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. 20, 1994
Filed:
Jun. 02, 1992
Applicant:
Inventors:
Odile Demuth, Ecully, FR;
Daniel Wattiez, Rouffac, FR;
Jacques Maguin, Lyon, FR;
Jean C Brosse, Connerre, FR;
Fabienne Poncin-Epaillard, Le Mans, FR;
Bruno Chevet, Le Mans, FR;
Assignee:
Institut Textile de France, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B05D / ;
U.S. Cl.
CPC ...
427536 ; 427538 ; 4273935 ; 4274121 ; 4274123 ;
Abstract
The invention relates to the use of the amino groups created on the surface of a polymer material, such as a polypropylene film, by an electric treatment, notably a cold plasma, under nitrogen atmosphere, for accelerating the grafting of the polymer material by impregnating the latter with a bath containing a vinyl type unsaturated monomer comprising a carbonyl group in .alpha. of the double vinyl bond, such as an acrylic monomer.