Polyimides and co-polyimides based on dioxydiphthalic anhydride

Details Polyimides and co-polyimides based on dioxydiphthalic anhydride Polyimides and co-polyimides based on dioxydiphthalic anhydride

C - Chemistry, Metallurgy

08

G

402/221

C08G 73/10 (2006.01)

Patent

CA 2015163

CASE 5949 ASC/rag 05/08/1989 POLYIMIDES AND CO-POLYIMIDES BASED ON DIOXYDIPHTHALIC ANHYDRIDE Abstract Novel polyimides and co-polyimides are prepared by the conden- sation polymerization of an aryl diamine with dioxydiphthalic anhydride or a mixture thereof with oxydiphthalic anhydride. The polyimides and co-polyimides prepared exhibit a low moisture absorption and improved dielectric properties and can be tailored to provide a composition having desirable mechanical properties, specifically, rigidity.

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