Carbocyclic Group, E.g., Aryl, Etc. Patents (Class 524/396)
-
Patent number: 6521685Abstract: Certain thermoplastic additives that induce simultaneous low clarity and high nucleation efficacy are provided. Such additives include combinations of certain bicyclic salts (which by themselves induce very high nucleation efficacy) and certain benzylidene sorbitol acetals and derivatives (hereinafter collectively referred to as “DBSs”)(which alone provide very low haze measurements and thus highly desirable clarity characteristics). In comparison, other types of standard thermoplastic nucleators, such as sodium benzoate and sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl)phosphate provide relatively high peak crystallization temperatures, but do not combine synergistically with DBSs to provide the same results as for the inventive combination of bicyclic salts and DBSs.Type: GrantFiled: July 3, 2001Date of Patent: February 18, 2003Assignee: Milliken & CompanyInventor: Xiaodong Edward Zhao
-
Publication number: 20030004242Abstract: Compounds of and compositions comprising specific salts of saturated [2.2.2] dicarboxylate in order to provide highly desirable properties within thermoplastic (e.g., polyolefin) articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such thermoplastics, are easy to produce and handle, and relatively inexpensive to manufacture. Such compounds induce high peak crystallization and improved stiffness within thermoplastics. Also, thermoplastic compositions comprising such novel nucleating agents exhibit improved heat distortion properties and clarity levels in comparison with the closest unsaturated salt nucleating agents. Thermoplastic additive compositions and methods of producing thermoplastics with such compounds are also contemplated within this invention.Type: ApplicationFiled: June 5, 2001Publication date: January 2, 2003Inventor: Xiaodong Edward Zhao
-
Patent number: 6448314Abstract: The subject of the present invention is the use of zinc ateylacetonate comprising at least 4.4% by weight of water as halogenated polymer stabilizer. Its subject is likewise a process for the preparation of zinc acetylacetonate monohydrate, in which a zinc oxide and/or hydroxide and acetylacetone are brought into contact, in the presence of a solvent; the said solvent being used with a quantity of between 20 and 200 parts by weight, per 100 parts by weight of acetylacetone.Type: GrantFiled: November 17, 2000Date of Patent: September 10, 2002Assignee: Rhodia ChimieInventor: Francoise Henrio
-
Patent number: 6319972Abstract: The compositions contain, as heat stabilizer, an effective amount of bismuth carboxylate chosen from bismuth succinate, acrylate and terephthalate and their mixtures. In general, this amount is at least 0.05 part and does not exceed 5 parts per 100 parts by weight of vinylidene fluoride polymer. The heat stabilizers according to the invention are suitable both for the thermal stabilization of virgin polymers and for the stabilization/decoloration of thermally degraded waste polymers.Type: GrantFiled: June 10, 1999Date of Patent: November 20, 2001Assignee: Solvay, S.A.Inventors: Valérie Bromont, Jean-Jacques Robin, Etienne Hannecart
-
Patent number: 6288149Abstract: Adhesive compositions are disclosed that include a block copolymer that includes monomers selected from the group consisting of styrene, isoprene, butadiene, and combinations thereof, from about 0.5% to about 10% by weight surfactant, and a tackifying agent. The adhesive composition has a surface tension of at least about 34 dynes/cm2.Type: GrantFiled: October 8, 1999Date of Patent: September 11, 2001Assignee: H. B. Fuller Licensing & Financing, Inc.Inventor: Mark S. Kroll
-
