With Polycarboxylic Acid Or Derivative And A Polyol At Least One Of Which Is Saturated, A Condensate Or Solid Polymer Thereof; Or With Solid Polymer Derived From At Least One Polycarboxylic Acid Or Derivative And At Least One Polyol Wherein At Least One The Reactants Forming The Solid Polymer Is Saturated Patents (Class 525/165)
  • Patent number: 5187199
    Abstract: The clear coating composition includes (a) an acrylic resin having a number-average molecular weight of 2500-10000 and a hydroxyl number of 70-120, and containing 20-40 parts by weight of styrene and/or its derivative, based on 100 parts by weight of acrylic resin-constituting monomers (solid basis); (b) a polyester resin having a number-average molecular weight of 350-1500 and a hydroxyl number of 150-300; (c) a mixture of (i) an alkyl ether-substituted melamine resin containing 5 or more alkyl ether groups per each triazine ring; and (ii) a melamine resin containing 1.1-3 imino groups per each triazine ring, a weight ratio of the component (i) to the component (ii) being 8/2-5/5; (d) an acid catalyst blocked with an amine having a boiling point of 150.degree.-280.degree. C.; and (e) a blocked isocyanate, weight ratios of the components being (a)/(b)=100/0-60/40; and (c)/(e)=100/0-33/67.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: February 16, 1993
    Assignee: Nippon Paint Co., Ltd.
    Inventor: Nobuhisa Sudo
  • Patent number: 5149589
    Abstract: A thermoplastic elastomer composition of excellent fusion bond property, which is useful to produce a composite molded product having a molded part that is made of a synthetic resin material, for example, an engineering plastic material, which has excellent mechanical strength, and a molded part that is made of a high-elasticity thermoplastic elastomer. The thermoplastic elastomer composition comprises 100 parts by weight of a thermoplastic elastomer and 25 to 185 parts by weight of a thermoplastic polyester elastomer.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: September 22, 1992
    Assignee: Taisei Purasu Co., Ltd.
    Inventors: Masanori Naritomi, Noritaka Ogawa
  • Patent number: 5132368
    Abstract: The subject invention provides a composition having excellent extrusion characteristics comprising a difficulty-melt-processible polymer and 0.002-0.5 wt. % of one or more fluoropolymer process aids wherein the fluoropolymer has a fluorine to carbon ratio of at least 1:2, is capable of forming a die-coating film under the prevailing conditions of extrusion temperature and pressure, and contains an effective amount of polar functional polymer chain end groups, --W, wherein --W is selected from --COF, --SO.sub.2 F, --SO.sub.3 M, --OSO.sub.3 M, --COOR, and --COOM, wherein R is C.sub.1-3 alkyl and M is hydrogen, a metal cation, preferably an alkali or alkaline earth metal cation, or a quaternary ammonium cation.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: July 21, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George R. Chapman, Jr., Donnan E. Priester, Charles W. Stewart, Robert E. Tarney
  • Patent number: 5124434
    Abstract: A polyester is provided which facilitates the separation of blood into light and heavy phases via centrifugation in a blood collection vessel. The polyester is useful as a component of a partitioning composition formulated to have appropriate specific gravity to be positioned intermediate the light and heavy blood phases during centrifugation. A partitioning composition including a polyester of the invention provides a particular advantage in blood collection vessels used in therapeutic drug monitoring, due to the relatively low affinity between the polyester component of the composition and commonly monitored classes of drugs.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: June 23, 1992
    Assignee: Henkel Corporation
    Inventor: William L. O'Brien
  • Patent number: 5094806
    Abstract: A process of blow molding, and compositions useful in the process. The articles are blow molded from compositions formed from thermoplastic polymeric material, a fluorinated olefinic polymer or copolymer and, optionally, an elastomeric impact modifier.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: March 10, 1992
    Assignee: The Dow Chemical Company
    Inventor: Michael K. Laughner
  • Patent number: 5091477
    Abstract: Molding materials of high impact polystyrene (HIPS) and one or more further polymers as essential components contain, as a third or further compatibility-imparting component, a polymer or copolymer containing not less than 45% by weight of units of cyclohexyl (meth)acrylate.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: February 25, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Bueschl, Peter Klaerner
  • Patent number: 5089559
    Abstract: Fire retardant salts of organic-phosphorus acid compounds are produced by mixing and reacting an organic compound with an acidic salt-forming phosphorus compound to produce an organic-phosphorus acidic compound which is then reacted with a salt-forming basic compound. These fire retardant compounds are mixed with plastics to produce fire retardant plastics.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: February 18, 1992
