Latex, Dispersion, Or Emulsion Contains An Additional Solid Polymer-forming System Patents (Class 521/69)
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Patent number: 11817582Abstract: The present invention relates to a binder composition for a secondary battery, an electrode slurry composition including the same, and an electrode and a secondary battery manufactured by using the same, the binder composition including: a latex particle (A) which is a polymer of a monomer mixture including (a1) a conjugated diene monomer, (a2) an ethylenically unsaturated carboxylic acid monomer, and (a3) an aromatic vinyl monomer; and an emulsifier (B), wherein the (a2) ethylenically unsaturated carboxylic acid monomer is included in an amount of 3 parts by weight or more based on 100 parts by weight of the monomer mixture and the emulsifier (B) is included in an amount of less than 3000 ppm based on 100 parts by weight of the latex particles.Type: GrantFiled: November 29, 2018Date of Patent: November 14, 2023Inventors: Hye Soo Han, Seon Hee Han, Min Ah Kang, Cheol Hoon Choi, Dong Jo Ryu
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Patent number: 8933139Abstract: Combinations of gelatinous elastomer and polyurethane foam may be made by introducing a plasticized A-B-A triblock copolymer resin and/or an A-B diblock copolymer resin into a mixture of polyurethane foam forming components including a polyol and an isocyanate. The plasticized copolymer resin is polymerized to form the gelatinous elastomer in-situ while simultaneously polymerizing the polyol and the isocyanate to form polyurethane foam. The polyurethane reaction is exothermic and can generate sufficient temperature to melt the styrene-portion of the A-B-A triblock copolymer resin thereby extending the crosslinking and in some cases integrating the A-B-A triblock copolymer within the polyurethane polymer matrix. The combination has a marbled appearance. The gel component has higher heat capacity than polyurethane foam and thus has good thermal conductivity and acts as a heat sink. Another advantage of in situ gel-foam is that the gel component provides higher support factors compared to the base foam alone.Type: GrantFiled: February 26, 2010Date of Patent: January 13, 2015Assignee: Peterson Chemical Technology, Inc.Inventors: Bruce W. Peterson, Mark Crawford
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Patent number: 8933140Abstract: Combinations of gelatinous elastomer containing one or more phase change materials, known as “phase change gel”, and polyurethane foam may be made by introducing at least partially cured phase change gel particles comprising plasticized triblock copolymer resin and/or diblock copolymer resin and one or more phase change materials, into a mixture of polyurethane foam-forming components including a polyol and an isocyanate. The phase change gel can be crosslinked to form a cured gelatinous gel, which is then reduced in size before introduction. After the foam-forming components polymerize to make polyurethane foam, the phase change gel particles are discrete visible particles dispersed throughout the foam. The polyurethane reaction is exothermic and can generate sufficient temperature to at least partially melt the styrene-portion of the triblock copolymer resin thereby extending the crosslinking.Type: GrantFiled: July 1, 2013Date of Patent: January 13, 2015Assignee: Peterson Chemical Technology, Inc.Inventors: Bruce W. Peterson, Mark L. Crawford
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Patent number: 8785531Abstract: A dispersion and methods for forming a dispersion that includes a catalytic linear multi-block olefin interpolymer, and at least one dispersing agent, wherein the catalytic linear multi-block olefin interpolymer includes at least one hard segment and at least one soft segment is disclosed. Various applications of the dispersion are also disclosed.Type: GrantFiled: July 2, 2007Date of Patent: July 22, 2014Assignee: Dow Global Technologies LLCInventors: Mark W. VanSumeren, Ronald Wevers, Charles F. Diehl, Gary M. Strandburg, Brad Maurice Moncla, Kevin D. Maak
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Patent number: 8703834Abstract: Crosslinked organic polymeric porous particles have a crosslinked organic solid phase and discrete pores dispersed within the crosslinked solid phase which pores are isolated from each other. These porous particles are prepared using one or more water-in-oil emulsions containing a polyfunctional reactive compound, a reagent that causes crosslinking, optionally an ethylenically unsaturated polymerizable monomer, and optionally an organic solvent, and can include various marker materials.Type: GrantFiled: July 28, 2011Date of Patent: April 22, 2014Assignee: Eastman Kodak CompanyInventor: Mridula Nair
