Treating Or Preparing A Nonaqueous Dispersion Or Emulsion Of A Solid Polymer Or Specified Intermediate Condensation Product Patents (Class 524/923)
  • Patent number: 9023981
    Abstract: The use of non aqueous dispersions NADs has enabled the development of fast setting sheet fed inks, for example. However either due to residual monomers or fractions of initiators, these NAD's have an objectionable odor. A chemical means of dramatically reducing the odor of the NAD's is thus presented. In exemplary embodiments of the present invention, such a chemical treatment can include an amine/alkali mixture in a coupling solvent. In exemplary embodiments of the present invention, the coupling solvent can be one or more of an alcohol, glycol or glycol ether, such as, for example, isopropyl alcohol. In exemplary embodiments of the present invention the amine can be an alkyl amine, such as, for example, diethyl amine, or various other amines, whether alone or in combination. In exemplary embodiments of the present invention, the alkali can be one or more of sodium hydroxide, potassium hydroxide and ammonium hydroxide, whether alone or in any combination thereof.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: May 5, 2015
    Assignee: Sun Chemical Corporation
    Inventors: Ramasamy Krishnan, Mark Schneider, David Klein
  • Patent number: 7972696
    Abstract: Particles with a structural surface which are useful to produce abrasion resistant self-cleaning surfaces contain particulate solid particles having a superstructured overlayer of fine particles. The particles may be prepared by polymerizing a polymerizable siloxane, silane, or mixture thereof in a Pickering emulsion.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 5, 2011
    Assignee: Wacker Chemie AG
    Inventors: Frank Sandmeyer, Herbert Barthel, Torsten Gottschalk-Gaudig
  • Patent number: 7732544
    Abstract: The present invention relates to a titanium compound produced from a reaction mixture of a titanium tetraalkoxide compound with water and an optically active ligand represented by the following general formula (1), or a titanium oxoalkoxide compound and an optically active ligand represented by the following general formula (1), wherein, in the formula, R2, R3 and R4 independently represent a hydrogen atom, an alkyl group or the like, and A* represents a hydrocarbon-containing group with three or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for producing optically active cyanohydrins which is characterized by reacting a carbonyl compound with a cyanating agent in the presence of such a titanium compound.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: June 8, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhiko Yoshinaga, Takushi Nagata, Satoru Miyazoe
  • Patent number: 7026369
    Abstract: To provide an aqueous emulsion composition which has high adhesion strength for a wide variety of materials including molded products and affords sufficient wettability even for the object to be adhesive bonded of low surface polarity so that it can develop sufficient adhesiveness and whose emulsion is stable so satisfactorily as to provide good mechanical stability and storage stability, and to provide an adherent composition comprising the aqueous emulsion composition, at least ethylene-vinyl acetate copolymer or modified resin thereof, photo polymerization initiator, and unsaturated ethylenic monomer are mixed and dissolved or dispersed, to prepare oil drop component, followed by emulsifying the oil drop component in water by using a surface-active agent, whereby an aqueous emulsion composition, in which micelles each encapsulating at least the ethylene-vinyl acetate copolymer or modified resin thereof, the photo polymerization initiator and unsaturated ethylenic monomer are dispersed in water, is prepared
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: April 11, 2006
    Assignee: Mitsui Takeda Chemicals, Inc.
