Title:
THERMOPLASTIC ELASTOMER COMPOSITION, MOLDED ARTICLE, LAYERED STRUCTURE, AND METHOD FOR PRODUCING SAID LAYERED STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/230482
Kind Code:
A1
Abstract:
The present invention provides: a thermoplastic elastomer composition that exhibits excellent transparency, excellent flexibility which is represented by high tensile strain at break, and high hardness, and can have excellent adhesive strength even with respect to a highly polar material; a molded article; a layered structure; and a method for producing the layered structure. The thermoplastic elastomer composition contains, with respect to 100 parts by mass of a hydrogenated block copolymer (A), 185-1,500 parts by mass of an acrylic polymer (B), 5-150 parts by mass of an aromatic polymer (C) (excluding the hydrogenated block copolymer (A) and the acrylic polymer (B)), and 70-300 parts by mass of a softening agent (D), wherein: the hydrogenated block copolymer (A) is a hydrogenation product of a block copolymer (P) which has two or more polymer blocks (a1) each containing an aromatic vinyl compound-derived structural unit and one or more polymer blocks (a2) each containing a conjugated diene-derived structural unit and in which the contained amount of the polymer blocks (a1) is within the range of 3-45 mass%; and the mass ratio [(C)/(B)] of the aromatic polymer (C) to the acrylic polymer (B) is 0.01-0.19.
Inventors:
KAWAHARA MOE (JP)
HIRAKATA SHUTARO (JP)
OKUMURA NAO (JP)
HIRAKATA SHUTARO (JP)
OKUMURA NAO (JP)
Application Number:
PCT/JP2022/014113
Publication Date:
November 03, 2022
Filing Date:
March 24, 2022
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
B32B25/04; B32B27/30; C08L25/02; C08L53/00; C08L53/02; C08L91/02
Domestic Patent References:
| WO2007023932A1 | 2007-03-01 | |||
| WO2022071314A1 | 2022-04-07 |
Foreign References:
| JP2019157067A | 2019-09-19 | |||
| JP2006213852A | 2006-08-17 | |||
| JP2019157067A | 2019-09-19 | |||
| JP2020139156A | 2020-09-03 | |||
| JP2012502135A | 2012-01-26 | |||
| JP2012502136A | 2012-01-26 | |||
| JP2011132298A | 2011-07-07 | |||
| JPH0693060A | 1994-04-05 | |||
| JPH05507737A | 1993-11-04 | |||
| JPH11335432A | 1999-12-07 | |||
| JP2001278985A | 2001-10-10 |
Other References:
"POLYMER HANDBOOK", vol. VII, 1999, WILEY INTERSCIENCE, pages: 675 - 714
POLYMER ENGINEERING AND SCIENCE, vol. 14, 1974, pages 147 - 154
MACROMOLECULAR CHEMISTRY AND PHYSICS, vol. 201, 2000, pages 1108 - 1114
POLYMER ENGINEERING AND SCIENCE, vol. 14, 1974, pages 147 - 154
MACROMOLECULAR CHEMISTRY AND PHYSICS, vol. 201, 2000, pages 1108 - 1114
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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