Patent number: 6271303Abstract: An interpolymer consisting essentially of units derived from vinyl fluoride and at least two highly fluorinated monomers, at least one of the highly fluorinated monomers introducing into the polymer a side chain of at least one carbon atom. Films from these interpolymers have substantially reduced haze, low surface tension, and can be made to form solutions in common polar organic solvents that are stable at room temperature. The extremely low surface tensions obtained with these interpolymer films provide enhanced stain resistance and improved release properties compared to polyvinyl fluoride or known vinyl fluoride interpolymers.Type: GrantFiled: November 13, 2000Date of Patent: August 7, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald Earl Uschold
-
Patent number: 6268422Abstract: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.Type: GrantFiled: December 4, 1995Date of Patent: July 31, 2001Assignee: Lord CorporationInventors: Mark A. Weih, Helmut W. Kucera, Patrick A. Warren, Douglas H. Mowrey
-
Patent number: 6245844Abstract: Disclosed are polyester polymer compositions containing sodium additives as nucleating agents. More specifically disclosed is the use of mono-sodium salts of dicarboxylic acids as nucleating agents.Type: GrantFiled: March 19, 1999Date of Patent: June 12, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Joseph Varapadavil Kurian, Yuan Feng Liang
-
Patent number: 6242519Abstract: A thermoplastic glass filled resin composition having improved heat distortion properties consisting essentially of a resin blend consisting essentially of an alkylene aryl polyester, a core-shell ASA (acrylate-styrene-acrylonitrile interpolymer) and an effective amount of talc, polyesteramide, or dicarboxcylic acid salt for enhancing the heat distortion properties of the resin.Type: GrantFiled: January 14, 1999Date of Patent: June 5, 2001Assignee: General Electric CompanyInventors: Estelle Cheret, Richard De Vries, Frans Mercx, Vladimir Kwiecinski
-
Patent number: 6232381Abstract: The process of this invention can be utilized to stabilize tin-coupled rubbery polymers. This process involves adding a chelating diamine or a sodium alkoxide to the rubbery polymer after the tin coupling has been carried out. This invention more specifically discloses a process for improving the stability of a tin-coupled rubbery polymer which comprises adding a sodium alkoxide to the tin-coupled rubbery polymer subsequent to the time at which the tin-coupled rubbery polymer is coupled. Sodium alkoxide is a representative example of a sodium alkoxide that can be used to stabilize the tin-coupled rubbery polymer.Type: GrantFiled: July 30, 1999Date of Patent: May 15, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Adel Farhan Halasa
-
Patent number: 6150454Abstract: The invention is directed to improved poly(terephthalic acid diester)-poly(isophthalic acid diester) resins, and in particular to improved polyethylene terephthalate-polyethylene isophthalate resin formulations, the improved formulations containing nucleating and chain-branching agents. The improved formulations of the invention have particular utility in the manufacture of plastic bottles.Type: GrantFiled: November 3, 1998Date of Patent: November 21, 2000Assignee: Arteva North America S.A.R.L.Inventors: Audrey C. Wu, Xiaoyan Huang, Jim Schwietert
-
Patent number: 6080804Abstract: Processes for producing free flowing, Mannich and glyoxal polyacrylamide water soluble and water-swellable granules from a water-in-oil emulsion and compositions comprising such dry polymer granules are disclosed.Type: GrantFiled: June 7, 1995Date of Patent: June 27, 2000Assignee: Cytec Technology Corp.Inventors: William Bloor Davies, Gary Kaui Lani Miller
-
Patent number: 6015854Abstract: The present invention teaches propylene-ethylene copolymers of about 5 to about 100 dg/min melt flow that have a homopolymer phase combined with a copolymer rubber phase in which the ethylene content of the rubber is between about 75 to about 95% w and a clarity of greater than 25%. The rubber content of the copolymer ranges between about 3% w to about 60% w. In addition to improved clarity, these copolymers have high stiffness (flexural modulus) and good falling weight impact toughness at low temperatures.Type: GrantFiled: October 24, 1997Date of Patent: January 18, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: James Douglas McCullough, Jr.
