Patents Examined by Thomas Hamilton, III
  • Mixture of isocyanate-terminated polyurethane prepolymers having good adhesion
    Patent number: 5418310
    Abstract: A blend of isocyanate-terminated polyurethane prepolymers comprising: (a) a first prepolymer which comprises the reaction product of an at least essentially semicrystalline hydroxy-functional material and a polyisocyanate; (b) a second prepolymer which comprises the reaction product of a poly(tetramethylene glycol)ether and a polyisocyanate; and (c) a third prepolymer which comprises the reaction product of an essentially amorphous hydroxy-functional material and a polyisocyanate. The blend may also include a fourth prepolymer which comprises the reaction product of a slightly branched hydroxy-functional material and a polyisocyanate.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: May 23, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Lani S. Kangas
  • Heat resistant electrically conductive plastic sheet and container
    Patent number: 5415906
    Abstract: A heat resistant electrically conductive plastic sheet comprising (1) a base material layer A made of a base material resin composition comprising from 32 to 94 wt % of a polyphenylene ether resin (hereinafter referred to simply as PPE), from 4 to 61 wt % of a high-impact polystyrene resin (hereinafter referred to simply as HI) and from 2 to 17 wt % of a polyolefin resin and (2) an electrically conductive layer B made of an electrically conductive resin composition comprising from 10 to 85 wt % of PPE, from 8 to 82 wt % of HI and from 3 to 33 wt % of an electrical conductivity-imparting material, integrally laminated on one side or both sides of the base material layer A by coextrusion.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: May 16, 1995
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeshi Miyakawa, Mikio Shimizu, Masami Inoue, Tadaaki Hirooka
  • Thermoplastic resin compositions of polyphenylene ether, crystalline thermoplastic resins and mutual compatibilizers having a defined morphology
    Patent number: 5405902
    Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B), an average particle diameter in said dispersing phase having of 0.01-10.mu..
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: April 11, 1995
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Kagaoka, Takayuki Okada
  • Thermoplastic resin compositions of polyphenylene ether, polyphenylene sulfide and a mutual compatibilizer
    Patent number: 5403888
    Abstract: A novel thermoplastic resin composition excellent in heat resistance, mechanical properties and processability is provided which comprises a composition containing (A) a dispersing phase of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue and at least one of them is a hydrogen atom and (B) a crystalline thermoplastic resin matrix phase and (C) a mutual compatibilizer compatible with (A) and/or (B) , an average particle diameter in said dispersing phase having of 0.01-10 .mu..
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: April 4, 1995
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
  • Blow molding compositions of polyamide and cyanate components
    Patent number: 5403896
    Abstract: New process for blowing molding polyamide compositions, employing a composition comprising a polyamide and one or more cyanate components, specifically cross-linking cyanates which form a triazine upon curing.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: April 4, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Yash P. Khanna, Rakesh Kumar, John P. Sibilia
  • Thermoplastic compositions containing polyphenylene ether resin and characterized by improved elongation and flexibility employing a blend of multiblock copolymers
    Patent number: 5397822
    Abstract: A thermoplastic resin composition having in admixture a polyphenylene ether resin and an elastomeric block copolymer wherein the block copolymer has in admixture a triblock copolymer A-B-A' and a diblock copolymer A-B with A and A' being polymerized vinyl aromatic hydrocarbon blocks such as styrene and B being an ethylene-alkylene block such as ethylene-butylene. The composition of this invention can also include other additives such as siloxane fluids, flame retardants, polyolefins, and phosphates, as well as fillers, etc. Also included in this invention is the process of preparing such compositions and articles of manufacture prepared therefrom, such as electrical conductor articles or formed articles. The compositions of this invention provide improved flexibility and elongation.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: March 14, 1995
    Assignee: General Electric Company
    Inventor: Gim F. Lee, Jr.
