Oxygen Atom Is Part Of A Carboxylic Acid Ester Group Patents (Class 525/302)
  • Patent number: 6316548
    Abstract: A (meth)acrylic premix comprising a (meth)acrylic resin composition (A) containing a (meth)acrylic monomer (a) and a (meth)acrylic polymer (b), an inorganic filler (B), and a curing agent (C), wherein, the component (a) is a (meth)acrylate having a bicyclo ring, fluorine atom, cyclic ether, cyclohexane ring or tricyclo ring, and the component (C) is a radical polymerization initiator having a 10 hours half-life temperature of 75° C. or more; an acrylic SMC or BMC comprising this (meth)acrylic premix and a thickening agent; and a method for producing (meth)acrylic artificial marble, wherein this (meth)acrylic SMC or BMC is cured with being pressurized and heated at a temperature in the range from 105 to 150° C., are provided. These are useful for producing (meth)acrylic artificial marble having various excellent physical properties such as appearance, dimension stability, hot water resistance, weatherability.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: November 13, 2001
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Seiya Koyanagi, Katsumi Yonekura, Shinji Saiki, Kentaro Hayashi, Yuichiro Kishimoto
  • Patent number: 6239226
    Abstract: A block copolymer obtainable by reacting A) monomers selected from the group consisting of styrene, &agr;-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate and maleic anhydride to form blocks A having a glass transition temperature Tg of more than 0° C. and B) monomers selected from the group consisting of n-butyl acrylate, methyl acrylate and 2-ethylhexyl acrylate to form blocks B having a glass transition temperature Tg of less than 0° C. at from 100 to 160° C. in the presence of free-radical initiators and N-oxyl radicals.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: May 29, 2001
    Assignee: BASF Aktiengesellshcaft
    Inventors: Michael Fischer, Jürgen Koch
  • Patent number: 6239228
    Abstract: A graft copolymer pressure sensitive adhesive is provided comprised of a backbone polymer having a polymeric moiety grafted thereto. The copolymer comprises at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol, optionally at least one B monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20° C., and a macromeric graft moiety D containing repeat hydrophilic units.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Adhesives Research, Inc.
    Inventors: Michael J. Zajaczkowski, Barbara A. Stutzman
  • Patent number: 6187862
    Abstract: A thermoplastic molding composition comprising a grafted rubber and a copolymeric matrix is disclosed. The composition is characterized in that its grafted rubber includes a substrate, a first grafted phase and a subsequent grafted phase which are sequentially grafted to said substrate. The substrate which contains a crosslinked elastomer is grafted with a first grafted phase and with a subsequent grafted phase, both phases containing copolymers of at least one vinylaromatic monomer and at least one member selected from the group consisting of (meth)acrylonitrile and alkyl (meth)acrylate. The relative ratios of the monomers making up the copolymerized phases differ one from the other. The grafted rubber is present in particulate form having a weight average particle size of about 0.1 to 1.0 microns. The composition features improved impact strength and reduced opacity.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: February 13, 2001
    Assignee: Bayer Corporation
    Inventors: Moh Ching Oliver Chang, Richard M. Auclair, Robert A. Sanocki
  • Patent number: 6174649
    Abstract: Cinnamate-containing photopolymers for use in liquid crystal display are provided. The photopolymers can be homopolymers or copolymers, and have improved thermostability and photoelectric characteristics. The photopolymers contain a substituted benzene ring and have a weight average molecular weight of from about 1000 to about 100,000. Methods for forming LCD cells using the cinnamate-containing homopolymers and copolymers are also provided.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: January 16, 2001
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jae Geun Park, Do Yun Kim, Hwan Jae Choi, Joo Young Kim
  • Patent number: 6172015
    Abstract: Polar monomer-containing copolymers derived from at least one &agr;, &bgr; unsaturated carbonyl compound, such as alkyl acrylates and one or more olefins, such olefins including ethylene and C3-C20 &agr;-olefins such as propylene and 1-butene, which copolymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: January 9, 2001