-
Patent number: 6005034Abstract: A propylene-ethylene copolymer composition is obtained which has good moldability and an excellent balance of rigidity, toughness, and impact-strength. The composition has a melt flow rate of 10 to 300 g/10 minutes and is obtained by producing 60 to 95% by weight, based on the weight of whole polymer, of a propylene polymer having a melt flow rate (ASTM D1238) in the range of 100 to 1,000 g/10 minutes and having a ratio (Cf) of integrated values of the propylene polymer dissolved in o-dichlorobenzene at a temperature of lower than 112.degree. C., and a temperature of 112.degree. C. or higher, respectively, of 0.5 or less, by carrying out polymerization of propylene in the presence of a highly stereoregular catalyst and hydrogen in a polymerization step (I), and then producing 5 to 40% by weight, based on the weight of whole polymer, of an ethylene-propylene copolymer by feeding ethylene and propylene to the propylene polymer to react so that the content of ethylene becomes 30 to 80% by weight.Type: GrantFiled: April 30, 1997Date of Patent: December 21, 1999Assignees: Chisso Corpoation, Toyota Jidosha Kabushiki KaishaInventors: Teruaki Hayashida, Shinei Gima, Kouichi Hatada, Osamu Kojima, Ken Shimizu, Hirokazu Nakajima, Takao Nomura, Yoshihiro Kanome, Takeyoshi Nishio
-
Patent number: 5981639Abstract: The process of this invention can be utilized to stabilize tin-coupled rubbery polymers. This process involves adding a chelating diamine or a sodium alkoxide to the rubbery polymer after the tin coupling has been carried out. This invention more specifically discloses a process for improving the stability of a tin-coupled rubbery polymer which comprises adding a sodium alkoxide to the tin-coupled rubbery polymer subsequent to the time at which the tin-coupled rubbery polymer is coupled. Sodium alkoxide is a representative example of a sodium alkoxide that can be used to stabilize the tin-coupled rubbery polymer.Type: GrantFiled: April 10, 1998Date of Patent: November 9, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Adel Farhan Halasa
-
Patent number: 5981636Abstract: Modifying agents for polyolefins enhance nucleation and crystallization of the polyolefins and provide improved optical and/or physical properties. The modifying agents are compounds of formulas (I) and (II): or a salt thereof, wherein X, Y, R1, R2, R3 and R4 and R8 are as defined in the specification.Type: GrantFiled: December 27, 1996Date of Patent: November 9, 1999Assignee: 3M Innovative Properties CompanyInventors: Stephen E. Amos, Kent E. Nielsen, Chantelle McRoberts, Markus A. Wicki
-
Patent number: 5973082Abstract: High solids coating compositions are made from organic solvent solutions of (A), the reaction product of (1) an epoxidized vegetable oil, (2) a diglycidyl ether of a dihydric phenol, and (3) a dihydric phenol, reacted with (B) an unsaturated fatty acid, and (C) an alkylacetoacetate.Type: GrantFiled: August 16, 1994Date of Patent: October 26, 1999Assignee: Shell Oil CompanyInventor: Jim D. Elmore
-
Patent number: 5948839Abstract: Polypropylene impact copolymer compositions are provided which contain a homopolymer phase of predominantly homopolymeric polypropylene, a copolymer phase of copolymerized ethylene and propylene, and a nucleating agent. The inventive compositions have a rubber content (Fc) in the range of 25 to 45% by weight, a crystallization temperature in the range of 122 to 132.degree. C., a melt flow in the range of about 7 to about 60 dg/min, and a ratio of the intrinsic viscosity of the copolymer phase to the intrinsic viscosity of the homopolymer phase of 1.4 to about 1.9. The polypropylene impact copolymer compositions may be used to form cast films which preferably are soft, quiet, and suitable for use in products to be used next to the skin, such as diapers, adult incontinence pads and feminine hygiene products.Type: GrantFiled: May 28, 1997Date of Patent: September 7, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Ananda M. Chatterjee
-
Patent number: 5929152Abstract: The compositions contain, as heat stabilizer, an effective amount of bismuth carboxylate chosen from bismuth succinate, acrylate and terephthalate and their mixtures. In general, this amount is at least 0.05 part and does not exceed 5 parts per 100 parts by weight of vinylidene fluoride polymer. The heat stabilizers according to the invention are suitable both for the thermal stabilization of virgin polymers and for the stabilization/decoloration of thermally degraded waste polymers.Type: GrantFiled: March 24, 1997Date of Patent: July 27, 1999Assignee: Solvay (SocieteAnonyme)Inventors: Valerie Bromont, Jean-Jacques Robin, Etienne Hannecart
