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.:
Date of Patent:
Jan. 11, 2022
Filed:
Jul. 15, 2020
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Abstract
A hydrogenated block copolymer satisfying the following conditions (1) to (7): (1) the hydrogenated block copolymer comprises (b) at least one hydrogenated copolymer block containing a vinyl aromatic monomer unit and a conjugated diene monomer unit; (2) a content of the (a) polymer block principally containing a vinyl aromatic monomer unit is 40% by mass or less; (3) Mw is 200,000 or less; (4) a hydrogenation rate is 20% or more; (5) a ratio, in a molecular weight curve of the hydrogenated block copolymer, of an area corresponding to a molecular weight of 10,000 to 150,000 to an area corresponding to a molecular weight of 10,000 to 1,000,000 is over 50%; (6) a vinyl bond content is 20% by mass or more (7) a content, in the (b) hydrogenated copolymer block, of the vinyl aromatic monomer unit is 30% by mass or more and 79% by mass or less.