Patent ID: 6623711
Filing Date: 2003-09-23
Classification: C08G,H01B,H01L

Abstract:
A siloxane-based resin prepared by hydrolyzing and polycondensing a cyclic siloxane compound of formula (1) and a cage-shape siloxane compound of any of formulas (2a) through (2c), optionally with at least one silane compound, in an organic solvent in the presence of a catalyst and water, wherein the silane compound is substituted at Si with at least one hydrolysable group: wherein, R is H, C1-3 alkyl, C3-10 cycloalkyl, or C6-15 aryl; each of X1, X2, and X3 is, independently, C1-3 alkyl, C1-10 alkoxy, or halo, provided that at least one is alkoxy or halo; p is an integer from 3 to 8; and m is an integer from 1 to 10; â€ƒin the above formulas (2a) through (2c), each of X1, X2, and X3 is, independently, C1-3 alkyl, C1-10 alkoxy, or halo, provided that at least one is alkoxy or halo; and n is an integer from 1 to 12.