-
Patent number: 5888427Abstract: An overbased mixture of aliphatic and aromatic carboxylates salts useful in making low-fogging thermal stabilizers for PVC is made by reacting zinc oxide with fatty acid and such as stearic acid, then adding aromatic acids, and then adding and reacting one or both of magnesium oxide and calcium oxide, under controlled heating conditions to maintain fluidity while minimizing side reactions, and then conditioning the reaction product to remove volatiles.Type: GrantFiled: June 6, 1997Date of Patent: March 30, 1999Assignee: Witco CorporationInventors: Lawrence R. Brecker, Radu Bacaloglu, Michael Fisch, Mukund Shah, Otto Loeffler
-
Patent number: 5872166Abstract: PVC stabilizers containing an overbased mixture of salts, such as magnesium and zinc salts, of unsubstituted and/or alkyl-substituted benzoic acid and optionally one or more fatty aliphatic acids, which contain a carbonate and/or silicate stabilizer, and which preferably also contain one or more polyols containing 2 to 10 hydroxyl groups, exhibit significant and unexpected reduction in the tendency to volatilize and form "fog" upon exposure of the formulation to moderately elevated temperatures, without loss of other desirable stabilization properties.Type: GrantFiled: June 20, 1995Date of Patent: February 16, 1999Assignee: Witco CorporationInventors: Stuart D. Brilliant, Kook Jin Bae
-
Patent number: 5849815Abstract: An ink including a dye; a liquid medium for dissolving the dye; and a polymer, wherein the surface tension and the viscosity of the ink respectively are 26.times.10.sup.-5 N/cm to 40.times.10.sup.-5 N/cm and 0.7.times.10.sup.-3 Pa.multidot.s to 12.times.10.sup.-3 Pa.multidot.s, and the forward contact angle with respect to a recording medium, on which an image will be printed, ranges from 60.degree. to 180.degree. at 25.degree. C. An ink jet recording method and recording apparatus employing the ink are also disclosed.Type: GrantFiled: October 31, 1996Date of Patent: December 15, 1998Assignee: Canon Kabushiki KaishaInventors: Makoto Aoki, Yoshihisa Takizawa, Yutaka Kurabayashi
-
Patent number: 5821380Abstract: Novel 2-cyanoacrylic esters I ##STR1## where the radicals have the following meanings: R.sup.1 and R.sup.2 are each hydrogen or a radical having an iso- or heterocyclic ring system with at least one iso- or heteroaromatic nucleus, and at least one of the radicals R.sup.1 or R.sup.2 must be different from hydrogen,n is from 2 to 10, andX is, when n=2, a radical of the formula II ##STR2## where m is from 2 to 8, and X is, when n>2, the radical of an n-hydric aliphatic or cycloaliphatic polyol having 3-20 carbon atoms, it also being possible for a cycloaliphatic radical to contain 1 or 2 hetero atoms, and for an aliphatic radical to be interrupted by up to 8 non-adjacent oxygen atoms, sulfur atoms, imino or C.sub.1 -C.sub.4 -alkylimino groups, are used as light stabilizers.Type: GrantFiled: May 12, 1997Date of Patent: October 13, 1998Assignee: BASF AktiengesellschaftInventors: Martin Holderbaum, Alexander Aumuller, Hubert Trauth, Guido Voit, Karin Sperling, Alfred Krause
-
Patent number: 5773499Abstract: A natural rubber latex has been preserved and stabilized by at least one water-soluble carboxylic acid salt of the formula R--COO.sup.- M.sup.+, in which R is an alkyl or alkenyl radical having a branched carbon chain and M.sup.+ is a monovalent cation. A process for the preparation of the rubber latex mixture uses a water-soluble carboxylic acid salt for the preservation and stabilization of natural latex.Type: GrantFiled: March 14, 1997Date of Patent: June 30, 1998Assignee: Schill & Seilacher (Gmbh & Co.)Inventors: Henning Umland, Clara Petri
-
Patent number: 5688843Abstract: An oil-absorbent composition including 30 to 99.5 parts by weight of (I) an oil-absorbent, cross-linked polymer formed from 96-99.999% by weight of (A) monomer having a polymerizable unsaturated group in the molecule, said monomer (A) containing mainly a monomer having a solubility parameter of not more than 9, and 4-0.001% by weight of (B) a cross-linking monomer having at least two polymerizable unsaturated groups in the molecule, provided the sum of monomer (A) and cross-linking monomer (B) is 100%, and 70 to 0.5 to parts by weight of (IV) at least one compound selected from the group consisting of (II) inorganic compounds having a methanol value of not less than 25% and (III) substantially water insoluble organic acid salts, provided the sum of oil-absorbent, cross-linked polymer (I) and compound (IV) is 100 parts by weight.Type: GrantFiled: October 26, 1995Date of Patent: November 18, 1997Assignee: Nippon Shokubai Co., Ltd.Inventors: Toru Inaoka, Tomoki Gomi, Yoshiyuki Onda, Toshio Tamura, Hideyuki Tahara
