Patents by Inventor Satoru Hosoda
Satoru Hosoda 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: 5847042Abstract: A polyolefin resin composition of the present invention comprising 0.01 to 2.0 parts by weight of an anti-blocking agent per 100 parts by weight of a polyolefin resin, wherein said anti-blocking agent has substantially two or more maximum values in a weight-based particle size distribution and a difference between a particle diameter giving the largest maximum value and a particle diameter giving the smallest maximum value is not less than 3.0 .mu.m.Type: GrantFiled: September 18, 1995Date of Patent: December 8, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Satoru Hosoda, Satoru Koyama, Kenzo Chikanari
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Patent number: 5451642Abstract: A thermoplastic resin composition containing a polyamide resin composition (C) consisting of a polyamide resin (A) and another thermoplastic resin (B) and at least one modifier (D) is excellent in coatability, mechanical properties, linear expansion coefficient and appearance, can be molded into an article which comprises the polyamide resin (C), wherein the ratio of the percent occupied area of the polyamide resin on the surface of the article to the weight percentage of the polyamide in the polyamide resin composition (C) is not less than 1.2, and/or the ratio of the percent concentration of the polyamide resin on the surface of the article determined on the basis of the nitrogen concentration on the surface of the article to the weight percentage of the polyamide in the polyamide resin composition (C) is not less than 1,2, which article is suited for electric and electronic parts and automobile parts such as a bumper, fender and wheel cover.Type: GrantFiled: December 23, 1994Date of Patent: September 19, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroomi Abe, Takeshi Fujii, Kiyoshi Mitsui, Hideo Shinonaga, Satoru Sogabe, Satoru Hosoda, Keitaro Kojima
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Patent number: 5407991Abstract: The invention provides an olefinic thermoplastic elastomer composition which is excellent in flexibility, processability into sheet and appearance of the resulting sheet and which is able to substitute for flexible polyvinyl chloride. The invention further provides a covering material for industrial parts comprising said composition and a laminate comprising said covering material.The composition comprises a partially crosslinked thermoplastic elastomer I containing an oil-extended olefinic copolymer rubber comprising an olefinic copolymer rubber having a Mooney viscosity of 200-350 or the thermoplastic elastomer I and a partially crosslinked thermoplastic elastomer II containing an oil-extended olefinic copolymer rubber comprising an olefinic copolymer rubber having a Mooney viscosity of 120 or higher and lower than 200 and the composition has a specific viscoelastic characteristics.Type: GrantFiled: October 26, 1993Date of Patent: April 18, 1995Assignee: Sumitomo Chemical Co., Ltd.Inventors: Tadashi Hikasa, Koji Yamashita, Satoru Hosoda, Kiyoshi Mitsui, Yuji Kanda
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Patent number: 5405902Abstract: 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: GrantFiled: December 15, 1993Date of Patent: April 11, 1995Assignee: Sumitomo Chemical Company, Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Kagaoka, Takayuki Okada
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Patent number: 5403888Abstract: 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: GrantFiled: February 23, 1993Date of Patent: April 4, 1995Assignee: Sumitomo Chemical Company, Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
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Patent number: 5304593Abstract: 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: GrantFiled: September 30, 1992Date of Patent: April 19, 1994Assignee: Sumitomo Chemical Co., Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
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Patent number: 5288786Abstract: 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: GrantFiled: August 12, 1992Date of Patent: February 22, 1994Assignee: Sumitomo Chemical Co., Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
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Patent number: 5262478Abstract: A thermoplastic resin composition suitable for shaped articles comprises (A) 100 parts by weight of a composition consisting of (a) from 5-95% by weight of a polyphenylene ether and (b) from 95-5% by weight of a polyamide, (B) from 5-100 parts by weight of a reactive group-modified copolymer rubber, and (C) from 0.01-30 parts by weight of a copolymer of unsaturated epoxy compound/ethylene/(/ethylenically unsaturated compound).Type: GrantFiled: October 23, 1992Date of Patent: November 16, 1993Assignee: Sumitomo Chemical Company, Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda
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Patent number: 5162433Abstract: 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: GrantFiled: July 14, 1989Date of Patent: November 10, 1992Assignee: Sumitomo Chemical Co., Ltd.Inventors: Taichi Nishio, Takashi Sanada, Satoru Hosoda, Kenji Nagaoka, Takayuki Okada
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Patent number: 5075376Abstract: Disclosed are thermoplastic resin compositions comprising:(a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether,(b) (i) a modified propylene polymer obtainable by grafting a propylene polymer with a styrene-based monomer or a mixture of a styrene-based monomer and a monomer copolymerizable with the styrene-based monomer or (ii) a composition comtaining said modified propylene polymer and a propylene polymer, and(c) a rubbery substance,wherein the number mean particle size of the component (a) and (c) in the dispersion phase being from 0.01 to 20 .mu.m, the proportion of the component (a) to the sum of the components (a) and (b) being 1 to 80% by weight, that of the component (b) to the sum of the components (a) and (b) being 99 to 20% by weight, and the proportion of the component (c) to the sum of the components (a) and (b) being 1 to 50 parts by weight per 100 parts by weight of (a) plus (b).Type: GrantFiled: January 5, 1990Date of Patent: December 24, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Motonobu Furuta, Takashi Maruyama, Satoru Hosoda
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Patent number: 4957966Abstract: A novel thermoplastic resin composition comprising a matrix of polyamide resin (E) and a disperse phase of a composition (D), said composition (D) comprising a polyphenylene ether (A), a rubber-like materail (B) and a mutual compatibilizer (C), said polyphenylene ether (A) being obtained from 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 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity .eta..sub.sp/c of 0.40-0.58 deciliter/gram, said mutual compatibilizer (C) being compatible or reactive with said polyphenylene ether and reactive with said polyamide resin, and said polyamide resin (E) having a number average molecular weight of 14,000-40,000 and an end amino group content of 50-95 mmole/kg, wherein the thermoplastic resin composition constitutes 1-65 wt.Type: GrantFiled: June 7, 1988Date of Patent: September 18, 1990Assignee: Sumitomo Chemical Company, Ltd.Inventors: Taichi Nishio, Hiroomi Abe, Yasurou Suzuki, Takashi Sanada, Satoru Hosoda, Takayuki Okada
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Patent number: 4902738Abstract: A thermoplastic elastomer composition which is excellent in melt-flowability and is able to afford injection molded articles superior in appearance is provided, which is a mixture comprising (A) 20-50 parts by weight of an olefinic copolymer rubber, (B) 50-80 parts by weight of an olefinic plastic having a ratio of melt index M.sub.1 /M.sub.0 of 2-50 wherein M.sub.0 is a melt index of the plastic before subjected to thermal decomposition with organic peroxide and M.sub.1 is a melt index of the plastic after subjected to the thermal decomposition with the organic peroxide, sum of (A) and (B) being 100 parts by weight, (C) 5-25 parts by weight of a mineral oil and (D) 0.1-3 parts by weight of a bismaleimide compound, said mixture being dynamically heat treated with (E) an organic peroxide after bismaleimide compound (D) is homogeneously dispersed in the mixture.Type: GrantFiled: November 30, 1988Date of Patent: February 20, 1990Assignee: Sumitomo Chemical Company LimitedInventors: Tatsuyuki Mitsuno, Hideo Shinonaga, Akio Daimon, Satoru Hosoda
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Patent number: 4766157Abstract: Foamed particles of propylene-type polymer of substantially non-crosslinked type, wherein the propylene-type polymer particles have a Melt Index of from 0.1 to 20, said polymer is at least one member selected from the group consisting of:(a) a soft polypropylene homopolymer having an <mmmm> partial rate of a stereoregular pentad partial rate by .sup.13 C-NMR Spectrum of from 45 to 85% and a fusion heat quantity of from 5 to 22 cal/g; and(b) a random copolymer of propylene and an .alpha.-olefin having a carbon number of 4 or more, or a random copolymer of propylene, an .alpha.-olefin having a carbon number of 4 or more, and ethylene, in which the content of the .alpha.-olefin having a carbon number of 4 or more is from 7 to 30 mol %, the content of ethylene is 5 mol % or less, and the cold xylene-soluble matter of said copolymer is from 15 to 60 wt %, said polymer particles being foamed with the use of an evaporation type blowing agent.Type: GrantFiled: December 16, 1986Date of Patent: August 23, 1988Assignee: Sumitomo Chemical Company, LimitedInventors: Hideaki Yamada, Satoru Hosoda, Tadatoshi Ogawa