    Assignee: Exxon Chemical Patents, Inc
    Inventors: Jacob Emert, Albert Rossi, David E. Gindelberger, Jon E. Stanat, James P. Stokes, Jaimes Sher
  • Patent number: 6172164
    Abstract: The present invention relates to graft polyols employing a t-amyl peroxy compound as free radical initiator. The novel graft polyols are made by polymerizing at least one monomer in a polyol composition in the presence of a free radical initiator and preferably a chain transfer agent. The resulting graft polyols are in turn useful in reactions with polyisocyanates to make polyurethane products.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: January 9, 2001
    Assignee: BASF Corporation
    Inventors: John E. Davis, Duane A. Heyman, Joseph R. Gregoria
  • Patent number: 6166146
    Abstract: A curable resin composition comprising (1) a polymerizable vinyl monomer, (2) a polymerization initiator, (3) an aromatic amine and/or a pyridine derivative, (4) a .beta.-diketone chelate and/or a .beta.-keto-ester, and (5) a phosphate.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: December 26, 2000
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Suto, Koichi Taguchi
  • Patent number: 6160048
    Abstract: There is provided a modified ethylene resin produced by subjecting (a) an ethylene resin to modification with (b) an .alpha.,.beta.-unsaturated carboxylic ester having a hydrocarbon-terminated polyalkylene oxide chain, and with (c) an aromatic vinyl compound and/or (d) an ester of an .alpha.,.beta.-unsaturated carboxylic acid with an aliphatic alcohol.There is also provided an ethylene resin composition comprising: (A) 80 to 99.9% by weight of a modified ethylene resin produced by subjecting (a) an ethylene resin to modification at least with (b) an .alpha.,.beta.-unsaturated carboxylic ester having a polyalkylene oxide chain; and (B) 20 to 0.1% by weight of a surfactant.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: December 12, 2000
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tadashi Uyeda, Keiko Matsuhisa, Kenjiro Takayanagi, Mitsutoshi Aritomi
  • Patent number: 6140425
    Abstract: A graft copolymer containing anhydride groups is made by (1) making a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto polymerized monomers selected from the group consisting of (a) at least one acrylic acid substituted with a 1-3 C alkyl group and (b) a mixture of at least one of these substituted acrylic acids and a vinyl compound capable of copolymerizing therewith, wherein the total amount of polymerized monomers is about 20 parts to about 240 parts per hundred parts of the propylene polymer material and the amount of the substituted acrylic acid is 60 mole % or more of the polymerized monomers, and (2) heating the graft copolymer to a temperature of about 170.degree. C. to about 300.degree. C. to dehydrate the acid groups in the graft copolymer to form anhydride groups.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 31, 2000
    Assignee: Montell North America Inc.
    Inventors: Anthony J. DeNicola, Jr., Abuzar Syed
  • Patent number: 6107410
    Abstract: The invention provides a cinnamic acid derivative having a novel spacer introduced into cinnamic acid which is photodimerizable, a cinnamic acid-polysaccharide derivative photocurable with high sensitivity and efficiency obtainable by introducing the above cinnamic acid derivative into a host polysaccharide such as a glycosaminoglycan, and a photocrosslinked cinnamic acid-polysaccharide derivative obtainable by exposing the same cinnamic acid-polysaccharide derivative to ultraviolet light irradiation.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: August 22, 2000
    Assignee: Seikagaku Corporation
    Inventors: Michinori Waki, Kenji Miyamoto, Yoshihiro Motani
  • Patent number: 6100324
    Abstract: Disclosed are ionomers comprising functionalized polyolefins having fluoroalkyl sulfonate pendant groups and ionically conductive compositions formed therefrom by the addition of solvents.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 8, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Susan Kuharcik Choi, Christopher Marc Doyle, Mark Gerrit Roelofs, Lin Wang, Zhen-Yu Yang
  • Patent number: 6080820
    Abstract: High-surface-area polyolefins grafted with certain fluoroalkylvinylether sulfonate or carboxylate monomers, and their method of preparation, are disclosed. Such materials are usefuli as catalysts and as membranes in electrochemical cells.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Edward G. Howard, Jr.