-
Patent number: 5650459Abstract: A poly(arylene sulfide) resin composition comprising in admixture a poly(arylene sulfide) resin and at least one nickel compound selected from the group consisting of (a) nickel carbonates, (b) nickel hydroxide, (c) organic carboxylates of nickel and (d) nickel oxide is provided. According to the resin composition of the invention, the metal corrosiveness of the poly(arylene sulfide) resin upon and after its molding or forming is sufficiently inhibited without deteriorating the excellent heat resistance, mechanical properties, processability and the like inherent in the resin.Type: GrantFiled: March 1, 1995Date of Patent: July 22, 1997Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Toshihiko Ono
-
Patent number: 5641825Abstract: The invention provides a composition of matter having oxygen scavenger capabilities. The composition comprises a blend of a first polymeric component comprising a polyolefin, the first polymeric component having been grafted with an unsaturated carboxylic anhydride or an unsaturated carboxylic acid, or combinations thereof, or with an epoxide; a second polymeric component having OH, SH or NHR.sup.2 groups where R.sup.2 is H, C.sub.1 -C.sub.3 alkyl, substituted C.sub.1 -C.sub.3 alkyl; and a metal salt capable of catalyzing the reaction between oxygen and the second polymeric component, the polyolefin being present in an amount sufficient so that the blend is non phase-separated. In the preferred composition maleic anhydride is the grafted material, the second polymeric component is MXD6 nylon and the metal is cobalt. A method of providing a homogeneous blend of a polyolefin with a second polymeric component having OH, SH or NHR.sup.2 groups is also set forth.Type: GrantFiled: March 28, 1994Date of Patent: June 24, 1997Assignee: Chevron Chemical CompanyInventors: Robert Bacskai, Ta Yen Ching, Kiyoshi Katsumoto
-
Patent number: 5641828Abstract: A polypropylene composition comprising 100 parts by weight of a crystalline propylene polymer having a molecular weight distribution (Mw/Mn) of less than 5.0 and from 0.0001 to 1.0 part by weight of a crystal nucleating agent, the composition having a crystallization temperature at least 1.5.degree. C. higher than the crystallization temperature of the crystalline propylene polymer.Type: GrantFiled: September 15, 1995Date of Patent: June 24, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Hajime Sadatoshi, Seiichiro Ima, Hiroyuki Tanimura
-
Patent number: 5623007Abstract: Reversion resistance of a sulfur cured aircraft carcass rubber compound is greatly improved by incorporating, as anti-reversion agents, 1.5-6 phr of a mixture of zinc salts of one or more C.sub.8 -C.sub.10 aliphatic carboxylic acids and one or more monocyclic aromatic acids, and 0.8-2 phr of a bis-citraconimido compound. Much greater reversion resistance is obtained with a combination of the two anti-reversion agents than with either anti-reversion agent alone.Type: GrantFiled: August 29, 1996Date of Patent: April 22, 1997Assignee: Kumho Tire Co., Ltd.Inventor: Thomas P. Kuebler
-
Patent number: 5567755Abstract: A coating solution for forming a composite metal oxide film containing: (A) at least one member selected from the group consisting of a reaction product, a partial hydrolyzate of the reaction product, and a partial acylated product of the reaction product wherein the reaction product is obtained by a reaction between at least one compound containing a carbonyl group and at least one metal compound; (B) a polyhydric alcohol compound; and (C) at least one member selected from the group consisting of a metal carboxylate compound; a metal nitrate compound; and a metal nitrite compound, which coating solution may also contain an alcohol-soluble polymer. The present invention is also directed to a process of making the same.Type: GrantFiled: April 17, 1995Date of Patent: October 22, 1996Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Akira Hashimoto, Katsuya Tanitsu
-