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Patent number: 8673990Abstract: Methods herein include mixing at least one polyester resin with at least one solvent to form a resin mixture, adding water to cause phase inversion and form a polyester latex, adding at least one buffering agent to the phase inverted mixture to stabilize the phase inverted mixture, and subsequent to the buffering agent addition, substantially removing the at least one solvent from the phase inverted mixture.Type: GrantFiled: January 18, 2012Date of Patent: March 18, 2014Assignee: Xerox CorporationInventors: Zhen Lai, Chieh-Min Cheng
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Patent number: 8207236Abstract: The present invention provides a method for the production of porous particles that involves extracting an organic solvent from a water-in-oil-in-water emulsion. In accordance with the method of the invention, a first aqueous solution including a porosity-promoting agent is emulsified into an organic solution including a therapeutic constituent and, optionally, a matrix material to form a water-in-oil emulsion. The water-in-oil emulsion is then emulsified into a second aqueous solution including a surfactant to form the water-in-oil-in-water emulsion. Extraction of the organic solvent from the water-in-oil-in-water emulsion, such as by supercritical fluid extraction, causes the therapeutic constituent and optional matrix material to precipitate and thus form an aqueous suspension of porous particles. The aqueous suspension can be centrifuged, filtered and lyophilized to obtain dry porous particles suitable for use in the deep lung delivery of drugs and other therapeutic agents.Type: GrantFiled: May 14, 2007Date of Patent: June 26, 2012Assignee: Ferro CorporationInventors: Pratibhash Chattopadhyay, Boris Y. Shekunov, Adam K. Gibson
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Patent number: 7629049Abstract: A polymer system and device with a hemocompatible film or coated polymers is provided, the polymer system comprises an organic phase and an aqueous phase, the organic phase comprises polymerizable monomers and at least one initiator and the aqueous phase comprises at least one dispersing agent, at least one free radical inhibitor and at least one buffering agent, the organic phase is immiscible in the aqueous phase, and the dispersing agent forms a hemocompatible surface on the polymer, and the device comprises a housing for containing the polymer system.Type: GrantFiled: February 26, 2007Date of Patent: December 8, 2009Assignee: Medasorb, Inc.Inventors: Robert L. Albright, Vincent J. Capponi, Thomas D. Golobish
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Publication number: 20090111902Abstract: Materials and methods for providing building barriers are provided. The material may comprise a latex foam, which may include an A-side containing a functionalized latex and a B-side that contains a crosslinking agent and optionally a non-functionalized latex. The A- and/or B-side may contain a blowing agent package or components forming the blowing agent package. The blowing agent package may be the combination of two or more chemicals that when mixed together form a gas or a chemical compound that, when activated by heat or light, forms a gas. In an alternate embodiment, the latex foam includes a functionalized latex, an acid, and an encapsulated crosslinking agent and base. Alternatively, the spray latex may include a functionalized latex, a crosslinking agent, and an encapsulated dry acid and dry base. The encapsulating agent may be a protective, non-reactive shell that can be broken or melted at the time of application.Type: ApplicationFiled: October 25, 2007Publication date: April 30, 2009Inventors: Michelle L. Korwin-Edson, Robert J. O' Leary, Robert E. Quinn, Fatemeh N. Olang
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Patent number: 7465765Abstract: The present invention is drawn to compositions and methods of generating epoxide group-functionalized latex particulates in a liquid suspension, as well as compositions and methods of preparing ink-jet inks. Steps of the methods can include forming an emulsion including a continuous hydrophilic phase and a discontinuous hydrophobic phase, wherein the discontinuous hydrophobic phase includes a plurality of monomers. The plurality of monomers can comprise epoxide group-forming monomers and support-forming monomers. Other steps include copolymerizing the monomers to form precursor latex particulates dispersed within the hydrophilic phase, and reacting the precursor latex particulates with a base to form epoxide group-functionalized latex particulates. These latex particulates can be used in a wide variety of applications, including in ink-jet ink printing applications.Type: GrantFiled: September 27, 2004Date of Patent: December 16, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sivapackia Ganapathiappan, Zhang-Lin Zhou
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Patent number: 7449505Abstract: Porous polymer microspheres having a size of from about 3 to about 50 microns and a geometric standard deviation of about 1.25 or less are disclosed. The porous polymer microspheres are made by a method including the steps of preparing an emulsion comprised of polymer particles having an average particle size of less than about 3 microns and a diluent, subjecting the emulsion to an aggregating condition to form aggregated polymer particles, optionally coalescing the aggregated polymer particles, and removing the diluent to form the porous polymer microspheres.Type: GrantFiled: May 20, 2005Date of Patent: November 11, 2008Assignee: Xerox CorporationInventors: Chieh-Min Cheng, Mark A. Jackson