  • Patent number: 6066603
    Abstract: Polar monomer-containing copolymers derived from at least one .alpha., .beta. unsaturated carbonyl compound, such as alkyl acrylates and one or more olefins, such olefins including ethylene and C.sub.3 -C.sub.20 .alpha.-olefins such as propylene and 1-butene, which copolymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: May 23, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Albert Rossi, David E. Gindelberger, Jon E. Stanat, James P. Stokes, Jaimes Sher
  • Patent number: 6066693
    Abstract: Graft copolymers (P1) having an average particle size of from 40 to 2000 nm contain at least (P1.1) a soft segment having a glass transition temperature of not more than 10.degree. C. as a grafting base, which segment contains at least one acrylate as the monomer or as one of two or more monomers copolymerizable with one another, and at least one crosslinking agent, and (P1.2) a hard segment having a glass transition temperature of at least 11.degree. C. as a graft layer, which segment contains at least one vinylaromatic monomer as one of two or more monomers copolymerizable with one another, that region of the subsequent graft layer which is adjacent to the grafting base P1.1 comprising at least one vinylaromatic monomer and the region facing away from the grafting base comprising at least one vinylaromatic monomer with at least one monomer copolymerizable therewith, and blends and thermoplastic materials contain these graft copolymers.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: May 23, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Fischer, Bernhard Rosenau, Wolfgang Fischer
  • Patent number: 6048611
    Abstract: The present invention relates to a water-based high-solids moisture-resistant latex pressure sensitive adhesive which has a low coating viscosity and which has high shear, high compliance, and controlled adhesion buildup.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: April 11, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Ying-Yuh Lu, Michael D. Crandall, Robert D. Koppes
  • Patent number: 6025444
    Abstract: The invention provides a cinnamic acid derivative having a novel spacer introduced into cinnamic acid which is photodimerizable, a cinnamic acid-polysaccharide derivative photocurable with high sensitivity and efficiency obtainable by introducing the above cinnamic acid derivative into a host polysaccharide such as a glycosaminoglycan, and a photocrosslinked cinnamic acid-polysaccharide derivative obtainable by exposing the same cinnamic acid-polysaccharide derivative to ultraviolet light irradiation.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: February 15, 2000
    Assignees: Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation), Fuji Photo Film Co., Ltd.
    Inventors: Michinori Waki, Kenji Miyamoto, Yoshihiro Motani
  • Patent number: 6020436
    Abstract: A universal method to make photosensitive polymers from poly(vinyl alcohol) and poly(vinyl pyridine) is disclosed which generally does not require final purification. These polymers comprise a heterocyclic, light-sensitive pendant group including a moiety having the formula: ##STR1## wherein Z.sup.1 denotes the atoms necessary to form a substituted or unsubstituted aromatic heterocyclic ring; Z.sup.2 denotes the atoms necessary to form a substituted or unsubstituted aromatic or aromatic heterocyclic ring; R is hydrogen or a substituted or unsubstituted alkyl group; M is a divalent organic moiety; Y is a residue from a grafting group that is capable of grafting the pendant group onto a polymeric backbone.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: February 1, 2000
    Assignee: The Chromaline Corporation
    Inventors: Alexander S. Gybin, Lawrence C. Van Iseghem
  • Patent number: 5994471
    Abstract: Partially crosslinked plastic compositions with a melt flow index at 230.degree. C. and under a load of 2.16 kg, of from 0.1 to 100 g/10 min, and a gel content of less than 12% by weight, is prepared froma) a polymer comprisinga.sub.1) from 60 to 92% by weight of a propylene homopolymer anda.sub.2) from 8 to 40% by weight of a propylene copolymer having C.sub.2 -C.sub.10 -alk-1-enes incorporated into its polymer chain and with a comonomer content, based on a.sub.2) of from 15 to 70% by weight, andb) a compound of the formula (I) ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl,X is substituted or unsubstituted C.sub.1 -C.sub.30 -alkyl or substituted or unsubstituted C.sub.7 -C.sub.30 -arylalkyl, where each of the alkyl groups may be interrupted byone or more oxygen atoms in ether moieties (--O--) or oxycarbonyl moieties (--O--CO--) and/or bynitrogen groups of the formula NR.sup.2, where R.sup.2 is hydrogen, C.sub. -C.sub.6 -alkyl or C.sub.1 -C.sub.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: November 30, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Seelert, Joachim Rosch, Klaus-Dieter Rumpler, Meinolf Kersting, Karl Huber
  • Patent number: 5981666
    Abstract: A novel high performance pressure sensitive adhesive composition is provided comprised of a phase separated graft copolymer comprised of a polymerized acrylic or methacrylic acid ester backbone having grafted thereon pendant polymeric moieties such as polystyrene or poly-alpha-methylstyrene in an amount of from 1.5 to 2.5 grafts per polymer chain on average.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 9, 1999
    Assignee: Adhesives Research, Inc.