    Inventor: David H. Blount
  • Patent number: 5077338
    Abstract: A method of preparing a fiber reinforced elastomer by forming fibers therein in-situ and an elastomer made thereby are provided. In the method, a fiber forming material, preferably a high performance polymer, is dissolved in a compatible solvent to form a solvent/polymer mixture, and the mixture is added to the elastomer during compounding or mixing. The polymer is quickly dispersed into the elastomer, and the solvent rapidly evaporates. The shear of the mixer causes elongation of the polymer into fibers. The fibers may also be oriented by the shear of the mixer.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: December 31, 1991
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: William C. T. Tung, Deborah A. Tung, Mellis M. Kelley, Douglas C. Callander, 1
  • Patent number: 5055529
    Abstract: A processing aid for a thermoplastic resin is disclosed, which is a two-stage polymer obtained by polymerizing (B) 5 to 50 parts by weight of a monomer or monomer mixture composed mainly of methyl methacrylate in the presence of (A) 50 to 95 parts by weight of a polymer comprising 100 to 50% by weight of units of a methacrylic acid ester other than methyl methacrylate and 0 to 50% by weight of units of other monomer copolymerizable with the methacrylic acid ester and having a reduced viscosity .eta.sp/C not larger than 2.0 dl/g, so that the total amount of the components (A) and (B) is 100 parts by weight and the reduced viscosity .eta.sp of the final polymer is not larger than 2.0 dl/g. A thermoplastic resin having the processing aid incorporated therein has an improved shaping processability, and a shaped article mode therefrom has good surface characteristics.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: October 8, 1991
    Assignee: Mitsubishi Rayon Company, Ltd.
    Inventors: Kazuo Kishida, Kiyokazu Kitai, Masahiro Kaneda, Kenji Okano
  • Patent number: 5045610
    Abstract: This invention relates to copolyestercarbonate polymers which are prepared with diaryl dicarboxylic acid compounds, particularly biphenyldicarboxylic acid compounds. Such copolyestercarbonate polymers show good physical properties including high glass transition temperatures and low ultraviolet radiation sensitivity. The thermoplastic copolymestercarbonates can be used to prepare films or molded articles or blended with other thermoplastic resins to give thermoplastic polymer blends for molding purposes.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: September 3, 1991
    Assignee: The Dow Chemical Company
    Inventors: Stephen E. Bales, Kenneth A. Burdett, Guo-Shuh J. Lee
  • Patent number: 5011878
    Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,4-butanediol. The copolyesters exhibit unusually high tensile strengths.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: April 30, 1991
    Assignee: Eastman Kodak Company
    Inventors: John C. Morris, Winston J. Jackson, Jr.
  • Patent number: 5011877
    Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,6-hexanediol. The copolyesters exhibit unusually high tensile strengths.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: April 30, 1991
    Assignee: Eastman Kodak Company
    Inventors: John C. Morris, Winston J. Jackson, Jr.
  • Patent number: 5008318
    Abstract: Novel composite resinous film comprising a continuous phase of at least one resin and a discontinuous phase of microdomains which are aggregates of particles of at least one insoluble resin and are 0.03 to 10 microns in size, is provided. The film can exhibit the most desirous properties of the respective, constituent resinous materials and are useful in various fields including the paint industry.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: April 16, 1991
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Keizou Ishii, Teruaki Kuwajima, Hiroshi Miwa, Akio Kashihara, Shinichi Ishikura
  • Patent number: 5001192
    Abstract: A polymeric polyblend composition comprising a vinylidene chloride interpolymer, polyvinylchloride, and a compatibilizing amount of a compatabilizing polymer, said polymers being miscible.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: March 19, 1991
    Assignee: The Dow Chemical Company
    Inventor: Yun C. Sun
  • Patent number: 4996250
    Abstract: The invention relates to water-dilutable, air-drying protective coating compositions based on a combination of select water-dilutable alkyd resins with aqueous polymer dispersions and maleinized oils or fatty acids. The products are used with or without pigments, extenders and/or paint adjuvants or additives, depending on the particular end application, as air-drying protective coating compositions for wood and metal substrates, particularly for brushing lacquers and wood varnishes.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: February 26, 1991
    Assignee: Vianova Kunstharz, A.G.
