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:
Jul. 15, 2025
Filed:
Jun. 22, 2020
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Atsushi Sakai, Kanagawa, JP;
Yuuki Sato, Kanagawa, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku, JP;
Abstract
A polyimide resin composition containing a polyimide resin (A) and a fluororesin (B), wherein the polyimide resin (A) contains 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) is 20 to 70 mol %, and the fluororesin (B) has a weight loss percentage measured using a differential scanning calorimeter after heating from 100° C. to 450° C. at a heating rate of 10° C./min in an air atmosphere of 1% or less: 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; and a molded article thereof.