paul Cano
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Patent number: 6770711Abstract: A cross-linked acrylic polymer that is highly biocompatible is prepared from a water-soluble acrylic monomer by preparing an aqueous polymerization solution containing an acrylamide monomer and a catalyzing agent; polymerizing the monomer present in the polymerization solution by agitating and heating the polymerization solution. The polymerization is conducted in the presence of gaseous oxygen.Type: GrantFiled: November 7, 2002Date of Patent: August 3, 2004Assignee: Polymekon S.r.l.Inventors: Gerardo Balestrieri, Carmelo Protopapa
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Patent number: 6762269Abstract: A hydrophobe-containing alkali soluble or swellable copolymer thickener comprising an emulsion polymerization product of (A) an ethylenically unsaturated copolymerizable surfactant monomer having a cloud point of from about 65° C. to about 95° C., wherein the surfactant monomer has the formula M(EO)x(BO)zOR1 wherein M is a residue selected from the group consisting of an ethylenically unsaturated carboxylic acid, and an ethylenically unsaturated dicarboxylic acid, EO is an ethylene oxide unit; BO is a butylene oxide unit; x is from 10 to 45; z is from 5 to 35; provided that x+z is from 20 to 45; and R1 is selected from the group consisting of alkyl, alkylene, cycloalkyl, cycloalkylene, and arylalkyl group wherein the alkyl group has 1 to 4 carbon atoms; (B) an &agr;,&bgr;-ethylenically unsaturated monocarboxylic acid monomer; and (C) a nonionic &agr;,&bgr;-ethylenically unsaturated monomer.Type: GrantFiled: August 13, 1998Date of Patent: July 13, 2004Assignee: National Starch and Chemical Investment Holding CorporationInventors: Joseph S. Maxim, Jr., James C. Long, Daniel W. Verstrat
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Patent number: 6746555Abstract: The invention provides low-emission adhesives based on an aqueous, protective-colloid-free polymer dispersion or water-redispersible dispersion powders, obtainable therefrom, of vinyl acetate-ethylene copolymers, obtainable by free-radically initiated emulsion polymerization, in aqueous medium and in the presence of one or more emulsifiers, of a comonomer mixture comprising a) from 5 to 50% by weight of ethylene, b) from 20 to 80% by weight of at least one vinyl ester from the group of vinyl esters of unbranched or branched carboxylic acids having 1 to 9 carbon atoms whose homopolymers have a glass transition temperature Tg >0° C., c) from 5 to 70% by weight of at least one vinyl ester from the group of vinyl esters of branched carboxylic acids having 8 to 13 carbon atoms whose homopolymers have a glass transition temperature Tg <0° C., d) from 0.Type: GrantFiled: July 8, 2000Date of Patent: June 8, 2004Assignee: Wacker-Chemie GmbHInventors: Holger Künstle, Rudolf Weissgerber
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Patent number: 6743514Abstract: This invention pertains to radiation-curable aqueous compositions comprising a mixture of water-reducible oligomer, monomer, and water-insoluble cationically-modified latex. More particularly, the invention pertains to radiation-curable aqueous compositions that are suitable for use as ink jet printing receptive coatings and in the production of ink jet printable products.Type: GrantFiled: March 15, 2002Date of Patent: June 1, 2004Assignee: MeadWestvaco CorporationInventor: Gamini S. Samaranayake
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Publication number: 20040096685Abstract: The present invention relates to pressure sensitive adhesives based on aqueous latex emulsions processes for their preparation and laminates prepared there from. The pressure sensitive adhesives exhibit excellent adhesion in hot water environments and resistance to water-whitening.Type: ApplicationFiled: May 13, 2003Publication date: May 20, 2004Inventors: Raymond Scoot Harvey, Harvey Joseph Richards, Corlyss J. Richards
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Patent number: 6716912Abstract: The present invention comprises a polymeric binder for water-resistant ink jet inks, wherein the binder has an acid component in the range from about 1 to about 10 wt. % of the polymer, a glass transition temperature in the range from about −20° C. to about 25° C., and an average particle diameter in the range from about 250 to about 400 nm and a particle size distribution such that essentially all the particles have a diameter in the range from 130 to 450 nm. The binder comprises monomers selected from the group consisting of acrylates, methacrylates, styrene, substituted styrene, fluoromethacrylates, vinyl acrylates, vinyl acetates, acrylamides, substituted acrylamides, methacrylamides, substituted methacrylamides, or combinations thereof.Type: GrantFiled: November 30, 2000Date of Patent: April 6, 2004Assignee: Rohm and Haas CompanyInventors: Michael Bennett Freeman, Eric Jon Langenmayr, Thomas Glenn Madle