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Publication number: 20080237133Abstract: The present invention provides a macroporous copolymer having large pores, typically in the range of 5,000-200,000 ? and a typical breaking weight of at least 175 g/bead. The macroporous copolymers can be made using an interpenetrating polymer network (IPN) techniques. These macroporous copolymers may also form macroporous resins. The present invention also provides methods of using the macroporous copolymers and resins.Type: ApplicationFiled: March 26, 2008Publication date: October 2, 2008Applicant: THE PUROLITE COMPANYInventors: James A. Dale, Vladimir Sochilin, Luc Froment
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Patent number: 7358281Abstract: Disclosed are hollow polymer particles composed of a crosslinked polymer having a comparatively small particle diameter and a narrow particle diameter distribution, an aqueous dispersion of the particles, and an ink having good flying property. The hollow polymer particles are obtained by emulsion-polymerizing a crosslinkable polymerizable monomer composition absorbed in seed particles and containing a crosslinkable monomer component and a hydrophilic monomer component, wherein the seed particles are particles of a polymer having a weight average molecular weight of 500 to 15,000, and obtained by emulsion-polymerizing 100 parts by mass of a non-crosslinkable polymerizable monomer in the presence of 0.01 to 5 parts by mass of a chain transfer agent composed of at least one compound selected from the group consisting of ?-methylstyrene dimer, thiuram disulfides and terpene hydrocarbons. The ink contains the hollow polymer particles.Type: GrantFiled: November 22, 2004Date of Patent: April 15, 2008Assignee: JSR CorporationInventors: Yasuhisa Watanabe, Kouji Tamori
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Patent number: 7201962Abstract: A polymer with a hemocompatible film or coating is manufactured by a one-step method comprising polymerizing monomer droplets comprising at least one crosslinking agent to form a polymer and simultaneously coating the resulting polymer using at least one dispersing agent to thereby form a hemocompatible coated polymer.Type: GrantFiled: March 16, 2005Date of Patent: April 10, 2007Assignee: Medasorb CorporationInventor: Robert L. Albright
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Patent number: 7112620Abstract: A polymer system with a hemocompatible film or coating is provided, the system comprises an organic phase and an aqueous phase, the organic phase comprises polymerizable monomers and at least one initiator and the aqueous phase comprises at least one dispersing agent, at least one free radical inhibitor and at least one buffering agent, the organic phase is immiscible in the aqueous phase, and the dispersing agent forms a hemocompatible surface on the polymer.Type: GrantFiled: May 27, 2003Date of Patent: September 26, 2006Inventor: Robert L. Albright
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Patent number: 6884829Abstract: A polymer with a hemocompatible film or coating is manufactured by a one-step method comprising polymerizing monomer droplets comprising at least one crosslinking agent to form a polymer and simultaneously coating the resulting polymer using at least one dispersing agent to thereby form a hemocompatible coated polymer.Type: GrantFiled: October 18, 2002Date of Patent: April 26, 2005Inventor: Robert L. Albright
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Patent number: 6777454Abstract: This invention relates to a process of preparing vesiculated granules of crosslinked carboxylated polyester resin utilising a particular class of non-alkylphenolethoxylate surfactant.Type: GrantFiled: June 28, 2002Date of Patent: August 17, 2004Assignee: Orica Australia Pty Ltd.Inventors: Philip J. A. Ritchie, Algirdas K. Serelis
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Patent number: 6746759Abstract: A resin mixture for forming a stable closed cell foam contains a phenolic resole, a chain extending agent, and as curing agents, a base, and an ester and/or an aliphatic carbonate. The chain extending agent is especially an epoxy resin and/or a phenolic novalak resin.Type: GrantFiled: April 12, 2002Date of Patent: June 8, 2004Assignee: Kingspan Industrial Insulation LimitedInventors: Mark Stanley Harris, Vincent Coppock, Norman Ryder, Graham Morgan Edgerley
