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:
Aug. 25, 2020
Filed:
Oct. 07, 2016
Sumitomo Chemical Company, Limited, Tokyo, JP;
Kazuyuki Ito, Tsukuba, JP;
Masanobu Matsubara, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
The present invention relates to a resin solution composition containing at least one resin selected from the group consisting of aromatic polysulfones, aromatic polyamideimides, aromatic polyetherimides, aromatic polyimides and aromatic polyamic acids, a sulfone-based solvent, and an ester-based solvent, wherein in this resin solution composition, an amount of the resin, relative to the total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass, and an amount of the ester-based solvent, relative to the total amount of the sulfone-based solvent and the ester-based solvent, is at least 15% by mass but not more than 85% by mass.