Patent ID: 6492030
Filing Date: 2002-12-10
Classification: C08G,H01B,H05K,Y10T

Abstract:
A thermosetting low dielectric resin composition comprising a component (a), which is a siloxane denatured polyimide comprising a structural unit expressed by the following formula (2a), a structural unit expressed by the following formula (2b), and a structural unit expressed by the following formula (2c). where, in the above formulae, Z indicates a direct coupling, or a â€”Oâ€”, â€”SO2â€”, â€”COâ€”, â€”C(CH3)2â€”, â€”C(CF3)2â€”, or â€”COOCH2CH2OCOâ€”bond; Ar1 indicates a bivalent group having an aromatic ring; Ar2 indicates a bivalent organic group having one or two hydroxyl groups or carboxyl groups; R indicates a 1Ëœ10 C alkylene or â€”CH2OC6H8â€” of which the methylene group is bonded to Si; and n is an integer between 1Ëœ20; a component (b), which is a compound expressed by the following formula (b-1) or the following formula (b-2): â€ƒand where, R in the above formulas (b-1) and (b-2) indicates a hydrogen atom or a methyl group and a component (c), which is a compound having two or more maleimide groups.