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:
Nov. 27, 2007
Filed:
Oct. 20, 2005
Applicants:
Hideki Ozawa, Ichihara, JP;
Fumio Aoki, Ichihara, JP;
Inventors:
Hideki Ozawa, Ichihara, JP;
Fumio Aoki, Ichihara, JP;
Assignee:
Ube Industries Ltd., Yamaguchi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 79/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A water-soluble polyimide precursor, which can be suitably applied for aromatic polyimides and exhibits a low reduction in heat resistance and mechanical properties, an aqueous solution of the polyimide precursor and a polyimide obtained from the precursor. A heat-resistant fiber impregnated material and an impregnated sheet-like material are prepared by using the precursor and a laminate is prepared by employing the precursor.