    Inventors: Kenji Kuroda, Susumu Okatani, Hiroyuki Shiraki
  • Patent number: 6537497
    Abstract: The invention discloses a composition and method of absorbing and/or detecting the presence of ignitable liquids. The composition includes a hydrophobic polymer, a hydrophobic long-chain carboxylic acid and, optionally, a hydrophobic solvent indicator dye and a hydrophobic white metallic oxide. The composition may be applied to an area suspected of containing an ignitable liquid and allowed to remain on the area for a time period sufficient to react with the ignitable liquid. If an ignitable liquid is present, the composition will form an aggregate by agglomeration with the ignitable liquid.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: March 25, 2003
    Inventor: John H. Woodland
  • Patent number: 6372840
    Abstract: In a dispersion containing acrylic polymer microparticles, particularly useful in automotive coatings, the dispersion is formed by free radical addition copolymerization of unsaturated monomers in a hydrocarbon dispersing medium in the presence of first and second polymeric dispersion stabilizers. The first polymeric dispersion stabilizer has an acrylic backbone and polyester side chains, and the second polymeric dispersion stabilizer is a branched polyester formed from the reaction of polyol, polyacid or anhydride, and fatty acid.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 16, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mohamad D. Shalati, Susana C. Steppan, Michael A. Mayo
  • Patent number: 6342553
    Abstract: A dispersion of an ester polymer in at least one liquid wherein the ester polymer is a polymer consisting essentially of a first monomer with structural units derived from at least one ester (1) of an aliphatic carboxylic acid with an aliphatic alcohol, wherein one of the acid and alcohol is ethylenically unsaturated and the other of the acid and alcohol has a long chain group of 14-40 carbons. A second monomer is optionally present which is a monomer derived from a different ester (2) within the same definition as ester (1), such that the mole average carbon content of the long chain group is 15-35, and a third monomer with structural units derived from a corresponding ester (3) of an aliphatic carboxylic acid and an aliphatic alcohol. One of the acid and alcohol is ethylenically unsaturated and the other has an aliphatic group of 1-13 carbons, such that at least 30% of the said aliphatic groups have 15-35 carbons.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: January 29, 2002
    Assignee: BP Chemicals Limited
    Inventors: Philip Kenneth Gordon Hodgson, Spencer Edwin Taylor
  • Patent number: 5998542
    Abstract: A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an M.sup.H Q resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique particle size distribution.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: December 7, 1999
    Assignee: General Electric Company
    Inventors: Adam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
  • Patent number: 5939475
    Abstract: A novel pourable organophilic clay polyamide composition useful as a rheological additive for organic fluid system comprisinga) from about 5 to 15 weight percent of an organophilicly modified smectite-type clay,b) from about 25 to about 35 weight percent of one or more rheologically active polyamides andc) from about 40 to 60 weight percent of one or more organic solvents preferably selected from the group consisting of n-propanol, toluene and mineral spirits.The organophilic clay polyamide composition is used in non-aqueous fluid systems such as paints, inks, and coatings to provide improved rheological properties to the system.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: August 17, 1999
    Assignee: Rheox, Inc.
    Inventors: William Reynolds, Glen Hawthorne
  • Patent number: 5929162
    Abstract: A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an M.sup.H Q resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique particle size distribution.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: July 27, 1999
    Assignee: General Electric Company
    Inventors: Adam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
  • Patent number: 5814675