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Patent number: 6713552Abstract: An aqueous composition suitable for use when dry as a pressure sensitive adhesive including an aqueous emulsion polymer formed by the free radical polymerization of at least one ethylenically unsaturated monomer at a reaction temperature lower than 100° C. in the presence of 20-1500 ppm, based on the total weight of the monomer, of an N-oxyl radical, the polymer having a glass transition temperature (Tg) from −80° C. to 0° C. is provided. Also provided is a method for preparing the emulsion polymer and a method for coating a substrate with an aqueous composition to provide a pressure sensitive adhesive layer on a substrate.Type: GrantFiled: July 20, 2000Date of Patent: March 30, 2004Assignee: Rohm and Haas CompanyInventors: Patricia Marie Lesko, Robert M. Blankenship
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Patent number: 6709716Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.Type: GrantFiled: April 27, 2001Date of Patent: March 23, 2004Assignee: 3M Innovative Properties CompanyInventors: Rosa Uy, Chung I Young
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Patent number: 6683129Abstract: This invention relates to aqueous emulsions comprising a water-dispersible copolymer which is non-dispersible in aqueous solutions containing 0.5% or more of an inorganic salt, comprising acidic ethylenically unsaturated monomers and ethylenically unsaturated monomers. The acidic ethylenically unsaturated monomers and the ethylenically unsaturated monomers are defined herein. The present invention also pertains to emulsion polymerization methods for making the aqueous emulsions with or without a surfactant.Type: GrantFiled: March 31, 2000Date of Patent: January 27, 2004Assignee: National Starch and Chemical Investment Holding CorporationInventor: Michael W. Eknoian
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Patent number: 6646068Abstract: Branched polymers are prepared by mixing together monofunctional vinylic monomer with from 0.3 to 100% w/w of polyfunctional vinylic monomer and from 0.0001 to 50% w/w of chain transfer agent and thereafter reacting the mixture to form a polymer. The resulting branched polymers are soluble and may be used as component of surface coatings and inks as well as molding resins.Type: GrantFiled: December 8, 2000Date of Patent: November 11, 2003Assignee: Lucite International UK LimitedInventors: Michael Stephen Chisholm, Andrew Trevithick Slark, David Sherrington, Nial O'Brien
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Patent number: 6635693Abstract: A process for making composite colorant particles comprising, in order: I) suspending in an aqueous medium, under agitation, finely divided colorant particles to form an aqueous colorant mixture; II) adding to the aqueous colorant mixture an addition polymerization initiator; and III) causing the addition polymerization initiator to form a free radical while continuously introducing continuously to the aqueous colorant mixture a monomer mixture comprising: a) an addition polymerization initiator, and b) at least one ethylenically-unsaturated monomer; thereby forming the composite colorant particles having a colorant phase and a polymer phase.Type: GrantFiled: March 30, 2001Date of Patent: October 21, 2003Assignee: Eastman Kodak CompanyInventors: Xiaoru Wang, Yongcai Wang, Edward Schofield
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Patent number: 6620870Abstract: Pressure-sensitive adhesives comprising an aqueous polymer dispersions wherein the polymer is composed of from 50 to 99.9% by weight of at least one C1-C12 alkyl (meth)acrylate (monomers a) from 0.05 to 20% by weight of at least one vinylaromatic compound (monomers b) from 0.05 to 10% by weight of at least one ethylenically unsaturated hydroxy compound (monomers c) from 0 to 10% by weight of an ethylenically unsaturated acid or an acid anhydride (monomers d) and from 0 to 30% by weight of other ethylenically unsaturated compounds (monomers e) the weight percentages being based on the polymer, and the polymer dispersion comprising an emulsifier consisting to the extent of at least 5% by weight of aromatic carbon atoms (and called aromatic emulsifier for short) or an emulsifier mixture consisting to the extent of at least 10% by weight of an aromatic emulsifier.Type: GrantFiled: November 6, 2001Date of Patent: September 16, 2003Assignee: BASF AktiengesellschaftInventors: Matthias Gerst, Gerhard Auchter, Bernhard Schuler
