Patents by Inventor Hideshi Kawachi
Hideshi Kawachi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7196130Abstract: A thermoplastic resin composition (Y) characterized by comprising (A) 20 to 64.9 wt % one or more ethylene copolymers comprising an ethylene/?-olefin copolymer, (B) 35 to 70 wt % metal hydroxide, and (C) 0.1 to 30 wt % grafted ethylene polymer. The resin composition has excellent flame retardancy and has satisfactory pliability/flexibility and excellent tensile properties. It is suitable for use as an insulating material or sheath for electric wires. Also provided are: a polymer composition (Z) having high flame retardancy, characterized by comprising relative to (AA) 100 parts by weight of a polymer such as a thermoplastic polymer or thermosetting polymer, in the ratio of (BB) 50 to 250 parts by weight of a metal hydroxide, (E) 0.1 to 40 parts by weight of a triazine ring containing compound, and (F) 0.1 to 40 parts by weight of a polyhydric alcohol; and a molded object obtained from the polymer composition. These are suitable for use as an insulating material or sheath for electric wires.Type: GrantFiled: June 3, 2003Date of Patent: March 27, 2007Assignee: Mitsui Chemicals, Inc.Inventors: Hiroshi Uehara, Tomohiko Kimura, Satoru Moriya, Masayoshi Yamaguchi, Hideshi Kawachi
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Publication number: 20060154998Abstract: A composition which can provide a foamed product (non-crosslinked or crosslinked foamed product) having low specific gravity and low compression set (CS), excelling in the tensile strength properties and the tear strength properties, as well as in impact resilience, and exhibiting a less decrease in hardness at high temperatures; a foamed product produced therefrom; and a laminate produced using the foamed product are provided. A resin composition for a foamed product comprising 5 to 95 pars by weight of an ethylene/?-olefin copolymer (A1), 5 to 95 parts by weight of a styrene block copolymer (B), and based on 100 parts by weight of the total of components (A1) and (B), 0 to 1900 parts by weight of an ethylene/polar monomer copolymer (A2).Type: ApplicationFiled: June 17, 2004Publication date: July 13, 2006Applicant: MITSUI CHEMICALS, INC.Inventors: Eiji Shiba, Hideshi Kawachi, Masahiro Yamaguchi
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Publication number: 20050131129Abstract: A thermoplastic resin composition (Y) characterized by comprising (A) 20 to 64.9 wt % one or more ethylene copolymers comprising an ethylene/?-olefin copolymer, (B) 35 to 70 wt % metal hydroxide, and (C) 0.1 to 30 wt % grafted ethylene polymer. The resin composition has excellent flame retardancy and has satisfactory pliability/flexibility and excellent tensile properties. It is suitable for use as an insulating material or sheath for electric wires. Also provided are: a polymer composition (Z) having high flame retardancy, characterized by comprising relative to (AA) 100 parts by weight of a polymer such as a thermoplastic polymer or thermosetting polymer, in the ratio of (BB) 50 to 250 parts by weight of a metal hydroxide, (E) 0.1 to 40 parts by weight of a triazine ring containing compound, and (F) 0.1 to 40 parts by weight of a polyhydric alcohol; and a molded object obtained from the polymer composition. These are suitable for use as an insulating material or sheath for electric wires.Type: ApplicationFiled: June 3, 2003Publication date: June 16, 2005Applicant: Mitsui Chemicals, Inc.Inventors: Hiroshi Uehara, Tomohiko Kimura, Satoru Moriya, Masayoshi Yamaguchi, Hideshi Kawachi
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Patent number: 6777491Abstract: A multilayered article and vessel, which are superior in the properties, such as shock resistance, rigidity, an ability to barrier against gasoline and interlayer adhesion, and are permissible of being recycled for reuse, comprising a base layer (A1) comprising a polyetylene resin (a1) having an MFR (ASTM D 1238, 190° C., 2160 g) of 0.001 to 0.5 g/10 min. and a density of 0.945 to 0.980 g/cm3, an adhesive layer (A2) comprising a modified etylene/&agr;-olefin copolymer (a2) which is modified by having grafted thereon an unsaturated carboxylic acid or its derivative and has a density of 0.900 to 0.940 and a barriering layer (B) comprising an ethylene/vinyl alcohol copolymer (b), wherein the Izod impact strength (with notch) (ASTM D 256, −40° C.Type: GrantFiled: August 11, 2000Date of Patent: August 17, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Hideshi Kawachi, Hiromi Shigemoto, Yuichiro Terashi