    Abstract: The invention provides a process for the preparation of polyurethane microspheres, which comprises of preparing a solution of diol or polyol having a molecular weight in the range of 200-2000, crosslinker and a catalyst selected from amino or organometallic compounds, dispersing this solution in dilute solution of stabilizer which consists of a block copolymer having the general formula ?A!.sub.n-- ?B!.sub.m where A and B are chemically and compositionally dissimilar segments and n and m segments are in between 30-115 and 10-60 units respectively, such that the sum of n and m does not exceed 175 units, in an aliphatic hydrocarbon, adding an isocyanate dropwise to this dispersion, agitating the mixture at high speed of 100-1200 revolutions per minute, a temperature between 30.degree. to 55.degree. C. to permit the formation of polyurethane microspheres, separating these microspheres by filtration, washing with lower aliphatic hydrocarbon and drying the microspheres under vacuum.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: September 29, 1998
    Assignee: Council of Scientific & Industrial Research
    Inventors: Parshuram Gajanan Shukla, Swaminathan Sivaram
  • Patent number: 5744523
    Abstract: Polyacrylate esters having an average molecular weight of 1500 to 20,000 and being obtainable by the transesterification of alkyl polyacrylates, obtained by free radical polymerization and containing 1 to 4 carbon atoms in the alkyl group, witha) saturated or unsaturated aliphatic alcohols with 12 to 22 carbon atoms andb) optionally, additionally with dialkylaminoalkanols of the general formula HO--R.sup.1 --NR.sup.2 R.sup.3, wherein R.sup.1 is a divalent alkylene groups with 2 to 4 carbon atoms and are R.sup.2, R.sup.3 are the same or different and represent alkyl groups with 1 to 4 carbon atoms,the molar ratio of the aliphatic alcohols a) to the dialkylaminoalkanols b) being 1:0 to 1:1.5, and the components a) and b) being used in such amounts, that 25 to 70% of the ester groups are transesterified, are used as dispersants for finely divided solids, particularly for fillers and pigments, in organic media.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: April 28, 1998
    Assignee: Th. Goldschmidt AG
    Inventors: Michael Barkowsky, Jurgen Fock, Dietmar Schaefer
  • Patent number: 5661199
    Abstract: A non-aqueous dispersion containing, in addition to organic solvents,A) from 15-85% by weight of a dissolved film-forming component of hydroxyl group- and carboxyl-group containing polyesters, (meth)acrylic copolymers or mixtures thereof in which up to half the molecules may be esterified with 1 molecule of maleic acid each, andB) from 15-85% by weight of a disperse phase of uncross-linked (meth)acrylic copolymers having a hydroxyl number of at least 300, obtainable by the radical polymerization ofa) from 80-100% by weight of hydroxyalkyl (meth)acrylates andb) from 0-20% by weight of other .alpha.,.beta.-monounsaturated monomers in the dissolved film-forming component.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: August 26, 1997
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Bederke, Hermann Kerber, Ralf Dahm, Friedrich Herrmann, Horst Voss
  • Patent number: 5654361
    Abstract: Polymer prepared by anionic polymerization and having a number average molecular weight of from 300,000 to 10,000,000 contain, as components,from 10 to 100% by weight of an ethylenically unsaturated vinyl-aromatic a),from 0 to 90% by weight of an aliphatic diene having two conjugated double bonds b) andfrom 0 to 30% by weight of further ethylenically unsaturated monomers c).
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: August 5, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Binnur Gunesin, Johannes Dobbelaar, Uwe Dittrich, Joachim Krobb
  • Patent number: 5601668
    Abstract: A sealing material preferably having a cone penetration of at least 150 (10.sup.-1 mm) and an ultimate elongation of at least 100% is subjected to mechanical deformation by milling or chopping in the presence of a solvent or suspending medium.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: February 11, 1997
    Assignee: Raychem Corporation
    Inventor: William D. Uken
  • Patent number: 5480928
    Abstract: A process for producing a stable dispersion of ethylene oxide polymer which comprises contacting (a) a slurry of granular ethylene oxide polymer in a first inert normally-liquid hydrocarbon diluent, with (b) a second inert, normally-liquid organic diluent such as propylene glycol, and (c) a suspending agent, e.g., silica, (d) under agitation which is sufficient to provide intimate mixing of said ethylene oxide polymer and said suspending agent with said second diluent; and (e) recovering a stable dispersion comprising particulate ethylene oxide polymer and suspending agent in said second diluent.
    Type: Grant
    Filed: December 1, 1971
    Date of Patent: January 2, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Julius J. Stratta, Julian K. Rose, Herbert J. Paxton, Jr.