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Publication number: 20030114548Abstract: The present invention relates to a latex with modified surface chemistry, which may be obtained by carrying out a free-radical emulsion polymerization in the presence of at least one ethylenically unsaturated monomer or at least one polymer containing residual ethylenically unsaturated bonds,of at least one free-radical polymerization initiator,of at least one water-soluble and/or water-dispersible monoblock, diblock or triblock polymer comprising at its end an active group capable of forming a radical, chosen from dithioesters, xanthates, thioether-thiones and diothiocarbamates. The invention similarly relates to redispersible powders that may be obtained by drying the said latices.Type: ApplicationFiled: June 4, 2002Publication date: June 19, 2003Inventors: William Bett, Jean-Christophe Castaing, Jean-Francois D'Allest
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Patent number: 6531523Abstract: A beaded polymeric adsorbent has a core part; a shell part arranged around the core part, with one of the parts having a lipophilic property and another of the parts having a hydrophilic property, and is produced by preparing an organic phase composed of water insoluble monounsaturated and poly unsaturated comonomers; preparing an aqueous phase composed of a mixture of water soluble monounsaturated and polyunsaturated comonomers; forming a dispersion of the organic phase and the aqueous phase in a single vessel; and creating conditions for first polymerizing of one of the phases which forms the core part and thereafter polymerizing the other of the phases which forms the shell part.Type: GrantFiled: October 10, 2000Date of Patent: March 11, 2003Assignee: Renal Tech International, LLCInventors: Vadim Davankov, Maria Tsyurupa, Ludmila Pavlova
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Patent number: 6127439Abstract: The present invention provides a process for preparing an expandable polymer of a vinyl aromatic monomer and a polar water adsorbing monomer. The monomers are partially polymerized and then suspended in water so that the resulting beads contain from 3 to 40 weight % water which act as the sole or a predominant blowing agent.Type: GrantFiled: December 30, 1998Date of Patent: October 3, 2000Assignee: NOVA Chemicals (International) S.A.Inventors: Hugo Angela Albert Berghmans, Igor Chorvath, Peter Kelemen, Eric Wilhelmus Johannes Frederik Neijman, Johannes Maria Zijderveld
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Patent number: 5766749Abstract: A foam-expanded material of the invention has biodegradability, and is suitable for use as a shock absorber that prevents environmental pollution. When the foam-expanded material is formed, a granular material is prepared by mixing starch, rubber latex and water. The granular material is packed in a mold and heated to thereby form the foam-expanded material.Type: GrantFiled: October 11, 1995Date of Patent: June 16, 1998Assignee: Watanabe-Zo Shoten Co., Ltd.Inventors: Hideo Kakinoki, Hisaya Sato
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Patent number: 5763335Abstract: Layered composite materials adapted to be formed into predetermined shaped components disposed for contact with moisture and body fluids having a cover layer for contact with the moisture and body fluids and a foam layer including one or more sorbents in a hydrophilic polyurethane foam matrix, wherein the foam layer is bonded to the cover layer so that moisture and body fluids in contact with the cover layer are transferred through the cover layer to the foam layer. The foam layer is established by combining an aqueous mixture including the sorbent in a predetermined ratio with the hydrophilic polyurethane. The foam layer may include other active ingredients such as odor absorption and bactericidal components, thermal phase change components and finely ground rubber tire materials to vary the characteristics of the composite material.Type: GrantFiled: May 21, 1996Date of Patent: June 9, 1998Assignee: H.H. Brown Shoe Technologies, Inc.Inventor: Paul F. Hermann
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Patent number: 5760097Abstract: The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the microbead. The present invention also relates to a process for producing a porous, crosslinked polymeric microbead as well as the product of this process. This process involves combining an oil phase with an aqueous discontinuous phase to form an emulsion, adding the emulsion to an aqueous suspension medium to form an oil-in-water suspension of dispersed emulsion droplets, and polymerizing the emulsion droplets to form microbeads. At least 10% of the microbeads produced in accordance with the present invention are substantially spherical or substantially ellipsoidal or a combination of the two.Type: GrantFiled: April 10, 1996Date of Patent: June 2, 1998Assignee: Biopore CorporationInventors: Nai-Hong Li, James R. Benson, Naotaka Kitagawa
