Adding -n=c=x Material To A Latex, Dispersion, Or Emulsion Containing A Solid Polymer Patents (Class 521/67)
  • Patent number: 8748514
    Abstract: The invention relates to aqueous dispersions containing agents having release activity, emulsifiers and customary auxiliaries and additives, wherein a combination of A) at least one agent having a release activity, selected from the group consisting of soaps, oils, waxes and silicones, and B) polyesters is used as agents having release activity.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: June 10, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Ralf Althoff, Torsten Henning, Helmut Lammerting
  • Publication number: 20120261851
    Abstract: Process to manufacture a composite foam including at least two foams with cellular structure, at least one of them being a latex foam. The present process avails itself of the steps of preparing separately the forming mixtures of the foams of cellular structure; mixing independently the one from the other forming mixtures; foaming separately each of the forming mixture; sending separately the foams obtained into a single mixing installation; mixing the foams until to manufacture the composite foam. Preferably the composite foam is deposited on a laying surface to form rest articles for example mattresses provided with recesses.
    Type: Application
    Filed: December 6, 2011
    Publication date: October 18, 2012
    Applicant: Sapsa Bedding Srl
    Inventors: Luciano Abrigo, Renzo Villa, Daniele Stafforini
  • Patent number: 8143364
    Abstract: Process for preparing a composition by reacting a polyisocyanate, a monoalkoxy polyoxyalkylene monoamine and water. The composition and its use in making cellular products are claimed as well.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 27, 2012
    Assignee: Huntsman International LLC
    Inventors: Gerhard Jozef Bleys, Hans Godelieve Guido Verbeke
  • Publication number: 20090286894
    Abstract: A porous polymer blend, and a method of producing a porous polymer blend from at least two immiscible polymers. The at least two immiscible polymer being blended together and exhibiting the absence of complete phase separation. The method of producing a porous polymer blend comprising: forming a liquid composition comprising at least two immiscible polymers dissolved in a common solvent; subjecting the liquid composition to a reduction in temperature to cause at least two immiscible polymers to phase separate into a common polymer rich phase and a common polymer poor phase; solidifying the at least two immiscible polymers in the common polymer rich phase so as to avoid complete phase separation of the at least two immiscible polymers; and removing the common polymer pore phase to provide a blend of the at least two immiscible polymers having a porous morphology.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 19, 2009
    Inventors: Justin John Cooper-White, Yang Cao, Andrew Stewart Rowlands
  • Publication number: 20090203809
    Abstract: The subject of the invention is polyurethane materials with a high water content and with an elastomeric or cellular character for wide application fields and also a method for the production thereof.
    Type: Application
    Filed: August 24, 2007
    Publication date: August 13, 2009
    Inventors: Renate Marquardt, Frauke Petry
  • Patent number: 7538154
    Abstract: The invention provides aqueous preparations having soft-feel properties, foams obtainable by mechanically foaming these preparations, and soft-feel coatings based on the foams. The preparations comprise aqueous polyurethane-polyurea dispersions, hydroxy-functional, aqueous or water-dilutable binders, polyisocyanates which may have been hydrophilically modified, and foam stabilizers.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: May 26, 2009
    Assignee: Bayer MaterialScience AG
    Inventors: Torsten Pohl, Uwe Klippert, Thomas M├╝nzmay, Frank Kobor
  • Publication number: 20090130174
    Abstract: A biodegradable polyurethane scaffold that includes a HDI trimer polyisocyanate and at least one polyol; wherein the density of said scaffold is from about 50 to about 250 kg m-3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore. The scaffolds of the present invention are injectable as polyurethane foams, and are useful in the field of tissue engineering.
    Type: Application
    Filed: August 20, 2008
    Publication date: May 21, 2009
    Inventors: Scott A. Guelcher, Andrea E, Hafeman, Lance I. Hochhauser
  • Patent number: 7179845
    Abstract: The invention relates generally to a stable flexible latex foam. The latex foam will contain at least one polymer having a plurality of hard domains and a plurality of soft domains, a micelle forming agent, a hydrocarbon propellant substantially free of dimethyl ether, and an agent which is a solvent for said micelle forming agent and an emulsifier for said hydrocarbon propellant.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: February 20, 2007
    Assignee: Fomo Products, Inc.