    Inventors: Rami-Raimund Awad, Gert Dworak, Bertram Zuckert, Walter Weger
  • Patent number: 4990424
    Abstract: A toner composition comprised of a blend of resin particles containing styrene polymers or polyesters, and components selected from the group consisting of a semicrystalline polyolefin and copolymers thereof with a melting point of from about 50.degree. C. to about 100.degree. C., and pigment particles.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: February 5, 1991
    Assignee: Xerox Corporation
    Inventors: John G. Van Dusen, Timothy J. Fuller, Suresh K. Ahuja
  • Patent number: 4981904
    Abstract: Stable spray-coatable, water base composition having about 2 percent solids, that dries into glittering film having plurality of reflective surfaces resistant to flaking, comprising: a blend of a surfactant free first solution comprising, butyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate, glacial methacrylic acid and styrene; a blend of a self-crosslinking second solution comprising, 2-ethylhexyl acrylate, butyl methacrylate, glacial methacrylic acid, styrene and at least one cross-linking polymer; a thickener gel; transparent polyethylene terephthalate chips on which a color imparting or reflective material has been vacuum deposited and cured fast by an epoxy resin and ammonia.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: January 1, 1991
    Inventor: Larry C. Fischer
  • Patent number: 4925913
    Abstract: A heat-resistant unsaturated polyester having a structure represented by the formula (I)--X--Y).sub.m (X--Z).sub.n (I)wherein X represents a structure (A): ##STR1## wherein R represents hydrogen or an alkyl group having 1 or 2 carbon atoms;Y represents a structure (B): --OC--CH.dbd.CH--CO--Z represents a structure: ##STR2## and m and n independently represent a repeating numbers;a mole ratio of Y/Z is 10/90 to 99/1; andthe polyester has an inherent viscosity (.eta. inh) of at least 0.4 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of dimethylformamide.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: May 15, 1990
    Assignees: Nippon Steel Corporation, Nippon Steel Chemical Co., Ltd.
    Inventors: Takero Teramoto, Kazuhiro Watanabe
  • Patent number: 4923930
    Abstract: This invention provides a curable resin obtained by polymerizing at least one of an alkoxysiloxane-containing vinyl monomer and a polysiloxane macromonomer with an oxirane-containing vinyl monomer in the presence of a polymerization initiator and a resin having in the molecule a carboxyl group and/or an alicyclic hydrocarbon ring having one or two hydrogen atoms bonded to at least one carbon atom forming the alicyclic hydrocarbon ring; and a resin composition curable at a low temperature comprising the curable resin as defined above and a chelate compound.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: May 8, 1990
    Assignee: Kansai Paint Company, Limited
    Inventors: Naozumi Iwasawa, Osamu Isozaki
  • Patent number: 4914156
    Abstract: A blow moldable composition of a polyether, an epoxide polymer, a source of catalytic cations, and a fibrillatable tetrafluoroethylene polymer.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: April 3, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: King L. Howe
  • Patent number: 4902771
    Abstract: An imido-modified unsaturated polyester resin composition comprising an imido-modified unsaturated polyester obtainable by reacting an animal or vegetable fat and oil or a fatty acid thereof, an imido alcohol obtainable from a primary amino-alcohol and a polybasic acid anhydride, a polyhydroxy alcohol, and a polybasic acid in such a manner that the imido alcohol is used in an amount of 10 to 60% equivalent amount based on the alcoholic components; and a polymeric monomer.In one of the preferred embodiments, the composition according to the present invention further contains an inorganic filler.According to the present invention, there can be provided resin composition in which the compatibility under heat deterioration when used in enamelled wires has been improved, while maintaining excellent electrical and mechanical properties.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: February 20, 1990
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Yasuo Sugawara, Yuuji Aimono, Hatuo Sugitani
  • Patent number: 4900788
    Abstract: A blow moldable composition of a polyether, an epoxide polymer, and a fibrillatable tetrafluoroethylene polymer.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: February 13, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Pallatheri M. Subramanian
  • Patent number: 4857576
    Abstract: A method for rendering a flammable polymer material flame-resistant, which comprises incorporating to the flammable polymer material a powder of a cross-linked aromatic polymer brominated to contain from 30 to 70% by weight of bromine.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: August 15, 1989
