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:
Oct. 11, 2022
Filed:
May. 19, 2020
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
National University Corporation Hokkaido University, Hokkaido, JP;
Ken Miyagi, Kawasaki, JP;
Takahiro Dazai, Kawasaki, JP;
Toshifumi Satoh, Hokkaido, JP;
Takuya Isono, Hokkaido, JP;
TOKYO OHKA KOGYO CO., LTD., Kawasaki, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo, JP;
Abstract
A composition for forming a phase-separated structure contains a block copolymer having a block (b1) consisting of a repeating structure of a styrene unit and a block (b2) consisting of a repeating structure of a methyl methacrylate unit, in which the block (b2) is disposed at least at one terminal portion of the block copolymer, the block copolymer has a structure (e1) represented by General Formula (e1) at least at one main chain terminal, and the structure (e1) is bonded to the main chain terminal of the block (b2) disposed at a terminal portion of the block copolymer. Rerepresents a hydrocarbon group containing a hetero atom, and Re1 represents a hydrogen atom or a halogen atom.