Uncoupling Mat

Abstract

An uncoupling mat includes a flexible plastic layer having indentations provided with undercuts on a first, top side and cavities positioned between the indentations on an opposite bottom side. A fleece or fabric is securely connected to the second side and covering the cavities. A plurality of weakening zones is formed in the top surface of the film-like plastic, which each extend between two rows of indentations in a straight line between opposing side edges of the plastic layer and allow the plastic layer to move substantially transversely to the direction of extension of the weakening zones. Some of a first group of weakening zones extend parallel to one another across the top surface of the film-like plastic. Some of a second group of weakening zones extend parallel to one another across the top surface of the film-like plastic and intersecting the first group of parallel weakening zones.

1 . An uncoupling mat, comprising:
 a flexible plastic layer made of a film-like plastic with structuring extending down from a top surface of the film-like plastic that define indentations provided with undercuts on a first, top side and cavities positioned between the indentations on an opposite second, bottom side;   a fleece or fabric securely connected to the second side and covering the cavities;   the plastic layer including a plurality of weakening zones formed in the top surface of the film-like plastic, which each extend between two rows of indentations in a straight line between opposing side edges of the plastic layer and allow the plastic layer to move substantially transversely to the direction of extension of the weakening zones;   at least some of a first group of weakening zones extend parallel to one another across the top surface of the film-like plastic; and   at least some of a second group of weakening zones extend parallel to one another across the top surface of the film-like plastic, the second group of parallel weakening zones intersecting the first group of parallel weakening zones.   
     
     
         2 . The uncoupling mat according to  claim 1 , wherein the weakening zones comprise grooves. 
     
     
         3 . The uncoupling mat according to  claim 1 , wherein the at least some of the first group of weakening zones extend transversely to a longitudinal direction of the uncoupling mat. 
     
     
         4 . The uncoupling mat according to  claim 3 , wherein the at least some of the second group of weakening zones cross the first group of parallel weakening zones at right angles. 
     
     
         5 . The uncoupling mat according to  claim 1 , wherein the cavities cross one another and define a grid- or net-like arrangement. 
     
     
         6 . The uncoupling mat according to  claim 5 , wherein the mat includes 100 to 3000 cavities per square meter. 
     
     
         7 . The uncoupling mat according to  claim 1 , wherein the indentations cross one another and define a grid- or net-like arrangement. 
     
     
         8 . An uncoupling mat, comprising:
 a flexible plastic layer made of a film-like plastic with structuring extending down from a top surface of the film-like plastic that define indentations provided with undercuts on a first, top side and cavities positioned between the indentations on an opposite second, bottom side, the indentations arranged to define a grid- or net-like arrangement;   the plastic layer including a plurality of weakening zones formed in the top surface of the film-like plastic, which each extend between two rows of indentations to allow the plastic layer to move substantially transversely to the direction of extension of the weakening zones;   at least some of a first group of weakening zones extend parallel to one another across the top surface of the film-like plastic; and   at least some of a second group of weakening zones extend parallel to one another across the top surface of the film-like plastic to form a grid- or net-like arrangement with the first group of weakening zones.   
     
     
         9 . The uncoupling mat according to  claim 8 , further comprising a fleece or fabric securely connected to the second side and covering the cavities. 
     
     
         10 . The uncoupling mat according to  claim 8 , wherein the weakening zones comprise grooves. 
     
     
         11 . The uncoupling mat according to  claim 8 , wherein the at least some of the first group of weakening zones extend transversely to a longitudinal direction of the uncoupling mat. 
     
     
         12 . The uncoupling mat according to  claim 11 , wherein the at least some of the second group of weakening zones cross the first group of parallel weakening zones at right angles.