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Patent number: 5696174Abstract: Stable and water-resistant aqueous foam composition containing (1) a long chain cationic organic compound and (2) a long-chain anionic organic compound in a weight ratio of from 0.05:1 to 15:1. The stable foam composition of the invention may be mixed with various water-soluble or water-dispersible organic, polymeric, or inorganic substances and used in applications where lightweight, heat, sound or other insulative, barrier properties or homogeneous material distribution are needed. Such applications include cementitious or gypsum containing substances, adhesives, binders, paper treating materials, coatings, ceramics, landfills, geofills, and firefighting and fireproofing materials.Type: GrantFiled: December 4, 1996Date of Patent: December 9, 1997Assignee: Allied Foam Tech CorporationInventors: Yen-Yau H. Chao, Kuei-Jung Chao
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Patent number: 5506035Abstract: An improved superabsorbent polymer foam having a morphology to provide improved absorptive properties is disclosed. The foam preferably comprises a superabsorbent polymer formed from a substantially water-soluble, unsaturated monomer having neutralized carboxyl groups and a substantially water-soluble internal crosslinking agent. The monomer and crosslinking agent are expanded in the presence of a substantially water-insoluble blowing agent and a suitable solvent and reacted to form a superabsorbent polymer foam having substantially continuous, intercommunicating channels substantially throughout the foam and a relatively high surface area to mass ratio.Methods for making the foam and absorbent products, members and articles containing the foam are also disclosed.Type: GrantFiled: November 17, 1994Date of Patent: April 9, 1996Assignee: The Procter & Gamble CompanyInventors: Dean Van Phan, Paul D. Trokhan
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Patent number: 5446072Abstract: An emulsion composition for flameproof foam sheet which comprises components (A)-(C) wherein the amount of component (B) is 5-50 parts by weight per 100 parts by weight of component (A) (based on solid content), and the amount of component (C) is 50-350 parts by weight per 100 parts by weight of component (A) (based on solid content):(A): An emulsion of ethylene-vinyl ester copolymer which is composed of 5-35% by weight of (a.sub.1) ethylene and 95-65% by weight of (a.sub.2) vinyl ester and, whose glass transition temperature is -25.degree. C.-+15.degree. C. and toluene-insoluble part is 30% or more by weight;(B): Thermal expansive hollow micro bead;(C): Inorganic filler.Type: GrantFiled: November 14, 1994Date of Patent: August 29, 1995Assignee: Sumitomo Chemical Co., Ltd.Inventors: Tatsuo Mitsutake, Shizuo Narisawa
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Patent number: 5430070Abstract: Newly developed polymeric materials are presented in a form of pellet, thread, sponge, rubber, or plate acting as a damper for shear mode and an absorber against outside noise. These materials provide multiple functions of damping, sound absorbency and insulation performance at audio frequency.Type: GrantFiled: December 16, 1994Date of Patent: July 4, 1995Assignee: Ryusuke KonoInventor: Ryusuke Kono
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Patent number: 5338766Abstract: An improved superabsorbent polymer foam having a morphology to provide improved absorptive properties is disclosed. The foam preferably comprises a superabsorbent polymer formed from a substantially water-soluble, unsaturated monomer having neutralized carboxyl groups and a substantially water-soluble internal crosslinking agent. The monomer and crosslinking agent are expanded in the presence of a substantially water-insoluble blowing agent and a suitable solvent and reacted to form a superabsorbent polymer foam having substantially continuous, intercommunicating channels substantially throughout the foam and a relatively high surface area to mass ratio.Methods for making the foam and absorbent products, members and articles containing the foam are also disclosed.Type: GrantFiled: March 26, 1993Date of Patent: August 16, 1994Assignee: The Procter & Gamble CompanyInventors: Dean V. Phan, Paul D. Trokhan
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Patent number: 5162280Abstract: A storage stable aqueous dispersion useful in the curing of unsaturated polyester resins and the suspension polymerization of vinyl monomers containing an aromatic diacyl peroxide, an alkylene glycol and dispersion-stabilizing amounts of magnesium aluminum silicate and a cellulose ether compound is disclosed. Also disclosed are the curing of polyester resins and the suspension polymerization of vinyl monomers using the dispersion.Type: GrantFiled: October 11, 1991Date of Patent: November 10, 1992Assignee: Witco CorporationInventor: Lawrence A. Bock
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Patent number: 5124363Abstract: A method of treating hazardous material or other substrate with an aqueous air foam, comprising the steps of (1) preparing an aqueous solution or dispersion comprising (a) water-soluble polyhydroxy polymer having a plurality of hydrogen-bondable 1,2- and/or 1,3-diol structures capable of complexation with the borate anion, B(OH).sub.4.sup.Type: GrantFiled: March 26, 1991Date of Patent: June 23, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Richard M. Stern
