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:
Apr. 03, 1979
Filed:
Jun. 13, 1978
Applicant:
Inventor:
Stuart Raynolds, Wilmington, DE (US);
Assignee:
E. I. Du Pont De Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526245 ; 428394 ; 526246 ;
Abstract
Copolymers comprising (i) from 50 to 85 percent by weight of units derived from a perfluoroaliphatic acrylate or methacrylate monomer and (ii) from 50 to 15 percent by weight of units derived from a dialkylaminoalkyl acrylate or methacrylate or the corresponding acrylamide or methacrylamide monomer in its amine salt, quaternary ammonium or amine oxide form. The copolymers are useful in oil and water repellency applications.