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Patent number: 6656601Abstract: The adhesive ethylene copolymer composition of the invention comprises a specific long-chain branched ethylene/&agr;-olefin copolymer (or this copolymer and its graft-modified product) and a tackifier (or a specific ethylene/vinyl acetate copolymer), and has specific density, MFR, crystallinity and graft quantity. The composition containing the tackifier can form a layer having good adhesive force to polystyrene resins, ABS resin, polyacrylonitrile resins and ethylene/vinyl acetate copolymer saponified resins even in an atmosphere of high temperatures. The composition containing the ethylene/vinyl acetate copolymer can form a layer having good adhesive force to polyester resins, polycarbonate resins, polyvinylidene chloride resins and ethylene/vinyl acetate saponified resins even in an atmosphere of high temperatures. The other adhesive ethylene copolymer composition of the invention comprises a blend of a graft-modified linear ethylene/&agr;-olefin copolymer and an olefin elastomer.Type: GrantFiled: October 10, 2000Date of Patent: December 2, 2003Assignee: Mitsui Chemicals Inc.Inventors: Hideshi Kawachi, Yuji Sawada, Haruhiko Tanaka
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Patent number: 6455170Abstract: The modified polypropylene composition of the invention comprises (A) modified polypropylene having been partially or wholly graft modified with an unsaturated carboxylic acid or its derivative, (B) an amorphous or low-crystalline ethylene/&agr;-olefin copolymer having a specific MFR and a specific density and (C) a styrene elastomer, in a specific ratio. The component (A) is a graft modification product of a propylene homopolymer and/or a graft modification product of a propylene/&agr;-olefin random copolymer. The laminate of the invention comprises a composition layer comprising the modified polypropylene composition and a resin layer provided on one or both surfaces of the composition layer.Type: GrantFiled: March 21, 2001Date of Patent: September 24, 2002Assignee: Mitsui Chemicals, Inc.Inventors: Shigeyuki Yasui, Yuji Sawada, Hideshi Kawachi
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Patent number: 6214426Abstract: A multilayered article and vessel, which are superior in the properties, such as shock resistance, rigidity, an ability to barrier against gasoline and interlayer adhesion, and are permissible of being recycled for reuse, comprising a base layer (A1) comprising a polyetylene resin (a1) having an MFR (ASTM D 1238, 190° C., 2160 g) of 0.001 to 0.5 g/10 min. and a density of 0.945 to 0.980 g/cm3, an adhesive layer (A2) comprising a modified etylene/&agr;-olefin copolymer (a2) which is modified by having grafted thereon an unsaturated carboxylic acid or its derivative and has a density of 0.900 to 0.940 and a barriering layer (B) comprising an ethylene/vinyl alcohol copolymer (b), wherein the Izod impact strength (with notch) (ASTM D 256, −40° C.Type: GrantFiled: April 23, 1998Date of Patent: April 10, 2001Assignee: Mitsui Chemicals, Inc.Inventors: Hideshi Kawachi, Hiromi Shigemoto, Yuichiro Terashi
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Patent number: 6210765Abstract: Disclosed is a specific adhesive polyethylene composition comprising [1] a modified ethylene/&agr;-olefin copolymer resin or elastomer obtained by modifying a specific ethylene/&agr;-olefin copolymer resin or elastomer, each of which comprises ethylene and an &agr;-olefin of 3 to 20 carbon atoms, with an unsaturated carboxylic acid or anhydride, ester, amide, imide or metallic salt derivative of a unsaturated carboxylic acid thereof, [2] an unmodified ethylene/&agr;-olefin copolymer resin and/or an unmodified ethylene/&agr;-olefin copolymer elastomer and [3] a tackifier. Also disclosed is a multi-layer laminated film of 3 or more layers in which a layer of the above composition is interposed between an ethylene polymer layer and either a polyamide resin layer, an ethylene/vinyl alcohol copolymer layer or a layer of a mixture of polyamide resin and ethylene/vinyl alcohol copolymer.Type: GrantFiled: January 9, 1997Date of Patent: April 3, 2001Assignee: Mitsui Petrochemical Industrie LtdInventors: Haruhiko Tanaka, Hideshi Kawachi, Masahiro Inaba, Yuji Sawada
