Patents by Inventor Akiyoshi Somemiya
Akiyoshi Somemiya 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: 5684071Abstract: An additive having an improved dispersibility or adhesion property to thermoplastic resins and useful for imparting an excellent flame resistance and other properties thereto without deteriorating properties that the thermoplastic resins originally possess, such as mechanical, electrical and thermal properties and molding processability, which comprises a nitrogen-containing heterocyclic compound or its salt surface-treated with 0.1 to 50% by weight of a compound having at least two functional groups such as epoxy resin, acid anhydride or the like; and a flame retardant polyester resin composition comprising (A) a thermoplastic polyester, (B) a nitrogen-containing heterocyclic compound or its salt, (C) a compound having at least two functional groups and optionally (D) a phosphorus based flame retarder, which may be prepared by adding the component (B) previously surface-treated with the component (C) or separately adding the components (B) and (C) to the polyester (A).Type: GrantFiled: June 27, 1996Date of Patent: November 4, 1997Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kenji Mogami, Masaaki Nakamura, Tadashi Koyama, Tomomi Nakashima, Akiyoshi Somemiya
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Patent number: 5508316Abstract: There are disclosed a resin composition capable of exhibiting a high melt viscoelasticity comprising 100 parts by weight of an aromatic copolyester resin which contains a branching component unit having at least three ester-forming groups in the ratio of 0.01 to 5 moles per 100 moles in total of aromatic dicarboxylic acid units and which has a limiting viscosity of 0.4 to 1.0 dl/g, and 0.05 to 5 parts by weight of a compound having at least two acid anhydride groups in its molecule, and an aromatic polyester resin foamed body produced therefrom and a process for producing the foamed body.Type: GrantFiled: August 22, 1995Date of Patent: April 16, 1996Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masaaki Nakamura, Kenji Mogami, Tadashi Koyama, Tomomi Nakashima, Akiyoshi Somemiya
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Patent number: 4840984Abstract: A polyethylene terephthalate resin composition suitable for use in moldings which comprises:(A) 5 to 93 parts of a polyethylene terephthalate resin and(B) 95 to 7 parts of a polyethylene terephthalate block copolymer having 10 to 55% by weight of units represented by the formula (I): ##STR1## wherein R.sup.1 and R.sub.2 are the same or different and each is a bivalent hydrocarbon group having 2 to 4 carbon atoms, R.sup.3 to R.sup.10 are the same or different and each is hydrogen atom, a monovalent hydrocarbon group or a halogen atom, X is a bivalent group or single bond, and each of m and n is an integer of 5 to 20, said parts of said components (A) and (B) being parts by weight based on the total amount of said components (A) and (B). The composition of the invention can be molded according to injection molding as well as extrusion, and the obtained molded articles have the excellent heat resistance, surface property and fatigue resistance.Type: GrantFiled: February 22, 1988Date of Patent: June 20, 1989Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Kazushi Hirobe
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Patent number: 4742130Abstract: A polyethylene terephthalate resin composition suitable for use in moldings which comprises:(A) 5 to 93 parts of a polyethylene terephthalate resin and(B) 95 to 7 parts of a polyethylene terephthalate block copolymer having 10 to 55% by weight of units represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each is a bivalent hydrocarbon group having 2 to 4 carbon atoms, R.sup.3 to R.sup.10 are the same or different and each is hydrogen atom, a monovalent hydrocarbon group or a halogen atom, X is a bivalent group or single bond, and each of m and n is an integer of 5 to 20, said parts of said components (A) and (B) being parts by weight based on the total amount of said components (A) and (B). The composition of the invention can be molded according to injection molding as well as extrusion, and the obtained molded articles have the excellent heat resistance, surface property and fatigue resistance.Type: GrantFiled: June 4, 1987Date of Patent: May 3, 1988Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Kazushi Hirobe
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Patent number: 4486568Abstract: A resin composition comprising (A) a modified polyphenylene oxide prepared by graft polymerization of an acrylonitrile compound or a monomer mixture containing acrylonitrile compound and a styrene compound in the presence of polyphenylene oxide and (B) a polymer having units of an acrylonitrile compound and being compatible with the modified polyphenylene oxide (A). The composition has excellent heat resistance, mechanical property, impact resistance, solvent resistance, antioxidation property and transparency.Type: GrantFiled: December 28, 1982Date of Patent: December 4, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shunitsu Miyashita, Akiyoshi Somemiya
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Patent number: 4481332Abstract: A heat resistant polymer composition having improved processability and oxidative deterioration resistance which comprises a blend of a polyphenylene oxide copolymer and a polymer prepared by radical polymerization of one or more kinds of monomers having at least one vinyl group in the molecule, the polyphenylene oxide copolymer having a polyphenylene ether structure derived from a phenol compound and containing nitrogen-containing monomer units derived from at least one of the compounds of the general formulas: ##STR1## wherein R.sup.5 to R.sup.11 are hydrogen, a hydrocarbon group or a substituted hydrocarbon group, provided that R.sup.5 and R.sup.6, R.sup.8 and R.sup.9, and R.sup.10 and R.sup.11 can be joined to form a substituted or nonsubstituted aromatic ring.Type: GrantFiled: December 8, 1983Date of Patent: November 6, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Shunichu Miyashita, Junichi Ishizu
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Patent number: 4467076Abstract: Acrylonitrile compound-styrene compound grafted polyphenylene oxides having substantially no unmodified polyphenylene ether have excellent solvent resistance and resistance to oxidation.Type: GrantFiled: February 26, 1982Date of Patent: August 21, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shunitsu Miyashita, Akiyoshi Somemiya
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Patent number: 4456736Abstract: A method is provided wherein graft copolymers of polyphenylene with styrene and/or other vinylic monomers are readily prepared in high yields of grafting efficiency by radical polymerization of vaporized monomer onto solid polyphenylene ether. The resulting graft copolymer has improved properties, such as fracture strength, and chemical resistance.Type: GrantFiled: December 30, 1981Date of Patent: June 26, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shunitsu Miyashita, Masaaki Azuma, Akiyoshi Somemiya
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Patent number: 4335233Abstract: A polyphenylene ether copolymer produced by oxidative coupling of 60 to 99.9 mole percent of a phenol with 0.1 to 40 mol percent of an aniline. The inventive copolymer has improved heat resistance, shock resistance, and tensile strength. When used by itself or in a mixture with other polymers, such as polystyrene or ABS resins, the inventive product is useful as an excellent engineering material.Type: GrantFiled: March 30, 1981Date of Patent: June 15, 1982Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Shunitsu Miyashita, Masaaki Azuma
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Patent number: 3962181Abstract: A process for preparing polyphenylene oxides by oxidizing a nuceus substituted phenol with oxygen in the presence of a basic manganese chelate compound.Type: GrantFiled: May 13, 1974Date of Patent: June 8, 1976Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Takashi Sakauchi, Akiyoshi Somemiya, Satoshi Tonoki