Release sheet
AssigneeMobil Oil Corporation
InventorPang-Chia Lu
Life of this patent
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Abstract
A composite sheet of a flexible release liner, which is useful in high speed operations is described. The release liner is coated on one side with a crosslinkable high release coating formulation comprising (a) a silicone-acrylate release component; (b) an acrylate-containing crosslinking agent, such as a silicone-acrylate crosslinking agent having a higher acrylate content than the (a) silicone-acrylate, trimethylolpropane triacrylate or epoxylated trimethylolpropane triacrylate; and (c) an acrylic ester monomer or oligomer selected from the group consisting of octyl acrylate, isodecyl acrylate, stearyl acrylate and lauryl acrylate, specifically the (c) acrylate is free of silicone and more than two acrylate groups per molecule.
Claims21
A flexible sheet comprising a film form liner having on one side thereof a crosslinkable release coating comprising a mixture of (a) from about 15 to about 70% of a silicone-acrylate composition based on the weight of the coating mixture;
- (b) an acrylate-containing crosslinking agent;
- and (c) an acrylic ester monomer or oligomer.
A flexible sheet comprising a film form liner having on one side thereof a crosslinkable release coating comprising a mixture of (a) about 15 to about 70% of a silicone-acrylate release composition based upon the weight of the coating mixture;
- (b) an acrylate-containing crosslinking agent selected from the group consisting of one or more of a silicone-acrylate crosslinking agent having an acrylate content which is from about 5 to about 15% greater than the content of the (a) silicone-acrylate release composition, trimethylolpropane triacrylate or epoxylated trimethylolpropane triacrylate;
- and (c) an acrylic ester monomer or oligomer selected from the group consisting of octyl acrylate, isodecyl acrylate, stearyl acrylate and lauryl acrylate.
Dependencies are inferred from the claim text.