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:
Sep. 02, 1980
Filed:
Oct. 23, 1978
Applicant:
Inventor:
Robert E Kesting, Irvine, CA (US);
Assignee:
Nuclepore Corporation, Pleasanton, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
106195 ; 1061 / ; 2105 / ; 264 41 ;
Abstract
Microfiltration membranes are described comprising 10% to 50% cyanoethylated polysaccharide ether polymers blended with 50% to 90% polymers of cellulose nitrate, cellulose acetate or mixtures of the two. These membranes are flexible and strong and can be readily pleated for use in cartridge filters as well as used flat in conventional single- or multi-plate holders. They are also more thermally stable than conventional 'mixed ester' (cellulose nitrate/cellulose acetate) membranes.