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US 6,228,449 B1Granted
Sheet material
Assignee3M Innovative Properties Company
InventorScott R. Meyer
Life of this patent
Estimating the term…
Abstract
A sheet material comprising i) a pressure-sensitive adhesive film comprising an acrylic pressure-sensitive adhesive polymer, and ii) a release film comprising a polyolefin polymer having a density of no greater than 0.90 g/cc, the pressure-sensitive adhesive film being in contact with the polyolefin polymer.
Claims11
A sheet material comprising i) a pressure-sensitive adhesive film comprising a thermosettable pressure-sensitive adhesive comprising an acrylate polymer;
- and ii) a release film comprising a first layer comprising a polyolefin polymer having a density of no greater than 0.90 g/cc and a CDBI of greater than about 70 percent, said pressure-sensitive adhesive film being in contact with said first layer of said release film.
Dependencies are inferred from the claim text.