  • Patent number: 5473032
    Abstract: Coating composition containing one or several (meth)acrylic copolymers having hydroxyl groups, as well as one or several solvents and, optionally, water, special-effect pigments and/or coloring pigments, fillers and/or conventional lacquering additives, whereby the (meth)acrylic copolymer is essentially constructed from units based on the following monomers:a) 0.5-10.0% by weight of amides and/or N-substituted amides of acrylic acid and/or methacrylic acid,b) 5.0-30.0% by weight of phenylalkyl esters of acrylic acid and/or methacrylic acid,c) 10.0-30.0% by weight of hydroxyalkyl esters of acrylic acid and/or methacrylic acid having 2-8 C-atoms in the hydroxyalkyl residue,d) 0.6-7.5% by weight of acrylic acid and/or methacrylic acid, ande) 30.0-83.9% by weight of alkyl esters of acrylic acid and/or methacrylic acid having 1-18 C-atoms in the alkyl residue, andwhereby the sum of components a) to e) amounts in each case to 100.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: December 5, 1995
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Bederke, Hermann Kerber, Olaf Ley, Michael Prescher, Petra Kochert-Muhlenbeck
  • Patent number: 5408005
    Abstract: A process for preparing a rubber modified thermoplastic resin, in which a latex in aqueous emulsion is prepared in the presence of an ionic surfactant; a vinyl monomer insoluble or substantially insoluble in water is added, and the particles of the latex are transferred to the monomer to form an organic phase using a transfer agent of opposite charge to the surfactant; and a polymerization of the organic phase is performed.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: April 18, 1995
    Assignee: Norsolor
    Inventors: Philippe Heim, Gerard Riess
  • Patent number: 5304450
    Abstract: A process for the preparation of polymer particles which comprises dissolving a polymer in a solvent containing a block or graft steric stabilizer, and adding thereto a nonsolvent for the polymer, which nonsolvent functions as a solvent for the stabilizer chains of the block or graft steric stabilizer.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: April 19, 1994
    Assignee: Xerox Corporation
    Inventor: Anthony J. Paine
  • Patent number: 5266211
    Abstract: This invention concerns a method for precipitating polymers from a liquid using at least one precipitant fluid, including a feed line, a nozzle plate having at least one outlet orifice for a polymer containing fluid with the outlet orifice communicating with the feed line, at least one nozzle for at least one precipitant fluid, the axis of which is arranged approximately perpendicularly to the axis of the outlet orifice, a precipitation chamber positioned on the side of the nozzle plate wherein at least one nozzle for at least one precipitant fluid is located, a discharge line for discharging a mixture which contains the precipitated polymer and a degassing chamber which is connected to the discharge line.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: November 30, 1993
    Assignee: Bunawerke Huls GmbH
    Inventors: Walter Breuker, Hans Wagner, Eckhard Moller, Bernhard Schleimer
  • Patent number: 5214080
    Abstract: A process for the production of a nonaqueous dispersion-type resin having excellent dispersion stability and a uniform particle size, which comprises uniformly polymerizing in an aliphatic and/or alicyclic hydrocarbon-type organic solvent a vinyl monomer having a solubility parameter different by 1.1 or more from that of said organic solvent, or a vinyl monomer mixture containing at least 1% by weight of said monomer and a reactive resin soluble in said hydrocarbon-type organic solvent and having a molecular weight of 2,000 or more, and then replacing the organic solvent in the obtained uniform polymer solution with another organic solvent that does not dissolve the nonaqueous dispersion-type resin to thereby conduct phase inversion into a non-aqueous dispersion.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: May 25, 1993
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Goro Iwamura, Hidetoshi Konno, Akio Shoji
  • Patent number: 5188764
    Abstract: An aqueous dispersion comprising composite colloidal particles having an average particle size of 0.05 to 1.0 micrometer each of which comprises a core made of a copolymer comprising 99-100% by weight of tetrafluoroethylene and 0 to 1% by weight of a fluorine-containing olefin which is copolymerizable with tetrafluoroethylene and a shell made of at least one thermoplastic polymer resin selected from the group consisting of ethylene/tetrafluoroethylene base copolymers, ethylene/chlorotrifluoroethylene base copolymers and vinylidene fluoride/hexafluoroisobutene base copolymers, from which composite fluorine-containing polymer particles having good dispersibility in other polymer are prepared and from which an organosol of the composite fluorine-containing polymer particles is formed.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: February 23, 1993
    Assignee: Daikin Industries Ltd.
