Release liner
AssigneeMinnesota Mining and Manufacturing Company
InventorsMichael A. Johnson, Maurice H. Kuypers
Life of this patent
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Abstract
A release liner comprising: (a) a reinforced, non-woven sheet composite comprising two layers, one of the layers being composed of a plurality of substantially randomly orientated fibers and the other layer being composed of substantially lineally-aligned fibrous reinforcement material; and (b) a release layer on one or more of the layers of the non-woven sheet composite, the release layer comprising at least one of the following: an olefinic homopolymer, an olefinic copolymer, or a copolymer of an olefin and a polar comonomer.
Claims15
A release liner comprising:
- (a) reinforced, non-woven sheet composite comprising two layers, one of the layers being composed of a plurality of substantially randomly orientated fibers and the other layer being composed of substantially lineally-aligned fibrous reinforcement material;
- and
- (b) a release layer on one or more of said layers of said non-woven sheet composite, said release layer comprising at least one of the following:
- an olefinic homopolymer, an olefinic copolymer, or a copolymer of an olefin and a polar comonomer.
A release liner according to claim further comprising a friction-enhancing agent on the major surface of said sheet composite opposite the major surface on which said release layer is on.
Dependencies are inferred from the claim text.