Composite composition for layers with micropatterns that have a high relaxation capacity, high chemical resistance, and mechanical stability

摘要

A composite composition comprising a) a hydrolyzate and / or condensate of a1) at least one hydrolyzable alkylsilane having at least one alkyl group, a2) at least one hydrolyzable arylsilane having at least one aryl group, or at least one alkylarylsilane hydrolyzable having at least one alkylaryl group, wherein said hydrolyzable arylsilane or alkylarylsilane is selected from compounds represented by the general formula (II) R'aSiX (4-a) (II) wherein R ', which may be the same or different, is a non-hydrolyzable substituent selected from alkyl, aryl and alkylaryl, at least one of which is an aryl or alkylaryl group, X is a hydrolyzable substituent, is already an integer from 1 to 3; and a3) at least one hydrolyzable silane containing an epoxy group, wherein said hydrolyzable silane containing an epoxy group is selected from compounds represented by the general formula (III) RcSi (R) bX (3-b) (III) wherein Rc is a non-hydrolysable substituent having an epoxy group, R is a non-hydrolysable substituent, X is a hydrolysable substituent, and b is an integer from 0 to 2; and b) at least one organic compound having at least 2 epoxy groups, which is in the solid state at room temperature; and c) a cationic initiator; and wherein at least one of the three silanes (a1, a2, a3) contains two hydrolysable substituent groups; and wherein at least one hydrolysable silane for said hydrolyzate and / or condensate has 3 hydrolysable substituents, and wherein in said hydrolyzate and / or condensate the abundance ratio of the total sum of T0 and T1 is less than 50%, and the abundance ratio of T3 is greater than 15%, where T0: an Si atom that is not linked to another silane molecule; T1: an Si atom that is linked to a silane molecule through a siloxane bond; T2: an Si atom that is linked to two silane molecules through a siloxane bond; and T3: an Si atom that is linked to three silane molecules through a siloxane bond; and the abundance ratio of TX (%) = TX / (T0 + T1 + T2 + T3) x 100%, where X = 0, 1, 2 or 3; and wherein, for the hydrolyzate and / or condensate, from 15 to 60 mole% of at least one hydrolysable alkylsilane a1), from 30 to 80 mole% of at least one arylsilane or hydrolyzable alkylarylsilane a2), and from 1 to 60 mole% of at least one hydrolysable silane containing an epoxy group a3), based on the total amount of hydrolyzable compounds.