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:
May. 16, 1995
Filed:
Mar. 31, 1992
Applicant:
Inventor:
Richard P Pankratz, Circleville, OH (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428352 ; 428412 ; 4284235 ; 4284237 ; 4284242 ; 4284255 ; 428447 ; 428448 ; 428451 ; 4284735 ;
Abstract
A release film comprising in order (a) a polymeric film substrate, (b) a layer containing an organic polymer having reactive segments and polysiloxane segments; and (c) a silicone release layer wherein the adhesion of the silicone release layer to the substrate is improved is described.