Patent number: 5539032Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming corrosion-resistant topcoat comprising an alkyd resin binder and a combination of pigments consisting essentially of an aluminum triphosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 40 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil-soluble surface active or wetting agent and up to about 40 parts by weight of at least one organic solvent.Type: GrantFiled: June 7, 1995Date of Patent: July 23, 1996Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles R. Hegedus, Donald J. Hirst, Anthony T. Eng
-
Patent number: 5534578Abstract: The present invention relates to a silica reinforced rubber composition and pneumatic tires having treads comprised of the silica reinforced rubber compositions. The silica reinforced rubber composition comprises an elastomer, silica, optionally carbon black and a silica coupler comprised of the zinc salt, the ammonium salt or the sodium salt of salicylic acid.Type: GrantFiled: September 6, 1994Date of Patent: July 9, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom
-
Patent number: 5508332Abstract: A coating composition for forming a composite metal oxide film containing: (A) at least one member selected from the group consisting of a reaction product, a partial hydrolyzate of the reaction product, and a partial acylated product of the reaction product wherein the reaction product is obtained by a reaction between at least one compound containing a carbonyl group and at least one metal compound; (B) a polyhydric alcohol compound; and (C) at least one member selected from the group consisting of a metal carboxylate compound; a metal nitrate compound; and a metal nitrite compound, which coating solution may also contain an alcohol-soluble polymer, and a process of making the same.Type: GrantFiled: November 22, 1993Date of Patent: April 16, 1996Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Akira Hashimoto, Katsuya Tanitsu
-
Patent number: 5491185Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising an epoxy resin binder and a combination of pigments consisting essentially of an aluminum triphosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic paint solvent.Type: GrantFiled: March 7, 1994Date of Patent: February 13, 1996Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles R. Hegedus, Donald J. Hirst, Anthony T. Eng
-
Patent number: 5473008Abstract: The invention relates to a casting composition comprising a ceramic powder, an organic solvent, binder, plasticizer and a dispersant, which composition is suitable for producing green ceramic sheets by the tape casting process. The dispersant present in the casting composition of the invention is a polyvinyl alcohol/fatty acid ester having a degree of conversion in the range from 50 to 100%. The invention also relates to the use of such a casting composition for producing ceramic green sheets and a process for producing ceramic substrates using a green sheet thus produced.Type: GrantFiled: May 18, 1994Date of Patent: December 5, 1995Assignee: Hoechst AktiengesellschaftInventors: Friedrich Hessel, Katharina Seitz, Andreas Roosen, Gerhard Wegner, Wolfgang Meyer, Wolfgang Sigmund
-
Patent number: 5427821Abstract: A corrosion-resistant polyurethane coating for application directly to a face as a self-priming topcoat comprising major amount of a polyurethane binder and minor amount of a combination of pigments consisting essentially of an aluminum phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about parts by weight of at least one organic solvent.Type: GrantFiled: June 20, 1994Date of Patent: June 27, 1995Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles R. Hegedus, Donald J. Hirst, Anthony T. Eng
-
Patent number: 5418280Abstract: A sealant or mastic composition comprises a dispersion of a finely divided particulate solid in a silicone resin formulation which contains a dispersant containing at least one group of the formula--(O--A--CO).sub.n --.The dispersant may be derived from a hydroxycarboxylic acid and preferably has a --COOH end group. The dispersant modifies the shear properties of the sealant.Type: GrantFiled: August 25, 1989Date of Patent: May 23, 1995Assignee: Imperial Chemical Industries PLCInventor: Kevin L. Birkett
-
