Nitrogen Of Ring Is Bonded Directly Or Indirectly To Extracyclic Ethylenic Moiety Patents (Class 526/263)
  • Patent number: 6248849
    Abstract: A process for producing a microporous oil sorbent polymer comprising the steps of: dissolving a polyunsaturated monomer in a silicone organic solvent to provide a monomer mixture containing more than 90% by weight polyunsaturated monomer; polymerizing said monomers by precipitation polymerization, under an inert atmosphere to precipitate microporous, micro-particles in the form of micro-particles, agglomerates and aggregates having a bulk density of about 0.02 gm/cm3 to about 0.01 gm/cm3 and capable of adsorbing at least about 20% by weight organic materials based on the total weight of polymer plus adsorbed organic material.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: June 19, 2001
    Assignee: AMCOL Corporation
    Inventor: Milan F. Sojka
  • Patent number: 6225429
    Abstract: A process of making a vinyl caprolactam (VCL)-based polymer which comprises suspension polymerizing the monomers in aqueous medium in the absence of an added protective colloid, wherein polymer formed at an early stage of the polymerization functions as a dispersing agent to maintain polymer particles suspended in water throughout the polymerization.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: May 1, 2001
    Assignee: ISP Investments Inc.
    Inventors: Jui-Chang Chuang, Michael A. Drzewinski
  • Patent number: 6218451
    Abstract: The present invention relates to the use of a photoreactive and UV absorbing piperidine compound of the formula A below and of a mixture consisting of this piperidine compound and at least one selected UV absorber as light stabilizers in coating materials, preferably in automotive coating materials. The invention also provides a method of stabilizing coating materials against the degradation of the polymer material present in the coating material, as induced by the action of atmospheric oxygen, heat and/or UV light, and the coating materials themselves that are stabilized in this way.
    Type: Grant
    Filed: October 12, 1998
    Date of Patent: April 17, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Karl Bechtold, Gilbert Ligner
  • Patent number: 6218490
    Abstract: Acrylic copolymers for use as additives for inhibiting paraffin deposition in crude oils, and compositions containing the oils and said additives, are disclosed. Specifically, polymeric additives useful for inhibiting paraffin deposition in and improving the flow properties of crude oils, and compositions containing the crude petroleum oils and said additives, are disclosed. Said additives are essentially alcohol acrylate copolymers comprising 10-50 carbons with special chain distributions, as well as the corresponding 2- and/or 4-vinylpyridine terpolymers.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: April 17, 2001
    Assignee: CECA S.A.
    Inventors: Jean-Francois Brunelli, Stephane Fouquay
  • Patent number: 6201047
    Abstract: The invention relates to the use of piperidine compounds of the formula I in which R1 is hydroxyl, lower alkyl, lower alkoxy, R2 is a substituted or unsubstituted, mono- or bicyclic radical of aromatic type, R3 is oxygen, —NH— or —N(C1-4-alkyl)- and R8 independently at each occurrence is hydrogen or methyl for preparing light-stabilized, EPDM-modified polypropylene which is employed in particular in automotive construction, such as for shock absorbers, cover strips and the like. A further subject of the invention is the combination of abovementioned piperidine compounds with known UV absorbers. The invention also relates to EPDM-modified polypropylene which contains from 0.05 to 2.5% by weight, preferably from 0.1 to 0.6% by weight, of a radical of a compound of the above formula I, and to products produced therefrom.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 13, 2001
    Assignee: Clariant Fianance (BVI) Limited
    Inventors: Lajos Avar, Andreas Thuermer, Gilbert Ligner
  • Patent number: 6201087
    Abstract: A polymer having the formula wherein M1 and M2 signify monomer units for homo- or copolymers. “x” and “y” indicate the mole fractions of the comonomers, with in each case 0<x≦1 and 0≦y<1 and x+y=1. The symbol “p” signifies 4 to 30,000 and “S1” and “S2” signify spacer units. “Q1” signifies a structural unit of the formula —A—(Z1—B)z—Z2— and “Q2” signifies a structural unit of the formula —A—(Z1—B)zR1. “A” and “B” each independently signify pyridine-2,5-diyl, pyrimidine-2,5-diyl, 1,4—Cyclohexylene,1,3-dioxane-2,5-diyl or optionally substituted 1,4-phenylene.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: March 13, 2001
