C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 7/02 (2006.01) A61F 13/15 (2006.01) A61L 15/24 (2006.01) A61L 15/34 (2006.01) A61L 15/58 (2006.01) C09J 123/18 (2006.01) C09J 123/20 (2006.01) C08L 21/02 (2006.01)
Patent
CA 2186145
There is provided a laminate of a liquid additive containing microporous film with a hot-melt adhesive composition. The hot-melt adhesive is formulated with polybutylene polymers or copolymers with optional tackifiers and/or plasticizers such that the microporous film in the areas of adhesive contact has an L value of at least 70, most preferably at least 80. The liquid additive is preferably a plasticizing oil such as mineral oil.
L'invention concerne un stratifié constitué d'un film microporeux contenant un additif liquide et d'un revêtement d'une composition de colle thermofusible auto-adhésive. La colle thermofusible auto-adhésive est réalisée avec des polymères ou des copolymères du type polybutylène, ainsi que des agents collants et/ou des plastifiants facultatifs. Le film microporeux a une opacité L d'au moins 70 et, de préférence, d'au moins 80 dans les régions de contact adhésif. L'additif liquide est, de préférence, une huile plastifiante telle qu'une huile minérale.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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