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:
Oct. 18, 2016
Filed:
Mar. 20, 2012
Michael Schuhmann, Grosshabersdorf, DE;
Kurt Stark, Neuhaus, DE;
Stefan Sitzmann, Kichehrenbach, DE;
Michael Schuhmann, Grosshabersdorf, DE;
Kurt Stark, Neuhaus, DE;
Stefan Sitzmann, Kichehrenbach, DE;
COMMERZBANK INTERNATIONAL S.A., AS SECURITY AGENT, Luxembourg, LU;
Abstract
The present invention relates to a predominantly biodegradable double-separating film and comprising at least one carrier layer (a) that is based on at least one biodegradable polymer, and at least one release layer (b) that is based on at least one cured polysiloxane. The curing of said release layer is based, at least partially, on at least one cross-linked monomer or oligomer additive. Said additive also promotes adhesion between the carrier layer (a) and the release layer (b), and has no siloxane groups but does have at least two functional groups, of which at least one is a functional group with at least one carbon double bond. No adhesion-promoting layer is present between the carrier layer (a) and the release layer (b). In addition the invention relates to the use of such a separating film as a removable protection and cover film.