Patents by Inventor Toshinori Shiraki
Toshinori Shiraki 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: 8071676Abstract: A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (?) a base polymer and (?) groups of a primary modifier having a functional group which are bonded to the polymer (?) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.Type: GrantFiled: December 22, 2008Date of Patent: December 6, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Patent number: 7964674Abstract: A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan ?) is observed at ?10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at ?20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.Type: GrantFiled: April 1, 2008Date of Patent: June 21, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeki Takayama, Shigeru Sasaki, Katsumi Suzuki, Takahiro Hisasue, Kazuo Moritou
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Patent number: 7960481Abstract: A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan ?) is observed at ?10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at ?20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.Type: GrantFiled: April 1, 2008Date of Patent: June 14, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeki Takayama, Shigeru Sasaki, Katsumi Suzuki, Takahiro Hisasue, Kazuo Moritou
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Patent number: 7893156Abstract: The present invention provides a block copolymer or a hydrogenated product thereof excellent in low-temperature shrinkability, natural shrinkability, rigidity and the like, excellent in a balance of physical properties such as blocking resistance, resistance to fusion bonding in hot water, impact resistance and the like, and having a few fish eyes (FE's) caused by gels. Further, the invention provides a heat shrinkable film and a heat shrinkable multilayer film suitable for drink container packaging, cap seals and the like, using such a block copolymer or the hydrogenated product thereof.Type: GrantFiled: April 23, 2003Date of Patent: February 22, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Susumu Hoshi, Masahiro Mori, Yukio Yamaura, Toshinori Shiraki
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Patent number: 7807241Abstract: A hydrogenated copolymer-containing laminate comprising a substrate layer, an adhesive layer, and a hydrogenated copolymer composition layer which is laminated on and bonded to the substrate layer through the adhesive layer, the hydrogenated copolymer composition layer comprising a hydrogenated copolymer (I), and a rubbery polymer (II), wherein the hydrogenated copolymer (I) is obtained by hydrogenating a conjugated diene/vinyl aromatic compound copolymer, the hydrogenated copolymer (I) having the following characteristics (1) to (4): (1) a vinyl aromatic monomer unit content of from more than 50% by weight to 90% by weight, (2) a content of a vinyl aromatic polymer block of not more than 40% by weight, (3) a weight average molecular weight of from 50,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in conjugated diene monomer units.Type: GrantFiled: May 14, 2004Date of Patent: October 5, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Katsumi Suzuki, Toshinori Shiraki, Jae Yeon Lee, Jun Choi Pil, Suk Hun Sur, Dae Shik Kim
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Patent number: 7696267Abstract: An asphalt composition comprising from 0.Type: GrantFiled: March 28, 2007Date of Patent: April 13, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeo Nakajima
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Patent number: 7642317Abstract: A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-order modifier group bonded to the base block copolymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second-order modifier has a specific functional group which is reactive to the functional group of the first-order modifier group of the first-order modified block copolymer. A second-order modified block copolymer-containing polymer composition comprising the second-order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.Type: GrantFiled: July 6, 2007Date of Patent: January 5, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Nobuaki Kubo, Yasuhiro Kusanose, Shigeo Nakajima, Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki
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Patent number: 7642318Abstract: A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-order modifier group bonded to the base block copolymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second-order modifier has a specific functional group which is reactive to the functional group of the first-order modifier group of the first-order modified block copolymer. A second-order modified block copolymer-containing polymer composition comprising the second-order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.Type: GrantFiled: July 6, 2007Date of Patent: January 5, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Nobuaki Kubo, Yasuhiro Kusanose, Shigeo Nakajima, Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki
