Patent ID: 6410150
Filing Date: 2002-06-25
Classification: C09D,H01L,Y10T

Abstract:
A composition for film formation which comprises(A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of an alkali catalyst, at least one silane compound selected from the group consisting of compounds represented by the following formula (1), compounds represented by the following formula (2), and compounds represented by the following formula (3), and (B) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of an acid catalyst, at least one silane compound selected from the group consisting of compounds represented by the following formula (1), compounds represented by the following formula (2), and compounds represented by the following formula (3): RaSi(OR1)4âˆ’aâ€ƒâ€ƒ(1) wherein R represents hydrogen atom, fluorine atom, or a monovalent organic group; R1 represents a monovalent organic group; and a is an integer of 1 or 2;Si(OR2)4â€ƒâ€ƒ(2) wherein R2 represents a monovalent organic group;R3b(R4O)3âˆ’bSiâ€”(R7)dâ€”Si(OR5)3âˆ’cR6câ€ƒâ€ƒ(3) wherein R3 to R6 may be the same or different and each represent a monovalent organic group; b and c may be the same or different and each are an integer of 0 to 2; R7 represents oxygen atom, a phenylene group, or a group represented by â€”(CH2)nâ€”, wherein n is an integer of 1 to 6; and d is 0 or 1.