    Inventors: Tetsuo Shimizu, Seitaro Yamaguchi
  • Patent number: 5176959
    Abstract: Crosslinked polymer microparticles are produced by emulsion polymerizing a monomer mixture containing a crosslinking monomer having a plurality of polymerizable sites in the molecule in an aqueous medium containing a polymeric amide-acid and a neutralizing base as an emulsifier/dispersant. The polymer microparticles are incorporated to thermosetting coating compositions for rheology control and other purposes. The amide-acid moieties of the emulsifier/diapersant are capable upon curing of the coating composition of cyclizing into an imide ring and the polymer amide-acid retained on the polymer microparticles, which imide moieties do not adversely affect the properties of cured films of the coating composition.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: January 5, 1993
    Assignee: Nippon Paint Company Limited
    Inventors: Mitsuo Yamada, Ryuzo Mizuguchi
  • Patent number: 5084506
    Abstract: A stable, nonaqueous microparticle dispersion of the polymeric reaction product of reactants containing an aminoplast resin and a hydroxyl containing material is characterized in that less than 20 percent of the polymer microparticles have a mean diameter greater than 5 microns, further characterized in that at a total solids content of 60 percent the Brookfield viscosity is less that 1000 centipoise measured at 50 RPM using a number 3 spindle at 25.degree. C., the polymeric reaction product being prepared from reactants which are substantially free of acrylic polymer in a nonaqueous medium which is inert to the reactants.Stable nonaqueous microparticle dispersions characterized as above can also be prepared by the self condensation of an aminoplast resin.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: January 28, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Dennis L. Faler, Gregory J. McCollum, James B. O'Dwyer, Marvis E. Hartman
  • Patent number: 5075352
    Abstract: Stable latices of polymer particles insoluble in non-polar organic solvents are prepared by the attachment of the insoluble polymer particles to a stabilizer soluble in the non-polar organic solvent. The stabilizer comprises the adduct of a polymer bearing pendant azlactone groups which is soluble in non-polar organic solvents and an ethylenically unsaturated nucleophile bearing an azlactone reactive nucleophilic moiety.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: December 24, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Mohamed A. Elmasry
  • Patent number: 5070135
    Abstract: The present invention pertains to a dispersion in an organic liquid of an acrylate-based and/or methacylate-based addition polymer stabilized by a graft copolymer of a polybutadiene with particular monomer components grafted thereon. The present invention also pertains to coating compositions based upon such a dispersion and to a process of coating a substrate with the coating composition. Finally, the present invention relates to a process for the preparation of the stabilizer for the dispersion.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: December 3, 1991
    Assignee: Akzo N.V.
    Inventor: Roelof Buter
  • Patent number: 4997857
    Abstract: A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared where the starting polyol is capped with alkylene oxide and/or the adduct formed between the starting polyol and the reactive unsaturated compound is capped with ethylene oxide.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: March 5, 1991
    Assignee: Arco Chemical Technology, Inc.
    Inventors: John F. Timberlake, Siusun K. Leung, Edgar G. Shook, Donald W. Simroth, Richard C. Myerly
  • Patent number: 4927867
    Abstract: A process for preparing a rubber modified thermoplastic resin, in which a latex in aqueous emulsion is prepared in the presence of an ionic surfactant; a vinyl monomer insoluble or substantially insoluble in water is added, and the particles of the latex are transferred to the monomer to form an organic phase using a transfer agent of opposite charge to the surfactant; and a polymerization of the organic phase is performed.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: May 22, 1990
    Assignee: Norsolor
    Inventors: Philippe Heim, Gerard Riess
  • Patent number: 4895673
    Abstract: Disclosed is an emulsion having a discontinuous phase which comprises at least two compounds of different structural formula selected from the group consisting of solvent-soluble polymers, oligomers, and monomers dissolved in an organic solvent, and a discontinuous phase which comprises an organic non-solvent for the compounds. A method of coating a conductor with a polymeric alloy is also disclosed. The conductor is immersed in the emulsion and a direct current is applied between the conductor and the emulsion sufficient to cause the discontinuous phase of the emulsion to migrate to the conductor and deposit on it. The conductor is removed from the emulsion and is dried and the deposit is cured.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: January 23, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: William M. Alvino, Ram S. Raghava
  • Patent number: 4842936
    Abstract: Composite basic resin particles each of which comprises a granular body portion of crosslinked polymer having a mean diameter of 0.01 to 10.mu. and a number of linear polymer chains, a part of the respective linear polymer chain penetrating into the inside of the granular body portion and the remaining part extending outwardly therefrom, and at least part of said linear polymer chains bearing basic functional groups selected from amino groups and ammonium group. A dispersion of said composite basic resin particles in an organic solvent is useful as a resinous vehicle for coating compositions.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: June 27, 1989
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Akio Kashihara, Keizou Ishii, Shinichi Ishikura
  • Patent number: 4777199
    Abstract: A coating composition comprising(A) a film-forming polymer having functional group(s) capable of reacting with the crosslinking agent (D) hereinafter referred to and cationic or anionic functional group(s),(B) a volatile organic liquid diluent in which the polymer (A) is dissolved,(C) crosslinked polymer microparticles bearing anionic or cationic functional group(s) whose electric charge is opposite to that of the film-forming polymer, which are insoluble in the combination of the film-forming polymer (A) and the diluent (B) and are maintained in a stabilized state of dispersion therein, and(D) a crosslinking agent dissolved in the diluent (B).
