C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/21
C08G 77/42 (2006.01) C08G 73/10 (2006.01) C08G 77/26 (2006.01) C08G 77/455 (2006.01) C09D 5/20 (2006.01)
Patent
CA 1299801
CASE 5719/5722 March 23, 1987 JFM/CJL/rag NOVEL SOLUBLE POLYIMIDESILOXANES AND METHODS FOR THEIR PREPARATION AND USE ABSTRACT Fully imidized polyimidisiloxanes which are based on oxydiphthalic anhydride are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from oxydiphthalic anhydride, a difunctional siloxane monomer and an organic diamine that provides an assymetrical structure in the polyimidesiloxane polymer chain. The polyimide- siloxane can be prepared with functional groups which render them directly curable. The polyimidesiloxanes can also be prepared with functional groups which when reacted with an unsaturated compound renders the polymers curable. The products of the invention can be used in the form of solutions in the micro-electronic industry. The polymers can also be used in wire and cable coating and to prepare films, fibers, and molded and extruded articles.
560117
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sumitomo Bakelite Company Limited
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