    Assignee: Rolic AG
    Inventors: Rolf Peter Herr, François Herzog, Andreas Schuster
  • Patent number: 6197476
    Abstract: The present invention provides a cyclic dione polymer, which is a homopolymer or a copolymer of a cyclic dione monomer selected from those represented by formulae (I) and (II) wherein A and B may be the same or different and are independently selected from the group consisting of halogen, hydrogen, C3-20 cyclic or pericyclic alkyl, C1-20 linear and branched alkyl, C6-20 aryl, C7-20 arylalkyl, C7-20 alkylaryl, silyl, alkylsilyl, germyl, alkylgermyl, alkoxycarbonyl, acyl, and a heterocylic group; or, A and B are linked together to form a C3-20 saturated or unsaturated cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; C is selected from the group consisting of oxygen, sulfur, wherein each R1 is independently selected from C1-20 alkyl and phenyl.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: March 6, 2001
    Assignee: Industrial Technology Research Institute Everlight Chemical Industrial Corporation
    Inventors: Sheng-Yueh Chang, Bang-Chein Ho, Jian-Hong Chen, Ting-Chun Liu, Tzu-Yu Lin
  • Patent number: 6177068
    Abstract: A cosmetically active oil-in-water (o/w) or water-in-oil (w/o) emulsion, for topical applications comprising (a) the reaction product of a non-aqueous, heterogeneous polymerization of a liquid reaction mixture containing between about 5 and about 70%, preferably 10-40%, by weight, of N-vinylamide monomer in an oil solvent, a free radical initiator, between about 0.1 and about 2.5% by weight of a crosslinking agent and optionally a surfactant, (b) water sufficient to form said emulsion, (c) a cosmetically active hair and/or skin treating chemical or chemical composition and optionally (d) a surfactant.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: January 23, 2001
    Assignee: ISP Investments Inc.
    Inventors: Jenn S. Shih, Jui-Chang Chuang, Krystyna Plochocka
  • Patent number: 6172129
    Abstract: (Meth)acrylate functional compound which is the reaction product of a cyclic secondary amine and a poly(meth)acrylate having at least three acrylate or methacrylate groups, useful for radiation curable coating or ink composition having low viscosity, low volatility, and high cure rate under radiation. Process of preparing a coating or ink composition using such compound. Radiation cured coating or ink based on such composition. Coated or printed article having such a cured coating or ink based on such composition.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 9, 2001
    Assignee: Sartomer Technologies, Inc.
    Inventors: Ming Xin Fan, Gary Ceska, James P. Horgan, Henry C. Miller, Edward A. Jurczak
  • Patent number: 6160035
    Abstract: The oil base pigment ink composition for writing tools comprising at least a pigment, a basic resin having an amino group and an alcohol base solvent and/or a glycol ether base solvent, wherein the basic resin described above is a resin copolymerized monomers containing at least one of a vinyl monomer having a heterocyclic amino group, a vinyl monomer having an aliphatic primary amino group, a vinyl monomer having an aliphatic secondary amino group or a vinyl monomer having an aliphatic tertiary amino group and has preferably a weight average molecular weight of 50000 or less. The pigment is preferably carbon black, particularly preferably carbon black having a pH of 6 or less.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: December 12, 2000
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventor: Hiroyuki Idogawa
  • Patent number: 6136935
    Abstract: This invention discloses a composition and a method of using the composition to cement a borehole penetrating a subsurface earth formation. The composition, the random polymerization product of two or three different vinyl-containing monomers including a vinylamide morpholine derivative, operates to reduce fluid loss from the cement slurry used to cement the borehole to the subsurface formation.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: October 24, 2000
    Assignee: Fritz Industries, Inc.
    Inventors: Rebecca G. Udarbe, Kim Hancock-Grossi
  • Patent number: 6124415
    Abstract: What is described herein is a crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP).