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: October 11, 1988
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Keizou Ishii, Akio Kashihara
  • Patent number: 4777200
    Abstract: Dispersions in water-immiscible liquid of water-soluble or water-swellable polymer particles are stabilized by use of an aqueous emulsion of water insoluble viscosifying polymer particles that are swellable or soluble in the water-immiscible liquid. After adding the emulsion to the water-immiscible liquid, water is removed from around the particles of the viscosifying polymer, preferably by absorption into the water swellable or soluble polymer particles. Water-immiscible liquids in general can be thickened particularly effectively by use of an aqueous emulsion of water insoluble viscosifying polymer particles that are swellable but insoluble in the water-immiscible liquid. These insoluble particles have a dry size below 10 .mu.m and are formed from monomers of which 80 to 100% are hydrophobic, 30 to 100% are polar and hydrophobic, 0 to 20% are hydrophilic and not more than 30% by weight are aromatic.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: October 11, 1988
    Assignee: Allied Colloids Ltd.
    Inventors: Brian Dymond, John Langley, Malcolm Hawe
  • Patent number: 4753708
    Abstract: A film forming dispersion for the heat sealing of dissimilar substrate said dispersion comprising at least two different types of polymers having different adhesive properties in an organic solvent system, at least one of the polymer types being fully miscible at room temperature with the organic solvent system, both of said two polymer types having an acid number ranging from 0 to 160 mg KOH per gram of polymer, and said dispersion further containing a third graft polymer containing components corresponding to said two different polymer types.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: June 28, 1988
    Assignee: Rohm GmbH
    Inventors: Gerhard Markert, Horst Pennewiss, Waldemar Schleier, Reiner Schnee
  • Patent number: 4749506
    Abstract: A microgel dispersion characterized by that an oil-soluble surface active agent is adsorbed or adhered onto a gel consisting of a fine particle substance and a polymer, and said gel is dispersed in a non-aqueous organic solvent.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: June 7, 1988
    Assignee: Ricoh Co., Ltd.
    Inventors: Ayao Kitahara, Kijiro Konno
  • Patent number: 4746714
    Abstract: Stabilized acrylic resin having a core of acrylic polymer and a substantially linear stabilizer having one polymerizable functional group at one end of the stabilizer molecule, the resins being useful as rheology control agents for coating compositions.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: May 24, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harry J. Spinelli, Christopher Scopazzi, Joseph A. Antonelli
  • Patent number: 4721751
    Abstract: A polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound is prepared by a process which comprises reacting a polyisocyanate, at least a portion of which is a diisocyanate, with a polyfunctional amine containing primary and/or secondary amino groups in the presence of:(a) a polyol, at least a portion of which is a polymeric polyol containing ethylenic unsaturation and having a carbon to oxygen ratio of at least 4/1;(b) a diluent which is an ethylenically unsaturated compound free of active hydrogens; and(c) an active hydrogen containing polymerizable ethylenically unsaturated compound; under conditions sufficient to form a polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound.The aforedescribed urea urethane polymer dispersions are particularly useful in formulating curable compositions suitable for use as adhesives and sealants.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: January 26, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Raymond F. Schappert, Joseph M. Makhlouf, Michael M. Chau
  • Patent number: 4677151