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Patent number: 6183863Abstract: An adhesive ethylene copolymer resin composition blend of a modified ethylene/&agr;-olefin copolymer obtained by graft-modifying an unmodified linear ethylene/&agr;-olefin copolymer comprising ethylene and an a-olefin of 3 to 20 carbon atoms with an unsaturated carboxylic acid or its derivative, or the unmodified ethylene/&agr;-olefin copolymer and the modified ethylene/&agr;-olefin copolymer and an olefin elastomer (F) The linear ethylene/&agr;-olefin copolymer being prepared by the use of an olefin polymerization catalyst including a Group IV transition metal compound (a) containing a ligand having cyclopentadienyl skeleton and an organoaluminum oxy-compound (b). The adhesive ethylene copolymer resin composition can be used as a layer to form a laminate with a layer of a polar material or a layer of a metal. The polar material layer can be a layer of an ethylene/vinyl alcohol copolymer, a layer of a polyamide or a layer of a polyester.Type: GrantFiled: May 12, 1997Date of Patent: February 6, 2001Assignee: Mitsui Chemical IncInventors: Hideshi Kawachi, Yuji Sawada, Haruhiko Tanaka
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Patent number: 6165573Abstract: The present invention provides a multi-layer laminate consisting essentially of:(A) a layer formed from an ethylene/cycloolefin random copolymer which is a copolymer of ethylene and a cycloolefin represented by a specific formula (e.g., tetracyclododecene), or a layer formed from a cycloolefin resin which is a graft modified product of the ethylene/cycloolefin random copolymer, or a layer formed from a cycloolefin resin composition comprising the cycloolefin resin and a polyolefin, and(B) a barrier layer consisting essentially of ethylene/vinyl alcohol copolymer, polyvinylidene chloride, or polyacrylonitrile, with the barrier layer having an oxygen permeability, as measured at 23.degree. C. and RH of 0%, of not more than 10 cc(STP).mm/m.sup.2.24 hr.atm; said multi-layer laminate having a moisture permeability of not more than 0.2 g.mm/m.sup.2.24 hr.atm and an oxygen permeability of not more than 5 cc(STP).mm/m.sup.2.24 hr.atm. This multi-layer laminate has excellent gas-barrier properties and high rigidity.Type: GrantFiled: December 31, 1996Date of Patent: December 26, 2000Assignee: Mitsui Petrochemical Industries LTDInventors: Toshiyuki Hirose, Shigetoshi Nishijima, Yohzoh Yamamoto, Hideshi Kawachi
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Patent number: 6015625Abstract: An adhesive resin composition contains at least a partially or wholly graft-modified .alpha.-olefin/aromatic vinyl compound random copolymer having a graft quantity of an unsaturated carboxylic acid or its derivative ranging from 0.01 to 30% by weight. A laminate comprises (I) a polyester resin layer or a polycarbonate layer, (II) an adhesive layer formed from the above-mentioned adhesive resin composition and (III) a saponified olefin/vinyl acetate copolymer layer. The adhesive resin composition is free from lowering of adhesive strength even when contacted with, for example, hot water. The laminate has excellent gas barrier properties and is capable of being subjected to retorting treatment.Type: GrantFiled: September 24, 1998Date of Patent: January 18, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Kenichi Morizono, Keiji Okada, Hiromi Shigemoto, Hideshi Kawachi
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Patent number: 5725715Abstract: A squeezable tubular container (a) which is formed from a composition containing a polyethylene having a density of 0.900 to 0.975 g/cm.sup.3 and an ethylene/.alpha.-olefin copolymer having a density smaller than 0.900 g/cm.sup.3, (b) has a crosslinking caused under irradiation with electron beam, and (c) is sterilizable at a high temperature or is heat-sealable or ultrasonically sealable; and a process for the production thereof.Type: GrantFiled: July 2, 1996Date of Patent: March 10, 1998Assignees: Mitsui Petrochemical Industries, Ltd,, Yoshino Kogyosho Co., Ltd., Japan Atomic Energy Research InstituteInventors: Keizo Makuuchi, Fumio Yoshii, Yasuo Futami, Masanobu Ishiyama, Gen Miyamoto, Hideo Kushida, Sei Nakajima, Takahiro Kurihara, Ryoji Sugawara, Hideshi Kawachi, Mikio Nakagawa
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Patent number: 5718982Abstract: A multilayer laminate film comprising (A) a first layer comprising a propylene polymer and oriented in at least one direction, (B) a second layer comprising a propylene copolymer having a melting point lower than the melting point of the propylene polymer of the first layer, (C) a third layer comprising a polymer composition comprising a graft modified olefin polymer in which an unsaturated carboxylic acid or a derivative thereof is grafted, and (D) a fourth layer comprising an ethylene vinyl alcohol copolymer, these four layers being laminated in the above order. The above multilayer laminate exhibits excellent interlaminar adhesion and has excellent heat resistance.Type: GrantFiled: July 26, 1996Date of Patent: February 17, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Hideshi Kawachi, Haruhiko Tanaka