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Patent number: 5093374Abstract: Expandable molding compositions having high heat distortion resistance and containing from 80 to 99% by weight of a styrene polymer, 1 to 20% by weight of poly-1,4-phenylene sulfide, from 1 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon as blowing agent and, if desired, customary additives, are obtained by suspension polymerization of a solution of the polyphenylene sulfide in styrene.Type: GrantFiled: June 28, 1990Date of Patent: March 3, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
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Patent number: 5057479Abstract: A storage stable aqueous dispersion useful in the curing of unsaturated polyester resins and the suspension polymerization of vinyl monomers containing an aromatic diacyl peroxide, an alkylene glycol and dispersion-stabilizing amounts of magnesium aluminum silicate and a cellulose ether compound is disclosed. Also disclosed are the curing of polyester resins and the suspension polymerization of vinyl monomers using the dispersion.Type: GrantFiled: February 1, 1991Date of Patent: October 15, 1991Assignee: Witco CorporationInventor: Lawrence A. Bock
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Patent number: 5026735Abstract: A method of treating hazardous material or other substrate with an aqueous air foam, comprising the steps of (1) preparing an aqueous solution or dispersion comprising (a) water-soluble polyhydroxy polymer having a plurality of hydrogen-bondable 1,2- and/or 1,3-diol structures capable of complexation with the borate anion, B(OH).sub.4.sup.Type: GrantFiled: June 12, 1990Date of Patent: June 25, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Richard M. Stern
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Patent number: 4973670Abstract: The present invention provides for a process for preparing hollow polymer latexes by a one stage emulsion polymerization. The first step invloves introducing an effective amount of a first charge of a organic phase to an aqueous phase. The first charge of the organic phase comprises monomer which is vertually insoluble in the aqeuous phase and an inert-nonpolymerizable hydrocarbon. The polymer formed from polymerizing the monomer is virtually insoluble in the hydrocarbon, the hydrocarbon is virtually insoluble in the aqueous phase and the monomer is miscible with the hydrocarbon. The monomer is polymerized to produce a low molecular weight polymer such that the low molecular weight polymer will phase separate from the organic phase and conentrates at the surface of the introduced organic phase forming a low molecular weight polymer phase.Type: GrantFiled: November 22, 1989Date of Patent: November 27, 1990Assignee: The Dow Chemical CompanyInventors: Charles J. McDonald, Yohannes Chonde, William E. Cohrs, Dalton C. MacWilliams
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Patent number: 4940732Abstract: A storage stable aqueous dispersion useful in the curing and foaming of unsaturated polyester resins comprising an aromatic diacyl peroxide, an alkali metal carbonate or bicarbonate, dispersion-stabilizing amount of magnesium aluminum silicate and an alkali metal carboxymethyl cellulose, glycerol and water. As an optional component this composition can also contain an anionic dispersing agent. Also disclosed is the preparation of foamed polyester resins using the dispersion.Type: GrantFiled: November 30, 1989Date of Patent: July 10, 1990Assignee: Witco CorporationInventors: Ronald L. Pastorino, Lawrence A. Bock
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Patent number: 4892891Abstract: Foam compositions with improved physical characteristics are from urethane prepolymers in the presence of various modifying agents. Blowing agents employed in the presence of surfactants make it possible to obtain either open or closed cell structures, and the degree of foam stiffness may be desirably controlled with polyols, as well as with polymeric polymethylene polyphenylisocyanates. Suitable modifying agents include asphalts, portland cement, epichlorohydrin, other epoxidized compounds, additional polymers, and various other materials.Type: GrantFiled: December 2, 1988Date of Patent: January 9, 1990Assignee: Syn-Coat EnterprisesInventor: Donald S. Close
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Patent number: 4892854Abstract: A storage stable aqueous dispersion useful in the curing and foaming of unsaturated polyester resins comprising an aromatic diacyl peroxide, an alkali metal carbonate or bicarbonate, dispersion-stabilizing amount of magnesium aluminum silicate and an alkali metal carboxymethyl cellulose, glycerol and water. As an optional component this composition can also contain an anionic dispersing agent. Also disclosed is the preparation of foamed polyester resins using the dispersion.Type: GrantFiled: January 5, 1989Date of Patent: January 9, 1990Assignee: Witco CorporationInventors: Ronald L. Pastorino, Lawrence A. Bock
