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:
Mar. 01, 2022
Filed:
Feb. 26, 2019
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
Tokyo Institute of Technology, Tokyo, JP;
Akiyoshi Yamazaki, Kawasaki, JP;
Daisuke Kawana, Kawasaki, JP;
Takehiro Seshimo, Kawasaki, JP;
Teruaki Hayakawa, Tokyo, JP;
Lei Dong, Tokyo, JP;
Rin Odashima, Tokyo, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
Tokyo Institute of Technology, Tokyo, JP;
Abstract
A block copolymer including a first block consisting of a polymer having a repeating structure of a structural unit (u1) containing no silicon atom, and a second block consisting of a polymer having a repeating structure of a structural unit (u2) containing a silicon atom, the second block containing a block (b21) consisting of a polymer having a repeating structure represented by general formula (u2-1), and a block (b22) consisting of a polymer having a repeating structure of a structural unit (u22) containing a silicon atom, and the block (b22) is positioned between the first block and the block (b21) (wherein Rrepresents an alkyl group, a halogenated alkyl group, a hydrogen atom, or an organic group having a polar group; and Rrepresents an organic group having a polar group).