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Patent number: 6617372Abstract: What is described is a polymeric hydrogel product of a stable, aqueous polymeric composition which composition forms a clear to translucent film upon application to a substrate, and includes, by weight, 5-75% of (a) a water-soluble polymer having (b) in situ-formed, substantially water-insoluble resinous particles of said polymer substantially uniformly dispersed therein, and (c) 25-95% of water, made by irradiating the composition with high energy electron beam or gamma-radiation.Type: GrantFiled: October 23, 2001Date of Patent: September 9, 2003Assignee: ISP Investments Inc.Inventor: Laurence Senak
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Publication number: 20030153676Abstract: The invention pertains to a polymer obtainable from the steps:Type: ApplicationFiled: November 7, 2002Publication date: August 14, 2003Inventors: Richard Hendrikus Gerrit Brinkhuis, Andreas Henricus Johannes Roelofs, Dirk Emiel Paula Mestach, Petrus Johannes Maria David Elfrink, Wincently Lambertus Stanislaw Pilaszek, Hendrik Hermanus Rikus Van Der Horst
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Patent number: 6602951Abstract: The invention provides for the use of non-copolymerizable hydroperoxides of the formula R—O—O—H as regulators in the free-radically initiated polymerization of ethylenically unsaturated monomers, where R is H, a C1-C18-alkyl radical, a C7-C22-aralkyl radical or a saturated or unsaturated carbocyclic or heterocyclic ring having from 3 to 18 carbon atoms, and may be substituted or unsubstituted.Type: GrantFiled: January 29, 2002Date of Patent: August 5, 2003Assignee: Wacker Polymer Systems GmbH & Co. KGInventors: Peter Weiler, Ulf Dietrich, Peter Ball
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Patent number: 6602950Abstract: A hydrophilic, highly swellable hydrogel based on (co)polymerized monomers or based on graft (co)polymers and prepared by a) free-radically (co)polymerizing one-or more hydrophilic monomers or graft (co)polymerizing one or more hydrophilic monomers onto a grafting base, the average degree of neutralization of the acid-functional monomers being from 0 to 40 mol %, b) comminuting the acidic hydrogel, c) neutralizing the acidic hydrogel to an ultimate degree of neutralization of 50-85 mol % by adding a neutralizing agent, d) drying, grinding and sieving the hydrogel particles characterized by a centrifuge retention and a vertical absorption swell height, each having a specified minimum.value, coupled with an extractables content having a specified maximum value or a centrifuge retention and a vertical absorption swell height, each having a specified minimum value and an extractables content having a specified maximum value.Type: GrantFiled: April 6, 2001Date of Patent: August 5, 2003Assignee: BASF AktiengesellschaftInventors: Joachim Dentler, Rüdiger Funk, Norbert Herfert, Mariola Wanior, Friedrich Engelhardt
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Patent number: 6590031Abstract: The present invention relates to pressure sensitive adhesives based on aqueous latex emulsions processes for their preparation and laminates the prepared there from. The pressure sensitive adhesives exhibit excellent adhesion in hot water environments and resistance to water-whitening.Type: GrantFiled: November 13, 2001Date of Patent: July 8, 2003Assignee: Ashland Inc.Inventors: Raymond Scott Harvey, Harvey J. Richards
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Publication number: 20030114587Abstract: A synthetic resin emulsion for use as a main component of a sealer composition for recoating a coating and comprising synthetic resin particles dispersed in water. The synthetic resin emulsion which is produced by copolymerizing (a) 20 to 99.5% by weight of an alkyl (meth)acrylate wherein the content of an alkyl (meth)acrylate, in which the alkyl group has 4 or less carbon atoms, is not less than 50% by weight based on the whole alkyl (meth)acrylate; (b) 0.5 to 10% by weight of an ethylenically unsaturated carboxylic acid; and (c) 0 to 79.5% by weight of a monomer copolymerizable with the monomers (a) and (b), in the presence of an alkyldiphenyl ether disulfonate as an emulsifier. The synthetic resin emulsion has a glass transition temperature (Tg) of 15 to 50° C., and the average particle diameter of the synthetic resin particles dispersed in water is 0.01 to 0.2 &mgr;m.Type: ApplicationFiled: June 27, 2002Publication date: June 19, 2003Inventor: Hideyuki Suzuki
