Patents Examined by Thomas Hamilton, III
  • Patent number: 5648424
    Abstract: Disclosed is a molded product of a thermoplastic resin composition which comprises:(a) a non-crystalline thermoplastic resin,(b) a crystalline thermoplastic resin and(c) an inorganic filler, if necessary,wherein a portion in which Component (a) takes a structure forming a matrix and a portion in which Component (b) takes a structure forming a matrix coexist.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: July 15, 1997
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Chiyo Miwa, Hironari Sano, Koji Nishida, Yoshihiro Kurasawa
  • Patent number: 5631063
    Abstract: A biaxially oriented film of a polyethylene-2,6-naphthalenedicarboxylate, which (A) has a Young's modulus of at least 800 kg/mm.sup.2 in the longitudinal direction and a Young's modulus of at least 500 kg/mm.sup.2 in the transverse direction, the Young's modulus in the longitudinal direction being greater than the Young's modulus in the transverse direction, (B) satisfies the following relationships between an elongation S.sub.M (%) in the longitudinal direction per a load of 1 kg/mm.sup.2 at 120.degree. C. and the Young's modulus Y.sub.M (kg/mm.sup.2) in the longitudinal direction,-0.001Y.sub.M +0.89<S.sub.M <-0.001Y.sub.M +1.57when Y.sub.M is 1,200 kg/mm.sup.2 or less,and-0.31<S.sub.M <0.37when Y.sub.M is greater than 1,200 kg/mm.sup.2, and (C) has a heat shrinkage percentage of 0.1% or less in the longitudinal direction when the biaxially oriented film has been heat-treated under no load at 70.degree. C. for 1 hour.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: May 20, 1997
    Assignee: Teijin Limited
    Inventors: Takao Chujo, Masanori Nishiyama, Hisashi Hamano
  • Patent number: 5623040
    Abstract: Compounds of formulae I and II ##STR1## wherein R is phenyl and R.sub.1 to R.sub.4 are H or a substituent such as phenylthio, and one of the substituents R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is a group of formula III--X--C(O)--CR.sub.5 .dbd.C(R.sub.6).sub.2 (III)or R is substituted by a group of formula III, wherein X is a linking group or --X--C(O)-- is a direct bond, and R.sub.5 and R.sub.6 are each independently of the other H, halogen, C.sub.1 -C.sub.12 alkyl or C.sub.6 -C.sub.10 aryl, can be polymerised to homopolymers or copolymers. The monomers and polymers are reversible photochromic systems which can be used as colour indicators, as photochemically modifiable colour filters, or for the optical storage of information.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: April 22, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Evelyn Fischer, Walter Fischer
  • Patent number: 5618882
    Abstract: Gel compositions comprising styrene-(ethylene/propylene)styrene (SEPS) block copolymer having Mw of at least 180,000 and polystyrene content of 25-45 weight percent, and at least 300 parts by weight percent, and at least 300 parts by weight of extender liquid per 100 parts by weight of the block copolymer. The extender softens the ethylene/propylene mid-blocks of the copolymer and the resulting gels have unexpectedly higher tack, temperature resistance, and extender-retaining ability than corresponding gels made with styrene(ethylene/butylene)-styrene block copolymers.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 8, 1997
    Assignee: Raychem Limited
    Inventors: Philip J. Hammond, John M. Hudson, Hendrik Graulus
  • Patent number: 5616640
    Abstract: A golf ball employing a cover composition comprising an oxa acid compound having the formula ##STR1## wherein R is an organic moiety selected from the group consisting of alkyl, carbocyclic, and heterocyclic groups. Additionally, the present invention is directed towards a golf ball cover composition comprising a copolymer of at least two comonomers, the first comonomer comprising an oxa acid composition of Formula I, and the second comonomer is selected from the group consisting of polyurethanes, epoxy resins, polyethylenes, polyamides, polyesters, and a monomer having a carboxylic acid moiety or its corresponding ionomer. Golf balls employing the present cover compositions exhibit excellent spin characteristics as well as good shear resistance.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 1, 1997
    Assignees: Acushnet Company, E. I. Du Pont de Nemours & Co.