    Inventor: Anthony Taylor
  • Patent number: 6660667
    Abstract: A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted and dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric. In an alternative embodiment, an extensible fabric is coated with an extensible binder containing microencapsulated phase change material to form an extensible, coated fabric. The coated fabric is optionally flocked. The coated fabrics are manufactured using transfer techniques.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: December 9, 2003
    Assignees: Outlast Technologies, Inc., R. H. Wyner Associates, Inc.
    Inventors: Joseph L. Zuckerman, Robert J. Pushaw, Bernard T. Perry, Daniel M. Wyner
  • Patent number: 6509388
    Abstract: The invention provides a method of forming a polyurethane foam suitable for use as a wound-contacting layer, said method comprising: mixing 1 part by weight of an isocyanate-capped prepolymer having from 0.5 to 4.8 meq. NCO groups/g with from 0.4 to 1.0 parts by weight of water and an effective amount of a nonvolatile pharmaceutically acceptable acid to form a prepolymer mixture; allowing said prepolymer mixture to cure to form a foamed product; followed by drying the foamed product. The invention also provides acidified polyurethane foams obtainable by this method, and wound dressings comprising such foams.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: January 21, 2003
    Assignee: Johnson and Johnson Medical Limited
    Inventor: Deborah Addison
  • Patent number: 6417315
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: July 9, 2002
    Assignee: Mearthane Products Corporation
    Inventors: Albert C. Chiang, John A. Roderick
  • Patent number: 6395794
    Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise solid, waxy non-ionic lipophilic surfactants having low HLB values. These surfactants, upon foamed dispensing of the composition, provide stable support for bubbles formed from drying of a latex emulsion of a film forming polymer and a volatile liquid hydrocarbon propellant. In addition to use in caulking, sealant or insulation methods, the composition can be used to form artificial terrains and other hardenable structural surfaces as backgrounds or support means for hobbies, crafts, and the like.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: May 28, 2002
    Assignee: DAP Products Inc.
    Inventors: Patrick J. Lucas, Anthony J. Taylor
  • Patent number: 6372810
    Abstract: The present invention is a low density polyurethane foam cushion useful as an attached carpet cushion or as a detached carpet underlay. The low density foams of the present invention are prepared by a process wherein a polyurethane foam formulation is blown by both mechanical and chemical processes.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: April 16, 2002
    Assignee: The Dow Chemical Company
    Inventors: Daniel W. Kazmierski, Randall C. Jenkines
  • Patent number: 6326410
    Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally other hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: December 4, 2001
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Catherine Louise Cheong
  • Patent number: 6284077
    Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise solid, waxy non-ionic lipophilic surfactants having low HLB values. These surfactants, upon foamed dispensing of the composition, provide stable support for bubbles formed from drying of a latex emulsion of a film forming polymer and a volatile liquid hydrocarbon propellant. In addition to use in caulking, sealant or insulation methods, the composition can be used to form artificial terrains and other hardenable structural surfaces as backgrounds or support means for hobbies, crafts, and the like.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: September 4, 2001
    Assignee: DAP Products Inc.
    Inventors: Patrick J. Lucas, Anthony J. Taylor
  • Patent number: 6207738
    Abstract: A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted and dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: March 27, 2001
    Assignee: Outlast Technologies, Inc.