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Patent number: 6565768Abstract: Water-swellable hydrophilic polymers are prepared by neutralization of the acidic hydrogel having a degree of neutralization of 0-40 mol % to an ultimate degree of neutralization of 60-85 mol % by mixing with a neutralizing agent in a mincer comprising a system of screw, rotating blade, restricted flow zone and breaker plate, wherein the mincer has a power output of from 1000 to 6000 Wh/m3 the hydrogel passes through a zone having-an energy dissipation density of from 400 to 800 W/1 of mixing volume the average residence time of the hydrogel in the mincer is from 5 to 30 seconds the breaker plate has an open area of from 20 to 40%.Type: GrantFiled: April 6, 2001Date of Patent: May 20, 2003Assignee: BASF AktiengesellschaftInventors: Joachim Dentler, Norbert Herfert, Rudolf Schliwa, Uwe Stüven, Fritz Engelhardt
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Patent number: 6548596Abstract: A polymer composition comprising an aqueous suspension or dispersion of a water insoluble polymer of ethylenically unsaturated monomers, said polymer having a Tg of at least 35° C. and 25% to 65% by weight units of iso-butyl methacrylate (IBMA) and n-butyl methacrylate (BMA), and 3% to 50% by weight units of at least one acidic monomer. Floor polish compositions comprising said polymer may have improved repeatable high speed burnish response.Type: GrantFiled: July 23, 1998Date of Patent: April 15, 2003Assignee: Rohm and Haas CompanyInventors: Alan Wayne Kohr, Karl John Hartman
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Patent number: 6538062Abstract: A resin composition for an aqueous paint, which comprises (a) a binder composed of different phase structure emulsion particles obtained by multi-stage emulsion polymerization, and (b) a compound having at least two hydrazide groups in its molecule, wherein the different phase structure emulsion particles have an outermost phase formed of an emulsion polymer which is an emulsion polymer of an ethylenic unsaturated monomer, having a glass transition temperature of from −50° C. to 15° C., and the following conditions (1) to (3) are satisfied: (1) the emulsion polymer forming the outermost phase contains from 1 to 25 mass % of an ethylenic unsaturated monomer having a carbonyl group, (2) at least one phase located inside the outermost phase of the different phase structure emulsion particles, is formed of an emulsion polymer of an ethylenic unsaturated monomer, having a glass transition temperature of from 50° C. to 150° C.Type: GrantFiled: June 19, 2001Date of Patent: March 25, 2003Assignee: Dai Nippon Toryo Co., Ltd.Inventors: Shinya Sakaguchi, Atsushi Takamatsu, Hiroharu Sasaki, Kazuyoshi Tsuneta
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Patent number: 6528581Abstract: The quality of a mastic coating system for bituminous substrates is improved through the use of a topcoat composition and/or tiecoat composition comprising a water-insoluble latex polymer. The latex polymer has a Tg of from −25° C. to 20° C. and is prepared from a monomer mixture comprising: (a) at least 20% by weight of at least one hydrophobic monomer selected from the group consisting of (C8 to C24) alkyl (meth)acrylates; (b) 0 or up to 45% by weight of at least one vinyl aromatic monomer; wherein the weight of (a) and (b) together constitute at least 25% by weight of said monomer mix (c) 0 or up to 75% by weight of at least one monomer selected from the group consisting (C1 to C4) alkyl (meth)acrylates; and (d) 0 or up to 5% by weight of at least one monomer selected from acrylic or methacrylic acid; wherein when (b) is not present in the monomer mix the amount of (d) is in the range from 0 or up to less than 3% by weight.Type: GrantFiled: April 16, 1999Date of Patent: March 4, 2003Assignee: Rohm and Haas CompanyInventors: David Goodro Kelly, Huiling Yang, Donald Alfred Winey
