Waterproofing system
AssigneeSika Technology AG
InventorsDario Caviezel, Wolf-Rüdiger Huck, Herbert Ackermann
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Abstract
A waterproofing system including a functional layer S1 including 10-80 wt.-% of at least one thermoplastic polymer P1 and 10-80 wt.-% of at least one solid particulate filler F, wherein the surface of the functional layer S1 has an Auto-correlation length of waviness W(Sal) of at least 50 μm. Further, a method for producing a waterproofing system and to the use of a mechanical surface treatment step to increase the waviness factor, determined as the ratio of the Root mean square roughness of waviness W(Sq) to the square of the Auto-correlation length of waviness W(Sal), of a surface of a functional layer S1.
Claims13
A waterproofing system-membrane comprising a functional layer S1 having a first major surface and a second major surface, the functional layer S1 comprising:
- a) 10-80 wt.-%, of at least one thermoplastic polymer P1,
- b) 10-80 wt.-%, of at least one solid particulate filler F, said proportions being based on a total weight of the functional layer S1, wherein
- in the functional layer S1, the particles of the at least one solid particulate filler F are dispersed in a continuous thermoplastic phase comprising the at least one thermoplastic polymer P1, and wherein
- at least one of the first and second major surfaces of the functional layer S1 has an Auto-correlation length of waviness W(Sal) of at least 50 μm.
Dependencies are inferred from the claim text.