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. 14, 2012
Filed:
Sep. 17, 2010
Applicants:
Michael S. Koreltz, Bloomington, MN (US);
David J. Moll, Midland, MI (US);
Inventors:
Michael S. Koreltz, Bloomington, MN (US);
David J. Moll, Midland, MI (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for making dual-sided membrane sheet comprises the steps of: a) forming a microporous polymer sheet including a plurality of capillary channels and b) forming a semi-permeable discriminating layer upon at least a portion of the opposing outer surfaces of the sheet, wherein the sheet is advanced along a production pathway during at least a portion of: step a), step b), or while transferring the sheet from step a) to step b) by engaging the sheet along one or more of its edge sections.