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:
Oct. 20, 1992
Filed:
Jul. 18, 1990
Applicant:
Inventors:
Yitzchak Kenigsberg, Petah Tikvah, IL;
Ehud Shchori, Rehovot, IL;
Assignee:
Gelman Sciences Inc., Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 22 ; 811552 ; 811564 ; 21050021 ; 210506 ; 264 48 ; 427508 ; 427244 ; 427513 ; 427501 ; 427496 ;
Abstract
Oil and water repellency is conferred upon porous substrates (10) by treatment with a solution of a monomer (16) of the formula: (C.sub.n E.sub.2n+1)(CH.sub.2).sub.x (CHR)OCOCH.dbd.CH.sub.2 where n is an integer; X is 0,1,2 or 3 and R is H or CH.sub.2 --OCOCH.dbd.CH.sub.2. The monomer is polymerized in situ upon the substrate to provide a conformal coating (16') which preserves the porous structure.