Patents by Inventor Masanobu Masu
Masanobu Masu 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: 4877847Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin modified with a 1,2-substituted olefin compound having an acid anhydride group, the polyphenylene either resin before modification having structural units represented by the following ##STR1## wherein R.sup.1 represents a lower alkyl group having 1 to 3 carbon atoms, and R.sup.2 and R.sup.3, independently from each other, represent a hydrogen atom or a lower alkyl group having 1 to 3 carbon atoms, in the main chain, and(B) a polyamide resin having recurring units represented by the following formula (II)--R.sup.4 --NHCO--R.sup.5 --CONH-- (II)wherein R.sup.4 represents a xylylene group, and R.sup.5 represents a linear alkylene group having 4 to 10 carbon atoms.Type: GrantFiled: September 10, 1987Date of Patent: October 31, 1989Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masanobu Masu, Hiroshi Yoshioka, Kenzi Kouno, Isao Nomura, Kazuo Yamamiya
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Patent number: 4590239Abstract: A polyphenylene ether resin composition comprising:(a) a polyphenylene ether resin,(b) a polystyrene-type resin,(c) an A-B-A' type elastomeric block copolymer, wherein A and A' represent blocks resulting from polymerization of an aromatic vinyl compound, and B represents a block resulting from polymerization of a conjugated diene compound, and(d) an elastomeric stryene/butadiene random copolymer,which is suitable electroless plating. Molded articles formed by using the resin composition of this invention can be plated using conventional electroless plating processes for ABS resins.Type: GrantFiled: December 12, 1984Date of Patent: May 20, 1986Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Akikazu Amagai, Toshihiko Kobayashi
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Patent number: 4556685Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) a polystyrene resin,(C) an acrylonitrile/conjugated diene elastomeric copolymer,(D) a graft copolymer obtained by reacting butyl rubber and an unsaturated polyolefin in a bifunctional phenol as a reaction medium, and(E) an aromatic phosphate.Type: GrantFiled: October 10, 1984Date of Patent: December 3, 1985Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Toshihiko Kobayashi
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Patent number: 4503186Abstract: A curable resin composition comprising (a) a polyphenylene resin, (b) a maleimide compound and/or a cyanate ester compound and (c) at least one compound selected from the group consisting of compounds having one or more acryloyl, methacryloyl, acryloxy or methacryloxy groups is disclosed. The curable resin composition can give a cured resin having resistance to heat, solvent and moisture and adhering property.Type: GrantFiled: March 1, 1982Date of Patent: March 5, 1985Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga, Hidenori Kimpara
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Patent number: 4496695Abstract: A curable resin composition comprising:(a) a polyphenylene ether resin,(b) a maleimide component and/or a cyanate ester component, and(c) an epoxy compoundis disclosed. The cured resin composition can give a cured resin having resistance to heat, solvent and moisture, adhering property and electrical properties.Type: GrantFiled: February 24, 1982Date of Patent: January 29, 1985Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga
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Patent number: 4489186Abstract: A polyphenylene ether resin composition comprising(1) a polyphenylene ether resin,(2) an oxanilide represented by the following formula ##STR1## wherein R.sup.1 and R.sup.6 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 15 carbon atoms, R.sup.2 and R.sup.7 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, R.sup.3 and R.sup.8 are identical or different and each represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and R.sup.4 and R.sup.5 are identical or different and each represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a dialkylaminoalkyl group with the alkyl moiety having 1 to 6 carbon atoms,(3) an organic phosphite, and(4) a hindered phenolic antioxidant.Type: GrantFiled: July 5, 1983Date of Patent: December 18, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masao Okabe, Eiji Ukita
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Patent number: 4472546Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) at least one compound selected from the group consisting of 2-(o-hydroxyphenyl)benzotriazoles represented by the following formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkoxycarbonylalkyl group, an aryl group or an aralkyl group, and X represents a halogen atom,and 2-hydroxybenzophenones represented by the following formula (II) ##STR2## wherein R.sup.5 represents a hydrogen atom, a hydroxyl group or an alkoxy group, R.sup.6 represents a hydrogen atom or a hydroxyl group, R.sup.7 represents a hydrogen atom or a sulfonic acid group, and R.sup.8 represents a hydrogen atom, an alkyl group or an aromatic acyl group,(C) an organic phosphite, and(D) a sterically hindered phenol.Type: GrantFiled: July 5, 1983Date of Patent: September 18, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masao Okabe, Eiji Ukita
