Patents Examined by Thomas Hamilton, III
  • Patent number: 5459172
    Abstract: The present invention is directed to flexible polyurethane foams useful as seat cushioning material for vehicles, aircraft, furniture and the like. The polyurethane foams are characterized by improved wet compression set properties, improved firmness, resilience and elongation. The foams are made by a process which comprises reacting a polyol having a hydroxyl equivalent of from 800-10,000, a glycerin derivative having oxyethylene groups thereon but characterized by having a significant number of unreacted secondary hydroxyl groups of glycerin, (c) water and (d) an organic polyisocyanate.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: October 17, 1995
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Motonao Kaku, Hidefumi Ohta, Futoshi Kitatani, Kozaburo Nagata
  • Patent number: 5457164
    Abstract: A fire retardant polymeric resin is disclosed. The resin comprises a polymer having grafted thereto a fire retardant effective amount of a monomer composition selected from among salts of acidic monomers, mixtures of salts of acidic monomers, and mixtures of acidic monomers and salts thereof. Related additives are also disclosed.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: October 10, 1995
    Assignee: Marquette University
    Inventor: Charles A. Wilkie
  • Patent number: 5457169
    Abstract: Molding materials are based on polyarylene ethers A having terminal anhydride groups and repeating units I ##STR1## in which t and q may each be an integer 0, 1, 2 or 3, T, Q and Z may each be a chemical bond or a group selected from --O--, --S--, --SO.sub.2 --, S.dbd.O, C.dbd.O, --N.dbd.N--, --R.sup.a C.dbd.CR.sup.b -- and --CR.sup.c R.sup.d --, with the proviso that at least one of the groups T, Q or Z is --SO.sub.2 -- or C.dbd.O, R.sup.a and R.sup.b are each hydrogen or C.sub.1 -C.sub.10 -alkyl, R.sup.c and R.sup.d are each hydrogen or a C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.10 -alkoxy or C.sub.6 -C.sub.18 -aryl group, where the abovementioned groups may each be substituted by fluorine and/or chlorine and Ar and Ar.sup.1 are each C.sub.6 -C.sub.18 -aryl which may have substituents selected from the group consisting of C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.18 -aryl, C.sub.1 -C.sub.10 -alkoxy and halogen, or random copolymers or block copolymers thereof.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 10, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Klaus Muehlbach, Wolfgang Eberle
  • Patent number: 5455312
    Abstract: The present invention relates to a process for the preparation of plastics containing thermoplastic polyurethanes and optionally other components comprising (a) melting and homogenizing a thermoplastic polyurethane in an extruder, and (b) adding an isocyanate to said extruder containing the melted and homogenized thermoplastic polyurethane.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: October 3, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Heidingsfeld, Willi Meister, Jurgen Winkler
  • Patent number: 5455292
    Abstract: The present invention provides a resin composition comprising:(A) at least one thermoplastic resin not having halogen selected from the group consisting of a polyphenylene ether resin, a polycarbonate resin, a polystyrene resin, a polyolefin resin, a polyamide resin and a thermoplastic elastomer; and(B) a phosphoric acid ester compound represented by general formula I: ##STR1## wherein Q.sub.1, Q.sub.2, Q.sub.3 and Q.sub.4 independently represent an alkyl group having 1 to 6 carbon atoms; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent a methyl group or a hydrogen atom; n represents an integer of 1 or more; n1 and n2 independently represent an integer of 0 to 2; and m1, m2, m3 and m4 independently represent an integer of 1 to 3.According to the present invention, a resin composition excellent in flame retardance can be obtained.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: October 3, 1995
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Junko Kakegawa, Shigeki Takayama
  • Patent number: 5449557