Patent number: 5416170Abstract: A conductive polymeric composite with an improved electrical activation density obtained by compounding a ferrocene derivative used as a dopant with a polypyrrole of a conductive polymer and a method for preparing the same. The conductive composite can be produced by use of a chemical method or an electrochemical method. In the case of using the chemical method, pyrrole or its derivative is dissolved in a solution containing a ferrocene derivative, together with one or mixture of ferric trichloride, ammonium persulfate and copper chloride-aluminum chloride. In the case of using the electrochemical method, a solution, in which pyrrole or its derivative is dissolved together with ferrocene derivative, is used, as an electrolytic solution, alone or together with a solution in which an electrolyte of inorganic salt such as ammonium salt, lithium perchloric acid and tetraalkylammonium perchloric acid is dissolved.Type: GrantFiled: May 24, 1993Date of Patent: May 16, 1995Assignee: Agency of Defense DevelopmentInventors: Suh B. Rhee, Myong H. Lee, Chang J. Lee, Yong K. Kang
-
Patent number: 5403880Abstract: A corrosion-resistant polyurethane coating for application directly to a face as a self-priming topcoat comprising major amount of a polyurethane binder and minor amount of a combination of pigments consisting essentially of an aluminum phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent.Type: GrantFiled: March 7, 1994Date of Patent: April 4, 1995Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles R. Hegedus, Donald J. Hirst, Anthony T. Eng
-
Patent number: 5397502Abstract: The heat resistance of polyester liquid crystalline polymers containing repeat units in selected ratios derived from hydroquinone, 4,4'-biphenol, terephthalic acid, 4-hydroxybenzoic acid, and one or both of 4,4'-bibenzoic acid and 2,6-naphthalene dicarboxylic acid is improved by the addition thereto of 15 to 3000 ppm of an alkali metal or 50 to 3000 ppm magnesium or calcium.Type: GrantFiled: June 10, 1993Date of Patent: March 14, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Marion G. Waggoner, Michael R. Samuels, David F. Adcock
-
Patent number: 5391603Abstract: A composition of matter comprising:A) from 25 to 90 parts by weight of a syndiotactic, vinylaromatic thermoplastic resin,B) from 1 to 50 parts by weight of a rubbery, impact absorbing domain forming polymer,C) from 0.1 to 30 parts by weight of a nucleator for the syndiotactic, vinylaromatic thermoplastic resin,D) from 0 to 90 parts by weight of an mineral, glass, ceramic, polymeric or carbon reinforcing agent, andE) from 0 to 90 parts by weight of one or more polyarylene ethers or polar group modified polyarylene ethers.Type: GrantFiled: April 21, 1993Date of Patent: February 21, 1995Assignee: The Dow Chemical CompanyInventors: Thomas E. Wessel, Bruce P. Thill, Yi-Bin Huang
-
Patent number: 5367010Abstract: An adhesive composition containing a chlorinated ethylene/vinyl acetate copolymer and at least one of a phenolic resin and an aromatic nitroso compound as an adhesion-promoting additive. The chlorinated ethylene/vinyl acetate copolymer can be prepared without the utilization of environmentally hazardous chlorinated solvents and provides for adhesive compositions which exhibit excellent adhesion and resistance to adverse environmental conditions.Type: GrantFiled: March 22, 1993Date of Patent: November 22, 1994Assignee: Lord CorporationInventors: Nicholas J. Gervase, Louie G. Manino
-
Patent number: 5362782Abstract: Polypropylene impact copolymer compositions containing a nucleating agent demonstrate not only good low temperature properties, including impact strength, but also resistance to stress whitening when the numerical ratio of the intrinsic viscosity of the copolymer rubber phase to the intrinsic viscosity of the homopolymer phase is near unity and ethylene contents of the copolymer phase are in the range of 38% to 60% by weight. The impact copolymer compositions are useful in the production of molded and extruded articles, shaped containers, and films having good clarity.Type: GrantFiled: June 9, 1993Date of Patent: November 8, 1994Assignee: Shell Oil CompanyInventors: James D. McCullough, Jr., Harold K. Ficker
-
Patent number: 5356972Abstract: Hydroxyl group-containing triglyceride oils are effective nucleating agents for poly(ethylene terephthalate) and provide improved crystallization properties. The hydroxyl group-containing triglyceride oil may be combined with a conventional organic acid metal salt nucleating agent. By covalently bonding the hydroxyl group-containing triglyceride oil with a metal carboxylate, improved crystallization properties are obtained.Type: GrantFiled: July 29, 1992Date of Patent: October 18, 1994Assignees: Istituto Guido Donegani S.p.A., Enichem S.p.A.Inventors: Leslie H. Sperling, Leonard W. Barrett
-