    Inventors: Michael J. Zajaczkowski, Bernard Gordon, III
  • Patent number: 5981665
    Abstract: A thermoplastic elastomer is achieved by absorbing an acrylate monomer, an initiator and eventually a diacrylate into polyolefin particles, after which the temperature is raised and the acrylate polymerises into the polyolefin and forms a dispersed phase, which has been functionalized by copolymerising a functional monomer together with the acrylate. As a compatibiliser a grafter polyolefin is used, which is melt-blended after the polymerisation into the thermoplastic elastomer or before the polymerisation into the polyolefin.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: November 9, 1999
    Assignee: Optatech Corporation
    Inventors: Torvald Vestberg, Viveca Lonnberg, Tommi Vainio, Kalle Hanhi, Harri Jukarainen
  • Patent number: 5981675
    Abstract: Low water siloxane macromonomer are disclosed. This macromonomer can be copolymerized with unsaturated silicone containing monomers to prepare polymeric materials useful as biomedical devices. These macromonomers are particularly suited for soft contact lens applications.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: November 9, 1999
    Assignee: Bausch & Lomb Incorporated
    Inventors: Paul L. Valint, Jr., Joseph A. McGee, Richard M. Ozark
  • Patent number: 5962593
    Abstract: A graft copolymer rubber comprising an unsaturated hydrocarbon rubber backbone having pendently grafted thereto a polymerized metal salt of an unsaturated carboxylic acid is provided. The graft copolymer rubber is prepared by a method which involves dissolving an unsaturated hydrocarbon rubber in a solvent to form a rubber solution, adding a metal salt of an unsaturated carboxylic acid to the solution, adding a free radical initiator to the solution and then heating the resultant reaction mixture at a temperature of from about 40 to about 150.degree. C. for a time period of from about 0.1 to about 100 hours.The resultant graft copolymer rubber is sulfur curable and when compounded with conventional rubber additives and cured forms rubber compounds having high modulus. The graft copolymer rubbers of the invention can be used in various end use applications where high strength properties are important such as tires, industrial rubber goods and the like.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: October 5, 1999
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Frederick J. Ravagnani, John M. Doshak
  • Patent number: 5942580
    Abstract: An acrylic rubber composition comprising a halogen-containing acrylic rubber, a vulcanizing agent and at least one unsaturated compound selected from the group consisting of (1) .alpha.-olefins having at least 4 carbon atoms, (2) carboxylic acid vinyl esters, (3) alkyl vinyl ethers, (4) lower alkyl cyclohexenes or cyclohexenecarboxylic acid caprolactone esters and (5) unsaturated dicarboxylic acid diesters can give vulcanization products having an improved compression set without any substantial deterioration of normal state physical properties and resistance to heat ageing of the vulcanization products, where the unsaturated compound gives off no unpleaseant odor without any skin irritation when vulcanized and without lowering the mold releasability.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: August 24, 1999
    Assignee: Nippon Mektron, Limited
    Inventors: Tamotsu Yoshida, Jun Okabe
  • Patent number: 5908899
    Abstract: A resin composition for sealing liquid crystal cells which contains as essential components a rubber-modified unsaturated compound obtained by grafting a monomer having at least one polymerizable ethylenically unsaturated bond in a molecule with at least one rubber selected from acrylic rubber, silicone rubber, urethane rubber and conjugated diene rubber, and a coupling agent, a filler and a photopolymerization initiator. The rubber contained in the rubber modified unsaturated compound has a particle diameter of 0.2-5 .mu.m and a number average molecular weight of 1000-100,000, and the rubber content in the compound is 0.5-45% by weight based on the rubber modified unsaturated compound.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: June 1, 1999
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shuji Tahara, Shigeo Makino, Kenji Ito, Seiji Itami, Hiromi Shitakoji
  • Patent number: 5898042
    Abstract: An aqueous fluororesin coating composition and a process for producing the same, the coating composition comprising a core/shell fluorine-containing copolymer dispersed in an aqueous medium, the core/shell fluorine-containing copolymer comprising a core comprising a fluorine-containing copolymer comprising a repeating unit derived from a fluoroolefin monomer and a repeating unit derived from a vinyl carboxylate monomer and having a glass transition point Tg of 40.degree. C. or more, and a shell comprising a fluorine-containing copolymer comprising a repeating unit derived from a fluoroolefin monomer and a repeating unit derived from a vinyl carboxylate monomer and having a glass transition point Tg of from -10 to 30.degree. C., the weight ratio of the core to the shell being from 20/1 to 1/2.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 27, 1999
    Assignee: Toagosei Co., Ltd.
    Inventors: Hiroyuki Sawada, Etsuzo Marumoto, Akihito Iida, Tatsuo Nishio, Hiroshi Inukai
  • Patent number: 5891965
    Abstract: The present invention provides a process of curing a fluorocarbon elastomeric composition comprising: providing a mixture of a saturated elastomeric gum comprising repeating interpolymerized units derived from vinylidene fluoride and a perfluorinated ether of the formula CF.sub.2 .dbd.CF(CF.sub.2).sub.m --O--R.sub..function. wherein m =1-4, R.sub..function. is a perfluorinated aliphatic group optionally containing O atoms, at least one crosslinking agent, and an acid acceptor; shaping the mixture; and curing the resulting shaped article.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: April 6, 1999
    Assignee: Dyneon LLC
    Inventors: Allan T. Worm, Miguel A. Guerra
  • Patent number: 5859144
    Abstract: A rubber compound comprising a fluorine rubber component and an acrylic rubber component is produced by adding an acrylic monomer to an aqueous emulsion of fluorine-containing elastomer obtained by emulsion polymerization, using a fluorine-containing surfactant, followed by radical polymerization reaction. The obtained rubber compound can satify both of vulcanization moldability and heat aging resistance, and is at a lower cost than the expensive fluorine rubber.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: January 12, 1999
    Assignee: Nippon Mektron, Limited
    Inventors: Kuniyoshi Saito, Iwao Moriyama, Jun Okabe
  • Patent number: 5859140
    Abstract: A method for producing branched polymerizates by radical polymerization of monomers in two stages comprisingin a first stage, adding 10 to 500 parts by weight of at least one monomer M.sub.1 and 0.1 to 20 parts by weight of a mercaptan with an olefinic, radically polymerizable double bond RM as a molecular weight regulator, and polymerizing said at least one monomer M.sub.1 and mercaptan RM to form a copolymer MM.sub.1 in the presence of at least one polymerization initiator and 0 to 100 parts by weight of an inert, non-aqueous solvent, which completely dissolves the monomer M.sub.1, the mercaptan RM and the copolymer MM.sub.1, where the polymerizable double bonds and M.sub.1 and RM have a reactivity, expressed by a copolymerization parameter r, between 0.1 and 10, andin a second stage, adding 10 to 2000 parts by weight of a monomer M.sub.2 and 0.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: January 12, 1999
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Martina Pfirmann, Werner Siol, Klaus Koralewski, Michael Wicker
  • Patent number: 5856022
    Abstract: A composition of matter includes a polymerizable mixture comprising 1 to 99 weight percent of a first monomer and an initiator therefor, the first monomer being one of 1) at least one free-radically polymerizable monomer or 2) at least one cyanate ester monomer, and 99 to 1 weight percent of a second monomer and an initiator therefor, the second monomer being the member of 1) or 2) that is not selected as the first monomer, wherein the curative for the cyanate ester is a transition metal-containing organometallic compound curing agent and the curative for the free-radically polymerizable monomer is a free-radical generating curing agent or a transition metal-containing organometallic compound.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: January 5, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Fred B. McCormick, David J. Drath, Ilya Gorodisher, Michael A. Kropp, Michael C. Palazzotto, Melville R. V. Sahyun
  • Patent number: 5840803
    Abstract: A thermoplastic molding composition which contains (i) a grafted copolymer rubber having a grafted phase of styrene-acrylonitrile phase and a crosslinked (meth)acrylate-acrylonitrile substrate, and (ii) an ungrafted, uncrosslinked SAN having a number average molecular weight of about 20,000 to 100,000 is disclosed. The composition which is further characterized in that it contains no additional grafted copolymer rubber based on crosslinked (meth)acrylate-acrylonitrile substrate and in that the grafted copolymer rubber is present in particulate form where the particles have a monomodal size distribution and a weight average particle size of 0.05 to 0.5 microns exhibits improved mechanical properties.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: November 24, 1998
    Assignee: Bayer Corporation
    Inventors: Moh Ching Oliver Chang, Richard M. Auclair
  • Patent number: 5798417
    Abstract: High-surface-area polyolefins grafted with certain fluoroalkylvinylether sulfonate or carboxylate monomers, and their method of preparation, are disclosed. Such materials are useful as catalysts and as membranes in electrochemical cells.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: August 25, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Edward G. Howard, Jr.