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: September 26, 2000
    Assignee: ISP Investment Inc.
    Inventors: Edward G. Malawer, Victor Kabanov, Kolazi S. Narayanan, Michael A. Tallon, Susan Y. Tseng, Philip F. Wolf
  • Patent number: 6124416
    Abstract: An aqueous emulsion comprising at least one (co)polymer is provided. The (co)polymer is derived from a monomer having formula (1):(R.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO--L--).sub.q A(--NCOblock).sub.p(1)wherein R.sub.1, R.sub.2, and R.sub.3, which are the same or different, represent a hydrogen or a group selected from hydrocarbon chains comprising 1 to 12 carbon atoms, halogens, and electron-withdrawing functional groups; L, which is the same or different, represents a divalent hydrocarbon radical comprising 2 to 12 carbon atoms; A represents an organic backbone which has n free valencies, n is a number between 2 and 7, and is equal to p+q; NCOblock represents a protected isocyanate functional group; p is a number between 1 and 6; and q is a number between 1 and 6.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: September 26, 2000
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Desbois, Roland Reeb, Joel Richard, Fran.cedilla.oise Truchet
  • Patent number: 6114463
    Abstract: The present invention relates to (co)polymers which contain at least one repeating structural chain unit of the general formula (1) and/or (2) and optionally repeating units of the general formula (3) ##STR1## in which L.sup.1 and L.sup.2, independently of each other, represent a photoluminescent grouping, a process for their preparation, their use in electroluminescent devices and the electroluminescent devices.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: September 5, 2000
    Assignee: Bayer AG
    Inventors: Yun Chen, Burkhard Kohler, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
  • Patent number: 6096899
    Abstract: In one embodiment, the invention provides a polymer comprising imidazole ring units having nitrogen at the 1 and 3 positions of the ring; a carbon at each of the 2, 4 and 5 positions of the ring; and radical substituents G1 and G2 carried at the 4 and 5 positions. G1 and G2 are each independently selected from cyano, substituents derived from cyano, and substituents which replace cyano. The polymers formed by at least two of the cyclic imidazole units. In another embodiment, the invention provides new imidazole compounds usable as monomers to form the polymers. In still another embodiment, the invention provides a method for using the polymers as a coupling/activator for synthon synthesis.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: August 1, 2000
    Assignee: The Regents of the University of Michigan
    Inventors: Paul G. Rasmussen, Sarah E. Reybuck, David M. Johnson, Richard G. Lawton
  • Patent number: 6075107
    Abstract: The use of copolymers ofA) 60-99 mol % of N-vinylpyrrolidone, andB) 1-40 mol % of a monomer selected from the group ofb1) C.sub.8 -C.sub.30 -alkyl esters of monoethylenically unsaturated C.sub.3 -C.sub.8 -carboxylic acids,b2) N-alkyl- or N,N-dialkyl-substituted amides of acrylic acid or of methacrylic acid with C.sub.8 -C.sub.18 -alkyl radicals, orb3) vinyl esters of aliphatic C.sub.8 -C.sub.30 -carboxylic acids, or mixtures of these monomers,as surface-active substances in preparations of water-insoluble substances.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: June 13, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Kothrade, Helmut Meffert, Gunther Berndl, Axel Sanner, Stefan Stein, Volker Schehlmann, Folker Ruchatz
  • Patent number: 6051670
    Abstract: A gelling composition and a process for using the gelling composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: April 18, 2000
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Aly-Anis Hamouda, Odd Ivar Eriksen
  • Patent number: 6048522
    Abstract: A controlled-release, drug-delivery, emulsion composition for topical application comprising (a) the reaction product of the non-aqueous, heterogeneous polymerization of a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical initiator, optionally in the presence of a crosslinking agent and/or a surfactant, wherein the oil solvent is present in an amount sufficient to keep the resultant polymer in a stirrable state throughout the polymerization, (b) water, (c) a surfactant and (d) a pharmaceutical medicament.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: April 11, 2000
    Assignee: ISP Investments Inc.