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Patent number: 6500492Abstract: The present invention provides for the use of film-forming aqueous formulations comprising in dispersed form at least one crosslinked copolymer P for coating shaped mineral articles and for a method of coating shaped mineral articles, said copolymer P comprising in copolymerized form a) from 80 to 99.89% by weight of at least one monomer selected from esters of acrylic acid with C1-C12-alkanols, esters of methacrylic acid with C1-C8-alkanols, and monovinylaromatics, b) from 0.1 to 19.99% by weight of at least one monomer different from a), and c) from 0.01 to 1.9% by weight of at least one crosslinking monomer selected from esters of acrylic or methacrylic acid with linear or branched C3-C6-alkenols, cyclic C5-C7-alkenols and polycyclic C2-C12-alkenols.Type: GrantFiled: March 28, 2001Date of Patent: December 31, 2002Assignee: BASF AktiengesellschaftInventors: Manfred Schwartz, Bertold Bechert, Harm Wiese, Wolfgang Hümmer
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Publication number: 20020188035Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.Type: ApplicationFiled: April 27, 2001Publication date: December 12, 2002Applicant: 3M Innovative Properties CompanyInventors: Rosa Uy, Chung I Young
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Patent number: 6489387Abstract: Acrylic emulsion PSA polymers which when cast as a film resist water whitening by hot or ambient temperature water are provided, and are formed by copolymerizing a monomer mixture comprising at least one alkyl acrylate ester of an alcohol containing at least four carbon atoms, at least one polar comonomer and at least one partially water soluble comonomer present in an amount of at least about 7% by weight of the monomers. Polymerization is carried out in the presence of at least one nonionic surfactant containing at least about 8 moles of ethylene oxide per mole nonionic surfactant and at least one anionic surfactant containing up to about 10 moles ethylene oxide per mole anionic surfactant. There is added to the product of polymerization at least one base to produce an emulsion having a pH greater than 7 and containing particles having a mean “volume-average” particle diameter of up to about 210 nm as determined by laser light scattering.Type: GrantFiled: March 28, 1997Date of Patent: December 3, 2002Assignee: Avery Dennison CorporationInventors: Prakash Mallya, Xing-Ya Li, Colin C. Smith, George Dilts, Kregg D. Albrecht, Joseph T. Tenhagen, Robert D. Petrasko
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Patent number: 6489397Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.Type: GrantFiled: April 25, 2001Date of Patent: December 3, 2002Assignee: BASF AktiengesellschaftInventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann
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Publication number: 20020165316Abstract: An aqueous composition suitable for use, when dry, as an improved elastomeric coating, caulk, sealant, or pressure sensitive adhesive is provided including a predominantly acrylic aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from −90° C. to 20° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0.5-5%, by weight based on the total weight of said polymer, ethylenically unsaturated carboxylic acid monomer until 90-99.7% of said monomers by weight, based on the total weight of said polymer, has been converted to polymer and subsequently at least half of the remaining monomer is converted to polymer in the presence of 0.1-1.0 wt %, by weight based on the total weight of said polymer, t-amyl hydroperoxide.Type: ApplicationFiled: May 6, 2002Publication date: November 7, 2002Inventor: Robert V. Slone
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Patent number: 6476097Abstract: An essentially solventless pigmented aqueous formulation which comprises: i) at least one polymer A in the form of polymer particles in disperse distribution, said particles comprising, from 80 to 99.9% by weight, based on the overall weight of the polymer A, of a water-insoluble polymer 1 having a glass transition temperature Tg1 in the range from −50 to +40° C., built up from ethylenically unsaturated monomers M1, and from 0.1 to 20% by weight, based on the overall weight of the polymer A, of one or more water-insoluble polymers i having a glass transition temperature Tgi of more than 50° C., built up from ethylenically unsaturated monomers Mi, ii) at least one pigment and, if desired, one or more extenders.Type: GrantFiled: January 8, 2001Date of Patent: November 5, 2002Assignee: BASF AktiengesellschaftInventors: Cheng-Le Zhao, Uwe Dittrich, Manfred Schwartz, Wolfgang Hümmer
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Publication number: 20020161109Abstract: The present invention relates to pressure sensitive adhesives based on aqueous latex emulsions processes for their preparation and laminates the prepared there from. The pressure sensitive adhesives exhibit excellent adhesion in hot water environments and resistance to water-whitening.Type: ApplicationFiled: November 13, 2001Publication date: October 31, 2002Inventors: Raymond Scott Harvey, Harvey J. Richards
