Latex, Dispersion, Or Emulsion Contains An Additional Solid Polymer-forming System Patents (Class 521/69)
  • Patent number: 11817582
    Abstract: 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: Grant
    Filed: November 29, 2018
    Date of Patent: November 14, 2023
    Inventors: Hye Soo Han, Seon Hee Han, Min Ah Kang, Cheol Hoon Choi, Dong Jo Ryu
  • Patent number: 8933140
    Abstract: 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: Grant
    Filed: July 1, 2013
    Date of Patent: January 13, 2015
    Assignee: Peterson Chemical Technology, Inc.
    Inventors: Bruce W. Peterson, Mark L. Crawford
  • Patent number: 8933139
    Abstract: 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: Grant
    Filed: February 26, 2010
    Date of Patent: January 13, 2015
    Assignee: Peterson Chemical Technology, Inc.
    Inventors: Bruce W. Peterson, Mark Crawford
  • Patent number: 8785531
    Abstract: 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: Grant
    Filed: July 2, 2007
    Date of Patent: July 22, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Mark W. VanSumeren, Ronald Wevers, Charles F. Diehl, Gary M. Strandburg, Brad Maurice Moncla, Kevin D. Maak
  • Patent number: 8703834
    Abstract: 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: Grant
    Filed: July 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Eastman Kodak Company
    Inventor: Mridula Nair
  • Patent number: 8673990
    Abstract: 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: Grant
    Filed: January 18, 2012
    Date of Patent: March 18, 2014
    Assignee: Xerox Corporation
    Inventors: Zhen Lai, Chieh-Min Cheng
  • Patent number: 8207236
    Abstract: 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: Grant
    Filed: May 14, 2007
    Date of Patent: June 26, 2012
    Assignee: Ferro Corporation
    Inventors: Pratibhash Chattopadhyay, Boris Y. Shekunov, Adam K. Gibson
  • Patent number: 7629049
    Abstract: 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: Grant
    Filed: February 26, 2007
    Date of Patent: December 8, 2009
    Assignee: Medasorb, Inc.
    Inventors: Robert L. Albright, Vincent J. Capponi, Thomas D. Golobish
  • Publication number: 20090111902
    Abstract: 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: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Inventors: Michelle L. Korwin-Edson, Robert J. O' Leary, Robert E. Quinn, Fatemeh N. Olang
  • Patent number: 7465765
    Abstract: 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: Grant
    Filed: September 27, 2004
    Date of Patent: December 16, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Zhang-Lin Zhou
  • Patent number: 7449505
    Abstract: 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: Grant
    Filed: May 20, 2005
    Date of Patent: November 11, 2008
    Assignee: Xerox Corporation
    Inventors: Chieh-Min Cheng, Mark A. Jackson
  • Publication number: 20080237133
    Abstract: 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: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: THE PUROLITE COMPANY
    Inventors: James A. Dale, Vladimir Sochilin, Luc Froment
  • Patent number: 7358281
    Abstract: 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: Grant
    Filed: November 22, 2004
    Date of Patent: April 15, 2008
    Assignee: JSR Corporation
    Inventors: Yasuhisa Watanabe, Kouji Tamori
  • Patent number: 7201962
    Abstract: 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: Grant
    Filed: March 16, 2005
    Date of Patent: April 10, 2007
    Assignee: Medasorb Corporation
    Inventor: Robert L. Albright
  • Patent number: 7112620
    Abstract: 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: Grant
    Filed: May 27, 2003
    Date of Patent: September 26, 2006
    Inventor: Robert L. Albright
  • Patent number: 6884829
    Abstract: 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: Grant
    Filed: October 18, 2002
    Date of Patent: April 26, 2005
    Inventor: Robert L. Albright
  • Patent number: 6777454
    Abstract: This invention relates to a process of preparing vesiculated granules of crosslinked carboxylated polyester resin utilising a particular class of non-alkylphenolethoxylate surfactant.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: August 17, 2004
    Assignee: Orica Australia Pty Ltd.
    Inventors: Philip J. A. Ritchie, Algirdas K. Serelis
  • Patent number: 6746759
    Abstract: 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: Grant
    Filed: April 12, 2002
    Date of Patent: June 8, 2004
    Assignee: Kingspan Industrial Insulation Limited
    Inventors: Mark Stanley Harris, Vincent Coppock, Norman Ryder, Graham Morgan Edgerley
  • Publication number: 20030114548
    Abstract: 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: Application
    Filed: June 4, 2002
    Publication date: June 19, 2003
    Inventors: William Bett, Jean-Christophe Castaing, Jean-Francois D'Allest
  • Patent number: 6531523
    Abstract: 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: Grant
    Filed: October 10, 2000
    Date of Patent: March 11, 2003
    Assignee: Renal Tech International, LLC
    Inventors: Vadim Davankov, Maria Tsyurupa, Ludmila Pavlova
  • Patent number: 6127439
    Abstract: 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: Grant
    Filed: December 30, 1998
    Date of Patent: October 3, 2000
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Hugo Angela Albert Berghmans, Igor Chorvath, Peter Kelemen, Eric Wilhelmus Johannes Frederik Neijman, Johannes Maria Zijderveld
  • Patent number: 5766749
    Abstract: 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: Grant
    Filed: October 11, 1995
    Date of Patent: June 16, 1998
    Assignee: Watanabe-Zo Shoten Co., Ltd.
    Inventors: Hideo Kakinoki, Hisaya Sato
  • Patent number: 5763335
    Abstract: 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: Grant
    Filed: May 21, 1996
    Date of Patent: June 9, 1998
    Assignee: H.H. Brown Shoe Technologies, Inc.