    Inventors: Joseph L. Zuckerman, Robert J. Pushaw, Bernard T. Perry, Daniel M. Wyner
  • Patent number: 6184331
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: February 6, 2001
    Assignee: Mearthane Products Corporation
    Inventors: Albert C. Chiang, John A. Roderick
  • Patent number: 6111051
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: August 29, 2000
    Assignee: Mearthane Products Corporation
    Inventors: Albert C. Chiang, John A. Roderick
  • Patent number: 6069184
    Abstract: A method for the production of polyurethane elastomers by reacting an isocyanate epolymer having an isocyanate content of from 5 to 10% by weight which is the reaction product of an excessive amount of a polyisocyanate containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a variant thereof and a polyether polyol having an average nominal hydroxyl functionality of from 2 to 4, an average hydroxyl equivalent weight of from 500 to 3000, and an oxyethylene content of from 50 to 85% by weight, with an aqueous latex to form a foam, and compressing said foam.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: May 30, 2000
    Assignee: Imperial Chemical Industries PLC
    Inventors: Gerhard Jozef Bleys, Alan James Hamilton, Edward Francis Cassidy
  • Patent number: 5994421
    Abstract: A water-absorbent resin dispersion comprising a water-absorbent resin (B) or a hydrous gel thereof dispersed in a liquid or heat-meltable organic active-hydrogen compound (A), wherein said resin (B) is formed by the polymerization of a water-soluble monomer or its precursor and a cross-linker and/or a polysaccharide in the compound (A); and a process for producing a polyurethane resin by the reaction of the dispersion with an organic polyisocyanate compound. As the polyurethane resin is excellent in the capacity and rate of absorption, it is useful as absorbent articles such as paper diaper and sanitary goods, humidity modifiers, cutoff material, and so forth.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: November 30, 1999
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Kazuya Otani, Masahiro Matsuoka, Kohei Maeda, Kozaburo Nagata, Takao Ando, Toru Nakanishi, Isao Ishikawa, Takayuki Tsuji
  • Patent number: 5898057
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 27, 1999
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick
  • Patent number: 5800861
    Abstract: Infrared absorbing compositions useful as high solid coatings comprising 5-50% of a volatile solvent portion and 50-95% of a non-volatile portion which comprises a film-forming binder having dispersed within the binder opacifying polymeric beads and an infrared radiation absorbing pigment selected from the group consisting of copper phosphate, basic copper phosphate, copper pyrophosphate, tungsten trioxide and mixtures thereof.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: September 1, 1998
    Assignee: The Sherwin-Williams Company
    Inventors: Chwan-Hwa Peter Chiang, William Roland Dawson, Layton Fredrick Kinney, Charles J. Sherman
  • Patent number: 5731382
    Abstract: Coating agents are described, that are suitable for the production of pigmented or transparent top coatings, based on hydroxy-functional (meth)acrylic copolymers, aliphatic and/or cycloaliphatic polyisocyanates, solvents, and customary lacquer additives and pigments. They are free from epoxy resins and nitrocellulose and contain as binderA) one or more (meth)acrylic copolymers, containing hydroxyl groups, froma1) 47-53 wt % of one or more aromatic vinyl compounds,a2) 28-33 wt % of one or more hydroxyalkyl methacrylates,a3) 14-19 wt % of one or more alkyl (meth)acrylates, anda4) 0.5-2 wt % acrylic acid and/or methacrylic acid,with a hydroxyl number of 120-160 mg KOH/g, an acid number of 5 to 15 mg KOH/g, a weight-average molecular weight of 10,000 to 20,000 and a glass transition temperature of +40.degree. C. to +60.degree. C., andB) an aliphatic and/or cycloaliphatic polyisocyanate or a mixture of such polyisocyanates in such an amount that 0.5 to 2.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: March 24, 1998
    Assignee: Herberts GmbH
    Inventors: Klaus Bederke, Gerhard Bremer, Hermann Kerber, Manfred Krumme, Fritz Sadowski, Werner Stephan, Olaf Ley
  • Patent number: 5639847
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 17, 1997
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick
  • Patent number: 5607982
    Abstract: A flexible open-cell polyurethane is described that is the reaction product of a mixture comprising(a) a polyisocyanate component comprising monomeric or polymeric MDI, and(b) a polyol component having at least 50% of its 0H functional groups as secondary OH groups.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: March 4, 1997
    Assignee: BASF Corporation
    Inventors: Duane A. Heyman, Theodore M. Smiecinski, Donald C. Mente
  • Patent number: 5438107
