Patents by Inventor Yoshitsugu Takai
Yoshitsugu Takai 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: 6562933Abstract: A composition suitable for slush molding is disclosed. The composition comprises a thermoplastic polyurethane elastomer (A) having a number average molecular weight of 10,000 to 50,000 and mainly comprised of a diol component including an aromatic ring-containing diol and a non-aromatic diisocyanate; a plasticizer (B); and optionally an additive. The composition provides a molded article excellent in durability such as thermal/light aging resistance and chemical resistance, soft touch at low temperature, and appearance.Type: GrantFiled: September 27, 1999Date of Patent: May 13, 2003Assignees: Sanyo Chemical Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hideki Ohmori, Yoshitsugu Takai, Junzo Ukai, Hideo Nishimura, Kazuo Kobayashi, Mahito Nomura
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Publication number: 20020016436Abstract: A composition suitable for slush molding is disclosed. The composition comprises a thermoplastic polyurethane elastomer (A) having a number average molecular weight of 10,000 to 50,000 and mainly comprised of a diol component including an aromatic ring-containing diol and a non-aromatic diisocyanate; a plasticizer (B); and optionally an additive. The composition provides a molded article excellent in durability such as thermal/light aging resistance and chemical resistance, soft touch at low temperature, and appearance.Type: ApplicationFiled: September 27, 1999Publication date: February 7, 2002Applicant: Sanyo Chemical Industries, Ltd. and Toyota Jidosha Kabushiki TaisaInventors: HIDEKI OHMORI, YOSHITSUGU TAKAI, ERIKO TAKAI, JUNZO UKAI, HIDEO NISHIMURA, KAZUO KOBAYASHI, MAHITO NOMURA
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Patent number: 6235830Abstract: A composition suitable for slush molding comprising a thermoplastic polyurethane elastomer (A) having a number average molecular weight of 10,000 to 50,000 and a heat softening initiation temperature of 120 to 200° C., a plasticizer (B), a compound (C) containing a radical polymerizable unsaturated group, and optionally an additive. The composition provides a molded article excellent in durability such as thermal/light aging resistance, soft touch at low temperature, and appearance.Type: GrantFiled: September 27, 1999Date of Patent: May 22, 2001Assignees: Sanyo Chemical Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hideki Ohmori, Yoshitsugu Takai, Junzo Ukai, Hideo Nishimura, Kazuo Kobayashi, Mahito Nomura
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Patent number: 6177508Abstract: A composition suitable for slush molding is disclosed. The composition comprises a thermoplastic polyurethane elastomer (A) having a number average molecular weight of 10,000 to 50,000, a glass transition point of not higher than −35° C. and a heat softening initiation temperature of 100 to 160° C.; a plasticizer (B); a blocked polyisocyanate (C); a pigment (D); and a blocking inhibitor (E) comprising a resin powder which is not heat-softened even at 160° C. and has an average particle diameter of not more than 10 &mgr;m. The composition has a wide mold temperature range, and provides a molded article excellent in properties at low temperature, anti-fogging, thermal aging resistance and light aging resistance.Type: GrantFiled: July 2, 1999Date of Patent: January 23, 2001Assignees: Sanyo Chemical Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hideki Ohmori, Yoshitsugu Takai, Junzo Ukai, Hideo Nishimura, Kazuo Kobayashi
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Patent number: 6057391Abstract: A composition suitable for slush molding is disclosed. The composition is mainly comprised of a thermoplastic polyurethane elastomer (A) with a number average molecular weight of 20,000 to 50,000 and a glass transition point of not higher than -35.degree. C., a plasticizer (B), a blocked polyisocyanate (C) and a pigment (D), wherein each of(B), (C) and (D) is respectively contained in a prescribed quantities. The polyurethane-type slush molding composition provides a molded article of low hardness, high elongation at low temperature, and excellent thermal aging resistance and light aging resistance.Type: GrantFiled: June 3, 1998Date of Patent: May 2, 2000Assignees: Sanyo Chemical Industries, Ltd., Toyota Jidosha Kabushiki KaishaInventors: Junzo Ukai, Hideo Nishimura, Yoshitsugu Takai, Hideki Ohmori, Toshihiko Nakamura, Kazuo Kobayashi
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Patent number: 5886098Abstract: A polyetheresteramide having good heat resistance, permanent antistatic property and superior compatibility with thermoplastic resins and a resin composition containing the polyetheresteramide are disclosed, wherein the polyetherester-amide consists essentially of a polyamide oligomer with carboxylic chain ends having a number average molecular weight between 200 and 5,000 and a bisphenol compound with oxyalkylene units having a number average molecular weight between 300 and 3,000. Antistatic resin compositions with good antistatic property and heat resistance are obtained from compositions comprising 3 to 40% by weight of the polyetheresteramide and 60 to 97% by weight of thermoplastic resins. The antistatic resin compositions can contain as compatibilizers vinyl polymers having functional groups such as carboxyl and epoxy groups or block polymers containing polyolefin blocks and aromatic vinyl polymer blocks.Type: GrantFiled: November 10, 1997Date of Patent: March 23, 1999Assignee: Sanyo Chemical Industries, Ltd.Inventors: Yasuhiro Ueda, Eiichi Senda, Yoshitsugu Takai, Tokiko Kokubu, Toshiaki Okamoto, Eiji Ichihara