  • Flexible polar thermoplastic polyolefin compositions
    Patent number: 5395881
    Abstract: Polar thermoplastic polyolefin blends are provided which are flexible and are particularly useful in replacing polyvinyl chloride sheeting used as liners, folders, etc.. The blends comprise, in general, a non-polar thermoplastic polyolefin, a polar ethylene copolymer, an epoxy functionalized polar ethylene copolymer, and a carboxylic acid or anhydride functionalized olefin polymer, all of which are chlorine-free.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: March 7, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Heinz H. Spelthann
  • Thermoplastic resin compositions containing polyphenylene ethers and polyesters
    Patent number: 5395883
    Abstract: Improved thermoplastic compositions are disclosed, comprising a polyphenylene ether resin capped with an epoxytriazine compound; a thermoplastic polyester; and a radial block copolymer which itself comprises at least about 60% by weight of a polymerized vinyl aromatic material, and about 5%-40% of a polymerized conjugated diene monomer.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: March 7, 1995
    Assignee: General Electric Company
    Inventors: John B. Yates, III, Alexandros Hasson
  • EVOH/polypropylene gas-impermeable polymer alloys
    Patent number: 5393832
    Abstract: Polymer alloys that can facilely be shaped into gas barrier, crack-resistant packaging materials, e.g., by thermoforming, include an ethylene-vinyl alcohol copolymer matrix, a polypropylene disperse phase and a phase-compatibilizing amount of an .alpha.-monoolefin graft copolymer.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: February 28, 1995
    Assignee: Atochem
    Inventors: Jean-Claude Moulies, Patrick Borg, Pierre Nogues
  • Thermoplastic olefin copolymers and blends prepared therefrom
    Patent number: 5393833
    Abstract: Novel thermoplastic olefin copolymers and blends comprising the same are prepared from precursor functionalized olefin polymers and functionalized addition polymers. Additionally, the thermoplastic olefin copolymers comprise ester linkages and sulfide linkages.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: February 28, 1995
    Assignee: General Electric Company
    Inventors: Farid F. Khouri, Gregory J. Stoddard
  • Resin composition containing low-molecular weight compounds which form a polyester urethane hybrid network
    Patent number: 5393829
    Abstract: The invention relates to a resin composition containing low-molecular compounds which form a polyester urethane hybrid network. The resin composition contains a first component consisting of a condensation product of at least one diol and at least one unsaturated dicarboxylic acid material, a second component containing an ethylenically unsaturated monomer capable of copolymerizing with the first component, and a third component consisting of a polyisocyanate. The first component substantially consists of a diester compound of 2 diol molecules and 1 molecule of a dicarboxylic acid material, which dicarboxylic acid material consists of at least 75% of .alpha.-, .beta.-unsaturated dicarboxylic acid.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 28, 1995
    Assignee: Stamicarbon B.V.
    Inventors: Ronald L. Verleg, Adrianus J. De Koning
  • Blends of polyphenylene ether and modified polyesters
    Patent number: 5391639
    Abstract: Thermoplastic blend compositions comprise polyphenylene ethers blended with modified polyesters. The modified polyesters comprise linear polyesters, such as polyalkylene terephthalate, modified with hydroxy- or carboxy-terminated polystyrene. The blends have good solvent resistance, heat distortion temperature, and gloss.Methods for preparing blends of polyester and polyphenylene ether are also described. They involve modifying the polyester with hydroxy- or carboxy-terminated polystyrene, prior to blending with the polyphenylene ether.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: February 21, 1995
    Assignee: General Electric Company
    Inventors: John C. Falk, Klementina Khait
  • Styrenic resin composition
    Patent number: 5391611
    Abstract: There is disclosed a styrenic resin composition comprising (A) a styrenic polymer having high degree of syndiotactic configuration and (B) a rubbery polymer having a product of weight-average molecular weight and styrenic monomer unit content being at least 30,000.The above composition is excellent in release properties, impact resistance, heat resistance, mechanical strength and flame retardancy.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: February 21, 1995
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Michio Funayama, Shinichi Miura, Masami Mihara, Keiji Takamatsu
  • Blends of polyphenylphene ether, polyamide, elastomeric substances and needle shaped titanium oxide treated with organopolysiloxanes
    Patent number: 5389714
    Abstract: Resin compositions comprising (A) polyethylene ether resins, (B) polyamide resins, (C) elastomeric substances, and (D) needle-shaped titanium oxide are disclosed. The disclosed resins exhibit an excellent balance of stiffness and impact resistance, low linear coefficient of expansion, and good heat resistance, oil resistance, forming processability and molding surface appearance.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: February 14, 1995
    Assignee: GE Plastics, Japan, Ltd.
