Polyimide film with tin or tin salt incorporation resulting...

Details Polyimide film with tin or tin salt incorporation resulting... Polyimide film with tin or tin salt incorporation resulting...

C - Chemistry, Metallurgy

08

L

C08L 79/08 (2006.01) B29C 39/00 (2006.01) C08G 73/10 (2006.01) C08J 5/18 (2006.01) C08J 5/22 (2006.01) C08K 3/16 (2006.01) C08K 5/098 (2006.01) C09J 179/08 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2051795

16 PE-0273-A TITLE POLYIMIDE FILM WITH TIN OR TIN SALT INCORPORATION RESULTING IN IMPROVED ADHESION ABSTRACT OF THE DISCLOSURE A polyimide film having improved adhesion and thermal durability containing from 0.02 to 1% by weight of tin based on the weight of the film. A process for preparing a polyimide film is also described wherein a tin (II) or tin (IV) salt is introduced into a film- forming polyamide acid polymer prior to the casting step. 16

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