    Abstract: A compatible, single-phase, polyblend comprisingI) a polymer which is a polycarbonate, polyvinyl chloride, or polyvinylidene fluoride, andII) a copolymer comprising from 40 to 99.99 percent by weight ofA) a monomeric ester formed between acrylic acid or methacrylic acid and a C1-C10 alcohol, and from 0.01 to 60 percent by weight ofB) a monomer of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, Y is oxygen or -NR.sub.2 - where R.sub.2 is hydrogen or alkyl, and Z isi) a 2-hydroxyphenyl benzotriazole,ii) a 2-hydroxybenzophenone or 2-hydroxyacetophenone,iii) an alpha-cyano-beta,beta-diphenyl, andC) optional other monomers.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: September 12, 1995
    Assignee: Rohm GmbH
    Inventors: Ralf Liebler, Werner Ringenberg
  • Patent number: 5449721
    Abstract: Disclosed is a thermoplastic resin composition which comprises:(A) 10-90 parts by weight of a polyphenylene ether resin,(B) 90-10 parts by weight of a polyamide resin,(C) 1-100 parts by weight of a fluorocarbon resin,(D) 0-30 parts by weight of a compatibilizing agent, and(E) 0-100 parts by weight of a rubber-like material, amounts of (C), (D) and (E) being based on 100 parts by weight in total of (A) and (B).The invention provides a thermoplastic resin composition comprising a polyphenylene ether resin and a polyamide resin improved in heat resistance, impact resistance, and flowability, lowered in frictional coefficient and markedly improved in critical PV value by adding a fluorocarbon resin to a PPE/nylon alloy. Further provided is a method for producing a thermoplastic resin composition comprising a polyphenylene ether resin and a polyamide resin which is much improved in slidability.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: September 12, 1995
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Yasuro Suzuki, Yasuhito Ijichi
  • Patent number: 5443874
    Abstract: A hollow multi-layer molding made of a multi-layer laminate material, the multi-layer laminate material having: a polyethylene layer; a barrier layer made of a substance selected from the group consisting of polyamide resins, saponified derivatives of ethylene-vinyl acetate copolymers, thermoplastic polyesters, and a mixture of at least two of the polyamide resin, the saponified derivative and the thermoplastic polyesters; and an adhesive layer made of a modified polyolefin resin, the polyethylene layer and the barrier layer being laminated to each other with the adhesive layer sandwiched therebetween. The polyethylene layer is made of a high-molecular-weight polyethylene which is obtained by using a specific chrome catalyst and a reducing agent, and which has a high-load melt flow rate (at a temperature of 190.degree. C. under a load of 21.6 kg) of 1 to 10 g/10 min., and a density of not less than 0.935 g/cm.sup.3.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: August 22, 1995
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhisa Tachi, Takeshi Okamoto, Mikiko Muramatsu
  • Patent number: 5444123
    Abstract: Halogen-free flameproofed thermoplastic molding materials based on polyphenylene ethers and polystyrene containing, as essential components,A) from 5 to 92% by weight of one or more polyphenylene ethers,B) from 5 to 92% by weight of a vinylaromatic polymer andC) from 3 to 25% by weight of a flameproofing agent based onC1) from 20 to 100% by weight (based on the total amount of C) of a polymeric phosphorus compound which is obtained by polymerizing or copolymerizing one or more compounds of the following structure: ##STR1## where ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10 and R.sup.11 are each hydrogen, alkyl, cycloalkyl, aralkyl or aryl,R.sup.7, R.sup.8 and R.sup.9 are each alkylidene, cycloalkylidene, aralkylidene or arylidene,m, p, q, r, s, t, u and v are each 0 or 1,n is 0, 1 or 2,U is COO, O, S or NR.sup.9,V, W, X and Y are each O, S or NR.sup.9 andZ is O, S or NR.sup.10 R.sup.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 22, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Doris Zeltner, Norbert Niessner, Friedrich Seitz, Ranier Neumann, Stefan Seelert
  • Patent number: 5441808
    Abstract: Hot melt adhesive compositions combining the characteristics of thermoplastic hot melt adhesives and reactive adhesives can be prepared by blending a polyester polyether thermoplastic elastomer having the formula ##STR1## wherein Nu is a predominately cyclic nucleus and R.sub.1 is randomly selected from either a C.sub.2-6 alkylene or an amorphous polyether subunit comprising a polyoxyalkylene group with a polyisocyanate prepolymer. The resulting composition is flexible and may be used as an adhesive or as a sealant.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: August 15, 1995
    Assignee: H.B. Fuller Fuller Licensing & Financing Inc.