    Inventor: Kevin M. Harris
  • Patent number: 5616658
    Abstract: A curing agent for a composition useful for the production of matt epoxy resin and hybrid powder coatings, comprising a mixture ofa) salts of phthalic acid, isophthalic acid and terephthalic acid with the following amines ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are identical or different aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radicals having 1-20 carbon atoms and in which one or more CH.sub.2 groups in the carbon chain may be replaced by 0 atoms, by NR.sub.4 groups where R.sub.4 =C.sub.1-6 -alkyl, CH--OH groups, and/or one or more terminal methyl groups may be replaced by dialkyl-substituted amino groups having 1 to 6 carbon atoms, and R.sub.1 and R.sub.2 may form a joint ring in which one CH.sub.2 group may be replaced by an O atom or by an NR.sub.4 group, and R.sub.1 =R.sub.2 =R.sub.3 --CH.sub.2 --CH.sub.2 -- attached via a common nitrogen atom, and n=3-11, and 0.5-2 mol of amine A)-C) per mole of acid, andb) pyromellitic acid and/or trimellitic acid, 0.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: April 1, 1997
    Assignee: Huels Aktiengesellschaft
    Inventors: Rainer Gras, Elmar Wolf
  • Patent number: 5616676
    Abstract: A thermosetting polyurethane-urea elastic yarn having a thermosetting ratio of 45-65%, which is obtained by reacting a polyglycol which has a number average molecular weight of 600-6,000 and which has hydroxy at both terminals, with a molar excess of a diisocyanate compound to give an isocyanate-terminated polymeric intermediate, reacting the isocyanate-terminated polymeric intermediate with a diamine compound to give a segmented polyurethane-urea elastomer, and subjecting the obtained elastomer to a spinning step. The thermosetting polyurethane-urea elastic yarn of the present invention has superior mechanical properties and high thermosetting ratios. When applied to knit fabric, particularly to thin knit fabric for panty hose, superior appearance of the knit fabric can be achieved.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: April 1, 1997
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventor: Kenichi Katsuo
  • Patent number: 5614313
    Abstract: A polymeric film comprising a first layer of polymeric material having on at least one surface thereof a second layer of polymeric material comprising, based upon the weight of the polymer in the second layer, (a) 0.05% to 2.0% by weight of silicone resin particles and/or calcined silicone resin particles having a volume distributed median particle diameter of 1.5 to 12.5 .mu.m, and (b) 0.005% to 1.0% by weight of china clay particles having a volume distributed median particle diameter of 0.1 to 2.0 .mu.m.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: March 25, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventors: Paul D. A. Mills, Junaid A. Siddiqui, Anton R. Olek
  • Patent number: 5614591
    Abstract: Durable press properties are imparted to a fabric by applying to the fabric an aqueous durable press treatment composition comprising a reactive modified ethylene urea resin, such as dimethylol dihydroxy ethylene urea (DMDHEU), a crosslinking acrylic copolymer derived from butyl acrylate and acrylonitrile and having a glass transition temperature (T.sub.g) of -30.degree. C. or lower, and a catalyst. The fabric is dried to a residual moisture content of 10 to 20 percent by weight, is pressed to remove unwanted wrinkles, and is heated at a temperature of 88.degree. to 175.degree. C. for up to fifteen minutes to cure and crosslink the durable press treatment composition and impart durable press properties to the fabric. The process can be applied either to fabrics prior to fabrication into garments, or as a garment durable press process imparting durable press properties to fabricated garments.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: March 25, 1997
    Assignee: The Virkler Company
    Inventors: Brent D. Basinger, R. Keith Zimmerman
  • Patent number: 5614323
    Abstract: Disclosed are thermosetting, powder coating compositions comprised of a blend of semi-crystalline and amorphous polyesters and certain adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate which are readily curable at temperatures and times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters alone and the adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: March 25, 1997
    Assignee: Eastman Chemical Company
    Inventor: Yeong-Ho Chang
  • Patent number: 5612418
    Abstract: Blends of a polyacrylate elastomer with a partially hydrogenated rubber, when peroxide-cured, provide a product which is excellent in resistance to degradation by heat or contact with oil, and which is particularly suitable for making belts, hoses, gaskets and the like for use in automobile engines.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: March 18, 1997
    Assignee: Zeon Chemical Incorporated
    Inventors: Paul E. Manley, Richard J. Flecksteiner, Michael E. Wood
  • Patent number: 5610236
    Abstract: A polymer blend composition comprises a polyketone and PVC provided that the polyketone is not a propylene/CO copolymer having a molecular weight of less than 10,000. The softening point of PVC can be increased by blending with polyketones. Blends of polyketones and unplasticised PVC are particularly preferred.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: March 11, 1997
    Assignee: BP Chemicals Limited
    Inventor: James G. Bonner
  • Patent number: 5610219
    Abstract: A resin compound for molding precision parts containing 20 to 40% by weight of at least one of polyphenylene sulfide and aromatic polyester thermotropic liquid crystalline polymer, 15 to 25% by weight of whisker and 40 to 60% by weight of spherical fine particles, wherein the total content of the whisker and the spherical fine particles is 60 to 80% by weight, and a resin compound for molding precision parts containing 20 to 40% by weight of at least one of polyphenylene sulfide and aromatic polyester thermotropic liquid crystalline polymer, 5 to 25% by weight of whisker, 40 to 75% by weight of spherical fine particles and 0.5 to 3% by weight of silane coupling agent, wherein the total content of the whisker and the spherical fine particles is 60 to 80% by weight are disclosed. Mechanical strength of the resin compounds can be increased without the impairment of dimensional precision, surface smoothness and low coefficient of thermal expansion.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: March 11, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shiro Takatani, Tetsuo Mitani, Fumiaki Baba, Tsutomu Ohta, Kazuo Nakamura
  • Patent number: 5608016
    Abstract: The invention relates to salts of pyromellitic acid which comprise 1 mol of pyromellitic acid and 0.5 to 2 mol of a guanidine of the following composition: ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different radicals from the group consisting of hydrogen, alkyl, cycloalkyl and aromatic hydrocarbon residues having 1 to 8 carbon atoms, and R.sup.1 and R.sup.2 and R.sup.3 and R.sup.4 may form a joint ring which may contain an oxygen atom as heteroatom. Also claimed are the preparation of the salts and their use for matt epoxide and hybrid powder coatings.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 4, 1997
    Assignee: Huels Aktiengesellschaft
    Inventors: Rainer Gras, Elmar Wolf
  • Patent number: 5604253
    Abstract: The invention encompasses the novel compound of Formula I as well as a method of treating cyclooxygenase-2 mediated diseases comprising administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound of Formula I. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: February 18, 1997
    Assignee: Merck Frosst Canada, Inc.
