Patents Examined by John C. Bleutge
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Patent number: 5395912Abstract: There is provided an epoxy resin composition represented by the general formula: ##STR1## wherein R.sub.1 represents an alkyl or cycloalkyl group having 1 to 9 carbon atoms, or halogen, R.sub.2 to R.sub.4 independently represent hydrogen, an alkyl or cycloalkyl group having 1 to 9 carbon atoms, or halogen, and X represents hydrogen, an alkyl group having 1 to 9 carbon atoms, or an aryl group, and n represents an average number of repeating units of 0.1 to 1.6. Cured products prepared from the epoxy resin have a lower hygroscopicity and a balance between thermal resistance and curing performance.Type: GrantFiled: November 22, 1993Date of Patent: March 7, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Noriaki Saito, Takashi Morimoto, Kazuo Takebe, Yutaka Shiomi, Shigeki Naitoh, Shuichi Kanagawa
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Patent number: 5395890Abstract: A styrene-based resin composition containing (A) a styrene-based resin with mainly syndiotactic configuration and (B) a thermoplastic resin other than the styrene-based resin exhibit excellent heat resistance and impact resistance. Optionally, the styrene-based resin composition may further contain (C) a rubber polymer and/or (D) an inorganic filler. More particularly, a composition containing 1-98% by weight (A) 1-98% by weight of a styrene-based resin with mainly syndiotactic configuration and 1-98% by weight (B) a polyethylene terephthalate resin or a polyester resin is disclosed.Type: GrantFiled: April 17, 1990Date of Patent: March 7, 1995Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Takashi Sumitomo, Keisuke Funaki, Toshikazu Ijitsu, Michihiro Sawada, Masahiko Kuramoto, Masakazu Suzuki
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Patent number: 5395875Abstract: Compositions comprising copolyetherester resins, copolyetherimide ester resins, or mixtures thereof, in combination with a high molecular weight polyester resin or mixture of such resins, with relatively high loadings of fillers selected from zinc oxide, barium sulfate, zirconium oxide, zirconium silicate, strontium sulfate or a mixture of any of such fillers, provide highly dense thermoplastic molded articles with properties suitable to replace ceramics and filled thermosets in many important applications.Type: GrantFiled: February 16, 1993Date of Patent: March 7, 1995Assignee: General Electric CompanyInventors: Joel D. Allen, Dennis W. Champlain, Richard J. Clark, Lawrence R. Wallace
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Patent number: 5393808Abstract: A composition of matter especially for the formation and development of wear surfaces of decorative or aesthetic character is provided which comprehends a matrix and discrete reforcing elements embedded in the matrix. The matrix is resin-based with the resin being hydrogenated bis-phenol A which is mixed with a suitable low profile additive, a catalystic agent, a flame retardant, an extender, and a inhibitor while the reinforcer is constituted of glass fiber particles.Type: GrantFiled: June 9, 1994Date of Patent: February 28, 1995Assignee: The Swan CorporationInventors: Anthony Buonaura, John W. Moore
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Patent number: 5391588Abstract: Curable compositions comprising (A) an organopolysiloxane of the following general formula (1): ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 are monovalent hydrocarbon groups, and R.sup.4 is a divalent organic group, (B) a silane having an .alpha.-silylester group, (C) a photoinitiator, and (D) a curing catalyst. The compositions are both photo-curable and room-temperature-curable. When cured by irradiation with light, the compositions give cured products having good rubber properties.Type: GrantFiled: December 14, 1993Date of Patent: February 21, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Masatoshi Arai, Kazutoshi Fujioka
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Patent number: 5391679Abstract: Polyether siloxanes, which are linked to the polysiloxane backbone through Si--C bonds, are synthesized by reacting given polysiloxanes with a compound having at least one epoxide group in such amounts, that there are at least two epoxide groups per OH group, in the presence of Lewis acids at temperatures not exceeding 60.degree. C. or in the presence of complex catalysts, which accelerate the addition between epoxide groups and hydroxyl groups, at temperatures up to 140.degree. C., the reaction optionally being carried out in the presence of an inert solvent. The polyether siloxanes obtained have a defined functionality and are free of excess, unreacted polyol components.Type: GrantFiled: May 17, 1993Date of Patent: February 21, 1995Assignee: Th. Goldschmidt AGInventors: Georg Burkhart, Dietmar Schaefer, Andreas Weier, Dietmar Wewers
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Patent number: 5391638Abstract: This invention provides organosiloxane compounds containing silicon-bonded polyoxometalate (POM) structures that are present as pendant groups. The invention also provides methods for preparing these reaction products.Type: GrantFiled: December 27, 1993Date of Patent: February 21, 1995Assignee: Dow Corning CorporationInventors: Dimitris E. Katsoulis, John R. Keryk