    Abstract: A condensed resin dispersion having fine particles of a condensed resin dispersed stably in a polyether polyol (c), the condensed resin being a reaction product of an aldehyde and a compound condensable with the aldehyde, or of their precondensate, wherein the fine particles of the condensed resin are fine condensed resin particles formed by the reaction and precipitation conducted in an isocyanate-modified polyether (b) obtained by reacting an organic polyisocyanate to a polyether (a) having at least one active hydrogen group reactive with an isocyanate group, or to such a polyether (a) and a low molecular weight active hydrogen-containing compound having at least one active hydrogen group, and having substantially no free isocyanate group.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: August 1, 1995
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takao Doi, Noriko Itaya, Masami Yamashita
  • Patent number: 5290898
    Abstract: A condensed resin dispersion having fine particles of a condensed resin dispersed stably in a polyether polyol (c), the condensed resin being a reaction product of an aldehyde and a compound condensable with the aldehyde, or of their precondensate, wherein the fine particles of the condensed resin are fine condensed resin particles formed by the reaction and precipitation conducted in an isocyanate-modified polyether (b) obtained by reacting an organic polyisocyanate to a polyether (a) having at least one active hydrogen group reactive with an isocyanate group, or to such a polyether (a) and a low molecular weight active hydrogen-containing compound having at least one active hydrogen group, and having substantially no free isocyanate group.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 1, 1994
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takao Doi, Noriko Itaya, Masami Yamashita
  • Patent number: 5223570
    Abstract: A method for preparing graft polymer dispersions having broad particle size distribution without wildly fluctuating viscosities is disclosed. The method comprises:(a) preparing intermediate graft polyol dispersions containing 30 percent by weight or less solids to achieve a broad distribution of partial sizes in a continuous process and(b) charging the intermediate graft polymer dispersion of (a) to a semi-batch reactor as seeds for further grafting to increase the solids content of the dispersion to above 30 percent by weight. The graft polymer so formed is useful in the production of polyurethanes.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: June 29, 1993
    Assignee: BASF Corporation
    Inventors: Mao Y. Huang, Kenneth C. Scott, Joseph F. Louvar
  • Patent number: 5100936
    Abstract: The flame retardance of polyurethane foams is improved by dispersing in a polyol used to make the urethane foam a finely divided resin composition composed of 60-85 wt % of an aminoplast resin filled with 40 to 15 wt % of an aminoplast resin filled with 40 to 15 wt % of cellulose fiber.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 31, 1992
    Assignee: BIP Chemicals Limited
    Inventors: George Inverarity, Geoffrey P. Twiss
  • Patent number: 5098937
    Abstract: Flexible polyurethane foams having bulk densities within the range of from 15 to 60 kg/cm.sup.3 and a load bearing capacity, under a compression rate of 40%, higher than 50 N, obtained by the reaction of a modified polyisocyanate with a compound containing activated hydrogen atoms in chain-end position, and wherein agents different from chloro-fluoroalkanes are used as the foaming agent.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: March 24, 1992
    Assignee: Montedipe S.r.l.
    Inventors: Bruno Gallo, Gianflavio Lunardon
  • Patent number: 5082867
    Abstract: Flame retardant additive compositions for flexible polyurethane foam comprise pentabromodiphenyl ether and non-mutagenic halogenated alkyl phosphate ester mixtures of the formula: ##STR1##
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: January 21, 1992
    Assignee: Great Lakes Chemical Corporation
    Inventors: David E. May, Richard S. Rose
  • Patent number: 4883832
    Abstract: Fluid polymer/polyol dispersions are prepared from novel polyether polyols.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: November 28, 1989
    Assignee: BP Chemicals Limited
    Inventors: Rudolpha C. Cloetens, Werner A. Lidy, Huy P. Thanh
  • Patent number: 4876290
    Abstract: Microcapsules, and especially suspensions of microencapsulated colorants well adapted for the manufacture of carbonless papers, are produced by emulsifying a hydrophobic organic fluid which includes an aliphatic diisocyanate and an isocyanurate ring trimer of an aliphatic diisocyanate, and optionally a dissolved organic material, in an essentially aqueous liquid containing a protective colloid, a surfactant, or both, wherein the weight ratio of aliphatic diisocyanate/trimer ranges from 0.05/l to 0.70/l and the surface tension between the aqueous phase and the hydrophobic organic phase ranges from 0 to 20 mN/m, and then forming microcapsules by interfacially reacting a polyamine with the emulsion which results, thereby constituting polyurea walls of said microcapsules by polyaddition.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: October 24, 1989
    Assignee: Rhone-Poulenc Chimie
    Inventor: Gilbert Vivant
  • 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: 4555527
