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US 2010/0168265 A1Published application
Precursor composition for polyimide and use thereof
AssigneeEternal Chemical Co., Ltd.
InventorsCHUNG-JEN WU, Pi-Jen Cheng
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Abstract
The present invention provides a precursor composition for polyimides, said composition comprising an amic acid oligomer of formula (1) and a dianhydride derivative with ester (—C(O)OR) and carboxy (—C(O)OH) terminal groups of formula (2): wherein R, G, G1, P, D and m are as defined in the specification. The invention also provides polyimides synthesized from the above-mentioned precursor composition.
Claims17
A precursor composition for a polyimide, comprising (a) an amic acid oligomer of formula (1):
- and
- (b) a compound of formula (2):
- wherein
- R represents a linear or branched alkyl with 1 to 14 carbon atoms, a phenol group, or an ethylenically unsaturated group;
- G and G1 can be the same or different and each independently represent a tetravalent organic group;
- P represents a divalent organic group;
- D each independently represents a nitrogen-containing heterocyclic group or an OR*-containing group wherein R* is a linear or branched alkyl with 1 to 20 carbon atoms;
- and
- m is an integer from 1 to 100.
6 more elements
Dependencies are inferred from the claim text.