US 7,396,898 B2 · Diamine, acid dianhydride, and reactive group containing polyimide composition prepared therefrom and process of preparing them

Abstract

The present invention relates to a novel diamine, a novel acid dianhydride, and a novel composition containing a polyimide produced from such diamine and acid dianhydride. Specifically, the present invention relates to an acid dianhydride that has a photosensitive group bonded through the mediation of an alkylene group or a fluoroalkylene group, a diamine that has a reactive group bonded through the mediation of an alkylene group or a fluoroalkylene group, and a polyimide composition that contains a novel polyimide having at least one of such acid dianhydride residue and diamine residue in a molecule thereof. Particularly, an object of the present invention is to provide a novel polyimide that has both photoreactivity and thermoreactivity specific to the reactive group and whose reactive group is selected from the group consisting of: organic groups derived from cinnamic acid, chalcone, furylacryloyl, benzalacetophenone, stilbene, coumarin, and pyrone; allyl; propargyl; ethinyl; CH2═CH—; CH2═C(CH3)—; and skeletons derived therefrom, and it to provide a novel diamine and a novel acid dianhydride that may be contained in the polyimide composition.

Claims4

Dependent claims

A polyimide composition comprising a polyimide prepared from:

an acid dianhydride;
and
a diamine comprising a structure:
wherein X is selected from the group consisting of —O—, —CH2—O—and —COO—;
Y is a monovalent organic moiety having a first reactive group selected from the group consisting of propargyl, ethinyl, and a residue of cinnamic acid, chalcone, furylacryloyl, benzalacetophenone, stilbene, coumarin or pyrone;
p is an integer from 2 to 30;
and
the acid dianhydride comprises a second reactive group through a C2 to C30 alkylene group or a C4 to C30 fluoroalkylene group;
wherein the second reactive group is selected from the group consisting of allyl, propargyl, ethinyl, CH2═CH—, CH2═C(CH3)—, and a residue of cinnamic acid, chalcone, furylacryloyl, benzalacetophenone, stilbene, coumarin or pyrone.

6 more elements

Dependencies are inferred from the claim text.

Diamine, acid dianhydride, and reactive group containing polyimide composition prepared therefrom and process of preparing them

Life of this patent

Diamine, acid dianhydride, and reactive group containing polyimide composition prepared therefrom and process of preparing them

Life of this patent

Abstract

Claims4