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Patent number: 5695838Abstract: Disclosed are (1) an adhesive polypropylene resin composition comprising (a) 50 to 90 parts by weight of a modified polypropylene or a composition containing said modified polypropylene, said modified polypropylene being graft-modified with at least one monomer selected from the group consisting of an unsaturated carboxylic acid from the group consisting of an unsaturated carboxylic acid and a derivative thereof and (b) 10 to 50 parts by weight of a modified polyolefin other than the modified polypropylene or the composition (a), said modified polyolefin being grafted with at least one monomer selected from the group consisting of an unsaturated carboxylic acid and a derivative thereof, and (2) a multi layer laminate body comprising (i) a layer of a polyolefin (ii) a layer of the above-said adhesive polypropylene resin composition and (iii) a layer of a polyamide resin and/or an ethylene/vinyl alcohol copolymer, said layers being laminated in the order of (i), (ii) and (iii).Type: GrantFiled: August 15, 1996Date of Patent: December 9, 1997Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Haruhiko Tanaka, Hideshi Kawachi
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Patent number: 5565160Abstract: A squeezable tubular container (a) which is formed from a composition containing a polyethylene having a density of 0.900 to 0.975 g/cm.sup.3 and an ethylene/.alpha.-olefin copolymer having a density smaller than 0.900 g/cm.sup.3, (b) has a crosslinking caused under irradiation with electron beam, and (c) is sterilizable at a high temperature or is heat-sealable or ultrasonically sealable; and a process for the production thereof.Type: GrantFiled: May 30, 1995Date of Patent: October 15, 1996Assignees: Mitsui Petrochemical Industries, Ltd., Yoshino Kogyosho Co., Ltd., Japan Atomic Energy Research InstituteInventors: Keizo Makuuchi, Fumio Yoshii, Yasuo Futami, Masanobu Ishiyama, Gen Miyamoto, Hideo Kushida, Sei Nakajima, Takahiro Kurihara, Ryoji Sugawara, Hideshi Kawachi, Mikio Nakagawa
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Patent number: 5532030Abstract: A polyolefin multilayer laminate in which a first layer (A) made of a cycloolefin-based resin, such as an ethylene/cycloolefin random copolymer resulting from copolymerization of ethylene and a cycloolefin represented by the formula (1) given below, or a cycloolefin-based resin blend and a second layer (B) made of an olefin (co)polymer or a composition containing it are laminated. This laminate can be used as a packaging material which is superior in the interlayer adhesion, shapability, moistureproof property, transparency, flexibility, easiness of hand-cutting, heat-sealability and dead-hold property. Formula (1) comprises ##STR1## in which n and q are 0 or 1, m is 0 or any positive integer, R.sup.1 -R.sup.18 and R.sup.a and R.sup.b denote each H, a halogen atom or a hydrocarbon group, wherein R.sup.15 -R.sup.18 may form, by combining with each other, a monocyclic or polycyclic ring, which may have double bond(s), and wherein R.sup.15 -R.sup.16 may have terminal-located alkylidene group.Type: GrantFiled: May 26, 1995Date of Patent: July 2, 1996Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshiyuki Hirose, Shigetoshi Nishijima, Yohzoh Yamamoto, Hideshi Kawachi, Michio Tsugawa
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Patent number: 5198494Abstract: An adhesive resin composition comprising 1 to 30 parts by weight of a graft copolymerized polypropylene grafted partially or totally with 0.01 to 15 weight % of an unsaturated carboxylic acid or its derivatives and 100 parts by weight of a soft polymer, wherein the soft polymer is a styrene elastomer.Type: GrantFiled: May 23, 1991Date of Patent: March 30, 1993Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Hideshi Kawachi, Masaharu Mito, Mikio Nakagawa
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Patent number: 4981948Abstract: According to the present invention, a zinc-containing solid catalyst prepared by contacting zinc oxide with an organic dicarboxylic acid in the presence of or in the absence of an organic solvent under a mechanical pulverization treatment is provided. The catalyst is in a good pulverized state and exhibits a high catalytic activity for polymerization of carbon dioxide with an epoxide to obtain a polyalkylene carbonate.Type: GrantFiled: August 3, 1989Date of Patent: January 1, 1991Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Hideshi Kawachi, Shuji Minami, John N. Armor, Andrzej Rokicki, Beatrice K. Stein