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:
Nov. 16, 2004
Filed:
Nov. 26, 2002
Applicant:
Inventor:
Walter Guenter, Forchheim, DE;
Assignee:
4P Folie Forchheim GmbH, Forchheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/718 ; B32B 3/130 ;
U.S. Cl.
CPC ...
B32B 2/718 ; B32B 3/130 ;
Abstract
A plastic film is provided that has release properties towards adhesives. The materials that produce the release properties are incorporated in the plastic layer and can be extruded with it. The materials responsible for producing the release properties are organo-silicone graft polymers or organo-silicone block copolymers obtained from mercapto-functionalized silicones, such as polydimethyl-siloxanes. The materials are produced by modifying SiH-containing polysiloxane with organic, polymerizable monomers of the type that can be produced with acrylates, such as methylmethacrylate, butylacrylate, styrene or vinyl acetate.