Back to results
US 12,611,842 B2Granted
Self-adhering roofing membrane
AssigneeSika Technology AG
InventorsShenghua Xu, Yizhe Wei, Qin Wei
Life of this patent
Estimating the term…
Abstract
A self-adhering roofing membrane, a fully-adhered roof system and a method for producing a self-adhering roofing membrane, the roofing membrane including a waterproofing layer including at least one polymer P1, a first adhesive layer, a barrier layer including a polymeric film including at least one polymer P2, a second adhesive layer, and optionally a release liner, wherein the first and second adhesive layers are pressure sensitive adhesive layers.
Claims20
A self-adhering roofing membrane comprising:
- i) a waterproofing layer having a first and a second major surface and comprising at least one polymer P1,
- ii) a first adhesive layer,
- iii) a barrier layer comprising a polymeric film comprising at least one polymer P2 selected from the group consisting of polyamide, ethylene vinyl alcohol, and polyester,
- iv) a second adhesive layer, and
- v) optionally a release liner,
- wherein the first and second adhesive layers are pressure sensitive adhesive layers.
3 more elements
A kit-of-parts comprising:
- i. a double-sided self-adhering barrier layer comprising a barrier layer, a first adhesive layer covering at least a portion of an upper major surface of the barrier layer, a second adhesive layer covering at least a portion of the lower major surface of the barrier layer and
- ii. a roofing membrane comprising a waterproofing layer comprising at least one polymer P1,
- wherein the double-sided self-adhering barrier layer further comprises a first release liner covering at least a portion of the outer major surface of the first adhesive layer facing away from the barrier layer and a second release liner covering at least a portion of the outer major surface of the second adhesive layer facing away from the barrier layer,
- or
- i.′ a single-sided self-adhering barrier layer comprising a barrier layer, a second adhesive layer covering at least a portion of a lower major surface of the barrier layer and
- ii.′ a single-sided self-adhering roofing membrane comprising a waterproofing layer comprising at least one polymer P1 and a first adhesive layer covering at least a portion of a lower major surface of the waterproofing layer,
- wherein the single-sided self-adhering barrier layer further comprises a second release liner covering at least a portion of the outer major surface of the second adhesive layer facing away from the barrier layer and wherein the single-sided self-adhering roofing membrane further comprises a first release liner covering at least a portion of the outer major surface of the first adhesive layer facing away from the waterproofing layer.
4 more elements
Dependencies are inferred from the claim text.