    Inventors: Gregory J. Anderson, John M. Zimmel
  • Patent number: 5438107
    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: September 16, 1993
    Date of Patent: August 1, 1995
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takao Doi, Noriko Itaya, Masami Yamashita
  • Patent number: 5436302
    Abstract: A blend of isocyanate-terminated polyurethane prepolymers is provided. The blend consists essentially of a first crystalline prepolymer based upon polyhexamethylene adipate and a second prepolymer based upon polytetramethylene ether glycol.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: July 25, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles W. Stobbie, IV, John C. Tangen, Lani S. Kangas
  • Patent number: 5434220
    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 10, 1994
    Date of Patent: July 18, 1995
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Masaji Yoshimura, Kazuharu Kanezaki, Takashi Satoh, Tomoyuki Nakata, Minoru Takiguchi
  • Patent number: 5434217
    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 functionalized polar ethylene copolymer, and a functionalized olefin polymer as a compatibilizing agent, all of which are chlorine-free.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: July 18, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Heinz H. Spelthann
  • Patent number: 5428091
    Abstract: A thermoplastic resin composition which comprises 100 parts by weight of a composition comprising 95-5 % by weight of at least one polyolefinresin (A) selected from homopolymers of ethylene or .alpha.-olefin or copolymers thereof and these homopolymers or copolymers modified with a polyfunctional compound (E) and/or an unsaturated monomer (L) and 5-95 % by weight of at least one polyphenylene-ether-resin (B) selected from polyphenylene ether, modified polyphenylene ether with the above (E) and/or (L) and a composition comprising the polyphenylene or modified polyphenylene ether and an aromatic vinyl polymer resin (M) and 0.001-10 parts by weight of a dinitrodiamine (D) of the following formula (I). ##STR1## (wherein X represents a divalent chain aliphatic group, a cyclic aliphatic group or an aromatic group which may contain a halogen or an oxygen atom, R.sup.1 represents a hydrogen atom, a chain aliphatic group, a cyclic aliphatic group or an aromatic group and when both of X and R.sup.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: June 27, 1995
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Hiroomi Abe, Takeshi Fujii, Masashi Yamamoto, Shinichi Yachigo, Hideo Nagasaki, Naoki Inui
  • Patent number: 5424360
    Abstract: A thermoplastic resin composition having a good balance among rigidity, impact strength and adhesion of coating is provided, which comprises:a total of 100 parts by weight of (a)-(c) wherein (a) is 1-60% by weight of a polyphenylene ether, (b) 0-60% by weight of an alkenyl aromatic resin excluding unhydrogenated alkenyl aromatic block copolymer of tile following component (e) and (c) 40-99% by weight of a polyamide,(d) 1-50 parts by weight of a polyolefin having a modulus of 10000 kg/cm2 or more at room temperature,(e) 1-50 parts by weight of an unhydrogenated alkenyl aromatic block copolymer, and(f) a compatibilizing agent in an amount necessary to improve compatibility of the above components (a) and (c), said (d)-(f) being every 100 parts by weight of (a)-(c), and wherein the thermoplastic resin composition is obtained by melt kneading firstly said (a), (d) and (f) and then secondly said (c) therewith.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: June 13, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Nagaoka, Hiroshi Hagimori, Takashi Sanada
  • Patent number: 5420200
    Abstract: The invention relates to a thermoplastic polymer composition comprising a polyphenylene oxide; a graft copolymer (A), comprising a copolymer of a vinyl-aromatic compound, a vinyl cyanide and optionally a third monomer and a rubber, whereby the rubber is grafted on the backbone to the copolymer; and a graft copolymer (B) having polystyrene chains grafted on a copolymer backbone which contains units of a vinyl-aromatic compound and units of an .alpha.,.beta.-unsaturated dicarboxylic anhydride. The presence of graft copolymer (B) in the polymer composition causes a significant improvement of the notched impact resistance.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: May 30, 1995
    Inventors: Cornelis E. Koning, Reinoldus J. M. Borggreve
  • Patent number: 5419946
    Abstract: An adhesive composition containing a special internal mold release agent obtained from tri-, di-, or mono-alkyl phosphoric ester, said alkyl moiety having 6 to 18 carbon atoms, and an amine in addition to major components of an epoxy resin, acrylonitrile-butadiene rubber, an alkylphenol resin, and an inorganic filler is suitable for producing printed wiring boards by an additive process excellent in adhesiveness to plated copper.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: May 30, 1995
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shin Takanezawa, Teturou Irino, Yuuji Toshaka, Takashi Kagaya
  • 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
  • Patent number: 5418287
    Abstract: A resin composition comprising the following component A, component B and component C:component A of polyphenylene ether resin; component B of crystalline polyolefin resin; and component C of graft modified copolymer in which an unsaturated copolymer consisting of ethylene or at least one of .alpha.-olefins having 3 to 12 carbon atoms and at least one of chain nonconjugated dienes of the following general formula is modified with a monomer capable of radical polymerization such as styrene. ##STR1## This resin composition has an improved impact strength, keeping heat resistance and mechanical strength characteristic of polyphenylene ether resins, and molding properties and resistance to organic solvents characteristic of polyolefin resins.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: May 23, 1995
    Assignee: Mitsubishi Petrochemical Company, Ltd.
    Inventors: Tomohiko Tanaka, Hiroshi Nakano, Hiroyuki Satoh, Shiroh Gotoh