    Inventors: Krystyna Plochocka, Jui-Chang Chuang, Jenn S. Shih, Anil Menon, Nadhamuni G. Nerella
  • Patent number: 6046290
    Abstract: The invention provides an optical method which permits, with the aid of 6 simple measurements, a conclusion regarding the suitability of antennas (groups which can absorb electromagnetic radiation) for incorporation into photoaddressable polymers.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: April 4, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Berneth, Uwe Claussen, Serguei Kostromine, Ralf Neigl, Joachim Rubner, Ralf Ruhmann
  • Patent number: 6028141
    Abstract: Novel polyfunctonal glyoxylated compounds and compositions containing the same are disclosed which are particularly suitable for use as crosslinking components in curable compositions and also find use in imparting wet adhesion properties to water-based paints and coatings. A process for preparing novel polyfunctional glyoxylated compounds is also disclosed.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: February 22, 2000
    Assignee: Cytec Technology Corp.
    Inventors: Balwant Singh, Laurence Wu-Kwang Chang
  • Patent number: 6025317
    Abstract: Porous polymers which are in powder form and contain N-vinylimidazole units and which are obtainable by free-radical precipitation polymerization ofa) 5-100% by weight of at least one N-vinylimidazole of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and are H, C.sub.1 -C.sub.4 -alkyl, N-vinylaxazolidone, N-vinyltriazole, 4-vinylpyridine N-oxide or mixtures of said monomers,b) 0-95% by weight of other copolymerizable monoethylenically unsaturated monomers andc) 0-50% by weight of at least one monomer with at least two non-conjugated ethylenic double bonds in aqueous solution which contains 0.5-30% by weight of at least one electrolyte and, based on the monomers employed, 0.5-80% by weight of at least one surfactant, a process of the preparation thereof, and the use of the porous polymers.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: February 15, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Stein, Dieter Boeckh, Christian Schade, Gerhard Rossler
  • Patent number: 6011160
    Abstract: What is described herein is a crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP).
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: January 4, 2000
    Assignee: ISP Investments Inc.
    Inventors: Edward G. Malawer, Victor Kabanov, Kolazi S. Narayanan, Michael A. Tallon, Susan Y. Tseng, Philip F. Wolf
  • Patent number: 5990198
    Abstract: Disclosed is an ink composition which comprises (1) water; (2) an anionic dye; and (3) a copolymer of vinyl pyrrolidinone and a vinyl imidazolium salt. Also disclosed are methods for using the aforementioned ink compositions in ink jet printing processes.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: November 23, 1999
    Assignee: Xerox Corporation
    Inventor: William M. Schwarz, Jr.
  • Patent number: 5955566
    Abstract: Thermosetting polymers with high temperature capability for composite and adhesive applications are disclosed. Inhibitors for improving pot life, gel time and storage stability are disclosed. These polymers are ideally suited for adhesives and RTM, resin film infusion, and prepreg methods to make polymer matrix, fiber reinforced composite parts.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: September 21, 1999
    Assignee: Cytec Technology Corporation
    Inventors: Jean Lee, Jack Douglas Boyd, Albert Kuo
  • Patent number: 5945457
    Abstract: A hemocompatible composition comprising a polymer containing at least one pharmacologic material chemically bonded to a polymer backbone. Such compositions may be obtained by reacting a pharmacologic material with a compound containing a polymerizable group (e.g., an acyl halide) and thereafter either copolymerizing the acylated material with one or more copolymerizable monomers or first irradiating a backbone polymer and thereafter grafting the acylated pharmacologic material onto the irradiated polymer. The resulting products are hemocompatible and may be used in the manufacture of medical devices which come in contact with blood or other bodily fluids. The advantage of chemically bonded pharmacologic materials is that they are not leached out and retain their pharmaceutical effectiveness for a long period of time. The compositions may contain one or more additional pharmacologic materials which are physically admixed with polymers containing bonded pharmacologic materials.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 31, 1999
    Assignee: A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Science
    Inventors: Nicolai A. Plate, Lev I. Valuev, Lubov D. Uzhinova, Vladimir A. Sinani
  • Patent number: 5929182
    Abstract: Novel sulfur, oxygen and nitrogen-containing heterocyclic monomers are provided which may be used to produce conductive graft copolymers.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: July 27, 1999
    Assignee: Adhesives Research, Inc.
