Predominantly biodegradable release film
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United States of America Patent
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Oct 18, 2016
Grant Date -
Aug 23, 2012
app pub date -
Mar 20, 2012
filing date -
Sep 21, 2009
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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.
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