  • Patent number: 5773505
    Abstract: The invention relates to polymer emulsions of poly(meth)acrylic acid esters and olefin copolymers suitable for improvement of the viscosity index, for use as oil additives.The polymer emulsion is formed of a continuous phase of poly(meth)acrylic acid esters and d-oligomers where the esters and oligomers have a bimodal molecular-weight distribution, a stabilizing agent (a graft or block polymerizate of an olefin copolymerizate and methacrylic acid esters), and a disperse phase of olefin copolymerizates distributed in the continuous phase.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 30, 1998
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Horst Pennewiss, Claudia Beyer, Ruediger Jelitte, Bernhard Will, Clemens Auschra, Juergen Omeis
  • Patent number: 5770631
    Abstract: A process is disclosed for the production of connected microgel particles. According to the process, starting microgel particles having particle sizes of 100-0.01 .mu.m and a particle size distribution whose standard deviation is not greater than 100% of a mean particle size of the starting microgel particles are dispersed in a matrix component. The starting microgel particles are soaked with a monomer. The monomer is then polymerized, whereby the starting microgels are connected together. Also disclosed is an article comprising a base material and a layer of such connected microgel particles formed on a surface of the base material.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: June 23, 1998
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Takashi Fukutomi, Yoshifumi Sugito, Minoru Takizawa, Satoshi Mizoguchi, Michiei Nakamura, Hitoshi Takeuchi, Naomi Oguma, Motohisa Maruyama, Shojiro Horiguchi
  • Patent number: 5756585
    Abstract: A process for manufacturing a star shaped block polymer of formula (PA--PB--PC).sub.n --N--(PD--PE).sub.m wherein PA, PB and PC are respectively vinylaromatic/methacrylic blocks, acrylic blocks and methacrylic blocks. PD is a polymer block selected from vinylaromatic and/or methacrylic monomer units, PE is an acrylic polymer block, n is 2 to 20 and m is 0 to 18 with the proviso that m+n is .ltoreq.20. The process proceeds by anionic polymerization in the presence of a monofunctional initiator of formula (II),(R).sub.p --Mwherein M is an alkali or alkaline earth metal, p is 1 or 2 and R is a straight or branched alkyl radical having 2 to 6 carbon atoms or a C.sub.1 to C.sub.6 substituted alkyl radical.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: May 26, 1998
    Assignee: Atochem
    Inventors: Philippe Teyssie, Roger Fayt, Sunil K. Varshney, Christian Jacobs
  • Patent number: 5747597
    Abstract: The present invention provides a curable resin composition comprising: a polymer (A) containing a polymerizable unsaturated bonding group; and a polymerizable unsaturated monomer (B). Polymerizable unsaturated monomer (B) comprises as an essential component an oligoalkyl(C.sub.2 -C.sub.4)ether(n=2-15)-monoalkoxy(C.sub.1 -C.sub.18)-(meth)acrylate. This curable resin composition according to the present invention displays superior adherence, air-drying, water resistance, and storage stability properties in addition to a reduced odor.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: May 5, 1998
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yukiko Fujita, Shinya Ueno, Yoko Kawasaki, Kumiko Fukakusa, Hidefumi Matsuya, Tomomasa Mitani, Akira Komori, Mika Matsumura
  • Patent number: 5747154
    Abstract: Ranges of chain-transfer agents, thixotropic agents, and alumina trihydrate content are balanced to minimize migration or maldistribution of coloring matter and alumina trihydrate during curing of methyl methacrylate in a syrup including polymethylmethacrylate and also during subsequent heating and deformation in thermoforming, to achieve constancy of impact resistance and improve stability of patterns even in deformed portions of formed sheets.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: May 5, 1998
    Assignee: Aristech Chemical Corporation
    Inventors: Ettore Minghetti, John E. Eitel, Carol A. Wetter
  • Patent number: 5717034
    Abstract: In accordance with the present invention, it has been discovered that perfluorinated hydrocarbon polymers can be used as fillers for the preparation of adhesive formulations having excellent dielectric properties, i.e., very low conductivities. Invention compositions display excellent rheological properties, in addition to low dielectric constants. Invention formulations can be used for a variety of purposes, such as, for example, for the preparation of filled adhesive formulations with a reduced propensity to settle out, excellent dispensing characteristics due to the thixotropic nature thereof, and the like.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: February 10, 1998
    Assignee: Quantum Materials, Inc.