    Assignees: Mitsubishi Kasei Corporation, MANAC Incorporated
    Inventors: Hiromi Kochi, Kenji Fukunaga, Takaharu Itagaki, Tsuyoshi Ito
  • Patent number: 4845188
    Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding grade linear or unsaturated polyester or polycarbonate having reacted or copolymerized therein the residue of one or a mixture of methine reactants of the formula ##STR1## whereinR.sup.1 is an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;A is an unsubstituted or substituted 1,4-phenylene radical;R.sup.2 is hydrogen or an unsubstituted or substituted alkyl, alkenyl, cycloalkyl or aryl radical;R.sup.3 is cyano, ##STR2## or an unsubstituted or substituted carbamoyl, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, aryl or aromatic heterocyclic radicals. The methine residues are present in the polymer as an integral part of the polymer chain and absorb ultraviolet radiation in the range of about 250 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: July 4, 1989
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert, Clarence A. Coates, Jr.
  • Patent number: 4843124
    Abstract: A thermoplastic elastomer blend of 15-90 parts of a continuous matrix of a thermoplastic elastomeric copolyester having a melting point of 100.degree.-200.degree. C. and 10-85 parts of crosslinked polychloroprene present in the form of finely divided particles.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: June 27, 1989
    Assignee: E. I. Du Pont de Neumours and Company
    Inventor: James R. Wolfe, Jr.
  • Patent number: 4824898
    Abstract: A shaped article comprised of a tetrafluoroethylene polymer with a number average molecular weight of at least about 10.sup.6 which exhibits specific heat shrinking properties represented by an average maximum expansion ratio of from 2 to 10, a least maximum shrinkage ratio of 0.71 or less, an orientation release stress at 200.degree. C. of less than 5 Kg/cm.sup.2 and a shrinking starting temperature of at least 80.degree. C. The shaped article has excellent compression creep resistance, compression resistance, impact strength, dimensional stability, gas barrier property and tensile strength. Accordingly, it can be advantageously utilized as a sealant, a lining material, a bearing pad, a sliding pad, etc.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: April 25, 1989
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masayuki Sukigara, Yasushi Kaneko, Hiroshi Kataoka
  • Patent number: 4803241
    Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding grade linear or unsaturated polyester or polycarbonate having reacted or copolymerized therein the residue of one or a mixture of styrylbenzazole reactants of the formula: ##STR1## wherein A is the residue of a benzene ring of a benzoxazole, benzothiazole or benzionidazole radical; X is --O--, --S-- or --N(R.sup.2)--; Ph is a phenylene radical; and R.sup.1 is halogen or --Y--R.sup.2 in which Y is --O-- or --N(R.sup.2)-- and each R.sup.2 is hydrogen, alkenyl or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: February 7, 1989
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert, Robert D. Burpitt
  • Patent number: 4789706
    Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. Often less than 36 weight percent of the molecules of the composition having a molecular weight greater than 150 percent of the average molecular weight and less than 12 weight percent of the molecules of the composition having a molecular weight less than 50 percent of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: December 6, 1988
    Assignee: NL Chemicals, Inc.
    Inventor: Roy C. Williams
  • Patent number: 4785053
    Abstract: An optical resin material comprising at least two constituent units each having positive and negative main polarizability differences of at least 50.times.10.sup.-25 cm.sup.3 in terms of absolute values has small birefringence and good water absorbance, heat resistance and moldability.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: November 15, 1988
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Iko Ito, Shozaburo Imai, Michihisa Isobe
  • Patent number: 4746703
    Abstract: This invention relates to a biaxially or multi-axially oriented, heat set film, which has on its surface numerous unevenesses, which comprise indentations around a protrusion. The protrusions comprise crosslinked or hardened organic particles having an average particle size of from 0.01 to 5.0 microns and having a narrow particle size distribution. The film surface has a mean surface roughness value Ra of from 0.005 to 0.10 micron.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: May 24, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hermann Dallmann, Walter Seifried, Werner Schaefer, Siegfried Janocha, Harmut Hensel
  • Patent number: 4743655
    Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: May 10, 1988
    Assignee: NL Chemicals, Inc.
