Patents by Inventor Hiromitsu Sasaki

Hiromitsu Sasaki 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).

  • Publication number: 20240218172
    Abstract: There is provided a resin composition which is excellent in rebound resilience in a wide temperature range of about ?5° C. to 55° C. and mechanical strength, and a molded body using the same. A resin composition containing a block copolymer (A) containing: a polymer block (a1) having a structural unit derived from an aromatic vinyl compound; and a polymer block (a2) having a structural unit derived from a conjugated diene containing isoprene; in which the block copolymer (A) has a rebound resilience rate of 60% or more at 25° C., and in which a content of the polymer block (a1) in the block copolymer (A) is 5 to 28% by mass.
    Type: Application
    Filed: March 10, 2022
    Publication date: July 4, 2024
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Takumi HASEGAWA
  • Publication number: 20240166860
    Abstract: The present invention relates to a A resin composition containing: a block copolymer (A) having a polymer block (a1) containing a structural unit derived from an aromatic vinyl compound and a polymer block (a2) containing a structural unit derived from farnesene; a block copolymer (B) having a polymer block (b1) containing a structural unit derived from an aromatic vinyl compound and a polymer block (b2) containing 30 mol % or more of a structural unit derived from isoprene; a plasticizer (C); and a biomass-derived polyolefin-based resin (D), in which the resin composition has a biobased content of 37% by mass or more, and a molded body obtained by using the resin composition.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 23, 2024
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Takahiro SEKIGUCHI, Yuta TOMISHIMA, Takumi HASEGAWA
  • Publication number: 20240117178
    Abstract: A resin composition containing: a block copolymer (I) having a polymer block (a1) containing a structural unit derived from an aromatic vinyl compound and a polymer block (a2) containing a structural unit derived from a conjugated diene compound; a plasticizer (II); and a biomass-derived polyolefin-based resin (III); in which the plasticizer (II) contains a plasticizer (II-1) containing a biomass-derived raw material; and in which the resin composition has a biobased content of 45% by mass or more, and a molded body obtained by using the resin composition.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Takahiro SEKIGUCHI, Yuta TOMISHIMA, Takumi HASEGAWA
  • Patent number: 11951731
    Abstract: Provided are a multilayer body in which base materials composed of a metal, a resin or the like are firmly bonded to each other even when not subjected to primer treatment or the like, and a method for producing the multilayer body. The multilayer body has a base material (X), an adhesive layer (Y), and a base material (Z) in this order, wherein the adhesive layer (Y) contains a hydrogenated block copolymer (A) obtained by hydrogenating a block copolymer (P) containing a polymer block (a) composed of a structural unit derived from an aromatic vinyl compound and a polymer block (b) composed of a structural unit derived from a conjugated diene, the mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) is 1/99 to 50/50, and the adhesive layer (Y) has a storage modulus G? at 100° C. of 1.2×105 to 4.0×105 Pa.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: April 9, 2024
    Assignee: KURARAY CO., LTD.
    Inventors: Daisuke Konishi, Hiromitsu Sasaki, Yuta Tomishima
  • Publication number: 20230235162
    Abstract: A thermoplastic elastomer composition including an acrylic block copolymer (I) and a hydrogenated block copolymer (II). The content of the acrylic block copolymer (I) is 70 to 300 parts by mass with respect to 100 parts by mass of the hydrogenated block copolymer (II); the hydrogenated block copolymer (II) is a hydrogenated product of a block copolymer (P) including a polymer block (A1) containing structural units derived from an aromatic vinyl compound, and a polymer block (B1) containing 1 to 100 mass % of structural units (b1) derived from farnesene and 99 to 0 mass % of structural units (b2) derived from a conjugated diene other than farnesene, the mass ratio [(A1)/(B1)] of the polymer block (A1) to the polymer block (B1) being 1/99 to 70/30; and the hydrogenation ratio of carbon-carbon double bonds in the polymer block (B1) is 50 to 100 mol %.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 27, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Moe KAWAHARA, Makoto AKAI, Daisuke KONISHI, Hiromitsu SASAKI
  • Publication number: 20230109535
    Abstract: Provided are a multilayer body in which base materials composed of a metal, a resin or the like are firmly bonded to each other even when not subjected to primer treatment or the like, and a method for producing the multilayer body. The multilayer body has a base material (X), an adhesive layer (Y), and a base material (Z) in this order, wherein the adhesive layer (Y) contains a hydrogenated block copolymer (A) obtained by hydrogenating a block copolymer (P) containing a polymer block (a) composed of a structural unit derived from an aromatic vinyl compound and a polymer block (b) composed of a structural unit derived from a conjugated diene, the mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) is 1/99 to 50/50, and the adhesive layer (Y) has a storage modulus G? at 100° C. of 1.2×105 to 4.0×105 Pa.
