Sika Technology Ag

Carine Kerber

Herbert Ackermann

Robert Roskamp

Frank Hoefflin

Simon Schoenbrodt

Matia Bulloni

Mario Slongo

Matthias Gössi

Roy Z'Rotz

Elyes Jendoubi

Roman Da Rin

Simon Schönbrodt

Hagen Aust

A sealing device including a waterproofing membrane, a sealant layer covering a portion of the second primary exterior surface of the waterproofing membrane, and an adhesive layer covering a portion of the second primary exterior surface of the waterproofing membrane, wherein the sealant layer is composed of an adhesive sealant composition comprising 1-40 wt.-% of at least one elastomer, 10-60 wt.-% of at least one at 25° C. liquid polyolefin resin, and 5-65 wt.-% of at least one inert mineral filler. Further, a method for producing a sealing device, to a method for waterproofing a substrate, and to a waterproofed substrate.

Self-adhering sealing device with an adhesive layer arrangement

A sealing device includes a functional layer having a first major surface and a second major surface and a barrier layer directly or indirectly connected to the second major surface of the functional layer, wherein the functional layer has a surface roughness having a waviness factor W. Also disclosed is a method for producing a sealing device and the use of a sealing device for waterproofing of a substrate.

Sealing device with increased surface roughness

A sealing device includes a waterproofing membrane, an adhesive sealant layer, and optionally a release liner, wherein the adhesive sealant layer includes at least one elastomer, at least one at 25° C. liquid polyolefin resin, and at least one inert mineral filler. An adhesive sealant composition is used to form the adhesive sealant layer. The sealant device may be used to waterproof a substrate and provide a fully-adhered roof system. The adhesive sealant composition may be used to provide a self-healing roofing membrane.

Self-adhering sealing device with an adhesive sealant layer

A sealing device including a waterproofing membrane, a sealant layer covering at least a portion of the second primary exterior surface of the waterproofing membrane and an adhesive layer covering a portion of the outer major surface of the sealant layer facing away from the second primary exterior surface of the waterproofing membrane, wherein the sealant layer is composed of an adhesive sealant composition comprising at least one elastomer, at least one at 25&#xb0; C. liquid polyolefin resin, and at least one inert mineral filler. A method produces a sealing device, a method waterproofs a substrate, and a waterproofed substrate.

A sealing device including a waterproofing layer, a functional layer, and a reinforcement layer fully embedded into the waterproofing layer or located between the waterproofing layer and the functional layer and/or a second waterproofing layer located on the outward facing side of the waterproofing layer opposite the side of the functional layer. Further, a method for producing a sealing device, to a method for waterproofing a substrate using one or more sealing devices, and to a roof system comprising a roof substrate and a sealing device directly adhered to the surface of the roof substrate with a layer of adhesive.

Roofing membrane with a functional layer

The present invention relates to a membrane comprising a bulkhead layer, wherein more than 50% by weight of the bulkhead layer is composed of PVC, and a barrier layer. The barrier layer can, on the one hand, be a barrier layer S1, wherein the barrier layer S1 has a polyvinyl alcohol layer comprising more than 50% by weight of copolymer PA, which is connected to the bulkhead layer by a polyurethane layer, wherein more than 10% by weight of the polyurethane layer is composed of polyurethane PUR. The barrier layer can, on the other hand, be a barrier layer S2, wherein the barrier layer S2 has a composition comprising 5-50% by weight of polyurethane PUR and 50-95% by weight of copolymer PA. The membranes according to the invention have significantly lower plasticizer migration compared to the membranes of the prior art and are distinguished by improved resistance to aging, particularly as regards the adherence of the barrier layer on the bulkhead layer, and imperviousness to damp.

PVC membrane with reduced plasticizer migration

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.

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Sarnen, Switzerland

Carine Kerber