Release liner for pressure sensitive adhesives

A release liner for use with a pressure sensitive adhesive, said release liner comprising:

• (i) a film core having two major outermost surfaces and comprising a thermoplastic elastomeric olefin (TEO):
• and
• (ii) a release layer applied to both major outermost surfaces of said film core, said release layer consisting of at least one release material selected from silicone, polyethylene, polypropylene, and fluorocarbon and providing a release surface for the pressure sensitive adhesive to which said release liner is to be applied.

An adhesive article comprising a release liner applied to a pressure-sensitive adhesive adhered to a substrate, wherein said release liner remains unwrinkled and coextensive with the adhesive at room temperature following (1) exposure of the substrate to which the adhesive article is adhered to a temperature of about 90° C. for a time period of about 20 minutes and (2) removal of the release liner and the pressure sensitive adhesive from the substrate.

An adhesive article comprising a release liner applied to a pressure-sensitive adhesive adhered to a substrate, said release liner comprising one or more layers, at least one of which is a film, each of said one or more layers comprising a thermoplastic elastomeric olefin (TEO), said release liner having at least one layer forming a major surface on said release liner and comprising a release material,

• wherein said release material is on said major surface of said release liner and is in proportions sufficient to provide enough release material to provide said major surface as a release surface for said pressure sensitive adhesive to which said release liner is applied.

An adhesive article comprising a release liner applied to a pressure-sensitive adhesive adhered to a substrate, said release liner comprising:

• (i) a film core having two major outermost surfaces and comprising a thermoplastic elastomeric olefin (TEO);
• and
• (ii) a release layer applied to at least one major outermost surface of said film core, said release layer consisting of at least one release material selected from silicone, polyethylene, polypropylene, and fluorocarbon and providing a release surface for the pressure sensitive adhesive to which said release liner is to be applied.