    Inventor: Michael J. Zajaczkowski
  • Patent number: 5922653
    Abstract: A composition and a process for using the composition for applications in a subterranean formation are provided. The composition comprises a clay, a polymer, and a liquid. The polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The composition can be used as or in drilling fluids, workover fluids, completion fluids, or combinations of any two or more thereof.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: July 13, 1999
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Bharat B. Patel, Wayne S. Stewart
  • Patent number: 5912312
    Abstract: Homogeneous copolymers of 60-99 mole % of vinyl pyrrolidone (VP) and 1-40 mole % 2-methylene-1,3-dioxepane (MDO), preferably 85-95 mole % VP and 5-10 mole % MDO, having a K-value of about 30-50, and a Tg of about 124-138.degree. C., are described herein. The copolymers are hydrolytically degradable in aqueous acid or basic solutions and biodegradable.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 15, 1999
    Assignee: ISP Investments Inc.
    Inventors: Yuanzhen Zhong, Philip F. Wolf, Edward G. Malawer, Kolazi S. Narayanan
  • Patent number: 5891971
    Abstract: A process for the preparation of a resin comprising:heating a mixture of at least one free radical polymerizable monomer, a free radical initiator compound, a stable free radical compound, and a reducing agent.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: April 6, 1999
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Marion H. Quinlan, Michael K. Georges, H. Bruce Goodbrand
  • Patent number: 5883210
    Abstract: A gelling composition and a process for using the gellimg composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: March 16, 1999
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Aly-Anis Hamouda, Odd Ivar Eriksen
  • Patent number: 5872200
    Abstract: A paper coating formulation and a process for making a paper coating formulation having an improved strength and blister resistance including an aqueous medium having dispersed therein a functionally effective amount of a finely divided mineral filler and a latex binder containing copolymerized acid functional and amine functional monomers in each polymer molecule.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: February 16, 1999
    Assignee: GenCorp Inc.
    Inventors: Satish C. Sharma, Charles M. Kausch, Ronald D. Mohan, Raymond J. Weinert
  • Patent number: 5869588
    Abstract: The invention relates to novel 2-hydroxyphenyltriazines and to homopolymers and copolymers obtainable therefrom, as described in greater detail in claims 1 and 5; the novel compounds can be used as UV absorbers in or for organic materials.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: February 9, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Vien Van Toan, David George Leppard, Gerhard Rytz, Norbert Wurms, Pascal Hayoz
  • Patent number: 5869032
    Abstract: Quaternized copolymers suitable as active ingredients in hair styling compositions are obtainable from N-vinylimidazoles, N-vinylcaprolactam, N-vinylpyrrolidone and, if required, further monomers.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: February 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Jurgen Tropsch, Axel Sanner, Peter Hossel, Hans-Jurgen Raubenheimer, Christian Schade
  • Patent number: 5863662
    Abstract: A terpolymer for ink jet recording comprises by weight, 1-99% of a vinyl lactam, preferably vinyl pyrrolidone, 1-99% of a polymerizable carboxylic acid, preferably acrylic acid and 1-99% of 2-carboxyethyl (meth)acrylate, preferably crosslinked with a polyfunctional aziridine, This terpolymer forms water-insoluble coatings on a support such as paper or polyester which are particularly receptive to water-based ink jet printing inks.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: January 26, 1999
    Assignee: ISP Investments Inc.