    Inventor: Roy C. Williams
  • Patent number: 4728698
    Abstract: Novel self-reinforced polymer composites of a base polymer with a melt processable liquid crystal polymer are prepared according to this invention. The base polymer is a flexible chain polymer, e.g. a conventional thermoplastic. Polycarbonate is a particularly suitable base polymer. The liquid crystal polymer is melt processable, that is, it has a melting point and exhibits anisotropic properties in the melt phase. Wholly aromatic copolyesters are particularly suitable. Mixing is carried out at a temperature at which both the base polymer and the liquid crystal are melt processable, i.e., at a temperature at which the base polymer flows readily and the liquid crystal polymer is above its melting point. The products of this invention comprise about 2 to 20 percent by weight of liquid crystal polymer, which is in the form of essentially unidirectionally oriented continuous fibers primarily in the range of about 1 to 10 micrometers in diameter, distributed in a matrix of the base polymer.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: March 1, 1988
    Assignee: University of Akron
    Inventors: Avraam Isayev, Michael J. Modic
  • Patent number: 4725651
    Abstract: A polymeric blend composition comprising a vinylidene chloride interpolymer and a thermoplastic copolyester resin, said polymers being miscible. The vinylidene chloride interpolymer is present in an amount of from about 1 to about 80 weight percent based on total polymeric blend composition weight. The thermoplastic copolyester resin is present in an amount of from 20 to about 99 weight percent based on total polymeric blend composition weight. The blends exhibit physical properties superior to those expected by the rule of mixtures.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: February 16, 1988
    Assignee: The Dow Chemical Company
    Inventor: Dan E. Ranck
  • Patent number: 4699949
    Abstract: Compounds of formula I or II ##STR1## in which n is 1 or 2, R.sup.1 is phenyl, substituted phenyl, alkyl, substituted alkyl, hydrogen, --OH or amino, R.sup.2 is hydrogen, R.sup.3 is hydrogen, alkyl, substituted alkyl, phenyl or substituted phenyl, R.sup.4 is alkyl, phenyl, substituted phenyl, alkylene or arylene, X is --O--, --S--, --CH.sub.2 -- and Y is a direct bond or --CH.sub.2 -- are latent hardening catalysts for acid curable resins. The catalysts are activated by heat and are used in heat-hardening high-solids industrial varnishes and for coil-coatings, can and wood varnishes.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: October 13, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Godwin Berner, Werner Rutsch
  • Patent number: 4666972
    Abstract: Polyalkylene terephthalates which contain a fluorinated polyolefin in addition to a polymer having a glass transition temperature of less than -30.degree. C., are very tough, exhibit good stability to thermal shaping and hardness, and have a high modulus of elasticity and improved stress/strain behavior.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: May 19, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Kohler, Christian Lindner, Dieter Rempel, Gunter Weber, Karl-Heinz Ott, Rudolph Binsack
  • Patent number: 4663393
    Abstract: Process for the manufacture of unsaturated polyester resins.Process for the manufacture of unsaturated polyester resins in two steps starting from polyols, orthophthalic anhydride and maleic anhydride.Production of resins exhibiting linear maturing with magnesia.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: May 5, 1987
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventors: Patrick Arlaud, Herve Bompis, Pierre Canard
  • Patent number: 4579905
    Abstract: A composition comprising an intimate thermoplastic admixture of at least two structurally dissimilar organic polymers, a delamination inhibiting effective amount of the first organic polymer covalent bond graft linked to the second organic polymer through a multifunctional graft linking agent of the insertion, electron deficient type the new admixtures are useful for the usual applications associated with the admixture properties.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: April 1, 1986
    Assignee: General Electric Company
    Inventor: Herman O. Krabbenhoft
  • Patent number: 4530974
    Abstract: Articles having reduced thrombogenicity when in contact with blood products containing albumin and methods of their use are provided. The articles comprise at the surface of blood contact a water insoluble polymeric substrate material having covalently attached thereon aliphatic extensions of 14 to 20 carbon units. When exposed to blood the aliphatic chain extensions provide a hydrophobic binding site for albumin. The articles when implemented with whole blood or blood products selectively enhance albumin affinity binding to the exclusion of other blood components, and subsequently minimize thrombus formation.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: July 23, 1985