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Patent number: 4857566Abstract: This invention relates to a curable latex composition, films and foams produced therefrom and method for preparing said curable latex composition. The composition comprises a carboxylated latex, an epoxy resin emulsion containing an organo-soluble or organo-miscible catalyst and a water-soluble catalytic curing agent. The carboxylated latex comprises a copolymer of from 0 to 75 percent by weight of a vinyl aromatic monomer, from 0 to 85 percent by weight of a diene monomer and from 0.5 to 25 percent by weight of an ethylentically unsaturated carboxylic acid monomer, all weight percentages based on the total weight of the copolymer. The latex is produced by emulsion polymerization of one or more monomers in an aqueous environment. The various components of the curable latex composition may be maintained separately until shortly before use because of their ambient temperature curing properties. In some instances two or more components which do not react with each other can be premixed.Type: GrantFiled: December 28, 1987Date of Patent: August 15, 1989Assignee: The Dow Chemical CompanyInventor: Alois Helbling
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Patent number: 4833173Abstract: The invention relates to a coagulable composition, to a process for the preparation of a coagulated material by impregnating a textile cloth in an impregnating bath containing the coagulable composition followed by coagulation in a coagulating bath and to the resulting coagulated material.The process of the invention is characterized in that the coagulation is carried out from the water phase, and the impregnating bath contains a chemical or physical foaming agent, wherein foaming occurs simultaneously with the coagulation or immediately thereafter.It is surprisingly found that according to the present invention a high quality coagulated material is obtained, having properties comparable with the coagulated material obtained according to conventional solvent based processes.Type: GrantFiled: July 22, 1988Date of Patent: May 23, 1989Inventors: Dirk P. Spek, Leonardus A. van Der Heyden
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Patent number: 4725627Abstract: Disclosed is a sculpted, hand-squeezable toy which possesses dimensional memory and has a predetermined dimensional memory restoration time. The toy is made by blending a foamable hydrophilic polyurethane isocyanate-functional prepolymer, a vinyl or acylic polymer emulsion recovery rate modifier, water, and an organic cosolvent. The blend then is charged to a mold for the foamed toy to be made therein. The proportion of organic cosolvent present and the temperature of the blend being molded are variables for determining the predetermined dimensional memory restoration time of the toy after it has been squeezed.Type: GrantFiled: March 16, 1987Date of Patent: February 16, 1988Assignee: Signastone IncorporatedInventors: Sigurdur I. Arnason, Michael A. Kunke
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Patent number: 4711909Abstract: A storage stable aqueous dispersion useful in the curing and foaming of unsaturated polyester resins containing an aromatic diacyl peroxide, an alkali metal carbonate or bicarbonate and dispersion-stabilizing amounts of magnesium aluminum silicate and an alkali metal carboxymethyl cellulose. Also disclosed is the preparation of foamed polyester resins using the dispersion.Type: GrantFiled: April 3, 1987Date of Patent: December 8, 1987Assignee: Witco CorporationInventors: Ronald L. Pastorino, Lawrence A. Bock
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Patent number: 4692427Abstract: A storage stable aqueous dispersion useful in the curing and foaming of unsaturated polyester resins containing an aromatic diacyl peroxide, an alkali metal carbonate or bicarbonate and dispersion-stabilizing amounts of magnesium aluminum silicate and an alkali metal carboxymethyl cellulose. Also disclosed is the preparation of foamed polyester resins using the dispersion.Type: GrantFiled: November 25, 1986Date of Patent: September 8, 1987Assignee: Witco CorporationInventors: Ronald L. Pastorino, Lawrence A. Bock
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Patent number: 4499036Abstract: A method of providing cured latex-based compositions is disclosed which permits in situ curing of latexes disposed in plastic container closures or other heat sensitive receptacles without adverse effect on the closure or receptacle. The method comprises heating a fluid latex composition to gel the latex and effect removal of at least a portion of the water initially contained therein and subjecting the resultant composition to modulated microwave energy to effect curing thereof. Modulation of the microwave energy is achieved by applying same in an intermittent or pulsed fashion. The method is of particular interest for the in situ formation of cured latex-based gaskets in polyalkylene container closures.Type: GrantFiled: July 20, 1984Date of Patent: February 12, 1985Assignee: W. R. Grace & Co.Inventor: J. Barry Hawkes, Jr.
