Patent ID: 8568783
Filing Date: 2013-10-29
Classification: A61K,A61Q,C07B,C07F

Abstract:
1. A method for preparing a hydrophilized substrate, comprising: (A) treating a surface of a substrate with a hydrolyzable silyl group-containing acid anhydride compound having the general formula (1): wherein R R A is a straight or branched C a is an integer of 1 to 3, b is an integer of 0 to 2, and a+b=3, (B) immersing the surface treated substrate in water or a mixture of water and a solvent, adding a base thereto, and heating the liquid for thereby hydrolyzing the acid anhydride moiety to open its ring and neutralizing the resultant carboxylic acid, and (C) removing water and the solvent until the substrate is dry.