The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1992
Filed:
Aug. 25, 1989
Ube Industries, Ltd., Ube, JP;
Abstract
A terminal-modified aromatic imide oligomer composition having an improved curing performance and useful for cured polyimide articles having excellent mechanical properties and heat-resistance, comprising 100 parts by weight of a terminal-modified aromatic imide oligomer consisting of a reaction product of a biphenyltetracarboxylic dianhydride with an aromatic diamine and an acetylenically unsaturated monoamine compound, having acetylenically unsaturated terminal groups and exhibiting a logarithmic viscosity number of 0.1 to 1.0 at 30.degree. C.; and 1 to 20 parts by weight of an unsaturated imide compound consisting of a reaction product of a biphenyltetracarboxylic dianhydride with an acetylenically unsaturated monoamine compound.