Peelable adhesive composition

Abstract

The invention also relates to a membrane obtained after drying of the adhesive composition according to the invention, a combination of a flexible surface covering with an adhesive composition according to the invention, a method of application of a flexible surface covering onto a substrate as well as a substrate covered with a peelable adhesive membrane according to the invention.

1 - 15 . (canceled) 
     
     
         16 . A method of application of a flexible surface covering onto a substrate, comprising:
 a) applying a layer of an adhesive composition onto the substrate,   b) adhering the flexible covering onto the substrate, said adhesive composition comprising:
 (a) 30% to 45% by weight of dry matter with respect to the total weight of the adhesive composition, of at least one natural latex, 
 (b) 5% to 40% by weight of dry matter with respect to the total weight of the adhesive composition of at least one polymer composition having a glass transition temperature of −50° C. to 0° C., said polymer composition comprising:
 i) at least one copolymer or a mixture of at least two polymers comprising at least one (meth)acrylate or (meth)acrylic monomer, and/or 
 ii) at least one mixture of at least two polymers comprising at least one polyester and at least one polyurethane, and/or 
 iii) at least one vinyl acetate and ethylene copolymer, 
 
 (c) 5% to 40% by weight with respect to the total weight of the adhesive composition of at least one filler. 
   
     
     
         17 . The method of application according to  claim 16 , wherein
 a) the latex represents from 30% to 40% by weight of dry matter with respect to the total weight of the adhesive composition, and/or   b) the polymer composition represents from 6% to 25% by weight of dry matter with respect to the total weight of the adhesive composition, and/or   c) the filler(s) represent(s) from 15% to 35% by weight of the total weight of the composition.   
     
     
         18 . The method of application according to  claim 16 , wherein the filler and/or the mixture of fillers has an apparent density ranging from 0.60 to 1.80. 
     
     
         19 . The method of application according to  claim 16 , wherein the filler and/or the mixture of filler has an apparent density ranging from 1.30 to 1.70. 
     
     
         20 . The method of application according to  claim 16 , wherein the filler is a mineral filler. 
     
     
         21 . The method of application according to  claim 16 , wherein the polymer composition has a glass transition temperature of −40° C. to −10° C. 
     
     
         22 . The method of application according to  claim 16 , wherein the polymer composition is a vinyl acetate, ethylene and acrylate terpolymer. 
     
     
         23 . The method of application according to  claim 16 , wherein the polymer composition comprises a vinyl acetate, ethylene and acrylate terpolymer and a mixture of polyester and of polyurethane. 
     
     
         24 . The method of application according to  claim 16 , wherein the polymer composition further comprises fibers. 
     
     
         25 . The method of application according to  claim 16 , wherein the flexible covering is a covering having a maximum dimensional variability measured according to the Freudenberg test greater than or equal to 0.2%. 
     
     
         26 . The method of application according to  claim 16 , wherein the quantity of adhesive composition applied is greater than or equal to 200 g/m 2 . 
     
     
         27 . The method of application according to  claim 16 , comprising before a), applying a weft or a woven or non-woven reinforcing tape onto the substrate. 
     
     
         28 . The method of application according to  claim 25 , comprising holding the flexible surface covering having a maximum dimensional variability measured according to the Freudenberg test greater than or equal to 0.2%. 
     
     
         29 . A method for renovating a substrate coated with a peelable adhesive film, obtained after drying of the adhesive composition according to  claim 16 , and with a flexible surface covering, said method comprising lifting the flexible surface covering.