    Inventors: John C. Hornby, Domingo I. Jon, Jenn S. Shih
  • Patent number: 5856434
    Abstract: Use in electrooptical switching and display devices of a polymer comprising conjugatively linked chromophore segments whose emission properties are determined by the emission properties of the individual chromophore segments.Electroluminescence devices comprising the polymers of the present invention have, inter alia, a high color purity. The polymers used according to the present invention enable, in particular, blue and white electroluminescence to also be achieved.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: January 5, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Roland Stern, Hermann Schenk, Josef Salbeck, Thomas Stehlin, Ullrich Scherf, Klaus Mullen, Gunther Leising
  • Patent number: 5852140
    Abstract: Disclosed is a process for the preparation of a polymer which comprises effecting bulk polymerization of a mixture of at least one monomer, a free radical polymerization initiator, and a stable free radical agent until from about 10 to about 50 weight percent of the monomer has been polymerized; optionally adding additional free radical initiator; optionally adding a colorant; dispersing with a high shear mixer the aforementioned partially polymerized mixture in water containing a stabilizing component selected from the group consisting of non-ionic and ionic water soluble polymeric stabilizers to obtain a suspension of particles with an average diameter of from about 0.1 to about 10 microns; polymerizing the resulting suspension to form said polymer.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: December 22, 1998
    Assignee: Xerox Corporation
    Inventors: Michael K. Georges, Raj D. Patel
  • Patent number: 5840813
    Abstract: Method for homopolymerization of polyorganosiloxane macromonomers having acryloxy or methacryloxy groups. A miniemulsion of a methacryloxy functional polydimethylsiloxane macromonomer was prepared by mixing the macromonomer with a surfactant(s), and subjecting it to a high shear device. The macromonomer was polymerized in the miniemulsion by using a free radical initiator at high temperature. The amount of unreacted macromonomer is very low.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: November 24, 1998
    Assignee: Dow Corning Corporation
    Inventors: Gerald Alphonse Gornowicz, Linda Denise Kennan, Anil Kumar Saxena, Arthur James Tselepis
  • Patent number: 5720888
    Abstract: A method of flocculating coagulated and/or finely divided suspended matter in aqueous systems comprising adding to the system from 0.005 to 1 weight percent based on the dry weight of the coagulated and/or finely suspended matter of at least one water soluble cationic polymer selected from a water soluble cationic copolymer (I) composed of the polymerization reaction of an N-vinylamide with at least one cationic quaternary amine monomer.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: February 24, 1998
    Assignee: BetzDearborn Inc.
    Inventors: Lawrence Lu Kuo, Roger Yiming Leung
  • Patent number: 5719202
    Abstract: Polymerizable compounds based on N-acylamido-piperazines are provided. Such compounds have the formula: ##STR1## wherein: R.sup.1, R.sup.2, and R.sup.3 are each independently selected from the group consisting of hydrogen and lower alkyl,B is a linking group selected from the group consisting of carbonyl, sulfonyl, amide, and carboxyl;n is one or zero;R.sup.4 is a radical selected from the group consisting of a higher aliphatic group (i.e. at least four carbon atoms, preferably from about 6 to about 50 carbon atoms), a substituted higher aliphatic group, an alicyclic group, a heterocyclic group a non-benzenoid aromatic group, and a substituted aromatic group. These compounds can be incorporated into a polymerizable composition. The compounds is preferably present in said composition in a major amount on a mole percent basis of th polymerizable monomers. These polymerizable compositions are useful as coatings, particularly in formulations containing a photoinitiator susceptible to ultra-violet radiation.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: February 17, 1998
    Assignee: Henkel Corporation
    Inventor: Paul E. Share
  • Patent number: 5719247