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Patent number: 6465556Abstract: A composition comprising a polymer dispersion wherein said polymer is formed by reacting in the presence of water and in the presence of the reaction product of (i) one or more carboxylic fatty acids; and (ii) ammonia or one or more polyfunctional aromatic or aliphatic amines: (1) one or more ethylenically unsaturated monomers which is capable of polymerizing in an aqueous environment is provided.Type: GrantFiled: June 26, 1998Date of Patent: October 15, 2002Assignee: Rhodia Inc.Inventors: Charles E. Pratt, Paul Jakob, Jon D. Kiplinger
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Patent number: 6461728Abstract: Pressure sensitive adhesives can be formed using gamma irradiation. One embodiment is a pressure sensitive adhesive which is a polymeric reaction product formed by gamma ray irradiation of an emulsion composition. The emulsion composition includes water; (meth)acrylate monomer material; polar, free-radically polymerizable material that is copolymerizable with the (meth)acrylate monomer material; and at least one emulsifier.Type: GrantFiled: December 29, 2000Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventors: Douglas E. Weiss, Thu-Van T. Tran, Karen J. Leisinger
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Patent number: 6462113Abstract: Copolymerizates of methyl methacrylate and butyl methacrylate are used as plastisols in the automotive sector and as floor coverings. The invention describes a way to increase the storage stability of the plastisols by using small amounts of cross-linking agents.Type: GrantFiled: December 8, 1997Date of Patent: October 8, 2002Assignee: Roehm GmbH & Co. KGInventors: Wilhelm Elser, Guenther Schmitt, Ursula Rausch, Theodor Mager
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Patent number: 6458887Abstract: The method includes the steps of: preparing an organic mixture of oil, monomers selected among acrylic acid—and methacrylic acid esters and at most 25% of an acrylic or methacrylic monomer having an acide, amide, amine or epoxy group; placing the mixture in mini-emulsion in an aqueous phase in the presence of a co-solvent, preferably of the polyalkylene glycol type; and copolymerising the monomers in emulsion. When the emulsion is applied in a thin coating on a metal surface, it provides simultaneously a dry appearance, efficient protection and a pre-lubricating effect.Type: GrantFiled: May 21, 2001Date of Patent: October 1, 2002Assignee: UnisorInventors: Philippe Legros, Agnès Calleja, Yves Sully, Gérard Riess
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Patent number: 6447900Abstract: The present invention provides a pressure-sensitive adhesive having a storage modulus from 1×105 to 1×106 dyne/cm2 and at a frequency of 1 Hz; and having a gel fraction of 55% or more when the storage modulus is measured at a temperature of 25° C. in dynamic viscoelasticity measurement. Its pressure-sensitive adhesive product can be obtained by the process, for example, for producing the (meth)acrylate emulsion-type pressure-sensitive adhesive which comprises adding the polymerization-initiator(s) at separate multi-steps to the present reaction system in the presence of polymerization-initiator(s) at the time of polymerizing alkyl (meth)acrylate and which comprises using a water-soluble polymerization-initiator at least one time during or after the second step of adding the polymerization-initiator(s).Type: GrantFiled: September 27, 1999Date of Patent: September 10, 2002Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Shoji Ohtani, Yasuhiro Doi, Yoshinobu Ishikawa, Toshitaka Sakuda, Kenichi Shiba
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Patent number: 6437019Abstract: The present invention provides a multiple part ionomeric cement system comprising an organic composition that is substantially free of added water, and an aqueous composition comprising water. The organic composition contains at least a hydrophilic component and an acid functional compound that is provided as greater than 1.0% weight of the organic composition. The liquid ingredients of the compositions are miscible, both as separate compositions and when mixed together.Type: GrantFiled: May 16, 2000Date of Patent: August 20, 2002Assignee: 3M Innovative Properties CompanyInventors: Richard P. Rusin, Joel D. Oxman, Edward J. Winters
