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. 24, 2026
Filed:
May. 08, 2019
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Yuuki Sato, Kanagawa, JP;
Atsushi Sakai, Kanagawa, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku, JP;
Abstract
A polyimide resin composition obtained by blending a polyimide resin (A) and glass fiber (B), the polyimide resin (A) containing a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) being 20 to 70 mol %, wherein Rrepresents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; Rrepresents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and Xand Xeach independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.