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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10927211 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Nov. 21, 2018

Block copolymer hydrogenate, resin composition, and applications thereof

Applicant:

Kuraray Co., Ltd., Kurashiki, JP;

Inventors:

Mikio Masuda, Kamisu, JP;

Yasushi Senda, Kamisu, JP;

Masahiro Kato, Kamisu, JP;

Assignee:

KURARAY CO., LTD., Kurashiki, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Peter D Mulcahy

Int. Cl.
CPC ...
C08L 23/00 (2006.01); C08F 297/04 (2006.01); C08L 53/02 (2006.01); C08L 69/00 (2006.01); C08L 81/04 (2006.01); C08L 77/00 (2006.01); C08L 71/12 (2006.01); C08L 25/06 (2006.01); C08L 59/00 (2006.01); C08L 67/03 (2006.01); C08L 15/00 (2006.01); C08L 23/06 (2006.01); C08L 23/12 (2006.01); C08K 5/01 (2006.01); C09J 153/02 (2006.01);
U.S. Cl.
CPC ...
C08F 297/046 (2013.01); C08K 5/01 (2013.01); C08L 15/005 (2013.01); C08L 23/00 (2013.01); C08L 23/06 (2013.01); C08L 23/12 (2013.01); C08L 25/06 (2013.01); C08L 53/025 (2013.01); C08L 59/00 (2013.01); C08L 67/03 (2013.01); C08L 69/00 (2013.01); C08L 71/12 (2013.01); C08L 77/00 (2013.01); C08L 81/04 (2013.01); C09J 153/025 (2013.01); C08F 2410/04 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01);
Abstract

A block copolymer hydrogenate, which is a hydrogenate of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound in an amount of more than 70 mol %, and a polymer block (B) containing a structural unit derived from a conjugated diene compound in an amount of 30 mol % or more, and further satisfies the following requirements: Requirement (1): The content of the polymer block (A) in the block copolymer hydrogenate is 1 to 30% by mass. Requirement (2): The conjugated diene compound contains isoprene. Requirement (3): A total content of the 1,2-bond unit and the 3,4-bond unit in the structural units derived from the conjugated diene compound is 60 mol % or more. Requirement (4): The hydrogenation rate of the polymer block (B) is 60 mol % or more. Requirement (5): The block copolymer hydrogenate has a serial temperature range where tan δ, as measured according to JIS K7244-10 (2005) and under the conditions of a strain of 0.1%, a frequency of 1 Hz, a measurement temperature of −70 to 100° C. and a rate of temperature increase of 3° C./min, is 1.0 or more, and the maximum width of the temperature range is 16° C. or more.

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