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:
Mar. 07, 1989
Filed:
Nov. 02, 1987
Akihiro Kunimoto, Ube, JP;
Seiichirou Takabayashi, Ube, JP;
Morio Nakamura, Ube, JP;
Tatuaki Maeda, Ube, JP;
Ube Industries Ltd., Yamaguchi, JP;
Abstract
A shaped electroconductive aromatic imide polymer article comprising an aromatic imide polymer matrix and 10% to 40% by weight of short cut carbon fibers 1 to 30 .mu.m thick and 0.05 to 3.0 mm long dispersed in the matrix, is produced by admixing a slurry of the short cut carbon fibers having a limited moisture content of 1.0% or less in a polymerization medium, with a polymerization mixture containing an aromatic tetracarboxylic acid component and an aromatic diamine component, by subjecting the resultant admixture to a polymerization procedure to prepare a dope comprising a resultant polymerization product, the carbon fibers and the polymerization medium, and by subjecting the dope to shaped article-producing procedures in which the dope is shaped into a desired form and the shaped dope is solidified by removing the polymerization medium to provide a desired shaped article.