    Inventors: Stephen M. Dershem, Deborah D. Forray
  • Patent number: 5714261
    Abstract: The invention concerns crosslinked plastic particles based on polymethyl (meth)acrylate PP with a particle diameter of 1-15 .mu.m, synthesized from the monomers:A) methyl methacrylate in fractions of 20 to 99.9 wt %;B) methacrylic acid ester of formula I: ##STR1## wherein R.sub.1 stands for a C.sub.2-8 alkyl radical, a C.sub.5-6 cycloalkyl radical, a C.sub.5-6 cycloalkyl radical substituted with C.sub.1 -C.sub.4 alkyl, a C.sub.6-14 aryl radical, a substituted C.sub.6-14 aryl radical or an aralkyl radical, in fractions of 0 to 79 wt %;C) acrylic acid ester of formula II:CH.sub.2 =CH--COOR.sub.2 (II)wherein R.sub.2 stands for a C.sub.1-8 alkyl radical, a C.sub.5-6 cycloalkyl radical which can be substituted with C.sub.1 -C.sub.4 alkyl, or a perhaps substituted C.sub.6-14 aryl radical or an aralkyl radical, in fractions of 0 to 50;D) at least one crosslinking monomer CM, which is, in fact, known, containing at least two radically polymerizable groups in the molecule in fractions of 0.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: February 3, 1998
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Werner Siol, Markus Parusel
  • Patent number: 5711940
    Abstract: The invention relates to a process for the preparation of a stable microdispersion of particles comprised of acrylic polymers in an organic solvent used as reaction medium in the presence of a stabilizing agent comprised of a block copolymer, characterized in that said acrylic polymer is obtained by radical polymerization of at least one acrylic monomer in the presence of a block copolymer based on polymethyl methacrylate (PMMA) and polytert-butyl acrylate (PtBuA). It also relates to microdispersions which may be obtained by said process as well as to microgels produced from said microdispersions and compositions, particularly cosmetic compositions such as nail varnish.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: January 27, 1998
    Assignee: LVMH Recherche
    Inventors: Annie Kuentz, Henri-Gerard Riess, Alain Meybeck, Jean-Fran.cedilla.ois Tranchant
  • Patent number: 5708094
    Abstract: Contact lenses are made from the polymerization product of a monomer mixture comprising a polybutadiene-based compound as represented by formula (I)E--B(AB).sub.a --E (I)wherein:A is selected from the group consisting of a chemical bond, --OCO--, --COO--, --CONH--, --NHCO--, --OCOO--, --NHCOO-- and --OCONH--,a is zero or an integer of at least 1;each B is independently represented by the formula (II) ##STR1## where each of m, n, and p is independently 0 or greater, provided that m+n+p is at least 10;R is hydrogen or C.sub.1 -C.sub.4 alkyl;each E is independently a polymerizable terminal ethylenically unsaturated organic group.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: January 13, 1998
    Assignee: Bausch & Lomb Incorporated
    Inventors: Yu-Chin Lai, Ronald E. Bambury
  • Patent number: 5705552
    Abstract: A composition suitable for making thermoformable sheets and the like. The composition comprises a crosslinked poly (methyl methacrylate) typically having uncrosslinked poly (methyl methacrylate) dispersed therein. The composition a comprises 0.5 to about 1.0 pph of at least one crosslinking agent x, and up to about 0.58x-0.28 pph of a at least one chain terminator. The composition also comprises about 0.1 to 8 pph poly (methyl methacrylate) compatible plasticizer, and has about 20 to 60 wt % solid particle dispersed therein.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: January 6, 1998
    Assignee: Aristech Chemical Corporation
    Inventors: Ettore Minghetti, John E. Eitel, Carol A. Wetter
  • Patent number: 5698637
    Abstract: A method for modifying polyolefins by grafting with a carboxylic acid, carboxylic acid anhydride or other functionalized monomer in the presence of two additional comonomers, one being an aliphatic diolefin and the other an aromatic vinyl or (meth)acrylate monomer.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: December 16, 1997
    Assignee: Borealis Holding A/S
    Inventor: Jari Aarila
  • Patent number: 5695838
    Abstract: Disclosed are (1) an adhesive polypropylene resin composition comprising (a) 50 to 90 parts by weight of a modified polypropylene or a composition containing said modified polypropylene, said modified polypropylene being graft-modified with at least one monomer selected from the group consisting of an unsaturated carboxylic acid from the group consisting of an unsaturated carboxylic acid and a derivative thereof and (b) 10 to 50 parts by weight of a modified polyolefin other than the modified polypropylene or the composition (a), said modified polyolefin being grafted with at least one monomer selected from the group consisting of an unsaturated carboxylic acid and a derivative thereof, and (2) a multi layer laminate body comprising (i) a layer of a polyolefin (ii) a layer of the above-said adhesive polypropylene resin composition and (iii) a layer of a polyamide resin and/or an ethylene/vinyl alcohol copolymer, said layers being laminated in the order of (i), (ii) and (iii).
