US Patent Issued to THREEBOND on Dec. 16 for "Photocurable composition, sealing agent, and cured product" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,477, issued on Dec. 16, was assigned to THREEBOND Co. LTD. (Tokyo).

"Photocurable composition, sealing agent, and cured product" was invented by Chiaki Matsui (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A photocurable composition contains components (A) to (D). The composition contains 1 to 50 parts by mass of the following component (B) and 50 to 300 parts by mass of the component (C) relative to 100 parts by mass of the following component (A). The component (A) is a polyisobutylene having a (meth)acryloyl group in its molecule. The component (B) is a urethane-modified (meth)acrylate oligomer (excluding the component (A)). The component ...