公开(公告)号：US20250034423A1

公开(公告)日：2025-01-30

申请号：US18717313

申请日：2022-12-06

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Masako SEKI ,  Tsunehisa MIKI ,  Mitsuru ABE ,  Hiroshi ARAKI

IPC: C09D15/00 ,  B27N3/00 ,  C08F290/06 ,  C09D151/08

Abstract: A polyurethane precursor-containing woody material that includes a woody raw material that is impregnated with a blocked isocyanate compound and a polyethylene glycol. The polyethylene glycol is represented by a formula: HO—(CH2—CH2—O), —H (n=1 to 12,000). The blocked isocyanate compound is a compound which is formed from an isocyanate compound and a blocking agent that protects an isocyanate group contained in the isocyanate compound, and is inactivated by a group derived from the blocking agent.