Patent number: 5344861Abstract: A chlorosulfonated polyethylene polymer composition is disclosed, comprising a chlorosulfonated polyethylene polymer having incorporated therein (a) from 0.1 to 20 parts by weight of a metal salt of an organic acid, (b) from 0.1 to 10 parts by weight of a phenylamine and/or a phenylenediamine, (c) from 1 to 30 parts by weight of an acid acceptor, and (d) from 0.1 to 10 parts by weight of a vulcanizing agent, per 100 parts by weight of the chlorosulfonated polyethylene polymer. The composition provides a vulcanized product excellent in ozone resistance as well as mechanical strength.Type: GrantFiled: April 2, 1993Date of Patent: September 6, 1994Assignee: Tosoh CorporationInventors: Hideyoshi Nakamura, Katsumi Sando
-
Patent number: 5342868Abstract: The crystalline synthetic resin composition of the present invention comprises 100 parts by weight of a crystalline synthetic resin compounded with (a) 0.01 to 5 parts by weight of at least one of alkali-metal carboxylates, alkali metal .beta.-diketonates and alkali metal salts of .beta.-ketoacetic esters and (b) 0.01 to 5 parts by weight of at least one of basic polyvalent metal salts of cyclic organophosphoric esters of the following general formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sub.2 and R.sub.3 each represent a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, M represents a group III or IV metal atom of the periodic table, and X represents HO--when M represents a group III metal atom of the periodic table and X represents 0.dbd. or (HO).sub.2 --when M represents a group IV metal atom of the periodic table. The compositions can be used for packaging materials, and coated molded articles.Type: GrantFiled: March 4, 1993Date of Patent: August 30, 1994Assignee: Asahi Denka Kogyo Kabushiki KaishaInventors: Ryoji Kimura, Tetuo Tuboi, Kazunori Nishikawa
-
Patent number: 5322869Abstract: Styrene-based resin composition containing as main components (A) 100 parts by weight of a styrene-based polymer having mainly a syndiotactic configuration and (B) 0.01 to 25 parts by weight of one or more nucleating agents selected from the group consisting of (1) metal salts of organic acids having an average particle diameter of not more than 50 .mu.m, (2) inorganic compounds having an average particle diameter of not more than 50 .mu.m, (3) organophosphorus compounds having an average particle diameter of not more than 50 .mu.m, and (4) metal salts of ionic hydrocarbon copolymer, and a process for producing styrene-based resin moldings by molding the above styrene-based resin composition at a temperature between room temperature and 200.degree. C. The resin composition of the present invention is suitable for injection molding and extrusion molding, and provides moldings which are of high crystallinity and are excellent in heat resistance, solvent resistance, chemical resistance and so forth.Type: GrantFiled: December 18, 1991Date of Patent: June 21, 1994Assignee: Idemitsu Kosan Co., Ltd.Inventors: Komei Yamasaki, Takashi Sumitomo, Toshikazu Ijitsu, Hiroshi Yamada, Toshihiro Furusawa
-
Patent number: 5310775Abstract: This invention relates to a composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc and lays bentonite, montmorillonite, hectorite and derivatives thereof.Type: GrantFiled: July 20, 1992Date of Patent: May 10, 1994Assignee: AlliedSignal Inc.Inventors: John P. Sibilia, Yash P. Khanna, Anthony J. Signorelli, Dean A. Roberts
-
Patent number: 5308903Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of a molybdate-modified zinc phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant agent and up to about 50 parts by weight of at least one organic solvent.Type: GrantFiled: May 14, 1993Date of Patent: May 3, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles R. Hegedus, Donald J. Hirst, Anthony T. Eng
-
Patent number: 5306746Abstract: The present invention relates to a resin composition which selectively absorbs light of the wavelength band in the vicinity of wavelength 580 nm, as well as to the optical products to be formed from this resin composition. The beads possessing light selective function are formed from a transparent polymer which contains a neodymium compound: these beads are then dispersed in a transparent resin composition. Comparing to the case when the neodymium compound is directly dispersed in the resin composition, a large amount of neodymium compound can be added to the resin composition without decreasing the mechanical and thermal properties of the resin composition.Type: GrantFiled: March 10, 1992Date of Patent: April 26, 1994Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kozo Ida, Tetsuya Suda