Patents Examined by T. Mason
  • Patent number: 4931531
    Abstract: This invention relates to a novel polyimide which is high-temperature resistant and capable of being molded in a fused state. This invention also relates to a high-temperature adhesive using the polyimide.The polyimide consists essentially of recurring units of the formula: ##STR1## where R is a tetra-valent radical selected from the group consisting of an aliphatic radical having 2 or more carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and non-condensed polyaromatic radical wherein aromatic radicals are linked to one another directly or via a bridge member.The polyimide can be prepared by reacting bis[4-(4-aminophenoxy)phenoxy)phenyl] sulfone with a tetracarboxylic dianhydride in an organic solvent and imidizing the resultant polyamic acid.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: June 5, 1990
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Shoji Tamai, Masahiro Ohta, Saburo Kawashima, Katsuaki Iiyama, Hideaki Oikawa, Akihiro Yamaguchi
  • Patent number: 4908426
    Abstract: Polyphenylquinoxalines are prepared by the nucleophilic displacement reaction of di(hydroxyphenyl)quinoxaline monomers with activated aromatic dihalides or dinitro compounds. The reactions are carried out in polar aprotic solvents using alkali metal bases at elevated temperatures under nitrogen. The di(hydroxyphenyl)quinoxaline monomers are prepared either by reacting stoichiometric quantities of aromatic bis(o-diamines) with a hydroxybenzil or by reacting o-phenylenediamine with a dihydroxybenzil or bis(hydroxyphenylglyoxylyl)benzene.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: March 13, 1990
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. Hergenrother, John W. Connell
  • Patent number: 4906724
    Abstract: A high modulus polyester molded article is obtained by molding an aromatic polyester which comprises at least one structural unit selected from the following structural units (I) to (III), the structural units (II)+(III) being less than 10 mol % of the structural units (I)+(II)+(III), and which is capable of forming anisotropic melt: ##STR1## wherein X represents at least one group selected from ##STR2## Y represents at least one group selected from ##STR3## and Z represents at least one group selected from ##STR4##
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: March 6, 1990
    Assignee: Japan as represented by the Director General of Agency of Industrial Science and Technology
    Inventors: Toru Yamanaka, Toshihide Inoue, Noriaki Goto
  • Patent number: 4880865
    Abstract: Polymer compositions having attractive mechanical properties comprise linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and minor amounts, relative to the polymer, of glass fiber reinforcement and mica.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: November 14, 1989
    Assignee: Shell Oil Company
    Inventor: Eric R. George
  • Patent number: 4879358
    Abstract: A process for treating a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a fluorine to thereby affect the water vapor transmission rate through the polymer, as well as articles and laminar structures produced by that process.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: November 7, 1989
    Assignee: Shell Oil Company
    Inventor: John R. Kastelic
  • Patent number: 4874836
    Abstract: Disclosed herein are a thermoplastic wholly aromatic polyimide ester consisting essentially of structural units represented by the general formulas I, II, III, and IV: ##STR1## wherein X and Y are either --O-- or --CO-- and may be either identical with or different from each other, n is an integrer of 0 or 1, X group and imide group and imide group in unit II are present at para or meta position to each other, two carbonyl gorups in unit IV are present at para or meta position to each other, and each end of units I, II, III, and IV is bonded to another end trough ester bond, and wherein the polyimide ester has a melt viscosity of 1.0 to 1.0.times.10.sup.5 Pa.multidot.s measured at a shear stress of 0.025 MPa and a temperature of 300.degree. to 400.degree. C.; and a process for producing the thermoplastic wholly aromatic polyimide ester.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: October 17, 1989
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Makoto Wakabayashi, Kenichi Fujiwara, Hideo Hayashi
  • Patent number: 4873293
    Abstract: Partially hydrolyzed, poly(N-acyl alkylenimines), and novel nitrogen-substituted derivatives thereof, provide useful and improved personal care compositions and processes.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: October 10, 1989
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: George L. Brode, II, Frederick M. Merritt, II
  • Patent number: 4870133
    Abstract: Polymer blends comprising a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a tetrafluoroethylene containing polymer exhibit good melt strength.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: September 26, 1989
    Assignee: Shell Oil Company
    Inventors: Robert G. Lutz, William P. Gergen
  • Patent number: 4868061
    Abstract: This invention relates to new compounds of the formula: ##STR1## where each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 has zero to 10 C atoms, and no acetylenic unsaturation; each of R.sup.1, R.sup.2 and R.sup.3 is independently selected from H and hydrocarbyl; each of R.sup.4 and R.sup.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: September 19, 1989
    Assignee: The Standard Oil Company
    Inventors: Mark C. Cesa, James E. Rinz, Teodora T. Kopp
  • Patent number: 4868272
    Abstract: A molding material comprising an imide group-containing aromatic polyamide, obtained by polycondensation of(A) an aromatic diamine of the general formulaH.sub.2 N--Ar--O--Ar'--X--Ar'--O--Ar--NH.sub.2wherein Ar and Ar' are m- or p-phenylene groups and X is --SO.sub.2 -- or --CO--, with at least one aromatic dicarboxylic acid B) selected from the group consisting of(B1) a mixture comprising 40 to 100 mole % of an acid of the structure ##STR1## and 60 to 0 mole % of an acid of the structure ##STR2## in which n is 0-4 and R is selected from the group consisting of (a) an alkyl group having 1-6 carbon atoms,(b) an unsubstituted phenyl or an alkyl- or aryl substituted phenyl group,(c) an alkoxy group having 1-6 atoms,(d) a phenoxy group, in which the phenyl ring is unsubstituted or is alkyl- or aryl substituted, and(e) a halogen,(B2) an acid of the structure ##STR3## and (B3) a dicarboxylic acid of the formulaHO.sub.2 C--Ar--(A--Ar).sub.p --CO.sub.2 Hwherein Ar is m-phenylene or p-phenylene, A=--O--, --S--, --SO.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: September 19, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Juergen Finke, Martin Bartmann, Friedrich-Georg Schmidt
