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. 30, 1980
Filed:
Dec. 12, 1978
Applicant:
Inventors:
Richard A Ferren, Ambler, PA (US);
Daniel A Dimmig, King of Prussia, PA (US);
John C Grigger, Oreland, PA (US);
Assignee:
Pennwalt Corporation, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 428421 ; 526254 ;
Abstract
A process for preparing an aqueous concentrated latex of a copolymer or terpolymer of ethylene and a C.sub.2 -C.sub.3 -perfluorocarbon by creaming a latex of 25-30% copolymer solids and recovering a concentrated latex having 1.5-2.5 times the concentration of the starting latex. The concentrated latex can be used to prepare crack-free or void-free coatings on substrates.