Patents Examined by Mark Sweet
  • Patent number: 5504141
    Abstract: Polyphenylene sulphide-based compositions with high impact strength essentially comprising, by weight, 60 to 99.5 parts of polyphenylene sulphide and 0.5 to 40 parts of a combination C comprising at least one compound Cl chosen form olefinic elastomers comprising epoxy groups and at least one tertiary amine C2. During the preparation of these compositions, the tertiary amine C2 is preferably incorporated in last place with respect to the other constituents.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: April 2, 1996
    Assignee: Solvay (Societe Anonyme)
    Inventors: Marie-Paule Collard, Danny Van Hoyweghen, Morand Lambla, Raphael Mestanza
  • Patent number: 5490982
    Abstract: A cosmetic microemulsion composition is provided including a fragrance and a vehicle system noninterfering with the fragrance scent and including water, isoeicosane and a C.sub.8 -C.sub.40 fatty glyceride ester alkoxylated with from 1 to 100 moles C.sub.2 -C.sub.3 alkylene oxide per mole of glyceride. These microemulsions are best utilized as aftershave balm with a fragrance identical if not at least quite similar to a signature perfume.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: February 13, 1996
    Assignee: Elizabeth Arden Company, Division of Conopco, Inc.
    Inventor: Marcina Siciliano
  • Patent number: 5489482
    Abstract: A film forming composition, comprising an amine-modified highly polymerized polysiloxane represented by the general formula (1): ##STR1## wherein R, which are the same or different, each represent a monovalent hydrocarbon group having 1 to 6 carbon atoms, a hydroxyl group, or a hydrogen atom, R' each represent an amino-group-containing organic group, a is an integer of 0 to 3, m is an integer of 1 or more, and n is an integer of 5 or more, provided that m+n is an integer of 2,000 or more, and dissolved in an organic solvent, which film forming composition can give a smooth soft film that is excellent in water repellency, water resistance, touch, and durability in comparison with the conventional film forming compositions.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: February 6, 1996
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masahiko Minemura, Osamu Uchida
  • Patent number: 5486558
    Abstract: Improved polymer compositions, useful in the manufacture of closures and as liners for reclosable container closures, comprising blends of semicrystalline poly(1-butene), ethylene-methylene acrylate, polypropylene random copolymer, wherein the polypropylene random copolymer and the ethylene methyl acrylate can be used singularly or in combination, a lubricating agent and optionally, low density polyethylene. The inventive polymer compositions are recyclable, and do not present the environmental, health, and odor problems associated with polymer liners known in the art.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: January 23, 1996
    Assignee: Shell Oil Company
    Inventor: Robert W. Lee
  • Patent number: 5486549
    Abstract: Disclosed is a water-based printing ink composition exhibiting excellently low foaming behavior with sustainability even under adverse conditions of high temperature and intense shearing force encountered in the printing works. The printing ink composition comprises, besides an organic polymer as the binder resin in the form of an aqueous solution or emulsion and a coloring agent, e.g., dyes and pigments, a silicone-based defoaming composition comprising a polyoxyalkylene-modified polydiorganosiloxane, polydimethylsiloxane, finely divided silica filler and organopolysiloxane resin mainly or solely consisting of monofunctional organosiloxane units and tetrafunctional siloxane units each in a specified weight proportion.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: January 23, 1996
    Assignees: Shin-Etsu Chemical Co., Ltd., Sakata Inx Corp.