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: December 9, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Haruhiko Tanaka, Hideshi Kawachi
  • Patent number: 5693717
    Abstract: A method for producing branched polymerizates by radical polymerization of monomers in two stages comprisingin a first stage, adding 10 to 500 parts by weight of at least one monomer M.sub.1 and 0.1 to 20 parts by weight of a mercaptan with an olefinic, radically polymerizable double bond RM as a molecular weight regulator, and polymerizing said at least one monomer M.sub.1 mercaptan RM to form a copolymer MM.sub.1 in the presence of at least one polymerization initiator and 0 to 100 parts by weight of an inert, non-aqueous solvent, which completely dissolves the monomer M.sub.1, the mercaptan RM and the copolymer MM.sub.1, where the polymerizable double bonds of M.sub.1 and RM have a reactivity, expressed by a copolymerization parameter r, between 0.1 and 10, andin a second stage, adding 10 to 2000 parts by weight of a monomer M.sub.2 and 0.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: December 2, 1997
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Martina Pfirmann, Werner Siol, Klaus Koralewski, Michael Wicker
  • Patent number: 5663260
    Abstract: A process for preparing hyperbranched polymers from AB monomers and C monomers Using a self-constructing approach is disclosed along with the hyperbranched polymers of a living-like character produced by such process.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: September 2, 1997
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Jean M.J. Frechet, Sadahito Aoshima
  • Patent number: 5643977
    Abstract: A water-based coating composition which cures through a Michael reaction at room temperature is provided. The composition comprises (a) an aqueous emulsion of an acrylic copolymer having a plurality of activated methylene groups in the molecule, (b) an aqueous dispersion or solution of a compound having a plurality of ethylenic unsaturations in the molecule, and (c) a compound capable of catalyzing the Michael reaction.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: July 1, 1997
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Katsuhiko Sho, Masahiro Nishio, Koichi Saitoh, Kei Aoki, Tohru Yagi
  • Patent number: 5637654
    Abstract: The present invention is directed to a powdered coating composition which includes a carboxyl terminated polyester, epoxy compounds and an onium catalyst which provide coatings with outstanding properties when cured at low temperatures.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: June 10, 1997
    Assignee: McWhorter Technologies
    Inventors: Kamlesh P. Panandiker, Timothy Wiedow
  • Patent number: 5625006
    Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: April 29, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Joseph P. Callahan, Jr., Rudyard M. Enanoza, Mark D. Weigel
  • Patent number: RE36140
    Abstract: A two-part adhesive consisting of a first liquid comprising 100 parts by weight of a polymerizable vinyl monomer and from 0.1 to 20 parts by weight of an organic peroxide and a second liquid comprising 100 parts by weight of a polymerizable vinyl monomer and from 0.05 to 15 parts by weight of a reducing agent, wherein either one or both of the first and second liquids contain from 0.4 to 5% by weight of water, and the content of water is more than 0.2% by weight based on the total amount of the first and second liquids.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: March 9, 1999
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koichi Taguchi, Kinpei Iwata, Hideki Matsudo