Polyimides, polyamic acid and ester intermediates thereof,...

Details Polyimides, polyamic acid and ester intermediates thereof,... Polyimides, polyamic acid and ester intermediates thereof,...

C - Chemistry, Metallurgy

08

G

402/220, 154/107

C08G 73/10 (2006.01)

Patent

CA 1219398

NOVEL POLYIMIDES, POLYAMIC ACID AND ESTER INTERMEDIATES THEREOF, AND NOVEL AROMATIC DIAMINES FOR THEIR PREPARATION ABSTRACT OF THE DISCLOSURE Novel polyimides, optionally end-capped with polymerizable or inert groups, and the polyamic acid or ester intermediates thereof are prepared by reacting a tetracarboxylic acid compound (e.g. pyromellitic dianhydride or 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride or its methyl diester) with diamines having the general formula Image , wherein Z is oxygen or sulfur, X and/or Y are carbonyl or carbinol groups, the amine groups may be in the 2-, 3-, and/or 4-position, and isomerism is present when X and/or Y is d carbinol group. The polyi- mides may be end-capped by reaction, during or after their formation, with polymerizable groups such as 3-aminophenyl acetylene or 3,6-endo- methylene-1,2,3,6-tetrahydrophthalic anhydride. The diamines are novel classes of amines when Z is sulfur and when Z is oxygen and X, Y, or X and Y are carbinol groups.

405438

Affiliated with

Also associated with

Rating

Polyimides, polyamic acid and ester intermediates thereof,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyimides, polyamic acid and ester intermediates thereof,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimides, polyamic acid and ester intermediates thereof,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1322920