    Inventors: Akinari Itagaki, Syuuichi Azechi, Satoshi Kuwata, Yousuke Tsutsumi, Masanori Kodaiku
  • Patent number: 5476889
    Abstract: A sealer or adhesive composition based on a polyoxyalkylene polymer having a silicon-containing hydrolyzable group, which has improved adhesion in a dried, cured state with a paint coating containing acrylic resins, acrylic-urethane resins, or urethane resins. The improvement involves the addition to such a sealer/adhesive composition of an alkylarylsulfonamide contained therein in an amount of least about 50 phr or more, by weight. The invention also pertains to a method applying and adhering a paint coating to such a sealer composition after it is dried.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: December 19, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ian R. Owen
  • Patent number: 5476709
    Abstract: The invention provides a polymeric insulating material having a high dielectric breakdown voltage. The material comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt. % but not greater than 10 wt. %. According to the invention, it is possible to further improve the dielectric breakdown voltage by adding to the polypropylene an inorganic oxide or hydroxide free of particles of 10 .mu.m and greater in diameter and having an average particle size not greater than 1 .mu.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: December 19, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Inoue, Shigeru Kimura, Tutomu Iwatani, Takayuki Yamada, Yukio Ishii, Ryuichi Sugimoto
  • Patent number: 5468789
    Abstract: A method is provided for making curable silicon containing acrylate silicone hardcoat compositions which employ an anaerobic gelation inhibitor such as galvinoxyl. Devolatilizing of an aqueous/organic solvent mixture from the silicon containing acrylate hardcoat formulation is conducted in an inert atmosphere. Acrylate hardcoat compositions imparting improved weathering resistance to thermoplastic substrates also are provided.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 21, 1995
    Assignee: General Electric Company
    Inventors: Larry N. Lewis, George F. Medford, Arnold Factor
  • Patent number: 5466763
    Abstract: A process is disclosed for preparing a polysulfide-epoxy prepolymer and cured co-polymer using a heavy ends waste generated in chlorinated hydrocarbon production. The process comprises first distilling the heavy ends waste to form an enriched heavy ends waste with an ethylene dichloride content less than about 10% by weight. The enriched heavy ends waste is then reacted with an alkaline polysulfide within a temperature range of about 50.degree. C. to about 150.degree. C. to form a polysulfide polymer mixture. Next, between about 5 and about 300 parts of the polysulfide polymer mixture is co-reacted with a hundred parts by weight of an epoxy resin to form a polysulfide-epoxy prepolymer or a cured co-polymer if a curing agent is present.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: November 14, 1995
    Assignee: Formosa Plastics Corporation
    Inventors: Chester C. Lee, Tao C. Chang, Yung-Hui Huang
  • Patent number: 5466491
    Abstract: There is provided a method and a composite made therefrom of an organic substrate, such as a polycarbonate and a radiation cured silicon containing polyacrylate hardcoat. Improved weathering resistance results when an anaerobic gelation inhibitor such as galvinoxyl is used during the processing of the hardcoat.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 14, 1995
    Assignee: General Electric Company
    Inventors: Arnold Factor, Larry N. Lewis
  • Patent number: 5466848
    Abstract: Sulfur-containing organosilicon compounds useful as coupling agents in vulcanizable rubbers to enhance various properties, including low rolling resistance for automobile tires, are prepared. Preferred compounds include .OMEGA., 106 '-bis (trialkoxysilylalkyl) polysulfides. In the preferred process scheme, sodium ethoxylate is reacted with hydrogen sulfide gas to yield sodium sulfide. The sodium sulfide is then reacted with sulfur to form the tetrasulfide. The product of that reaction is then reacted with chloropropyltriethoxysilane to form the compound 3,3'- bis (triethoxysilylpropyl) tetrasulfide. The use of hydrogen sulfide gas and sodium metal alcoholates provides an efficient and economical process.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: November 14, 1995
    Assignee: OSi Specialties, Inc.
    Inventor: Thomas E. Childress
  • Patent number: 5464888
    Abstract: A sealer or adhesive composition based on a polyoxyalkylene polymer having a silicon-containing hydrolyzable group, which has improved compatibility with a base or first paint coat containing acrylic resins. The improvement involves the addition to such a sealer/adhesive composition of a polar organic solvent material having both a Snyder's polarity value in the range of from 6.2 to 7.3 and belonging to Snyder's selectivity group III. In a method of the present invention, the inventive sealer/adhesive composition is wet-on-wet overcoated by a base coat of a multi-coat paint system, where the base coat contains acrylic resin, pigment and auxiliary polar solvents, while retarding and even completely preventing adverse surface defects in the base coat upon its drying (curing), such as cracking or wrinkling therein, to provide an improved coated substrate.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: November 7, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ian R. Owen
  • Patent number: 5462981
    Abstract: The method of producing plasticized polyvinyl alcohol by mixing polyvinyl alcohol in the presence of an organic plasticizer and water in a quantity which is insufficient to dissolve the polyvinyl alcohol under normal conditions, includes the steps of:i) pre-plasticizing the polyvinyl alcohol at a maximum temperature no higher than its softening point so as to produce a pre-plasticized polyvinyl alcohol having a melting point below the softening point of the polyvinyl alcohol used, andii) further processing the pre-plasticized polyvinyl alcohol thus produced at a temperature above its melting point, under shear-stress conditions and for a period of time to produce a substantially homogeneous melt.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: October 31, 1995
    Assignee: Novamont S.p.A.