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Patent number: 4480053Abstract: A coating composition. The composition includes particles of polystyrene foam in admixture with a latex resin binder. The admixture can be sprayed or otherwise coated on a roof or other surface and provides a durable, insulating and inexpensive substitute for other coating materials. The amount of latex binder, which is relatively expensive, is preferably kept to a minimum and the polystyrene foam particles may be derived from waste or low-cost foam polystyrene.Type: GrantFiled: May 26, 1982Date of Patent: October 30, 1984Assignee: Aperm of South CarolinaInventor: Stanley A. Sherno
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Patent number: 4406816Abstract: In a process for the preparation of microcapsules based on a melamine-formaldehyde resin, in which the microcapsules are obtained by condensing a melamine-formaldehyde precondensate, its C.sub.1 -C.sub.4 -alkyl ethers, or mixtures thereof, in water in which the material forming the capsule core is dispersed, at a pH of from 3 to 6.5 and at from 20.degree. to 100.degree. C., the improvement that the water contains a homopolymer or copolymer which possesses sulfonic acid groups but is devoid of phenyl or sulfophenyl groups and has a K value of from 100 to 170 or a viscosity of from 200 to 5,000 mPa.s (shearing gradient 489 s.sup.-1 ; 20% strength solution at 25.degree. C.), and that the melamine-formaldehyde precondensate is added continuously, or in portions, in step with the rate of condensation.The process gives individual capsules which are highly impermeable. The capsules are exceptionally useful for the production of pressure-sensitive recording materials.Type: GrantFiled: September 30, 1980Date of Patent: September 27, 1983Assignee: BASF AktiengesellschaftInventor: Wolfgang Sliwka
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Patent number: 4314033Abstract: This invention relates to a novel product, fibrils of crosslinked polyester resin having a vesiculated structure, and to a process of making them.Vesiculated fibrils of crosslinked polyester resin of length 50 .mu.m-5 cm, diameter 1 .mu.m-2 mm and aspect ratio of 10-50 are prepared by pouring into water with stirring a selected solution in unsaturated monomer of a carboxylated unsaturated polyester resin of acid value 10-90 mg KOH per g., the water containing both a base having a pK.sub.b value of 8 maximum and a dispersion stabilizer, and initiating polymerization. The polyester solution is selected for suitability for fibril formation by means of a buoyancy test.The fibrils are useful in a number of applications, for example, as fillers for paints and putties, viscosity modifiers in liquids and replacements in some applications for fibrous mineral extenders such as asbestos.Type: GrantFiled: November 19, 1980Date of Patent: February 2, 1982Assignee: Dulux Australia Ltd.Inventors: John Gillan, Colin M. Richards
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Patent number: 4288559Abstract: The instant invention is directed to a process for the production of flame resistant foams by the impregnation of polyurethane foams with a dispersion consisting substantially of an aluminum hydroxide, a polyurethane latex, an alumino-silicate and surface active substances which results in foams having very desirable mechanical properties as well as excellent flame resistant properties.Type: GrantFiled: November 1, 1979Date of Patent: September 8, 1981Assignee: Bayer AktiengesellschaftInventors: Hans-Walter Illger, Manfred Dahm, Alberto C. Gonzalez-Dorner
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Patent number: 4259384Abstract: An imitation-leather sheet laminate material is prepared employing an acidic, heat-coagulated, cross-linkable, elastomeric, latex polymer, wherein the acidic latex polymer is coated onto a top, resin, skin layer and a fibrous base sheet is placed on the wet foam layer, which method comprises: shock-heating the wet foam layer to coagulate and cross-link the polymer therein into a fine, open-cell, tough, foam layer and to remove rapidly water from the coagulated foam layer.Type: GrantFiled: September 17, 1979Date of Patent: March 31, 1981Assignee: Compo Industries, Inc.Inventors: Manuel J. Veiga, Richard E. Petersen
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Patent number: 4229547Abstract: This invention relates to a new and improved quiescent polymerization process which produces spherical beads of polymer having excellent porosity and unusually high bulk density. The process comprises polymerizing discrete droplets of liquid monomer containing a monomer-soluble free radical type catalyst while suspended in an aqueous mucilage having plastic flow properties and in the presence of a nonionic surfactant having the proper Hydrophile-Lipophile Balance (HLB), such as, for example, sorbitan monooleate. The porous bead polymers have the advantage of providing for lower cost bulk shipping, better extrusion feed, and for easy monomer stripping.Type: GrantFiled: March 19, 1979Date of Patent: October 21, 1980Assignee: The B. F. Goodrich CompanyInventors: Louis Cohen, Pijus K. Basu