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Patent number: 5652326Abstract: A polyetheresteramide having good heat resistance, permanent antistatic property and superior compatibility with thermoplastic resins and a resin composition containing of the polyetheresteramide are disclosed, wherein the polyetherester-amide consists essentially of a polyamide oligomer with carboxylic chain ends having a number average molecular weight between 200 and 5,000 and a bisphenol compound with oxyalkylene units having a number average molecular weight between 300 and 3,000. Antistatic resin compositions with good antistatic property and heat resistance are obtained from compositions comprising 3 to 40% by weight of the polyetheresteramide and 60 to 97% by weight of thermoplastic resins. The antistatic resin compositions can contain as compatibilizers vinyl polymers having functional groups such as carboxyl and epoxy groups or block polymers containing polyolefin blocks and aromatic vinyl polymer blocks.Type: GrantFiled: March 1, 1994Date of Patent: July 29, 1997Assignee: Sanyo Chemical Industries, Ltd.Inventors: Yasuhiro Ueda, Eiichi Senda, Yoshitsugu Takai, Tokiko Kokubu, Toshiaki Okamoto, Eiji Ichihara
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Patent number: 5604284Abstract: A polyetheresteramide having good heat resistance, permanent antistatic property and superior compatibility with thermoplastic resins and a resin composition containing the polyetheresteramide are disclosed, wherein the polyetherester-amide consists essentially of a polyamide oligomer with carboxylic chain ends having a number average molecular weight between 200 and 5,000 and a bisphenol compound with oxyalkylene units having a number average molecular weight between 300 and 3,000. Antistatic resin compositions with good antistatic property and heat resistance are obtained from compositions comprising 3 to 40% by weight of the polyetheresteramide and 60 to 97% by weight of thermoplastic resins. The antistatic resin compositions can contain as compatibilizers vinyl polymers having functional groups such as carboxyl and epoxy groups or block polymers containing polyolefin blocks and aromatic vinyl polymer blocks.Type: GrantFiled: June 5, 1995Date of Patent: February 18, 1997Assignee: Sanyo Chemical Industries, Ltd.Inventors: Yasuhiro Ueda, Eiichi Senda, Yoshitsugu Takai, Tokiko Kokubu, Toshiaki Okamoto, Eiji Ichihara
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Patent number: 5602203Abstract: An olefinic resin composition which comprises 100 parts by weight of a thermoplastic olefin elastomer consisting of a polyolefin resin and an olefinic copolymer rubber and 0.5 to 30 parts by weight of a modified polyolefin obtained by reacting an unsaturated carboxylic acid (anhydride)-modified polyolefin with an aminoalcohol represented by the formula H.sub.2 N--R--OH in which R is an alkylene, arylene or aralkylene group having 18 or less carbon atoms. The olefinic resin composition can give a molded article which can be satisfactorily coated with a coating material without a primer and has excellent heat fusibility to various resin and metals.Type: GrantFiled: March 1, 1995Date of Patent: February 11, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Tatsuo Hamanaka, Tadashi Hikasa, Yoshitsugu Takai, Tetsuya Yamada
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Patent number: 5466555Abstract: A releasing composition for an electrophotographic toner, which comprises 60.about.99.5% by weight of a low molecular weight polypropylene (A), and 0.5.about.40% by weight of at least one modified polyolefin (B) selected from the group consisting of (B1) a modified polypropylene comprising a low molecular weight polypropylene (a1) having a melt viscosity at 160.degree. C. higher than that of said polypropylene (A), modified with an ethylenically unsaturated carboxylic acid or an anhydride thereof (b1), and (B2) a modified polyethylene comprising a low molecular weight polyethylene (a2) having a melt viscosity of 10.about.8,000 cps at 140.degree. C., modified with an ethylenically unsaturated carboxylic acid or an anhydride thereof (b2). A toner prepared from a combination of the releasing composition and a thermoplastic binder resin exhibits improved flowability without reducing the offset temperature of the toner.Type: GrantFiled: July 11, 1994Date of Patent: November 14, 1995Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takayuki Taguchi, Kenichi Hasegawa, Sohkichi Baba, Yoshitsugu Takai