Patents Examined by Thomas Hamilton, III
  • Patent number: 5300548
    Abstract: Disclosed herein are a novel graft copolymer comprising a stock copolymer (A) of at least one monomer selected from esters of unsaturated carboxylic acids and vinyl esters (a), ethylene (b) and carbon monoxide (c), and a polyamide oligomer having a primary amino group at one end of its molecule (B) grafted on said stock copolymer, and a process for the preparation thereof. The proposed graft copolymer, when used as an adhesive, in particular for adhesion of polyvinyl chloride, exhibits excellent heat resistance and adhesion properties.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: April 5, 1994
    Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.
    Inventors: Hideo Akimoto, Shiro Narasaki, Reiji Miyamoto
  • Patent number: 5300571
    Abstract: The invention relates to a hardenable composition containingA) compounds having at least two activated double bonds (I) based on .alpha.,.beta.-unsaturated carbonyl compounds, .alpha.,.beta.-unsaturated carboxylic acid esters or .alpha.,.beta.-unsaturated nitrile groups,B) compounds containing either at least one primary amino group which is blocked by an aldehyde or ketone having not more than 10 C atoms or at least 2 groups which can be hydrolyzed to NH groups, andC) customary additives, if appropriate catalysts, if appropriate pigments and organic solvents.Either component A or component B or components A and B are based on a branched soluble acrylate copolymer P, which is obtainable by copolymerization ofa) 5 to 30% by weight of monomers having at least two ethylenically unsaturated polymerizable double bonds,b) 5 to 60% by weight of monomers having a functional group andc) 5 to 90% by weight of other ethylenically unsaturated monomers,the sum of a, b and c being 100% by weight.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: April 5, 1994
    Assignee: BASF Lacke+Farben Aktiengesellschaft
    Inventors: Werner A. Jung, Peter Hoffmann
  • Patent number: 5298558
    Abstract: The present invention relates to electrostatic dissipative impact modified polymeric compositions comprising an effective amount of a chain extended block copolymer, polyvinyl halide and no more than 10 weight parts of a polymeric impact modifier per 100 weight parts of polyvinyl chloride. The chain extended block copolymer is formed from reacting a di-functional polyether with a chain extender which is a condensate selected from the group consisting of polyundecanolactam, polydodecanolactam, poly(11-aminoundecanoic acid) and (12-aminododecanoic acid).
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: March 29, 1994
    Assignee: The Geon Company
    Inventors: Francis R. Sullivan, Elaine A. Mertzel, Craig L. Shoemaker
  • Patent number: 5294667
    Abstract: In order to prepare thermoplastic molding materials from pulverulent polyphenylene ethers and aromatic vinyl polymers by melt extrusion, the pulverulent polyphenylene ether is first of all compacted and/or sintered under pressure and if necessary with the addition of heat, preferably under a pressure corresponding to a nip pressure of from 1 to 100 kN/cm, to form a porous compact. The compact is then fed in the form of agglomerates having a particle size of from about 0.5 mm to about 20 mm into an extruder or the like, mixed with the aromatic vinyl polymer and if desired further components, and melted. In this way the proportion of the fines in the polyphenylene ether is considerably reduced, with the result that there is virtually no further danger of dust explosions. Further advantages include improved ease of metering and reduced electrostatic charge of the agglomerates. The extruded molding materials have good mechanical properties and also high thermal stability.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: March 15, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Weiss, Axel Gottschalk, Klaus Muehlbach, Carola Hedtmann-Rein, Robert Heinz
  • Patent number: 5290863
    Abstract: There are disclosed thermoplastic resin compositions with improved impact strength and other physical properties, specifically compatibilized compositions comprising polyphenylene ethers and thermoplastic polyesters, with the compatibilization being effected through the use of polystyrene-polycarbonate copolymer.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: March 1, 1994
    Assignee: General Electric Company
    Inventors: Sterling B. Brown, Edward J. Fewkes
  • Patent number: 5290898
