Moisture barrier membrane with tearable release liner composite

Details Moisture barrier membrane with tearable release liner composite Moisture barrier membrane with tearable release liner composite

B - Operations, Transporting

32

B

B32B 23/00 (2006.01) B32B 5/12 (2006.01) B32B 7/06 (2006.01) B32B 27/10 (2006.01) C09J 7/02 (2006.01) E04B 1/00 (2006.01) E04B 1/66 (2006.01) E04B 5/00 (2006.01) E04C 1/00 (2006.01)

Patent

CA 2514739

An exemplary moisture barrier membrane (10) comprises a waterproof adhesive layer (14), a carrier support (12), and a release liner (16) composite having a paper sheet (20), cutting strings (22), a polyolefin (24) coating or film for holding the strings against the paper and apart from the waterproof adhesive layer, and a release agent (26) such as silicone or wax over the polyolefin coating or film. This construction allows for relatively thin paper and strings to be used, such that tear resistance is conferred upon the release liner composite as a whole.

L'invention concerne une membrane barrière contre l'humidité qui comporte une couche adhésive résistant à l'eau ; un support ; et un composite antiadhésif comprenant une feuille de papier, des ficelles de coupe, un revêtement ou un film de polyoléfine pour maintenir les ficelles contre le papier et séparées de la couche adhésive, et un agent de décollement tel que la silicone ou la cire sur ledit revêtement ou film. Cette construction permet d'utiliser du papier et des ficelles relativement minces qui confèrent au composite antiadhésif dans son ensemble une résistance à la déchirure.

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