Patent ID: 8901274
Filing Date: 2014-12-02
Classification: C08G

Abstract:
1. A polyimide oligomer having the general structure: M-(Z—Y—X—Y—Z) wherein: n is an integer of 1 to 20; X comprises an aromatic diamine selected from the group consisting of 4,4′-methylene bis(2,6-diethylaniline and 4,4″-methylene bis(2-methyl-6-isopropylaniline; Z is independently the same as X or is a different aromatic diamine containing 1-4 aryl moieties, each of which contains 0-4 substituents; Y comprises an aromatic dianhydride containing 1-4 aryl moieties, each of which contains 0-4 substituents; and M is independently the same as Y or is a substituted or unsubstituted anhydride, a substituted or unsubstituted dianhydride, a substituted or unsubstituted bisimide, or a substituted or unsubstituted monomeric or oligomeric phthalonitrile.