    Abstract: Graft polymer dispersions are prepared by polymerizing aqueous solutions of acrylamide in unsaturation-containing polyols. These dispersions are employed in preparing polyurethane products.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: November 26, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman
  • Patent number: 4513124
    Abstract: An adduct of a monoahl, e.g., a monohydroxyl polyalkylene oxide, and an active ethylenically unsaturated coreactant monomer, methacryloyl chloride, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers.The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomers(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: April 23, 1985
    Assignee: The Dow Chemical Company
    Inventor: Dwight K. Hoffman
  • Patent number: 4460711
    Abstract: A flexible foamed or solid rubber mass is produced on a substrate by ejection. Two pressurized containers are used, one containing an aqueous latex dispersion together with a pressurized inert propellant and the other an aqueous coagulant solution together with a pressurized propellant and the solutions are ejected simultaneously from two vessels so as to converge on the target and impinge thereon at spots distanced from each other by not more than 50 cm.The invention also provides an apparatus for carrying out the method.The invention is applicable whenever it is desired to produce instantaneously a flexible foamed or solid rubber mass on a substrate. One of the important applications of the invention is self-defense and the combatting of riots.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: July 17, 1984
    Assignee: Ispra Protection Associates
    Inventor: Amnon Jacobson
  • Patent number: 4419457
    Abstract: There is provided a method of producing an open-cell polyurethane foam comprising heating a mixture of an aqueous emulsion of a polyurethane-forming composition and a fluorocarbon compound of 1 to 3 carbon atoms having a boiling point of 5.degree. to 100.degree. C. The above emulsion may further contain an ionic surfactant.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: December 6, 1983
    Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.
    Inventor: Mototsugu Tokunaga
  • Patent number: 4314034
    Abstract: An open cell polyurea polyurethane foamed sponge is produced by mixing together a resin and an aqueous pahse. The resin phase consists of a prepolymer made from a hydrophilic oxyalkylene polyol which is capped with isocyanate groups and from about 1-30% by weight of the prepolymer of a polymeric polysocyanate such as a PAPI resin. The aqueous phase contains water, reinforcing fibers, surfactants, a thickening agent and preferably up to 40% by weight of diatomaceous earth. The resulting foam has a reduced volume swell, rapid wet out and improved wet strength.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: February 2, 1982
    Assignee: W. R. Grace & Co.
    Inventors: Glenn E. Fulmer, Conrad Vollmerhausen
  • 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: 4260530
    Abstract: This invention relates to a process for the preparation of a finely divided, stable and relatively low viscosity dispersion of a polyisocyanate polyaddition product and an aminoplast and/or phenoplast and/or copolymer thereof in a hydroxyl containing compound and the use of such a dispersion as the starting component for the production of a polyurethane resin.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: April 7, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Artur Reischl, Hanns Muller, Kuno Wagner
  • Patent number: 4251411
    Abstract: A process for the manufacture of partially dehydrated organic polymer polyol dispersions from the reaction of polyhydroxyl compounds and aqueous polymer dispersions wherein the problem of excessive viscosity is overcome by mixing the reactants with a recycled partially dehydrated polyol polymer dispersion, removing water from the reaction mixture, removing a portion of the partially dehydrated polyol polymer dispersion, and recycling the remainder.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: February 17, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Heinz, Hermann Dikow, Wolfgang Jarre, Dietmar Nissen, Klaus Matthias, Hanshelmut Kaeppel
  • Patent number: 4208485
    Abstract: An expansion agent comprising a foamable mixture of (a) 15-53 weight % of a foaming agent having 6 to 78 carbon atoms selected from the group of an ammonium salt, aliphatic amine salt and/or an alkali metal salt of an alkyl sulfate, hydroxyalkyl sulfate, alkyl ether sulfate and/or aryl alkyl ether sulfate; (b) 5-42 weight % of a dispersant having 22 to 260 carbon atoms selected from the group of an alkyl alkyleneoxy amine and/or its quaternary alkylsulfate, alkylhalide or alkylphosphate derivative; and (c) 5-40 weight % of a stabilizer having 8 to 68 carbon atoms selected from the group of a sodium and/or potassium salt of an alkyl sulfosuccinate; and the combination of said mixture with a synthetic resin, latex or natural rubber to provide a coating or finishing composition; the process of applying said composition to a substrate and the treated substrate product having incorporated the composition of the invention.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: June 17, 1980
    Assignee: GAF Corporation
    Inventor: Roop C. Nahta