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Patent number: 5389709Abstract: Provided are resin compositions comprising the following (A), (B), (C), which is at least one member selected from (C.sub.1) through (C.sub.3), and (D):(A): a polyolefin,(B): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(C):(C.sub.1): at least one inorganic substance selected from titanium oxide, talc, calcium carbonate, mica and absorptive inorganic materials,(C.sub.2): at least one compound selected from the group consisting of metal salts of higher fatty acid having 8 to 22 carbon atoms, metal salts of ethylenediaminetetraacetic acid and hydrotalcite, and(C.sub.3): a polyolefin modified with an unsaturated carboxylic acid or derivatives thereof;and,(D): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate-component of at least 20%.Type: GrantFiled: November 6, 1992Date of Patent: February 14, 1995Assignee: Kuraray Co., Ltd.Inventors: Sumio Itamura, Tohei Moritani, Toshiaki Sato, Taichi Negi
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Patent number: 5389728Abstract: Moisture-curable, melt-processible, graft copolymers are obtained by reacting certain direct ethylene copolymers having copolymerized therein a glycidyl containing comonomer, with a specific aminosilane, N-tert-butylaminopropyl trimethoxysilane. The compositions are useful as hot-melt moisture-curable adhesives, as co-extrudable adhesives, and in wire and cable and several other applications.Type: GrantFiled: June 1, 1994Date of Patent: February 14, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: George W. Prejean
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Patent number: 5389726Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.Type: GrantFiled: July 5, 1994Date of Patent: February 14, 1995Assignee: Dow Corning CorporationInventor: Milan F. Sojka
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Patent number: 5387658Abstract: The invention relates to crosslinked castor oil derivatives which, as thickeners in liquid oils, give colorless and ageing-resistant oleogels and viscous oils even at low temperatures. The crosslinking species may be at least one of a di- or polycarboxylic acid, a olioisocyanate, and a oligoepoxide.Type: GrantFiled: September 3, 1993Date of Patent: February 7, 1995Assignee: Huels AktiengesellschaftInventors: Wolfgang Schroder, Klaus Jenni
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Patent number: 5385984Abstract: Polyarylene ether-organopolysiloxane copolymers are provided having amine, or ester connecting linkages between blocks resulting from the melt extrusion of epoxy, carboxy or amine functionalized polyarylene ether with epoxy, carboxy or amine functionalized organopolysiloxane.Type: GrantFiled: October 21, 1993Date of Patent: January 31, 1995Assignee: General Electric CompanyInventors: Margaret L. Blohm, Sterling B. Brown, George T. Seeger, Patricia P. Anderson
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Patent number: 5385975Abstract: Polymer particles including polysiloxane is disclosed. The polymer particles are prepared by condensing at least one organosilane or organosiloxane compound in the presence of organic polymer particles which are prepared from specific monomers and dispersed in an aqueous medium. The polymer particles possess excellent water resistance, weatherability, water repellency, adhesion, and flexing resistance, and thus are useful as water paints, coating agents, carpet packing material, floor polishing agents, cementing medium, and the like.Type: GrantFiled: December 28, 1992Date of Patent: January 31, 1995Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Katsuhiro Nakamura, Minoru Kato, Yasuhisa Watanabe, Yasunori Matsubara, Yorinobu Ikeda, Yoshiaki Yonekawa, Hiroyuki Miki, Akio Hiraharu, Nobuyuki Ito, Osamu Kurita, Yasunobu Kaneko, Shouzou Nishida
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Patent number: 5384370Abstract: The present invention concerns rubber-based composite materials swellable with water and associated methods of production. A swellable rubber material according to the present invention comprises a vulcanized non-silicone rubber selected from the group consisting of natural rubber, butadiene-styrene rubber, bromobutyl rubber, and ethylene-propylene rubber; and a hydrogel filler cross-linked by a crosslinking agent, wherein the composite material is vulcanizable at a temperature up to 150.degree. C., is thermoformable, possesses shape memory after thermoforming, and is swellable with water or aqueous solutions.Type: GrantFiled: January 31, 1994Date of Patent: January 24, 1995Assignee: Ceskoslovenska akademie vedInventors: Petr Vondracek, Petr Lopour, Jiri Sulc