    Type: Application
    Filed: February 25, 2021
    Publication date: April 6, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Yuta TOMISHIMA
  • Publication number: 20230025461
    Abstract: A resin composition containing an ethylene-vinyl acetate copolymer (I) and a hydrogenated block copolymer (II), wherein the hydrogenated block copolymer (II) is a hydrogenated product of a block copolymer (P) containing a polymer block (A) containing a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 1 to 100% by mass of a structural unit (b1) derived from farnesene and 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, wherein the hydrogenation rate of carbon-carbon double bonds in the structural unit derived from a conjugated diene in the block copolymer (P) is 70 mol % or more, and in the resin composition, the content of the ethylene-vinyl acetate copolymer (I) is 40 to 95% by mass and the content of the hydrogenated block copolymer (II) is 5 to 60% by mass.
    Type: Application
    Filed: February 25, 2021
    Publication date: January 26, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Takumi HASEGAWA, Kazumasa KUSUDO
  • Publication number: 20220403145
    Abstract: Provided are: a resin composition containing a rubber (I), a block copolymer (II) and a crosslinking agent (III), wherein the ratio by mass of the rubber (I) to the block copolymer (II), (I)/(II) is 99/1 to 55/45, and the block copolymer (II) is a block copolymer containing a polymer block (A) that contains an aromatic vinyl compound-derived structural unit and a polymer block (B) that contains a farnesene-derived structural unit (b1), and a molded article of the resin composition.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 22, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Daisuke KONISHI, Hiromitsu SASAKI, Takumi HASEGAWA
  • Publication number: 20200139599
    Abstract: The present invention relates to a multilayered film having a high degree of freedom regarding selection of a material and a decoration method, which is not only excellent in handling properties and low-temperature adhesiveness to adherends of various materials but also applicable to decorative molding of every sort in a three-dimensional solid shape, and a method for producing the same.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 7, 2020
    Applicant: KURARAYCO., LTD.
    Inventors: Hiroshi KAWAKITA, Katsuei TAKAHASHI, Hiromitsu SASAKI
  • Patent number: 10597481
    Abstract: A hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, a polymer block (B) containing a structural unit derived from farnesene, and a polymer block (C) containing a structural unit derived from a conjugated diene except farnesene, wherein the block copolymer contains at least two above polymer blocks (A), at least one above polymer block (B) and at least one above polymer block (C), and wherein at least one above polymer block (B) is at the terminal, and the hydrogenation rate of the carbon-carbon double bond in the polymer block (B) and the polymer block (C) is 50 mol % or more.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: March 24, 2020
    Assignees: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yosuke Uehara, Hiromitsu Sasaki, Daisuke Konishi, Masahiro Kato
  • Publication number: 20200079890
    Abstract: A hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, a polymer block (B) containing a structural unit derived from farnesene, and a polymer block (C) containing a structural unit derived from a conjugated diene except farnesene, wherein the block copolymer contains at least two above polymer blocks (A), at least one above polymer block (B) and at least one above polymer block (C), and wherein at least one above polymer block (B) is at the terminal, and the hydrogenation rate of the carbon-carbon double bond in the polymer block (B) and the polymer block (C) is 50 mol % or more.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yosuke UEHARA, Hiromitsu SASAKI, Daisuke KONISHI, Masahiro KATO
  • Publication number: 20190136092
    Abstract: The present disclosure is a layered product (20) comprising a base layer (10) and a pressure sensitive adhesive layer (11), which is in contact with the base layer (10). The base layer (10) comprises a (meth)acrylic resin (M), an acrylonitrile-butadiene-styrene resin, or a polyester resin. The pressure sensitive adhesive layer (11) contains a block copolymer (A) containing an aromatic vinyl compound polymer block (S) and a conjugated diene compound polymer block (D). The aromatic vinyl compound polymer block (S) forms a membrane structure phase (17) along the interface (12) between the base layer (10) and the pressure sensitive adhesive layer (11).
    Type: Application
    Filed: May 17, 2017
    Publication date: May 9, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Kirihiro NAKANO, Keisuke ENOMOTO, Ryota HASHIMOTO, Yoshirou KOUDOU, Yoshiki MUKOO, Hiromitsu SASAKI
  • Patent number: 9994705
    Abstract: A thermoplastic elastomer composition comprising 100 parts by mass of a hydrogenated block copolymer (A) comprising a polymer block (a) consisting of a structural unit derived from an aromatic vinyl compound and a polymer block (b) comprising 1 to 100% by mass of a structural unit (b1) derived from farnesene and comprising 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, a mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) being 1/99 to 70/30; and 5 to 300 parts by mass of a polar group-containing olefinic polymer (B), is excellent in flexibility and molding processability and capable of adhering to a ceramic, a metal, a synthetic resin, or the like even through a heat treatment at low temperatures (for example, 190° C. or lower) without requiring a primer treatment or the like.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 12, 2018
    Assignees: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yusuke Tanaka, Hiromitsu Sasaki, Shota Suzuki, Yosuke Uehara
  • Publication number: 20180134931
    Abstract: A sealant including a block copolymer comprising a polymer block (a) comprising a structural unit derived from an aromatic vinyl compound and a polymer block (b) comprising 1 to 100% by mass of a structural unit (b1) derived from farnesene and 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, a mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) being 5/95 to 45/55, is excellent in molding processability, flexibility, and adhesiveness and also excellent in sound insulation properties and vibration-damping properties (vibration attenuation properties) in a high frequency region in the neighborhood of 4,000 Hz even under high temperatures.