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Patent number: 4448931Abstract: A resin composition comprising a polyphenylene ether resin and a rubber-modified polystyrene resin, wherein at least 80% of the rubber particles based on the total number of rubber particles in the elastomeric phase of the rubber-modified polystyrene resin have a particle diameter in the range of 0.5 to 4 microns, and the elastomeric phase has a particle size distribution index, SDI, defined by the equation ##EQU1## wherein x is the diameter in microns of the particles, and n is the number of particles having a particle diameter of x microns, of not more than 1.9.Type: GrantFiled: April 16, 1982Date of Patent: May 15, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Akikazu Amagai
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Patent number: 4427814Abstract: A polyphenylene ether resin composition having improved heat stability and good color, said composition comprising a polyphenylene ether resin matrix, and dispersed therein, a diphosphonite of the formula ##STR1## wherein R.sub.1 groups are identical or different and each represents a linear or branched alkyl group having 1 to 10 carbon atoms.Type: GrantFiled: March 15, 1983Date of Patent: January 24, 1984Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masao Okabe, Yukio Sasaki, Kozo Ishiyama
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Patent number: 4389516Abstract: A curable polyphenylene ether resin composition comprising(a) a polyphenylene ether resin, and(b) at least one polyfunctional compound selected from the group consisting of polyfunctional maleimides having at least two maleimide groups or the prepolymer thereof, polyfunctional cyanate esters having at least two cyanate ester groups or the prepolymer thereof, and pre-copolymers of the polyfunctional maleimides and the polyfunctional cyanate esters.The cured resin composition has utility in rustproofing paints, electrical insulating varnishes, adhesives and molding material.Type: GrantFiled: March 23, 1981Date of Patent: June 21, 1983Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga
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Patent number: 4383066Abstract: A polyphenylene ether resin composition having improved heat stability, said composition comprising a polyphenylene ether resin matrix, and dispersed therein, a phosphonic acid or its derivative of the formula ##STR1## wherein R.sub.1 represents an unsubstituted or substituted phenyl or naphthyl group, or a linear or branched alkyl group with 1 to 18 carbon atoms, or a group of the following formula (a) ##STR2## R.sub.2 and R.sub.3 are identical or different and each represents hydrogen atom, a metal, an unsubstituted or substituted phenyl group, or an alkyl group with 1 to 10 carbon atoms; and R.sub.4 is a divalent hydrocarbon group with 2 to 10 carbon atoms.Type: GrantFiled: April 7, 1981Date of Patent: May 10, 1983Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masao Okabe, Kozo Ishiyama
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Patent number: 4341879Abstract: A polyphenylene ether resin composition having improved heat stability, said composition comprising a polymer matrix composed of a polyphenylene ether resin and a vinyl aromatic resin, and dispersed in the polymer matrix, at least one compound selected from the group consisting of(1). 2-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyanilino)-4,6-di-C.sub.5 -C.sub.15 -alkylthio-1,3,5-triazines,(2). .omega.,.omega.'-thiodi(C.sub.2 -C.sub.6 polymethylene)-bis[3-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)-carboxylates],(3). N,N'-C.sub.2 -C.sub.10 polymethylene-bis[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxamides], and(4). tetrakis-{methylene-[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxylate]}methanes.Type: GrantFiled: March 11, 1981Date of Patent: July 27, 1982Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masao Okabe, Masatugu Matunaga, Kozo Ishiyama
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Patent number: 4293660Abstract: A resin composition comprising(a) a polyphenylene ether resin or a mixture of it with a polystyrene resin, and(b) a grafted block copolymer of an unsaturated polyolefin and butyl rubber obtained by graft copolymerization in the presence of a bifunctional phenolic compound as a grafting vehicle.Type: GrantFiled: April 16, 1980Date of Patent: October 6, 1981Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga
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Patent number: 4293478Abstract: An improved method for dispersing an inorganic pigment uniformly in polyphenylene ether resins. A polyphenylene ether composition having an inorganic pigment uniformly dispersed therein is obtained by intimately mixing a polyphenylene ether resin and the inorganic pigment in a weight ratio of from 0.5:1 to 2:1 by a high-speed mixer to form a pre-blend, and then mixing the pre-blend intimately with a polyphenylene ether in a conventional mixer such as an extruder. The pre-blend can also be uniformly dispersed in a mixture of the polyphenylene ether with polystyrene, a styrene/butadiene copolymer, a styrene/butadiene/acrylonitrile terpolymer, or a rubber-modified high impact polystyrene.Type: GrantFiled: October 3, 1979Date of Patent: October 6, 1981Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Hiroshi Nakai, Yukio Sasaki
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Patent number: 4282335Abstract: A high molecular resin composition having superior impact strength and processability and comprising a polymeric matrix containing polyphenylene ether and a minor proportion of a low-molecular-weight olefin oligomer dispersed therein.Type: GrantFiled: March 26, 1980Date of Patent: August 4, 1981Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Yukio Sasaki, Zenpei Mizutani
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Patent number: 4282139Abstract: A fiber-reinforced composition of a polyphenylene ether resin having improved rigidity and dimensional stability, said composition consisting essentially of (a) a polyphenylene ether resin or a mixture of it with a styrene resin, and (b) asbestos fibers.Type: GrantFiled: September 19, 1979Date of Patent: August 4, 1981Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga
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Patent number: 4228258Abstract: A novel resin composition improved in moldability and impact resistance, comprising (A) a polyphenylene oxide having a molecular weight of 5,000 or higher, (B) an aromatic hydrocarbon-formaldehyde resin or a modified aromatic hydrocarbon-formaldehyde resin, and, if necessary, (C) a rubbery polymer, the weight ratio of the resin (A) to the resin (B) being from 10:90 to 99:1 and the amount of the rubbery polymer (C) being 3 to 40 parts by weight per 100 parts by weight of the sum of the resins (A) and (B). This resin composition has excellent mechanical and electrical properties of the polyphenylene oxide together with an improved moldability, impact resistance, and adhesiveness.Type: GrantFiled: January 29, 1979Date of Patent: October 14, 1980Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masaharu Kimura, Norio Sayama, Keiun Ko, Eiichi Yonemitsu
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Patent number: 4153644Abstract: A novel resin composition improved in moldability and impact resistance, comprising (A) a polyphenylene oxide having a molecular weight of 5,000 or higher, (B) an aromatic hydrocarbon-formaldehyde resin or a modified aromatic hydrocarbon-formaldehyde resin, and, if necessary, (C) a rubbery polymer, the weight ratio of the resin (A) to the resin (B) being from 10:90 to 99:1 and the amount of the rubbery polymer (C) being 3 to 40 parts by weight per 100 parts by weight of the sum of the resins (A) and (B). This resin composition has excellent mechanical and electrical properties of the polyphenylene oxide together with an improved moldability, impact resistance, and adhesiveness.Type: GrantFiled: December 15, 1975Date of Patent: May 8, 1979Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masanobu Masu, Masaharu Kimura, Norio Sayama, Keiun Ko, Eiichi Yonemitsu
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Patent number: 4038343Abstract: A resin composition comprising (A) 5 to 95 parts by weight of a copolyphenylene ether derived from a mixture of 50 to 98 mole% of a 2,6-dialkylphenol and 2 to 50 mole% of a 2,3,6-trialkylphenol and (B) 5 to 95 parts by weight of a styrene resin. The composition has superior thermal resistance and oxidation stability under heat and satisfactory mechanical properties, and retains these desirable properties after heat-aging. The composition is suitable for preparation of molded articles.Type: GrantFiled: October 17, 1975Date of Patent: July 26, 1977Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Eiichi Yonemitsu, Akitoshi Sugio, Masanobu Masu, Takao Kawaki, Yukio Sasaki
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Patent number: 3963804Abstract: A thermoplastic blend composition having especially superior impact strength and fatigue resistance comprising 15 ro 80% by weight of a polyphenylene oxide, 16 to 75% by weight of a rubber-modified polystyrene, 2 to 15% by weight of an aromatic polycarbonate and 2 to 15% by weight of a high styrene rubber, the sum total of the proportions of these ingredients being 100% by weight.Type: GrantFiled: April 18, 1974Date of Patent: June 15, 1976Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Eiichi Yonemitsu, Akitoshi Sugio, Takanari Nawata, Masanobu Masu, Masaharu Kimura, Norio Sayama