Patent ID: 6419732
Filing Date: 2002-07-16
Classification: C09D

Abstract:
A pigment ink composition comprising(I)10 parts by weight of an inorganic pigment, (II)0.001 to 10 parts by weight of an organosilicon compound (C) obtained by hydrolysis of (A) 100 parts by weight of a hydrolyzable silane containing an amino group-bearing organic group represented by the following general formula (1): YR1mSiR23âˆ’mâ€ƒâ€ƒ(1) wherein R1 is a substituted or unsubstituted monovalent hydrocarbon group of 1 to 8 carbon atoms, R2 is an alkoxy or acyloxy group of 1 to 4 carbon atoms, Y is an amino group-bearing organic group, and m is equal to 0 or 1, or a partial hydrolyzate thereof, and (B) 5 to 200 parts by weight of a hydrolyzable silane represented by the following general formula (2):R3nSiR44âˆ’nâ€ƒâ€ƒ(2) wherein R3 is a substituted or unsubstituted monovalent hydrocarbon group of 1 to 8 carbon atoms, R4 is an alkoxy or acyloxy group of 1 to 4 carbon atoms, and n is equal to 0, 1 or 2, or a partial hydrolyzate thereof, and(III) 10 to 10,000 parts by weight of water.