    Type: Application
    Filed: December 11, 2014
    Publication date: May 17, 2018
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Hiromitsu SASAKI, Yosuke UEHARA
  • Publication number: 20180134890
    Abstract: A resin composition including a hydrogenated block copolymer (A) including a polymer block (a) consisting of a structural unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a structural unit (b1) derived from farnesene and containing 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, 50 mol % or more of a carbon-carbon double bond in the polymer block (b) being hydrogenated; and at least one resin (B) selected from the group consisting of a polyphenylene ether-based resin, a styrene-based resin, an acrylic resin, a polycarbonate-based resin, and a polyamide-based resin.
    Type: Application
    Filed: December 11, 2014
    Publication date: May 17, 2018
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yusuke TANAKA, Hiromitsu SASAKI, Yosuke UEHARA, Daisuke KONISHI
  • Publication number: 20180030194
    Abstract: A hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, a polymer block (B) containing a structural unit derived from farnesene, and a polymer block (C) containing a structural unit derived from a conjugated, diene except farnesene, wherein the block copolymer contains at least two above polymer blocks (A), at least one above polymer block (B) and at least one above polymer block (C), and wherein at least one above polymer block (B) is at the terminal, and the hydrogenation rate of the carbon-carbon double bond in the polymer block (B) and the polymer block (C) is 50 mol % or more.
    Type: Application
    Filed: February 5, 2016
    Publication date: February 1, 2018
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yosuke UEHARA, Hiromitsu SASAKI, Daisuke KONISHI, Masahiro KATO
  • Patent number: 9834666
    Abstract: Provided is a polyolefin-based resin composition including a hydrogenated block copolymer (A) and a polyolefin-based resin (B), the hydrogenated block copolymer (A) being a hydrogenated product of a block copolymer including a polymer block (a) composed of a constitutional unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a constitutional unit (b1) derived from farnesene and 99 to 0% by mass of a constitutional unit (b2) derived from a conjugated diene other than farnesene; a mass ratio of the polymer block (a) and the polymer block (b) [(a)/(b)] being 1/99 to 55/45; 50 mol % or more of carbon-carbon double bonds in the polymer block (b) being hydrogenated; and a mass ratio of the polyolefin-based resin (B) and the hydrogenated block copolymer (A) [{polyolefin-based resin (B)}/{hydrogenated block copolymer (A)}] being 1/99 to 99/1.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: December 5, 2017
    Assignees: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Hiromitsu Sasaki, Yosuke Uehara, Shota Suzuki
  • Patent number: 9752027
    Abstract: The thermoplastic elastomer composition of the present invention is a thermoplastic elastomer composition including a hydrogenated block copolymer (A) and a softening agent (B), the hydrogenated block copolymer (A) being a hydrogenated product of a block copolymer including a polymer block (a) composed of a constitutional unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a constitutional unit (b1) derived from farnesene and 99 to 0% by mass of a constitutional unit (b2) derived from a conjugated diene other than farnesene; a mass ratio of the polymer block (a) and the polymer block (b) [(a)/(b)] being 1/99 to 70/30; 50 mol % or more of carbon-carbon double bonds in the polymer block (b) being hydrogenated; and a content of the softening agent (B) being 20 to 2,000 parts by mass on the basis of 100 parts by mass of the hydrogenated block copolymer (A).
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: September 5, 2017
    Assignees: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Hiromitsu Sasaki, Yosuke Uehara, Masahiro Kato
  • Publication number: 20160347967
    Abstract: Provided is an aqueous emulsion including a block copolymer (I) containing a polymer block (a) composed of a structural unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a structural unit (b1) derived from farnesene and 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, with a mass ratio [(a)/(b)] of the polymer block (a) and the polymer block (b) being 5/95 to 70/30; a protective colloid (II); and water, a content of the protective colloid (II) being 3 to 35 parts by mass based on 100 parts by mass of the block copolymer (I).
    Type: Application
    Filed: February 6, 2015
    Publication date: December 1, 2016
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventor: Hiromitsu SASAKI
  • Publication number: 20160312023
    Abstract: A thermoplastic elastomer composition comprising 100 parts by mass of a hydrogenated block copolymer (A) comprising a polymer block (a) consisting of a structural unit derived from an aromatic vinyl compound and a polymer block (b) comprising 1 to 100% by mass of a structural unit (b1) derived from farnesene and comprising 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, a mass ratio[(a)/(b)] of the polymer block (a) to the polymer block (b) being 1/99 to 70/30; and 5 to 300 parts by mass of a polar group-containing olefinic polymer (B), is excellent in flexibility and molding processability and capable of adhering to a ceramic, a metal, a synthetic resin, or the like even through a heat treatment at low temperatures (for example, 190° C. or lower) without requiring a primer treatment or the like.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 27, 2016
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yusuke TANAKA, Hiromitsu SASAKI, Shota SUZUKI, Yosuke UEHARA