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. 24, 2007
Filed:
Jul. 18, 2002
Applicants:
Ronald F. Childs, Dundas, CA;
Alicja M. Mika, Hamilton, CA;
Jijun GE, Boxborough, MA (US);
Chris Mccrory, Eden Prairie, MN (US);
Inventors:
Ronald F. Childs, Dundas, CA;
Alicja M. Mika, Hamilton, CA;
Jijun Ge, Boxborough, MA (US);
Chris McCrory, Eden Prairie, MN (US);
Assignee:
McMaster University, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membrane than the density at the other major surface. The membranes are useful for separating matter from liquids and display good flux and good rejection at low pressure.