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:
Feb. 22, 2022
Filed:
Apr. 19, 2018
Zeon Corporation, Tokyo, JP;
Koji Annaka, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
Provided is a binder composition for a non-aqueous secondary battery porous membrane capable of forming a porous membrane having improved adhesiveness in electrolyte solution, heat shrinkage resistance in electrolyte solution, and blocking resistance. The binder composition for a non-aqueous secondary battery porous membrane contains a particulate polymer A and a particulate polymer B having a larger volume-average particle diameter than the particulate polymer A. The particulate polymer A includes a (meth)acrylic acid alkyl ester monomer unit in a proportion of not less than 50 mass % and not more than 90 mass %. The particulate polymer B has a core-shell structure and includes a nitrile group-containing monomer unit in a core portion of the core-shell structure.