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US 9,284,733 B2Granted
Sealing membrane with barrier against plasticizer migration
AssigneeSika Technology AG
InventorsMario Slongo, Carine Kerber, Hagen Aust
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Abstract
A sealing web including the following layer structure: a) a film containing polyvinyl chloride; b) a first adhesive; c) a polyethylene terephthalate film; and d) a second adhesive; wherein the layers are disposed in the sequence a), b), c), and d). The sealing web makes it possible to implement adhesion of a PVC web over a large area, without problems arising from the migration of the plasticizer from the PVC film to the adhesive, or in that said problems are at least greatly reduced.
Claims13
A sealing membrane comprising the following layer structure:
- a) a film containing polyvinyl chloride;
- b) a first heat-activated adhesive based on (meth)acrylates;
- c) a polyethylene terephthalate film;
- and
- d) a second adhesive,
- wherein the layers are arranged in the sequence a), b), c) and d).
3 more elements
Dependencies are inferred from the claim text.