  • Patent number: 4866122
    Abstract: A composition comprising:(a) at least one linear alternating copolymer of carbon monoxide and an ethylenically unsaturated hydrocarbon; and(b) a vinyl alcohol polymer, as well as articles prepared therefrom and packaging materials prepared therefrom.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: September 12, 1989
    Assignee: Shell Oil Company
    Inventors: Leonard E. Gerlowski, John R. Kastelic, Robert G. Lutz
  • Patent number: 4866154
    Abstract: This invention relates to new aromatic polyesters based on substituted 4,4'-biphenyl dicarboxylic acids and substituted hydroquinones, to a process for their preparation from hydroquinone derivatives and terephthalic acid and to their use for the preparation of molecularly reinforced polymers.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: September 12, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Heitz, Hans-Werner Schmidt
  • Patent number: 4864010
    Abstract: A biscyclobutarene monomer is prepared comprising two cyclobutarene moieties bridged by a divalent radical having at least one benzoxazole linkage. A reactive biscyclobutarene oligomer is also prepared by reacting a cyclobutarene-carboxylic acid, a diaminodihydroxyarene, and either an aromatic diacid or an aromatic diacid chloride. The monomers and reactive oligomers can be polymerized to form polymers exhibiting outstanding thermooxidative stability at high temperatures for prolonged time periods.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: September 5, 1989
    Assignee: The Dow Chemical Company
    Inventors: Alan K. Schrock, William J. Harris, Norman L. Madison
  • Patent number: 4864009
    Abstract: A molding composition, comprising an aliphatic/aromatic copolyamide polymer having statistically distributed throughout the polymer:(A) from greater than 40 to less than 100 mole % aliphatic monomer units containing amino groups, carboxyl groups or mixtures thereof; and(B) up to 60 mole % of aromatic monomer units containing amino groups, carboxy groups or mixtures thereof, said aromatic monomer units containing at least one member selected from the group consisting of 4,4'-bis(4-aminophenoxy)diphenyl sulfone, 4,4'-bis(3-aminophenoxy)diphenyl sulfone, 4,4'-bis(4-aminophenoxy)benzophenone, and 4,4'-bis(3-aminophenoxy)benzophenone.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: September 5, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Juergen Finke, Wolfgang Neugebauer, Holger Koziel, Martin Bartmann
  • Patent number: 4861856
    Abstract: Disclosed is an improved process for the preparation of polyketone and poly(ketone-sulfone) polymers by the reaction of at least one dicarboxylic acid with certain aromatic compounds containing at least four benzene residues in the presence of a perfluoroalkylsulfonic acid and (1) an oxide of phosphorus and/or (2) a perhaloalkanoic anhydride.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: August 29, 1989
    Assignee: Eastman Kodak Company
    Inventors: W. Ronald Darnell, Winston J. Jackson, Jr.
  • Patent number: 4861882
    Abstract: Ethynyl terminated imidothioethers (ETIs) are prepared by the reaction of a dimercaptan, such as 4,4'-dimercaptodiphenyl ether, and an ethynyl containing maleimide, such as N-(3-ethynylphenyl)maleimide. Blends of thse ETIs and ethynyl terminated polymeric materials, such as ethynyl terminated sulfones and ethynyl terminated arylene ethers, are also prepared. These resin blends exhibit excellent processability, and the cured blends show excellent fracture toughness and solvent resistance, as well as excellent adhesive and composite properties.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: August 29, 1989
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. Hergenrother, John W. Connell, R. Gerald Bass
  • Patent number: 4857607
    Abstract: The invention relates to polycycloacetals of formula I ##STR1## wherein n is an integer from 1 to 500, x and y are each independently of the other 0 or 1, R.sup.1 is a carbon atom or a tetravalent hydrocarbon radical having a molecular weight not greater than 1000 and which can additionally contain ether oxygen atoms or oxygen atoms in hydroxyl, carbonyl or epoxy groups, and R.sup.2 is a tetravalent hydrocarbon radical derived from a dialdehyde or a diketone.The polycycloacetals can be used together with conventional hardeners and/or curing catalysts for epoxy resins for the fabrication of cross-linked (cured) products having good properties, especially having excellent fastness to solvents, light and weathering.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: August 15, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Jacques-Alain Cotting, Alfred Renner
  • Patent number: 4855397
    Abstract: Polyesteramide resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of(A) a dicarboxylic acid corresponding to the structure ##STR1## wherein X is --O--, --S-- or ##STR2## n.sub.1 is 0 or 1 and R.sub.1 is an aromatic structure containing 6 to 15 carbons, and(B) An aminoalcohol corresponding to the formula ##STR3## where n.sub.2 is 0 or 1 and R.sub.2 is an alphatic structure of 1 to 12 carbons.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: August 8, 1989
    Assignee: Eastman Kodak Company
    Inventors: Robert B. Barbee, Larry A. Minnick
  • Patent number: 4851482
    Abstract: A process for preparing a blend of a linear alternating polymer of carbon monoxide and an ethylenically unsaturated hydrocarbon and a polyurethane polymer, the novel composition, as well as articles prepared from the blend and the blend prepared by the novel process.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: July 25, 1989
    Assignee: Shell Oil Company
    Inventors: Richard L. Danforth, Dale L. Handlin, Jr., William P. Gergen, Robert G. Lutz
  • Patent number: 4851470
    Abstract: A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a lesser amount of a mineral filler.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: July 25, 1989
    Assignee: Shell Oil Company
    Inventor: Eric R. George