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Patent number: 7579385Abstract: Disclosed are dried porous crumbs of a hydrogenated block copolymer which is obtained by hydrogenating a block copolymer comprising (a) at least one polymer block composed mainly of aromatic vinyl monomer units and (b) at least one polymer block composed mainly of conjugated diene monomer units, and which has a molecular weight of 70,000 or more. The dried porous crumbs have a water content of 1% by weight or less and having the capability of absorbing an oil in an amount of 1.0 or more, in terms of the ratio of the weight of an oil, which is absorbed by the dried porous crumbs when the dried porous crumbs are immersed in the oil at 25° C. under atmospheric pressure for 1 minute, to the weight of the dried porous crumbs. Also disclosed is a method for producing the same.Type: GrantFiled: April 28, 1999Date of Patent: August 25, 2009Assignee: Asahi Kasei Kabushiki KaishaInventors: Yasumasa Yamakoshi, Toshinori Shiraki, Masami Kamaya
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Patent number: 7557160Abstract: An impact-resistant vinyl aromatic hydrocarbon resin, the hydrocarbon resin being produced by radical polymerization of 75 to 98 parts by mass of a vinyl aromatic hydrocarbon monomer (A-1) or a mixture of a vinyl aromatic hydrocarbon monomer and a monomer copolymerizable therewith (A-2) and 2 to 25 parts by mass of a modified block copolymer (B), wherein the component (B) comprises a base block copolymer (B-1) comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units and containing at least one polymer block of vinyl aromatic hydrocarbon monomer units (H), and a modifier group bonded thereto (B-2); and the component (B) has the following characteristics: (i) the content of the vinyl aromatic hydrocarbon monomer units is 12 to 50 mass %; (ii) the content of the polymer block (H) is 12 to 45 mass %; and (iii) the polymer block ratio (the mass % of the polymer block (H) based on the total mass of vinyl aromatic hydrocarbon monomer units contained in (B)) is more than 50 mass %.Type: GrantFiled: August 31, 2004Date of Patent: July 7, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Toshinori Shiraki
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Publication number: 20090124730Abstract: A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (?) a base polymer and (?) groups of a primary modifier having a functional group which are bonded to the polymer (?) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.Type: ApplicationFiled: December 22, 2008Publication date: May 14, 2009Inventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Patent number: 7498387Abstract: A first-order modified, hydrogenated polymer comprising (1) a hydrogenated polymer obtained by hydrogenating at least one unhydrogenated polymer selected from the group consisting of a polymer comprising conjugated diene monomer units and a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, and (2) a functional group-containing first-order modifier group bonded to the hydrogenated polymer (1), wherein the content of the vinyl aromatic hydrocarbon monomer units, vinyl aromatic hydrocarbon block ratio, weight average molecular weight, and hydrogenation ratio (as measured with respect to the double bonds in the conjugated diene monomer units) of the first-order modified, hydrogenated polymer are, respectively, within specific ranges.Type: GrantFiled: April 10, 2003Date of Patent: March 3, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Patent number: 7417081Abstract: An asphalt composition comprising 0.5 to 50 parts by weight of a block copolymer component (I), 100 parts by weight of an asphalt (II) and 0.01 to 10 parts by weight of at least one vulcanizing agent (III) selected from the group consisting of sulfur and a sulfur-containing compound, wherein the block copolymer component (I) comprises at least one modified block copolymer comprising an unhydrogenated or hydrogenated base block copolymer comprising at least one vinyl aromatic polymer block (A) and at least one conjugated diene polymer block (B), and a functional group-containing modifier group bonded to the base block copolymer.Type: GrantFiled: April 24, 2003Date of Patent: August 26, 2008Assignee: Asahi Kasei Chemicals CorporationInventors: Shigeo Nakajima, Toshinori Shiraki
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Patent number: 7414093Abstract: A second order modified block copolymer which can be obtained by reacting a first order modified block copolymer with a second order modifier, wherein the first order modified block copolymer comprises a base block copolymer and a functional group-containing first order modifier group bonded to the base block co-polymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second order modifier has a specific functional group which is reactive to the functional group of the first order modifier group of the first order modified block copolymer. A second order modified block copolymer containing polymer composition comprising the second order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.Type: GrantFiled: February 2, 2006Date of Patent: August 19, 2008Assignee: Asahi Kasei Chemicals CorporationInventors: Nobuaki Kubo, Yasuhiro Kusanose, Shigeo Nakajima, Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki
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Publication number: 20080194716Abstract: A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan ?) is observed at ?10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at ?20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.Type: ApplicationFiled: April 1, 2008Publication date: August 14, 2008Applicant: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeki Takayama, Shigeru Sasaki, Katsumi Suzuki, Takahiro Hisasue, Kazuo Moritou
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Publication number: 20080188580Abstract: A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan ?) is observed at ?10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at ?20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.Type: ApplicationFiled: April 1, 2008Publication date: August 7, 2008Applicant: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeki Takayama, Shigeru Sasaki, Katsumi Suzuki, Takahiro Hisasue, Kazuo Moritou
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Publication number: 20080118750Abstract: A hydrogenated copolymer-containing laminate comprising a substrate layer, an adhesive layer, and a hydrogenated copolymer composition layer which is laminated on and bonded to the substrate layer through the adhesive layer, the hydrogenated copolymer composition layer comprising a hydrogenated copolymer (I), and a rubbery polymer (II), wherein the hydrogenated copolymer (I) is obtained by hydrogenating a conjugated diene/vinyl aromatic compound copolymer, the hydrogenated copolymer (I) having the following characteristics (1) to (4): (1) a vinyl aromatic monomer unit content of from more than 50% by weight to 90% by weight, (2) a content of a vinyl aromatic polymer block of not more than 40% by weight, (3) a weight average molecular weight of from 50,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in conjugated diene monomer units.Type: ApplicationFiled: May 14, 2004Publication date: May 22, 2008Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Masahiro Sasagawa, Katsumi Suzuki, Toshinori Shiraki, Jae Yeon Lee, Jun Choi Pil, Suk Hun Suk, Dae Sik Kim
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Patent number: 7371805Abstract: A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan ?) is observed at ?10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at ?20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.Type: GrantFiled: June 26, 2003Date of Patent: May 13, 2008Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Toshinori Shiraki, Shigeki Takayama, Shigeru Sasaki, Katsumi Suzuki, Takahiro Hisasue, Kazuo Moritou
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Publication number: 20070260017Abstract: An impact-resistant vinyl aromatic hydrocarbon resin, the hydrocarbon resin being produced by radical polymerization of 75 to 98 parts by mass of a vinyl aromatic hydrocarbon monomer (A-1) or a mixture of a vinyl aromatic hydrocarbon monomer and a monomer copolymerizable therewith (A-2) and 2 to 25 parts by mass of a modified block copolymer (B), wherein the component (B) comprises a base block copolymer (B-1) comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units and containing at least one polymer block of vinyl aromatic hydrocarbon monomer units (H), and a modifier group bonded thereto (B-2); and the component (B) has the following characteristics: (i) the content of the vinyl aromatic hydrocarbon monomer units is 12 to 50 mass %; (ii) the content of the polymer block (H) is 12 to 45 mass %; and (iii) the polymer block ratio (the mass % of the polymer block (H) based on the total mass of vinyl aromatic hydrocarbon monomer units contained in (B)) is more than 50 mass %.Type: ApplicationFiled: August 31, 2004Publication date: November 8, 2007Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Takaaki Matsuda, Toshinori Shiraki
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Publication number: 20070258760Abstract: A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-order modifier group bonded to the base block copolymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second-order modifier has a specific functional group which is reactive to the functional group of the first-order modifier group of the first-order modified block copolymer. A second-order modified block copolymer-containing polymer composition comprising the second-order modified block copolymer as well as a thermoplastic resin and/or a rubbery polymer.Type: ApplicationFiled: July 6, 2007Publication date: November 8, 2007Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Nobuaki Kubo, Yasuhiro Kusanose, Shigeo Nakajima, Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki