▎ 摘　　要

NOVELTY - Visible light self-repairing high-strength aqueous polyurethane i.e. substituted 3-(carbamoyloxy)-2-(hydroxymethyl)-2-methylpropanoic acid compound (I) is new. USE - Used as visible light self-repairing high-strength aqueous polyurethane i.e. substituted 3-(carbamoyloxy)-2-(hydroxymethyl)-2-methylpropanoic acid compound. ADVANTAGE - The method utilizes the auxiliary illumination conditions which realize high intensity and high self-repair efficiency; and achieves self-repair under visible light conditions. DETAILED DESCRIPTION - Visible light self-repairing high-strength aqueous polyurethane i.e. substituted 3-(carbamoyloxy)-2-(hydroxymethyl)-2-methylpropanoic acid compound of formula (I) is new. R1 = carborane moiety's of formula (II)-(VII); R2 = 4,4'-disulfanediyldianiline or 4,4'-disulfanediyldiphenol; and R = isocyanate. An INDEPENDENT CLAIM is also included for preparation of (I).