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:
Jan. 12, 2021
Filed:
Sep. 14, 2018
Ppg Industries Ohio, Inc., Cleveland, OH (US);
Qunhui Guo, Murrysville, PA (US);
Steven E. Bowles, Pittsburgh, PA (US);
Cynthia Kutchko, Pittsburgh, PA (US);
Deena M. McHenry, Cranberry Township, PA (US);
Kurt G. Olson, Gibsonia, PA (US);
James C. Peters, Pittsburgh, PA (US);
David N. Walters, Slippery Rock, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A method for treating a surface of a microporous membrane includes: (1) contacting at least one surface of the membrane with a treatment composition including: (a) an acrylic polymer prepared from a mixture of vinyl monomers including: (i) a (meth)acrylic acid monomer and (ii) a silane-functional acrylic monomer; and (b) a base, where the acrylic polymer is in contact with the filler present in the matrix; and (2) subjecting the membrane of (1) to conditions sufficient to effect a condensation reaction between the filler and the acrylic polymer. A treated microporous membrane and an aqueous treatment composition are also disclosed.