    Assignee: Board of Regents, The University of Texas System
    Inventors: Mark S. Munro, Alfred J. Quattrone, Steven R. Ellsworth, Robert C. Eberhart
  • Patent number: 4489190
    Abstract: A polymer blend which is capable of exhibiting an anisotropic melt phase and the ability to form shaped articles having satisfactory mechanical properties is provided. The polymer blend comprises approximately 5 to approximately 75 percent by weight, based upon the total weight of the blend, of a polyalkylene terephthalate wherein the alkylene units contain 2 to 5 carbon atoms and approximately 25 to approximately 95 percent by weight, based upon the total weight of the blend, of a melt processable wholly aromatic polyester which is capable of forming an anisotropic melt phase apart from the blend.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: December 18, 1984
    Assignee: Celanese Corporation
    Inventor: Michael F. Froix
  • Patent number: 4440916
    Abstract: Particles of two different normally solid materials are caused to react by generating free radicals on the surfaces of at least one of the solids by mechanical working, suitably by comminution, at cryogenic temperatures. At least one of the solids is preferably a polymeric material while the other may be a different polymer, a catalyst, a lubricity enhancing material, a filler, a pigment or the like.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: April 3, 1984
    Assignee: General Technology Applications, Inc.
    Inventors: Paul F. Waters, Thomas T. Scambos
  • Patent number: 4438236
    Abstract: A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range over which the polymer can form an anisotropic melt overlaps the temperature range over which the melt-processable polymer may be melt processed. The melt viscosity of such compositions may be very much less than that of the melt-processable polymer in the absence of the anisotropic melt-forming polymer particularly at high shear rates, corresponding to those encountered during moulding and extrusion operations. On the other hand at low shear rates and particularly when the concentration of anisotropic melt-forming polymer does not exceed 5% by weight increases in melt viscosity are obtainable which are valuable in fabrication processes operated at low shear rate where retention of form stability is required.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: March 20, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventors: Frederic N. Cogswell, Brian P. Griffin, John B. Rose
  • Patent number: 4429078
    Abstract: Compositions containing a polymer of PTFE and a polymer capable of exhibiting an anisotropic melt characterized in that the compositions contain between 0.05 and 99.5% of PTFE and 0.5 to 99.95% by weight of the polymer capable of forming an anisotropic melt. The presence of a minor amount of the anisotropic melt-forming polymer, that is, from 0.5 to 50% by weight of the composition enables the processability of PTFE to be improved, even to the extent of providing an injection mouldable PTFE composition. Compositions containing 20 to 50% by weight of PTFE confer benefits on anisotropic melt-forming polymers, such as lubricity and greater versatility in fabrication operations. Concentration of 0.05 to 5.0% by weight of PTFE are particularly suitable for modifying the viscosity characteristics of the low melt viscosity anisotropic melt-forming polymers so that such anisotropic melt polymers are less subject to problems such as flashing and jetting during moulding.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: January 31, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventors: Frederic N. Cogswell, Martin S. Swerdlow
  • Patent number: 4427809
    Abstract: Thermoplastic moulding compositions of co-graft polymers which are obtained by the polymerization of vinyl monomers, in particular by the polymerization of unsaturated esters, in the presence of mixtures consisting of the following:1. elastomers having glass transition temperatures .ltoreq.0.degree. C.,2. polyesters, polyethers, polyesterurethanes, polyurethanes, polycarbonates or mixtures thereof, and optionally3. cellulose esters of aliphatic C.sub.1 -C.sub.5 carboxylic acids,and moulding compositions consisting of mixtures of these co-graft polymers with organic cellulose esters.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: January 24, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Alberts, Winfried Fischer, Christian Leuschke
  • Patent number: 4423191