    Abstract: What are disclosed are a method for making a concentrated emulsion of an olefin copolymer in a carrier medium suitable for use in oil additives, without previous dissolution of the olefin copolymers, by preparing a solution of an emulsifier of the typeA-X,wherein A represents a sequence or segment of an olefin copolymer, of hydrogenated polyisoprene, or of an hydrogenated butadiene/isoprene copolymer, and X represents a sequence or segment composed of polyacrylate and/or polymethacrylate, in a carrier medium which does not substantially dissolve the olefin copolymers but does dissolve the X sequences, and then emulsifying an olefin copolymer in the solution of the emulsifier in the carrier medium at a temperature from 40.degree. C. to 150.degree. C. with the use of shearing forces, as well as emulsions made by such a method.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: June 30, 1987
    Assignee: Rohm GmbH
    Inventors: Horst Pennewiss, Roland Schweder, Wolfgang Tschepat
  • Patent number: 4652589
    Abstract: A normally liquid, stable polymer/polyol composition which imparts improved combustion resistance to polyurethane foams prepared therefrom while retaining satisfactory foam tensile properties are formed by polymerizing in the presence of a free radical catalyst and in the essential absence of an alkyl mercaptan, (1) from about 25 to about 60 weight percent of an ethylenically unsaturated monomer or monomers, for example, a mixture of acrylonitrile and styrene in a weight ratio respectively of 25:75 to 0:100, dissolved or dispersed in (2) from about 40 to about 75 weight percent of a polyol comprising a base polyol having a hydroxyl number of less than about 150, wherein the polymer is characterized by a crosslinking coefficient of less than 55 and an intrinsic viscosity of at least 0.30.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: March 24, 1987
    Assignee: Union Carbide Corporation
    Inventors: Donald W. Simroth, Frank E. Critchfield, Richard C. Myerly
  • Patent number: 4639394
    Abstract: Non-aqueous dispersions of polymeric microparticles are disclosed. The dispersions are prepared by free radical initiated addition polymerization of a polymerizable monomer in the presence of a dispersion stabilizer in an organic liquid. The dispersion stabilizer is a styrene polymer terminated with an alpha, beta-ethylenically unsaturated group. The polymeric microparticles are useful as rheology modifiers in coating compositions.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: January 27, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, Rostyslaw Dowbenko
  • Patent number: 4611028
    Abstract: Copolymers adapted for use as stabilizers in dispersions and stable dispersions, including crosslinked dispersions containing microgel particles, prepared therefrom. Stabilizer bears pendent ethylenic unsaturation capable of reacting with monomers employed in random copolymerization used to make the dispersion polymer. Stabilizer comprises a random copolymer segment of ethylenically unsaturated monomers, some of which are characterized in that homopolymers thereof would be substantially insoluble in the organic liquid used to form the stable dispersion and some of which are characterized in that homopolymers thereof would be substantially soluble in the organic liquid used to form the stable dispersion.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 9, 1986
    Assignee: Ford Motor Company
    Inventors: Stephen C. Peng, John D. Nordstrom
  • Patent number: 4605720
    Abstract: Crosslinked, preferably acrylic, preferably melamine crosslinked, polymer particles formed by reactions comprising free radical addition polymerization of:(a) between about 0.5 and about 20 weight percent each of first and second monomers, each bearing functionality capable of crosslinking reaction with the other, wherein (i) either both additionally are ethylenically unsaturated monomers or (ii) the first monomer additionally is ethylenically unsaturated and the second monomer bears multiple crosslinking functionality and no ethylenic unsaturation; and(b) between about 60 and about 99 weight percent of at least one other monoethylenically unsaturated monomer;in the presence of (I) an organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer, and (II) polymeric dispersion stabilizer bearing one long chain non-polar hydrocarbon molecule and one vinyl unsaturation.