    Abstract: A condensed resin dispersion having fine particles of a condensed resin dispersed stably in a polyether polyol (c), the condensed resin being a reaction product of an aldehyde and a compound condensable with the aldehyde, or of their precondensate, wherein the fine particles of the condensed resin are fine condensed resin particles formed by the reaction and precipitation conducted in an isocyanate-modified polyether (b) obtained by reacting an organic polyisocyanate to a polyether (a) having at least one active hydrogen group reactive with an isocyanate group, or to such a polyether (a) and a low molecular weight active hydrogen-containing compound having at least one active hydrogen group, and having substantially no free isocyanate group.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 1, 1994
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takao Doi, Noriko Itaya, Masami Yamashita
  • Patent number: 5288812
    Abstract: Polyphenylene ethers may show the property that their molecular weight increases considerably upon extrusion. This increase of the molecular weight leads to less good flow properties. It has been found that the addition of a conjugated, non-aromatic diene compound or of a dienophilic compound suppresses the increase of the molecular weight under extrusion.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: February 22, 1994
    Assignee: General Electric Company
    Inventors: Jan Bussink, Roelof van der Meer
  • Patent number: 5286790
    Abstract: Acrylate or methacrylate polymers, or copolymers of acrylates and/or methacrylates with other vinyl monomers, are blended in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polycarbonate, polyester, polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: February 15, 1994
    Assignee: The Dow Chemical Company
    Inventor: Michael K. Laughner
  • Patent number: 5286793
    Abstract: Polymer compositions containing a polyphenylene etherpolyolefin copolymer obtained by melt mixing an ethylene/(alkyl)acrylic acid copolymer with a polyphenylene ether or an ester end-capped polyphenylene ether. The compositions are used in many commercial applications requiring high temperature resistance including formation of films, fibers and molded articles with excellent surface appearance.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: February 15, 1994
    Assignees: Istituto Guido Donegani, Enichem America, Inc.
    Inventors: Steve G. cottis, Kavilipalayam M. Natarajan
  • Patent number: 5284914
    Abstract: A thermoplastic polyester resin composition characterized by comprising30-70% by weight of a polyester resin (A) constituted mainly of a polyalkylene terephthalate,5-35% by weight of a graft polymer (B) obtained by graft-polymerizing at least one selected from the group consisting of an aromatic vinyl monomer and a methacrylate monomer in the presence of a rubbery polymer, and10-45% by weight of a polyphenylene ether resin (C) andresulting from blending these polymers so that the content of said polyester resin (A) may be higher than that of said polyphenylene ether resin (C).
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: February 8, 1994
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yutaka Toyooka, Masafumi Hongo, Hideyuki Shigemitsu
  • Patent number: 5281667
    Abstract: Epoxy-functionalized polyphenylene ethers are prepared by melt blending a polyphenylene ether with glycidyl acrylate in the presence of a lubricant such as at least one hydrogenated poly-.alpha.-olefin. The blending reaction takes place at a temperature in the range of about 250.degree.-300.degree. C., and the amount of glycidyl acrylate employed is about 2.5-5.0% by weight based on polyphenylene ether. The products are characterized by a gel content of less than 5% by weight. They form copolymer-containing compositions having excellent properties upon melt blending with linear polyesters such as poly(butylene terephthalate).
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: January 25, 1994
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Robert J. Halley, John B. Yates, III
  • Patent number: 5274039
    Abstract: The present invention relates to a coating composition which contains a one- or two-component binder and, in addition, an adhesion promoter which is based on a chemically modified, amorphous polyolefin having an average molecular weight M.sub.w (weight average) in the range from 10,000 to 100,000 g/mol, a non-uniformity U.sub.n of 1.0 to 6.5, a chlorine content of about 2.5 to 50% by weight and a total content of nitrogen, oxygen, sulfur and silicon, in the form of chemically incorporated functional groups, of about 2.5 to 15.0% by weight.The present invention also relates to a process for coating plastic substrates with this coating composition and to the coated plastic substrates obtained in accordance with this process.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: December 28, 1993
    Assignees: Bayer Aktiengesellschaft, Miles Inc.
