Title:
HYDROGENATED BLOCK COPOLYMER, RESIN COMPOSITION, AND THEIR VARIOUS APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2020/235663
Kind Code:
A1
Abstract:
Provided are a hydrogenated block copolymer and a resin composition that can be modified while preventing secondary reactions, readily secure intended properties, and have a good moldability. A hydrogenated block copolymer that is a hydrogenate of a block copolymer comprising a polymer block (A) composed mainly of an aromatic vinyl compound-derived structural unit and polymer blocks (B) and (C) composed mainly of a conjugated diene compound-derived structural unit, wherein the total content of the polymer block (A) is 5 to 30 mass%, the content of the 3,4-bond and 1,2-bond in the polymer block (B) is 51 to 90 mol%, and the content of the 3,4-bond and 1,2-bond in the polymer block (C) is 1 to 50 mol%. The hydrogenated block copolymer has a storage elastic modulus (G') at 100°C of not more than 1.2 MPa, as obtained by dynamic viscoelastic measurement in accordance with JIS K 7244-10 (2005) under the condition of 0.1% strain, a frequency of 1 Hz, a measurement temperature of -70°C to +200°C, and a rate of temperature rise of 3°C/min.
Inventors:
KATO MASAHIRO (JP)
SENDA YASUSHI (JP)
SENDA YASUSHI (JP)
Application Number:
PCT/JP2020/020208
Publication Date:
November 26, 2020
Filing Date:
May 22, 2020
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08F297/04; B32B27/28; B32B27/30; C08C19/02; C08F8/04; C08L53/00; C08L101/00
Foreign References:
| JP2001240636A | 2001-09-04 | |||
| JPH11130828A | 1999-05-18 | |||
| JP2011105835A | 2011-06-02 | |||
| JP2018184589A | 2018-11-22 | |||
| JPH11236425A | 1999-08-31 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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