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Patent number: 5384075Abstract: An addition-curable type organopolysiloxane composition having a volume resistivity of 10.sup.7 .OMEGA.cm or below, comprising (A) an organopolysiloxane having at least two alkenyl group in its molecule and a viscosity at 25.degree. C. of from 100 to 200,000 cSt, (B) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in its molecule, (C) a platinum group metal catalyst, (D) an organosilicon compound which has at least one silicon-bonded hydrogen atom in its molecule and in which at least one member selected from the group consisting of epoxy group-containing organic groups and alkoxy groups is attached to a silicon atom, and (E) an electrically conductive filler. This composition can be cured by an ultra high frequency heating system to form an adhesive cured product. It is therefore possible to obtain cured products with stable physical properties under constantly fixed conditions irrespective of the heat capacity of adherends.Type: GrantFiled: March 26, 1993Date of Patent: January 24, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Takehide Okami
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Patent number: 5384355Abstract: A polymer concrete pipe liner is formed from a fluidized, but substantially waterless cement containing mixture applied to the pipe interior. The mixture is composed of inorganic cement particles, a liquid styrene mixture and a minor amount of one or more poly-olefinically unsaturated co-monomers. The mixture substantially excludes acrylonitrile and acrylamide. The co-monomers are preferably selected from a group including trimethylolpropane-trimethacrylate, divinyl benzene, hexadiene, and polyvinylsiloxanes. Mixing the liquid and solid components forms a slurry which is transferred to a pipe interior. Transfer properties can be controlled by particulate gradation, dissolved polymers, and rheology control additives. The pipe is then spun to centrifugally cast the liner. The composition avoids the need for high temperature curing and toxic reactive unsaturates to co-polymerize and cross-link polystyrene.Type: GrantFiled: December 17, 1993Date of Patent: January 24, 1995Assignee: Union Oil Company of CaliforniaInventor: William C. Allen
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Patent number: 5384391Abstract: A process for preparing polyarylene sulfides which comprises providing at least one cyclic arylene sulfide oligomer of the formula ##STR1## wherein S represents a sulfur atom, groups Ar, which may be the same or different, represent each an arylene radical having 6-24 carbon atoms, groups R, which may be the same or different, represent each a C.sub.1 -C.sub.12 alkyl radical, or a C.sub.1 -C.sub.12 alkoxy radical, or a primary or secondary amino group, n is an integer of from 2 to 50, and m is an integer of from 0 to 15, and heating said cyclic oligomer I in the presence of a ring opening polymerization catalyst so as to form polyarylene sulfide. The process produces polyarylene sulfides improved in chemical, physical and mechanical properties.Type: GrantFiled: December 27, 1993Date of Patent: January 24, 1995Assignee: Tosoh CorporationInventors: Hiroshi Miyata, Hiroshi Inoue, Akira Akimoto
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Patent number: 5384376Abstract: A novel organic/inorganic hybrid material has been discovered comprising a functionalized silsesquioxane and an organic component having reactive endgroups wherein the organic backbone of the organic component is selected from polyimides, polyquinoxolines, polyether ketones, polyether sulfones, and polyesters. The hybrid materials are useful as films that may be employed as reinforced plastics, lightweight metal replacements, and as coatings.Type: GrantFiled: December 23, 1992Date of Patent: January 24, 1995Assignee: Eastman Kodak CompanyInventors: Scott E. Tunney, Gary A. Rakes, Bradley K. Coltrain
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Patent number: 5380846Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as bis(trimethoxysilyltrimethylene) 2,6 pyridine dicarboxylate. Cohesive bonding is effected on both plastic and metal substrates at temperatures of less than 100.degree. C. and in less than 1 hour.Type: GrantFiled: June 13, 1994Date of Patent: January 10, 1995Assignee: General Electric CompanyInventor: Judith Stein
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Patent number: 5380783Abstract: A poly(arylene sulfide) resin composition in which the tendency of a poly(arylene sulfide) resin to cause metals making up molds, processing machinery, metal parts of inserts and the like to corrode has been inhibited, and which has good processability includes the poly(arylene sulfide) resin and, as a corrosion inhibitor, at least one substance selected from the group consisting of a metallic simple substance of molybdenum, oxoacids of molybdenum, alkali metal salts of the oxoacids of molybdenum, alkaline earth metal salts of the oxoacids of molybdenum, the ammonium salts of the oxoacids of molybdenum, the zinc salts of the oxoacids of molybdenum, a metallic simple substance of tungsten, oxoacids of tungsten, alkali metal salts of the oxoacids of tungsten, alkaline earth metal salts of the oxoacids of tungsten, the ammonium salts of the oxoacids of tungsten and the zinc salts of the oxoacids of tungsten. The corrosion inhibitor being incorporated in a proportion within a range of 0.Type: GrantFiled: August 30, 1993Date of Patent: January 10, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Toshihiko Ono, Yoshinobu Itoh, Yukio Ichikawa