US Patent Issued to DIC on Nov. 4 for "Block copolymer intermediate, block copolymer, and methods for producing same" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,039, issued on Nov. 4, was assigned to DIC Corp. (Tokyo).

"Block copolymer intermediate, block copolymer, and methods for producing same" was invented by Youki Kou (Sakura, Japan) and Hisakazu Tanaka (Sakura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The block copolymer intermediate represented by the following general formula (1) or (2) is used. In the formulae, R1 and R7 each independently represent a polymerization initiator residue, R2 and R8 each independently represent an aromatic group or an alkyl group, Y1 represents a polymer block of (meth)acrylic ester, Y2 represents a polymer block of styrene or a derivative thereof, andn each ...