    Inventor: Paul F. Hermann
  • Patent number: 5760097
    Abstract: 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: Grant
    Filed: April 10, 1996
    Date of Patent: June 2, 1998
    Assignee: Biopore Corporation
    Inventors: Nai-Hong Li, James R. Benson, Naotaka Kitagawa
  • Patent number: 5696174
    Abstract: 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: Grant
    Filed: December 4, 1996
    Date of Patent: December 9, 1997
    Assignee: Allied Foam Tech Corporation
    Inventors: Yen-Yau H. Chao, Kuei-Jung Chao
  • Patent number: 5506035
    Abstract: 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: Grant
    Filed: November 17, 1994
    Date of Patent: April 9, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Dean Van Phan, Paul D. Trokhan
  • Patent number: 5446072
    Abstract: 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: Grant
    Filed: November 14, 1994
    Date of Patent: August 29, 1995
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Tatsuo Mitsutake, Shizuo Narisawa
  • Patent number: 5430070
    Abstract: 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: Grant
    Filed: December 16, 1994
    Date of Patent: July 4, 1995
    Assignee: Ryusuke Kono
    Inventor: Ryusuke Kono
  • Patent number: 5338766
    Abstract: 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: Grant
    Filed: March 26, 1993
    Date of Patent: August 16, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5162280
    Abstract: 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: Grant
    Filed: October 11, 1991
    Date of Patent: November 10, 1992
    Assignee: Witco Corporation
    Inventor: Lawrence A. Bock
  • Patent number: 5124363
    Abstract: 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: Grant
    Filed: March 26, 1991
    Date of Patent: June 23, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard M. Stern
  • Patent number: 5093374
    Abstract: 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: Grant
    Filed: June 28, 1990
    Date of Patent: March 3, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
  • Patent number: 5057479
    Abstract: 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: Grant
    Filed: February 1, 1991
    Date of Patent: October 15, 1991
    Assignee: Witco Corporation
    Inventor: Lawrence A. Bock
  • Patent number: 5026735
    Abstract: 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: Grant
    Filed: June 12, 1990
    Date of Patent: June 25, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard M. Stern
  • Patent number: 4973670
    Abstract: 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: Grant
    Filed: November 22, 1989
    Date of Patent: November 27, 1990
    Assignee: The Dow Chemical Company
    Inventors: Charles J. McDonald, Yohannes Chonde, William E. Cohrs, Dalton C. MacWilliams
  • Patent number: 4940732
    Abstract: 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: Grant
    Filed: November 30, 1989
    Date of Patent: July 10, 1990
    Assignee: Witco Corporation
    Inventors: Ronald L. Pastorino, Lawrence A. Bock
  • Patent number: 4892854
    Abstract: 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: Grant
    Filed: January 5, 1989
    Date of Patent: January 9, 1990
    Assignee: Witco Corporation
    Inventors: Ronald L. Pastorino, Lawrence A. Bock
  • Patent number: 4892891
    Abstract: 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: Grant
    Filed: December 2, 1988
    Date of Patent: January 9, 1990
    Assignee: Syn-Coat Enterprises
    Inventor: Donald S. Close
  • Patent number: 4857566
    Abstract: 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: Grant
    Filed: December 28, 1987
    Date of Patent: August 15, 1989
    Assignee: The Dow Chemical Company
    Inventor: Alois Helbling
  • Patent number: 4833173
    Abstract: 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: Grant
    Filed: July 22, 1988
    Date of Patent: May 23, 1989
    Inventors: Dirk P. Spek, Leonardus A. van Der Heyden
  • Patent number: 4725627
    Abstract: 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: Grant
    Filed: March 16, 1987
    Date of Patent: February 16, 1988
    Assignee: Signastone Incorporated
    Inventors: Sigurdur I. Arnason, Michael A. Kunke
  • Patent number: 4711909
    Abstract: 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: Grant
    Filed: April 3, 1987
    Date of Patent: December 8, 1987
    Assignee: Witco Corporation
    Inventors: Ronald L. Pastorino, Lawrence A. Bock
  • Patent number: 4692427
    Abstract: 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: Grant
    Filed: November 25, 1986
    Date of Patent: September 8, 1987
    Assignee: Witco Corporation
    Inventors: Ronald L. Pastorino, Lawrence A. Bock
  • Patent number: 4499036
    Abstract: 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: Grant
    Filed: July 20, 1984
    Date of Patent: February 12, 1985
    Assignee: W. R. Grace & Co.
    Inventor: J. Barry Hawkes, Jr.
  • Patent number: 4480053
    Abstract: 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: Grant
    Filed: May 26, 1982
    Date of Patent: October 30, 1984
    Assignee: Aperm of South Carolina
    Inventor: Stanley A. Sherno
  • Patent number: 4406816
    Abstract: 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: Grant
    Filed: September 30, 1980
    Date of Patent: September 27, 1983
    Assignee: BASF Aktiengesellschaft
    Inventor: Wolfgang Sliwka
  • Patent number: 4314033
    Abstract: 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: Grant
    Filed: November 19, 1980
    Date of Patent: February 2, 1982
    Assignee: Dulux Australia Ltd.
    Inventors: John Gillan, Colin M. Richards
  • Patent number: 4288559
    Abstract: 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: Grant
    Filed: November 1, 1979
    Date of Patent: September 8, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Walter Illger, Manfred Dahm, Alberto C. Gonzalez-Dorner
  • Patent number: 4259384
    Abstract: 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: Grant
    Filed: September 17, 1979
    Date of Patent: March 31, 1981
    Assignee: Compo Industries, Inc.
    Inventors: Manuel J. Veiga, Richard E. Petersen
  • Patent number: 4229547
    Abstract: 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: Grant
    Filed: March 19, 1979
    Date of Patent: October 21, 1980
    Assignee: The B. F. Goodrich Company
    Inventors: Louis Cohen, Pijus K. Basu