    Abstract: A method for curing a resinous composition comprising an admixture of a thermosetting resin and dielectrically lossy particles is described wherein the lossy particles have a dielectric constant substantially the same as the dielectric constant of the resin. The method comprises subjecting said admixture to a high frequency alternating electric field for sufficient time to heat the lossy particles and initiate the chemical reaction to cure the resin. Also described are shaped articles of manufacture made by curing resinous compositions in accord with the described method. Such articles have enhanced mechanical properties due to the curing process.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: December 27, 1983
    Assignee: Massachusetts Institute of Technology
    Inventors: Richard E. Haven, Nam P. Suh
  • Patent number: 4417020
    Abstract: Compositions containing a polymer of PTFE and a polymer capable of exhibiting an anisotropic melt characterized in that the compositions contain between 0.05 and 99.5% of PTFE and 0.5 to 99.95% by weight of the polymer capable of forming an anisotropic melt. The presence of a minor amount of the anisotropic melt-forming polymer, that is, from 0.5 to 50% by weight of the composition enables the processability of PTFE to be improved, even to the extent of providing an injection mouldable PTFE composition. Compositions containing 20 to 50% by weight of PTFE confer benefits on anisotropic melt-forming polymers, such as lubricity and greater versatility in fabrication operations. Concentration of 0.05 to 5.0% by weight of PTFE are particularly suitable for modifying the viscosity characteristics of the low melt viscosity anisotropic melt-forming polymers so that such anisotropic melt polymers are less subject to problems such as flashing and jetting during moulding.
    Type: Grant
    Filed: November 3, 1981
    Date of Patent: November 22, 1983
    Assignee: Imperial Chemical Industries PLC
    Inventors: Derrick S. Bailey, Brian P. Griffin
  • Patent number: 4397989
    Abstract: The high solids coating composition contains at least 40% by weight of a binder of film-forming constituents in which the constituents are of(1) an acrylic polymer of styrene or methyl methacrylate or mixtures thereof, an alkyl acrylate or an alkyl methacrylate and a hydroxyl alkyl acrylate or methacrylate(2) a polyester polyol and(3) an alkylated melamine formaldehyde crosslinking agent and optionally, an acid catalyst;the composition is particularly useful as a primer or an exterior finish for automobiles, trucks, airplanes and can be used as an appliance finish and for coil coatings.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Paul L. Adesko
  • Patent number: 4373046
    Abstract: A flame-retardant and radiation-resistant polymer composition comprising a polymer and a halogenated acenaphthylene condensate having a structural unit of the formula (I) or (II): ##STR1## (wherein X is chlorine or bromine, n and n' are each an integer of 2 to 6, R is a substituent other than halogen, m and m' are each an integer of 0 to 4, n (or N')+m(or m').ltoreq.6, and when m or m' is 2 or more, each R may be the same or different) and a flame-retardant and radiation-resistant resin molded product prepared therefrom are herein disclosed.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: February 8, 1983
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Miyuki Hagiwara, Yousuke Morita
  • Patent number: 4365036
    Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.025-2 percent by weight of NaI in the form of a selected complex of sodium iodide (NaI) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O-- together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or block copolymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.m wherein x is an integer of no more than 5 and m is an integer ranging from 2, preferably from 200 to about 5,000. The amount of complex is such as to give 0.025-2 percent, preferably 1-2 percent by weight of NaI based on the weight of polyalkyleneterephthalate.
    Type: Grant
    Filed: December 15, 1981
    Date of Patent: December 21, 1982
    Assignee: Plastics Engineering Company
    Inventor: Chung J. Lee
  • Patent number: 4361676
    Abstract: Sag-resistant, pumpable compositions are described which comprise a liquid material dispersed throughout a cross-linked polymer matrix. The liquid material may be a polymerizable material or a polymer-containing material. The compositions of the invention have very broad utility, depending upon the particular ingredients present.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: November 30, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Jon H. Simpson
  • Patent number: 4361623
    Abstract: A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of coating on said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a cross-linking agent and a polyoxyalkylene compound having as a nucleus a nitrogen containing reactive hydrogen containing compound with a diol which is halogenated.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: November 30, 1982
    Assignee: BASF Wyandotte Corporation
    Inventors: David D. Newkirk, Robert B. Login, Basil Thir