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US 5,962,098 AGranted
Release liner
AssigneeAssidoman Inncoat GmbH
InventorsWilhelm Munninger, Hans Wattendorf
Life of this patent
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Abstract
The release liner has a flat base substrate which coated on both sides with thermoplastic polyolefin. On one side, the base substrate has a release coating which forms a release force to adhesives. On the other side, the base substrate has a polymer-bound mineral particle layer.
Claims18
A release liner comprising:
- a generally flat base substrate having a first side and a second side;
- a layer of thermoplastic polyolefin coated to each of said first and second sides of said base substrate;
- a release coating providing release against pressure-sensitive adhesives applied to said layer of thermoplastic polyolefin coated to said first side;
- and
- a polymer-bound mineral layer applied to said layer of thermoplastic polyolefin coated to said second side, and wherein said polymer-bound mineral layer has a thickness from 1 .mu.m to 5 .mu.m.
2 more elements
Dependencies are inferred from the claim text.