Patent ID: 7128976

Claim:
A composition for film formation which comprises: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by the following formula (1) and at least one silane compound selected from the group consisting of compounds represented by the following formula (2), or a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by the following formula (3), or a product of hydrolysis and condensation obtained by hydrolyzing and condensing combinations of at least one silane compound represented by formula (3) and at least one silane compound represented by formula (1) and/or at least one silane compound represented by formula (2); and wherein the hydrolysis and condensation takes place in the presence of water and an ammonium compound, R a Si(OR 1 ) 4-a (1) wherein R represents a hydrogen atom, a fluorine atom, or a monovalent organic group; R 1 represents a monovalent organic group; and a is an integer of 1 or 2; Si(OR 2 ) 4 (2) wherein R 2 represents a monovalent organic group; R 3 b (R 4 O) 3-b Si—(R 7 ) d —Si(OR 5 ) 3-c R 6 c (3) wherein R 3 to R 6 may be the same or different, and each represents a monovalent organic group; b and c may be the same or different, and each is a number of 0 to 2; R 7 represents an oxygen atom, a phenylene group, or a group represented by —(CH 2 ) n —, wherein n is an integer of 1 to 6; and (B) an organic solvent; and wherein the ammonium compound is selected from the group consisting of tetramethylammonium maleate, pyridinium acetate, and diazobicycloundecene acetate.