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. 07, 2025
Filed:
Jun. 04, 2020
Dic Corporation, Tokyo, JP;
DIC Corporation, Tokyo, JP;
Abstract
Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2): wherein, in the formulae (1) and (2), each of Rand Rindependently represents a polymerization initiator residue, each of Rand Rindependently represents an aromatic group or an alkyl group, Yrepresents a polymer block of (a)an (meth)acrylic acid ester, Yrepresents a polymer block of styrene or a derivative thereof, L represents an alkylene group or a phenylene group, X represents a halogen group, and each of m and n independently represents an integer of 1 to 5.