    Inventors: Catia Bastioli, Vittorio Bellotti, Gianfranco Del Tredici, Roberto Ponti
  • Patent number: 5462988
    Abstract: A silicone copolymer emulsion comprising:(A) 10 to 90 wt % of a silicone component containing(i) 5 to 60 wt % of compound (a) and(ii) 95 to 40 wt % of a crosslinkable silicone;(B) 90 to 10 wt % of a copolymerizable monomer; and(C) a curing catalyst,said compound (a) being expressed by the following formula (1): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 denote alkyl, phenyl, (meth)acryloxyalkyl and the like.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: October 31, 1995
    Assignee: Showa Highpolymer Co., Ltd.
    Inventors: Yukio Doi, Wei-Zhong Zhang, Koichi Ishitani, Masayoshi Kinugasa
  • Patent number: 5462587
    Abstract: A method is described for providing a protective finish to a vinyl substrate by applying to the vinyl substrate a vinyl protectant composition. In one embodiment the composition is an abrasive free mixture of a film forming polysiloxane; a diluent; and a wax in the form of micronized particles having an average diameter of 3-12 microns. In another embodiment, the composition is a hydrocarbon solvent free mixture of a film forming polysiloxane; water; and an amorphous silica in the form of fumed silica particles having an average diameter of 7-30 nanometers.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 31, 1995
    Assignee: Dow Corning Corporation
    Inventors: Suzanne M. Greenleaf, Martin E. Cifuentes
  • Patent number: 5459186
    Abstract: Heat-sealable thermoplastic elastomeric films comprise from approximately 35% to about 65% of an A-B-A block copolymer wherein "A" blocks are derived from polystrene or a polystrene homolog and said "B" blocks being derived from lower alkenes and from about 25% to about 55% of an ethylene vinyl acetate copolymer, the ethylene vinyl acetate copolymer comprising approximately 28% vinyl acetate. The films are heat-sealable to various substrates including polyvinyl chloride. Once sealed to the substrate, the film may be readily peeled from the substrate by the application of a low and relatively constant peel force. A method for measuring the peel strengths of the film is disclosed. The films are especially adapted to being heat-sealed to a substrate which forms, together with the substrate a package, or multiple serially connected packages.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: October 17, 1995
    Assignee: Rexene Corporation
    Inventor: Paul D. Gage
  • Patent number: 5459185
    Abstract: In a one-part (one-pack) moisture-curing urethane adhesive comprising a urethane prepolymer having isocyanate groups (NCO) at the terminus, said urethane prepolymer being a reaction product of a polyol and an excess amount of a polyisocyanate, the improvement which comprises adding 0.01 to 5% by weight of a gelling agent based on the whole amount of the adhesive, and optionally adding a thermoplastic urethane multi-block copolymer resin and a thixotropic agent selected from the group consisting of a hydrophilic colloidal silica and a polysiloxane-polyoxyalkylene copolymer. The adhesive of the present invention can obviate float or slippage of glass in the adhesive application of window glass of automobiles.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: October 17, 1995
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Yoshihiro Nakata, Masaharu Takada, Yukio Hayashi
  • Patent number: 5455299
    Abstract: Aqueous liquid for primers are prepared from a copolymer consisting essentially of the following components (A), (B) and (C) in aqueous medium where (A) is a cationic monomer represented by the following general formula (1) ##STR1## wherein Y is organic or inorganic monovalent anion; m is an integer 0 to 3 and n is an integer 1 to 3;(B) is an alkoxysilane monomer represented as the following general formula (2) ##STR2## (C) is an ethylenic unsaturated monomer, and wherein a structural unit derived from the (A) component accounts for not less than 5% of the copolymer, a structural unit derived from the (B) component accounts for not less than 0.5% by weight of the copolymer and a structural unit derived from the (C) component accounts for not more than 94.5% by weight of the copolymer.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: October 3, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Masao Maegawa
  • Patent number: 5438096
    Abstract: Improved flame retardant polymer latices are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the latices include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the latices include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the latices include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: August 1, 1995
    Assignee: Great Lakes Chemical Corporation
    Inventors: Jin-liang Wang, Nicolai A. Favstritsky, Richard S. Rose
  • Patent number: 5432257
    Abstract: A process is disclosed for preparing a polysulfide polymer using a heavy ends waste generated in chlorinated hydrocarbon production. The process involves first pretreating the heavy ends waste by an enriching process to form an enriched heavy ends waste with an ethylene dichloride content less than 10% by weight. The enriched heavy ends waste is then reacted with alkaline polysulfide within a temperature range of 50.degree. C. to 150.degree. C. to form a polysulfide polymer.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: July 11, 1995
    Assignee: Formosa Plastics Corporation
    Inventors: Chester Lee, Tao C. Chang, Yung-Hui Huang