Construction sector membrane

Abstract

The invention relates to a construction sector membrane ( 1 ) with at least one outer fibrous nonwoven web layer ( 2 ) constructed to produce a bond with an applied material such as mortar, concrete or an adhesive. To achieve good adhesion of the membrane ( 1 ) in concrete, mortar or an adhesive, the invention provides that the fibrous nonwoven web layer ( 2 ) is at least regionally hydrophilic

1 .- 15 . (canceled) 
   
   
       16 . A construction sector membrane comprising at least one outer fibrous non-woven web layer constructed to produce a bond with an applied material, wherein the fibrous nonwoven web layer is at least regionally hydrophilic. 
   
   
       17 . The construction sector membrane according to  claim 16 , wherein the fibrous nonwoven web layer comprises synthetic fibers of polyolefins. 
   
   
       18 . The construction sector membrane according to  claim 16 , wherein the membrane is configured for use with concrete, mortar or adhesive. 
   
   
       19 . The construction sector membrane according to  claim 16 , wherein the fibrous nonwoven web layer is only hydrophilic over part of its layer thickness. 
   
   
       20 . The construction sector membrane according to  claim 16 , wherein merely an outer, near-surface region of the fibrous nonwoven web layer is hydrophilic. 
   
   
       21 . The construction sector membrane according to  claim 16 , wherein 20 to 80% of the layer thickness is hydrophilic. 
   
   
       22 . The construction sector membrane according to  claim 16 , wherein the fibrous nonwoven web layer is only hydrophilic over part of its surface. 
   
   
       23 . The construction sector membrane according to  claim 16 , wherein only some fibers of the fibrous nonwoven web layer are hydrophilic. 
   
   
       24 . The construction sector membrane according to  claim 16 , wherein between 20 and 80% of the surface of the fibrous nonwoven web layer is hydrophilic. 
   
   
       25 . The construction sector membrane according to  claim 16 , wherein fibers of the fibrous nonwoven web layer are hydrophilicized in the course of fiber production by addition of at least one hydrophilicizing additive. 
   
   
       26 . The construction sector membrane according to  claim 16 , wherein fibers of the fibrous nonwoven web layer or the fibrous nonwoven web layer are hydrophilicized during or after production by outer application of at least one hydrophilicizing agent. 
   
   
       27 . The construction sector membrane according to  claim 16 , wherein fibers of the fibrous nonwoven web layer or the fibrous nonwoven web layer are hydrophilicized by chemical and/or physical treatment. 
   
   
       28 . The construction sector membrane according to  claim 16 , wherein the membrane comprises at least one further layer. 
   
   
       29 . The construction sector membrane according to  claim 16 , wherein the membrane is constructed as a sealing membrane, as a decoupling membrane, as a drainage membrane or as flashing or waterstop tape. 
   
   
       30 . The construction sector membrane according to  claim 16 , wherein the membrane is constructed as wall covering or as panel heating. 
   
   
       31 . The construction sector membrane according to  claim 17 , wherein the synthetic fibers comprise polypropylene. 
   
   
       32 . The construction sector membrane according to  claim 18 , wherein the adhesive comprises dispersion or other adhesives comprising hydraulic binders. 
   
   
       33 . The construction sector membrane according to  claim 20 , wherein 40 to 60% of the layer thickness is hydrophilic. 
   
   
       34 . The construction sector membrane according to  claim 24 , wherein between 40 and 60% of the surface of the fibrous nonwoven web layer is hydrophilic.