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Patent number: 6437036Abstract: The invention provides a thermosetting aqueous primer composition that includes a polyurethane polymer, an acrylic polymer, and a crosslinking component that is reactive with at least one of the polyurethane polymer and the acrylic polymer. The polyurethane polymer has a glass transition temperature of 0° C. or less. The acrylic polymer has a glass transition temperature that is at least about 20° C. higher than the glass transition temperature of polyurethane resin. The invention further provides a composite coating having as a primer layer a cured layer of the primer composition of the invention and having at least one topcoat layer.Type: GrantFiled: November 17, 1999Date of Patent: August 20, 2002Assignee: BASF CorporationInventors: Michael A. Gessner, Timothy P. Kandow
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Patent number: 6426381Abstract: This invention relates to aqueous polymer dispersions obtained by free radical emulsion copolymerization of ethylenically unsaturated monomers comprising (a) 30 to 60% by weight of at least one optionally substituted styrene, (b) 60 to 30% by weight of at least one C1-C4-alkyl (meth)acrylate, and (c) 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers, in the presence of (d) 10 to 40% by weight of degraded starch having a molecular weight Mn of 500 to 10,000, and (e) a graft-linking, water-soluble redox system as free radical initiator for the free radical emulsion copolymerization, wherein the sum (a)+(b)+(c)+(d) is 100%.Type: GrantFiled: August 11, 2000Date of Patent: July 30, 2002Assignee: Bayer AktiengesellschaftInventors: Joachim König, Eckhard Wenz, Günter Sackmann, Thomas Roick, Bernd Thiele, Gabriele Kinkel, Johan Kijlstra, Bernd Hauschel
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Patent number: 6420023Abstract: An aqueous, plasticizer-retardant pressure sensitive adhesive (PSA) is made from an aqueous latex emulsion having an average particle size diameter of not substantially above about 100 nm and made from a mixture of ethylenically-unsaturated monomers and oligomers that include one or more of N-(iso-butoxymethyl) acrylamide, N-(n-butoxymethyl) acrylamide, N-methylol acrylamide; and emulsified in the presence of an emulsifier consisting essentially of: In structure I, R1 is an alkyl, alkenyl, or aralkyl group containing between 6 and 18 carbon atoms, R2 is H or R1, R3 is H or a propenyl group; A is an alkylene group of 2 to 4 carbon atoms, n is an integer ranging from 1 to 200, X is H or SO3M, where M is an alkali metal, an ammonium ion, or an alkanolamine cation. Preferably, the ethylenically-unsaturated monomers include 2-ethylhexyl acrylate.Type: GrantFiled: June 20, 2000Date of Patent: July 16, 2002Assignee: Ashland Chemical CompanyInventors: Tony Kyle Rowley, Raymond Scott Harvey, Harvey Joseph Richards
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Patent number: 6417268Abstract: Method for producing an hydrophobically associative polymer is provided which is characterized by forming a monomer solution comprising a surfactant, at least one hydrophobic ethylenically unsaturated monomer, at least one hydrophilic monomer selected from nonionic ethylenically monomers, cationic ethylenically unsaturated monomers, anionic ethylenically unsaturated monomers or mixtures thereof, and water; forming a salt solution comprising a multivalent salt and water; mixing the monomer solution and salt solution to form a mixed solution; and charging the mixed solution with an initiator, thereby polymerizing the monomers to form the hydrophobically associative polymer in a dispersion. Aqueous dispersion containing the hydrophobically associative polymer formed by the method.Type: GrantFiled: December 6, 1999Date of Patent: July 9, 2002Assignee: Hercules IncorporatedInventors: Huashi T. Zhang, Baraka A. Kawawa, Fu Chen
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Patent number: 6403703Abstract: An aqueous composition suitable for use, when dry, as an improved elastomeric coating, caulk, sealant, or pressure sensitive adhesive is provided including a predominantly acrylic aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from −90° C. to 20° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0.5-5%, by weight based on the total weight of said polymer, ethylenically unsaturated carboxylic acid monomer until 90-99.7% of said monomers by weight, based on the total weight of said polymer, has been converted to polymer and subsequently at least half of the remaining monomer is converted to polymer in the presence of 0.1-1.0 wt %, by weight based on the total weight of said polymer, t-amyl hydroperoxide.Type: GrantFiled: July 7, 2000Date of Patent: June 11, 2002Assignee: Rohm and Haas CompanyInventor: Robert V. Slone