    Inventors: Kirkor Sirinyan, Reinhold Dederichs, John L. Williams
  • Patent number: 5270386
    Abstract: A blend of a vinyl aromatic copolymer, and a poly(phenylene ether) concentrate containing poly(phenylene ether), a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blend may optionally contain impact modifiers, thermoplastic molding materials including polyester, polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: December 14, 1993
    Assignee: The Dow Chemical Company
    Inventor: Michael K. Laughner
  • Patent number: 5270400
    Abstract: Linear block copolymers are disclosed. The polymers comprise a plurality of alternating polymeric blocks of amorphous copolymers of L-lactide and D-lactide with semicrystalline blocks of either L-lactide homopolymer or D-lactide homopolymer. The molecular weight can be built up by either of two techniques. The first technique is to use a chain extending agent such as a diacyl chloride or a diisocyanate to link a plurality of the preformed block copolymers. The second technique is to polymerize additional alternating amorphous and semicrystalline onto the original alternating block copolymers.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: December 14, 1993
    Inventor: Maria Spinu
  • Patent number: 5268403
    Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) a polystyrene resin, and(C) a graft copolymer prepared by graft-polymerizing one or more vinyl monomers onto a compound rubber having an average particle diameter of 0.08 to 0.6 .mu.m and a structure wherein 10 to 90% by weight of a polyorganosiloxane rubber component and 90 to 10% by weight of a polyalkyl (meth)acrylate rubber component are tangled with each other so as not to separate, the total amount of the polyorganosiloxane rubber component and the polyalkyl (meth)acrylate rubber component being 100% by weight of the compound rubber. This resin composition provides molded products superior in impact resistance, heat resistance, mechanical strength, and surface appearance and is superior in moldability and flow properties.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: December 7, 1993
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase
  • Patent number: 5266633
    Abstract: The invention relates to a mixture composed essentially of polyoxymethylene (component A), a rubber-elastic graft copolymer in which the particles have been formed from a rubber-elastic, single-phase core based on polydiene and a hard graft shell (component B) and, if appropriate, a polymeric third component (component C). The invention also relates to a three-component mixture of the components A, B' and C, the core, in the case of B', being preponderantly or entirely composed of poly(meth)acrylic acid ester or silicone rubber instead of polydiene.The shaped articles produced from these mixtures are particularly distinguished by good low-temperature impact strength.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: November 30, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karlheinz Burg, Harald Cherdron, Friedrich Kloos, Helmut Schlaf
  • Patent number: 5264526
    Abstract: Light-stabilized acrylonitrile polymer fiber and polyurethane elastomer fiber are made by incorporating a copolymer of 20-80 weight % of a benzophenone compound of the formula: ##STR1## wherein R is hydrogen or methyl and X is --O--, --OCH.sub.2 CH.sub.2 O-- or --OCH.sub.2 CH(OH)CH.sub.2 O--, and 80-20 weight % of an ethylenically unsaturated monomer with an acrylonitrile polymer or a polyurethane elastomer; and a dope of the polymer mixture in an organic solvent is wet-spun into a fiber.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: November 23, 1993
    Assignee: Ipposha Oil Industries Co., Ltd.
    Inventors: Kazuto Kashiwai, Michihira Endoh, Shinichi Kumagae
  • Patent number: 5264487
    Abstract: Resinous compositions are prepared by blending an ABS copolymer or similar addition polymer, a polyphenylene ether-polystyrene blend, and a copolymer of an olefin such as ethylene and an epoxy compound such as glycidyl methacrylate. The first two constituents may be scrap materials. The resulting compositions have high impact strength and other advantageous properties.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: November 23, 1993
    Assignee: General Electric Company
    Inventors: James J. Scobbo, Jr., Michael P. Laughner, Marinus E. J. Dekkers
  • Patent number: 5262477
    Abstract: The present invention relates to a polyphenylene ether copolymer and thermoplastic resin compositions thereof which are excellent in heat resistance, thermal stability, mechanical strength, moldability and solvent resistance.Particularly, the present invention relates to a polyphenylene ether-polyolefin copolymer formed by covalent bonding between a polyphenylene ether and a polyolefin, each of which has a specific melt viscosity. The copolymer is represented by the formula (1):P--Z.sub.1 --R.sub.1 --Z.sub.2 --Q (1)wherein P is a polyphenylene ether component, Q is a polyolefin component, and each of Z.sub.1 and Z.sub.2 is a connecting group such as imide group, amide group or the like and R.sub.1 is an alkylene group, an arylene group or a cycloalkylene group and a resin composition comprising said copolymer, a polyphenylene ether and a polyolefin.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: November 16, 1993
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kouji Kasai, Osamu Ishihara
  • Patent number: 5262481
    Abstract: Monocomponent thermoplastic adhesives that are spontaneously cross-linkable by moisture and modified tackifier resins and other modified components for use therein that are obtained by reacting the same with an excess of polyisocyanate, and more specifically with MDI. The thermoplastic adhesives formulated with these modified resins have good resistance to creep at temperatures as high as 160.degree. C.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: November 16, 1993
    Assignee: CECA, S.A.
    Inventor: Jammet Jean C.