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: August 12, 1986
    Assignee: Ford Motor Company
    Inventors: Mohinder S. Chattha, Joseph C. Cassatta
  • Patent number: 4584124
    Abstract: In order to counteract the electrolyte sensitivity of synthetic thickeners they are used together with natural thickeners. These mixtures are in turn associated with other problems which in many cases can lead to an impairment of the appearance of the goods in dyeings of polyester fibers with disperse dyestuffs.According to the invention these problems can be bypassed if the thickener dispersions, in addition to the thickener mixtures of synthetic and natural products, contain as the continuous phase solvents from the series of the alkyloxypropylates.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: April 22, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Sienling Ong
  • Patent number: 4568474
    Abstract: This invention is directed to acid neutralizing additives for engine oils, which additives comprise polymeric particles bearing epoxide groups on the polymerized particle and a non-polar polymeric stabilizer attached thereto.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: February 4, 1986
    Assignee: Ford Motor Company
    Inventors: Ares N. Theodore, Mohinder S. Chattha
  • Patent number: 4568473
    Abstract: This invention is directed to acid neutralizer additives for engine oils, which additive comprise polymeric particle bearing amine functionality on the polymerized particle and a non-polar polymeric stabilizer attached thereto.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: February 4, 1986
    Assignee: Ford Motor Company
    Inventors: Ares N. Theodore, Mohinder S. Chattha
  • Patent number: 4533695
    Abstract: Crosslinked, preferably acrylic, preferably melamine crosslinking, polymer particles characterized in that the particles are formed by reactions comprising free radical addition polymerization of:(a) between about 0.5 and about 20 weight percent each of first and second monomers wherein said first monomer bears ethylenic unsaturation and functionality capable of crosslinking reaction with the other functionality present on the second monomer bearing multiple other functionalities and bearing no ethylenic unsaturation; and(b) between about 99 and about 60 weight percent of at least one other monethylenically unsaturated monomer;in the presence of (I) an organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer, and (II) polymeric dispersion stabilizer wherein the reaction is carried out at elevated temperatures such that the dispersion polymer forms and then is crosslinked.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: August 6, 1985
    Assignee: Ford Motor Company
    Inventors: Ares N. Theodore, Mohinder S. Chattha
  • Patent number: 4530957
    Abstract: Crosslinked, preferably acrylic, preferably melamine crosslinked, polymer particles formed by reactions comprising free radical addition polymerization of:(a) between about 0.5 and about 20 weight percent each of first and second monomers, each bearing functionally capable of crosslinking reaction with the other and additionally wherein the first monomer is ethylenically unsaturated and the second monomer bears multiple crosslinking functionality and no ethylenic unsaturation,(b) between about 60 and about 99 weight percent of at least one other monoethylenically unsaturated monomer;in the presence of (I) an organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer, and (II) polymeric dispersion stabilizer wherein the precursor of the first segment of the stabilizer comprises a long chain hydrocarbon molecule having only one reactive group per molecule, preferably being a carboxyl group.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: July 23, 1985
    Assignee: Ford Motor Company
    Inventors: Ares N. Theodore, Mohinder S. Chattha
  • Patent number: 4528317
    Abstract: Crosslinked, preferably acrylic, polymer particles characterized in that the particles are formed by free radical addition polymerization of:(a) between about 0.8 and about 20 weight percent each of first and second ethylenically unsaturated monomers each bearing functionality capable of crosslinking reaction with the other; and(b) between about 98.4 and about 60 weight percent of at least one other monoethylenically unsaturated monomer;in the presence of (I) an organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer, and (II) polymeric dispersion stabilizer wherein the reaction is carried out at elevated temperatures such that the dispersion polymer forms and then is crosslinked the stabilizer comprises the reaction product of an acrylic polymer-hydrocarbon molecule adduct having hydroxyl functionality with unsaturated monoisocyanate.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: July 9, 1985
    Assignee: Ford Motor Company
    Inventors: Ares N. Theodore, Mohinder S. Chattha
  • Patent number: 4525499
    Abstract: A non-aqueous dispersion type resin composition comprising (I) a non-polar or slightly polar aliphatic hydrocarbon solvent as a dispersion medium, and (II) particles stably dispersed in the dispersion medium, wherein each of said particles is composed of:(A) from 20 to 70% by weight of a disperse particle made of (a) a polyester-modified vinyl copolymer containing a hydroxyl group, (b) a vinyl copolymer containing a hydroxyl group or (c) a vinyl ester-modified vinyl copolymer containing a hydroxyl group, and(B) from 80 to 30% by weight of a vinyl resin dispersion stabilizer surrounding the disperse particle as a protective layer, which has a component compatible with the disperse particle or is chemically bonded thereto and which is solvated by the dispersion medium, said dispersion stabilizer being composed of (i) an N-alkoxymethylated monomer of an .alpha., .beta.-monoethylenically unsaturated carboxylic acid amide and (ii) an .alpha., .beta.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: June 25, 1985
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Masaaki Hayashi, Hiroharu Sasaki
  • 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: 4503207
    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: July 5, 1983
    Date of Patent: March 5, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Duane A. Heyman