    Inventors: Takashi Ohtomo, Hiromi Ishida, Hidekazu Kabaya, Hiroshi Kubo
  • Thermoplastic resin composition
    Patent number: 5385976
    Abstract: A thermoplastic resin composition comprising a modified polyphenylene ether to which an amino group-containing monomer such as amino styrene is grafted and a propylene polymer which is modified with a compound having a functional group reactive with an amino group in a molecule. This composition is excellent in heat resistance, chemical resistance, impact resistance and appearance and used to produce a part which is required to have strength and heat resistance such as an automobile part.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: January 31, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Motonobu Furuta, Hiroomi Abe, Takeshi Fujii, Masashi Yamamoto
  • Compatibilized compositions of polyphenylene ether, polyester resins and polycarbonate-polyester copolymers
    Patent number: 5384359
    Abstract: In accordance with the invention, there are provided thermoplastic compositions comprising an admixture of:(a) polyphenylene ether resin;(b) polyester resin; and(c) a compatibilizer for (a) and (b) comprised of polycarbonate-polyester copolymer in an amount sufficient to compatiblize components (a) and (b).In preferred embodiments, the polycarbonate-polyester copolymer is present in an amount of at least 2%, preferably at least about 5% and more preferably from about 5% to about 25% by weight based on 100% by weight of (a) and (b). In addition, preferably, the polycarbonate component of said polycarbonate-polyester copolymer is present in an amount of at least 1%, preferably at least about 3%, and more preferably from about 3% to about 20% by weight based on 100% by weight of (a) and (b).
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: January 24, 1995
    Assignee: General Electric Company
    Inventors: Gregory R. Chambers, Gary F. Smith, John B. Yates, III
  • Thermally stable blends of pre-extruded polyphenylene ether, diene based rubber and dialkylamines
    Patent number: 5384360
    Abstract: There are provided melt extruded blends of polyphenylene ether and diene based rubber containing an effective amount of a dialkylamine which has been found effective as a stabilizer for the diene based rubber. Additional diene based rubber stability can be achieved by using preextruded polyphenylene ether. The resulting melt extruded blends have been found to enjoy increased resistance to change in impact values when recycled in the molded state.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: January 24, 1995
    Assignee: General Electric Company
    Inventors: William D. Richards, James E. Pickett
  • Compositions of polyphenylene ether, polyester, linear tapered block copolymers and further elastomeric materials
    Patent number: 5384363
    Abstract: Compositions containing a thermoplastic polyester resin, a polyphenylene ether resin capped with an epoxytriazine compound, linear, tapered, block copolymers and an elastomeric material.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: January 24, 1995
    Assignee: General Electric Company
    Inventor: John B. Yates, III
  • Polyphenylene ether resin composition
    Patent number: 5382627
    Abstract: A polyphenylene ether resin composition containing (A) 100 parts by weight of a polyphenylene-ether-base resin composed of 100-60 wt. % of a polyphenylene ether resin and 0-40 wt. % of a polystyrene resin and (B) 1-40 parts by weight of a dicarboxylic acid ester copolymer obtained from a vinyl monomer and an unsaturated dicarboxylic acid ester as copolymerizable components. The dicarboxylic acid ester copolymer has a weight average molecular weight not greater than 60,000. The polyphenylene ether resin composition, if necessary, can further comprise (C) 1-40 parts by weight of conductive carbon or an A-B-A' type or A-B'-B" type block copolymer elastomer. Owing to its excellent mechanical properties, heat resistance and moldability, the resin composition is useful in the fields of automotive vehicles, home electronic or electric appliances and industrial parts or components.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: January 17, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Masaji Yoshimura, Kazuharu Kanezaki, Takashi Satoh, Tomoyuki Nakata, Minoru Takiguchi
  • Functionalized olefin polymers and polyphenylene ether compositions containing them
    Patent number: 5380796
    Abstract: Graft copolymers are prepared by the reaction of an olefin polymer such as polyethylene or polypropylene with an ethylenically unsaturated t-alkylcarbamate compound. Said graft copolymers are capable of reaction with functionalized polyphenylene ethers to produce compatibilized polyphenylene ether-olefin polymer compositions.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: January 10, 1995
    Assignee: General Electric Company
    Inventors: John R. Campbell, James R. Presley