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Patent number: 6395827Abstract: An aqueous crosslinkable coating composition suitable for the provision of thick coatings without incurring carbon dioxide bubble formation comprising: (A) an aqueous dispersion of at least one hydroxyl- and acid-functional vinyl polymer having a hydroxyl value of 8 to 250 mg KOH/g of polymer and an acid value of 2 to 55 mg KOH/g of polymer, where the contribution of at least 30% of the acid value results from a monocarboxylic acid(s) of formula: CH2—CR1—Q—CO2H (1) where R1 is H or lower alkyl of 1 to 5 carbon atoms and Q is a spacer group of formula: [—C(═O)—X—(CH2)m—]k (2) where X is —O— or —NH—, m is at least 1, preferably 2 or 3, and k is at least 1, preferably 2, 3, 4 or 5; and (B) at least one organic polyisocyanate. The acid of formula (1) preferably comprises &bgr;-carboxyethyl acrylate.Type: GrantFiled: November 22, 1999Date of Patent: May 28, 2002Assignee: Avecia LimitedInventors: David Alan Pears, Erik Hendrik Colstee, Gerardus Cornelis Overbeek, John Christopher Padget, Tijs Nabuurs
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Patent number: 6376600Abstract: Aqueous dispersion of copolymers formed by the polymerization of a monomer mixture containing 0.05% to less than 4.5% by weight of certain terminally unsaturated oligomers are useful for improving the scrub resistance, corrosion resistance, opacifying capacity and/or efflorescence resistance of a coating.Type: GrantFiled: December 11, 2000Date of Patent: April 23, 2002Assignee: Rohm and Haas CompanyInventors: Robert David Solomon, Bradley Keith Hageman, Leo Joseph Procopio, Margo Raate Schaefer, Gary David Greenblatt, Stephen Scott Edwards, Gary Robert Larson, Alvin Michael Maurice, Stewart Orlyn Williams, Patricia Marie Lesko, Peter Reeves Sperry
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Publication number: 20020045703Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.Type: ApplicationFiled: December 14, 2000Publication date: April 18, 2002Inventors: David Robinson Bassett, Keith Russel Olesen
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Patent number: 6359092Abstract: An aqueous, blush-retardant pressure sensitive adhesive (PSA) is made from an aqueous latex emulsion having an average particle size diameter of not substantially above about 100 nm and emulsified in the presence of an emulsifier consisting essentially of: In structure I, R1 is an alkyl, alkenyl, or aralkyl group containing between 6 and 18 carbon atoms, R2 is H or R1, R3 is H or a propenyl group; A is an alkylene group of 2 to 4 carbon atoms, N is an integer ranging from 1 to 200, and M is an alkali metal, an ammonium ion, or an alkanolamine cation. Preferably, the emulsifier is: The preferred aqueous latex emulsion is prepared from a monomer mixture consisting essentially of at least one alkylacrylate having at least 4 carbon atoms in the alkyl chain, at least one ethylenically unsaturated carboxylic acid or its corresponding anhydride, and at least one styrenic monomer, and has a mean particle size diameter of less than or equal to about 100 nm.Type: GrantFiled: May 9, 2000Date of Patent: March 19, 2002Assignee: Ashland Chemical, Inc.Inventors: Raymond Scott Harvey, Harvey Joseph Richard
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Publication number: 20020013405Abstract: A resin composition for an aqueous paint, which comprises (a) a binder composed of different phase structure emulsion particles obtained by multi-stage emulsion polymerization, and (b) a compound having at least two hydrazide groups in its molecule, wherein the different phase structure emulsion particles have an outermost phase formed of an emulsion polymer which is an emulsion polymer of an ethylenic unsaturated monomer, having a glass transition temperature of from −50° C. to 15° C.Type: ApplicationFiled: June 19, 2001Publication date: January 31, 2002Applicant: Dai Nippon Toryo Co., Ltd.Inventors: Shinya Sakaguchi, Atsushi Takamatsu, Hiroharu Sasaki, Kazuyoshi Tsuneta
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Publication number: 20020010261Abstract: The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.Type: ApplicationFiled: August 30, 2001Publication date: January 24, 2002Inventors: Robert W. Callahan, Mark G. Stevens, Muguo Chen