    Abstract: The invention relates to a swellable, solvent-insoluble, tack-free, elastomeric, acrylate microsphere having a shear storage modulus of at least 6.0.times.10.sup.6 Pascals at 23.degree. C. and 1 Hz and a Tg of less than about 0.degree. C., wherein the microsphere comprises the polymerization product of:(a) about 40 to 99.7 equivalent weight % of free radically polymerizable monomer selected from the group consisting of alkyl acrylate esters of non-tertiary alkyl alcohols, the alkyl groups of the alcohols which comprise from about 4 to about 18 carbon atoms, alkyl methacrylate esters of non-tertiary alkyl alcohols, the alkyl groups of the alcohols which comprise from about 4 to about 18 carbon atoms, and mixtures thereof;(b) optionally, about 45 to about 1 equivalent weight % polar monomer copolymerizable with the monomer of element (a); and(c) about 10 to about 0.3 equivalent weight % of a multifunctional crosslinking agent.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: February 17, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Joaquin Delgado, Spencer F. Silver
  • Patent number: 5708107
    Abstract: A water-soluble polymer and a process for using the polymer for applications in a subterranean formation are provided. The polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The polymer can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: January 13, 1998
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Aly-Anis Hamouda, Odd Ivar Eriksen
  • Patent number: 5708106
    Abstract: Multi-functional vinylbenzyl and vinylphenyl pendant thymine (and uracil) groups are disclosed. The monomers can be used for the production of polymers useful in photoresist and other compositions as a function of the crosslinking reactivity of the pendant groups. Images in polymer are provided by exposure to actinic radiation (e.g., UV), containing such polymer and by solvent removal of non-exposed regions.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: January 13, 1998
    Assignee: Polaroid Corporation
    Inventors: J. Michael Grasshoff, Lloyd D. Taylor, John C. Warner
  • Patent number: 5705545
    Abstract: A compound of formula I for use in stabilizing polymeric material against effects such as light and heat ##STR1## in which R is hydrogen; oxygen; --OH; C.sub.1-24 alkyl; --O--CO--C.sub.1-24 alkyl; --O--CO--C.sub.1-24 alkyl; --O--CO-phenyl or --COR.sub.5 ; where R.sub.5 is --C(R.sub.3).dbd.CH.sub.2, C.sub.1-6 alkyl, phenyl, CO--C.sub.1-24 alkyl, --CO--phenyl, --NR.sub.7 R.sub.8, --CH.sub.2 --C.sub.6 H.sub.5, --CO--OC.sub.1-12 alkyl or --COOH; where R.sub.3 is hydrogen or C.sub.1-4 alkyl; R.sub.7 is hydrogen, C.sub.1-12 alkyl, C.sub.5-6 cycloalkyl, phenyl, phenyl-C.sub.1-4 alkyl or C.sub.1-12 alkylphenyl and R.sub.8 is C.sub.1-12 alkyl or hydrogen,each R.sub.1, independently, is --CH.sub.3 or --CH.sub.2 (C.sub.1-4 alkyl) or both groups R.sub.1 form a group --(CH.sub.2).sub.5 --; andeach R.sub.2, independently, is --CH.sub.3 or --CH.sub.2 (C.sub.1-4 alkyl) or both groups R.sub.2 form a group --(CH.sub.2).sub.5 --.A is --O-- or --N(C.sub.1-4 alkyl)-- or --NH--R.sub.9 is hydrogen or methyl, andR.sub.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: January 6, 1998
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Lajos Avar, Gilbert Ligner
  • Patent number: 5700893
    Abstract: A water-soluble cationic copolymer comprising a reaction product of N-vinylamide having the general formula: ##STR1## and a cationic quaternary amine having the formula: ##STR2## wherein Y is C(.dbd.O)O(CH.sub.2).sub.n N.sup..sym. R.sup.4 R.sup.5 R.sup.6 X.sup..crclbar., or ##STR3## X.sup..crclbar.,n is 1 to 5; R.sup.1, R.sup.2, R.sup.3 are independently H or C.sub.1 to C.sub.3 alkyl, R.sup.4, R.sup.5, and R.sup.6 are independently C.sub.1 to C.sub.3 alkyl, X is a halide, hydroxyl or alkylsulfate anion.The copolymers of this invention are useful as flocculating agents, and are particularly useful as drainage/retention aids in pulp and papermaking operations.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: December 23, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Lawrence Lu Kuo, Roger Yiming Leung, Kenneth Samuel Williams
  • Patent number: 5693732
    Abstract: A paper coating formulation and a process for making a paper coating formulation having an improved strength and blister resistance including an aqueous medium having dispersed therein a functionally effective amount of a finely divided mineral filler and a latex binder containing copolymerized acid functional and amine functional monomers in each polymer molecule.
    Type: Grant
    Filed: January 8, 1996
    Date of Patent: December 2, 1997
    Assignee: GenCorp. Inc.