    Inventors: Cheuk K. Lau, Cameron Black, Daniel Guay, Jacques Y. Gauthier, Yves LeBlanc, Patrick Roy, Yves Ducharme, Pierre Hamel
  • Patent number: 5602186
    Abstract: A process for devulcanizing a rubber vulcanizate by desulfurization involves suspending a rubber vulcanizate crumb in a solvent which preferably swells the rubber vulcanizate before or during the devulcanization reaction and adding an alkali metal, such as sodium, to the suspension. The alkali metal cleaves mono-, di- and polysulfidic cross-linkages in the rubber vulcanizate to liberate rubber polymer having a molecular weight substantially equal to that of the rubber polymer prior to vulcanization. Carbon black may also be recovered for re-use in accordance with the process of the present invention. Devulcanized rubber may be subjected to a re-vulcanization reaction without separation of rubber polymer from the solvent by addition of an appropriate curing mixture.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: February 11, 1997
    Assignee: Exxon Research and Engineering Company
    Inventors: Ronald D. Myers, Peter Nicholson, John B. MacLeod, Michael E. Moir
  • Patent number: 5596048
    Abstract: A process for making polyarylene ether-siloxane copolymers is described and the process comprises the step of contacting polyarylene ethers with a hydroxyaromatic or aromatic ether terminated siloxane reagent in the presence of an oxidant.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: January 21, 1997
    Assignee: General Electric Company
    Inventors: Margaret L. Blohm, Timothy E. Banach, Christian M. E. Bailly
  • Patent number: 5594054
    Abstract: There are provided flame retardant, flexibilized thermoplastic compositions which comprise, in admixture, a normally flammable polyphenylene ether resin, an aromatic phosphate plasticizer in an amount at least sufficient to provide a flame retardant, flexibilized composition after molding, and a thermoplastic elastomer comprising a block copolymer of a vinyl aromatic compound and a diene monomer. Preferred features comprise such compositions which also include a halogenated hydrocarbon, alumina trihydrate and/or elemental red phosphorus.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 14, 1997
    Assignee: General Electric Company
    Inventor: Gim F. Lee, Jr.
  • Patent number: 5585437
    Abstract: The present invention relates to a thermoplastic resin composition which comprises (C) 0.1 through 30 parts by weight of an adduct of alkylene oxide with a saponified copolymer of ethylene and vinyl ester of saturated carboxylic acid based on 100 parts by weight of a mixture of a crystalline thermoplastic resin (A) and a polyphenylene ether resin (B).In the resin composition, the crystalline thermoplastic resin (A) forms a continuous phase and the polyphenylene ether resin (B) forms a dispersed phase.The present invention provides a novel thermoplastic resin composition containing a polyphenylene ether resin, which has excellent flow properties, impact resistance and heat resistance.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: December 17, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Sumio Hara, Hiroomi Abe, Kenji Nagaoka
  • Patent number: RE35509
    Abstract: Compatiblized mixtures of a polyphenylene ether, a polyamide and a compatibilizer are described. The mixtures have improved physical properties as a result of using in the mixtures a polyamide having a terminal amine group to terminal carboxyl group ratio of greater than 1.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: May 13, 1997
    Assignee: General Electrical Company
    Inventors: Susumi Fujii, Hiromi Ishida, Masataka Morioka, Akihiro Saito, Roelof van der Meer