    Inventors: Satish C. Sharma, Charles M. Kausch, Ronald D. Mohan, Raymond J. Weinert
  • Patent number: 5681912
    Abstract: A water-soluble cationic copolymer having the general formula: ##STR1## wherein Z represents --C(.dbd.O)O(CH.sub.2).sub.n N.sup..sym. R.sup.4 R.sup.5 R.sup.6 X.sup..crclbar., --C(.dbd.O)NH(CH.sub.2).sub.n N.sup..sym. R.sup.4 R.sup.5 R.sup.6 X.sup..crclbar., ##STR2## or residual groups of --CH.sub.2 N.sup..sym. (R.sup.4 R.sup.5)CH.sub.2 CH.dbd.CH.sub.2 X.sup..crclbar. or mixtures thereof, and n is 1 to 5; R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of H or C.sub.1 to C.sub.3 alkyl; R.sup.4, R.sup.5 and R.sup.6 are independently C.sub.1 to C.sub.3 alkyl; and X is a halide, hydroxyl or alkylsulfate anion; and wherein x, y, and q represent molar percents of monomeric units in the copolymer such that q is 1 to 99 mol %, and the molar ratio of x to y is from 0 to 10.The copolymers of this invention are useful as flocculating agents and as drainage/retention aids in pulp and papermaking operations.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: October 28, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Lawrence Lu Kuo, Roger Yiming Leung, Kenneth Samuel Williams
  • Patent number: 5670550
    Abstract: Anion exchange resins including at least two positively charged sites and a ell-defined spacing between the positive sites are provided together with a process of removing anions or anionic metal complexes from aqueous solutions by use of such resins. The resins can be substituted poly(vinylpyridine) and substituted polystyrene.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 23, 1997
    Assignee: The Regents of the University of California Office of Technology Transfer
    Inventors: Gordon D. Jarvinen, S. Fredric Marsh, Richard A. Bartsch
  • Patent number: 5658981
    Abstract: A thermoreversible thickener comprising a water-soluble copolymer containing as constituent monomer at least 50% by weight of a vinyl carboxylic ester of a cylic amine or a non-cyclic amine with at least 5 carbons with an alkylene oxide added thereto. The thickener, with a transition temperature which can be easily controlled according to the purpose of application such as coating, rolling oil, adhesives or inks, has a characteristic such that heating the aqueous solution thereof up to a temperature above the transition temperature causes rapid thickening of the solution.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 19, 1997
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventor: Tatsuya Ohsumi
  • Patent number: 5652327
    Abstract: A polymer containing triazine rings that has a molecular weight of 5,000-1,000,000 and that comprises a recurring unit represented by the general formula (I): ##STR1## wherein X.sup.1 and X.sup.2 are each independently S, NR.sup.1 (R is a hydrogen atom, an alkyl group or an aryl group) or O; Y may be an alkylene group, a divalent substituted or unsubstituted aromatic ring group that do not contain chromophore moieties or a group in which said aromatic ring groups are bonded or condensed together; Z is either a spacer group comprising a group represented by --G--(CH.sub.2).sub.n -- (n is an integer of 1-10) or a direct bond (G is S, NR.sup.4 or O, and R.sup.4 is a hydrogen atom, an alkyl group or an aryl group); and A is an organic chromophore moiety in which an electron donative group and an electron attractive group are conjugated via a .pi.-electron system. The polymer is lightproof, forms a thin film of high quality and has a high glass transition point.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: July 29, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wen-Bing Kang, Tsunetoshi Sugiyama, Shizuo Ogura, Yusuke Takano
  • Patent number: 5641846
    Abstract: Side-group polymers whose permanently shape-anisotropic side groups carry lateral substituents are particularly suitable, owing to their excellent properties, for optical components which can be employed, in particular, in optical data storage and transfer.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: June 24, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Bieringer, Uwe Gessner, Dietrich Haarer, Joachim Rubner, Roland Wuttke, Uwe Claussen, Ralf Ruhmann, Horst Berneth, Sergei Kostromin, Ralf Neigl