Peelable adhesive composition
AssigneeBostik SA
InventorsJessie Casimiro, Eric Verscheure
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Abstract
The invention relates to an adhesive composition comprising at least one natural latex and at least one polymeric composition having a glass transition temperature ranging from −50° C. to 0° C. The invention also relates to a membrane obtained after drying the adhesive composition according to the invention, to a combination of a flexible surface coating with an adhesive composition according to the invention, to a method for applying a flexible surface coating onto a substrate as well as a substrate coated with a peelable adhesive membrane according to the invention.
Claims13
A method for applying a flexible surface coating on a substrate consisting of the successive steps:
- a) applying a peelable adhesive composition layer on a surface of the substrate,
- b) drying the peelable adhesive composition to obtain a membrane,
- c) applying a second adhesive composition, onto the membrane,
- d) observing a gumming time ranging from 10 to 30 minutes,
- e) displaying the flexible coating on the substrate by contacting the flexible surface coating with the adhesive layer on the surface of the substrate,
- wherein said peelable adhesive composition comprises:
- i) from 10% to 40% by weight of at least one natural latex,
- ii) from 10% to 40% by weight of dry material based on the total weight of the adhesive composition, of at least one polymeric composition having a glass transition temperature ranging from −50° C. to 0° C., said polymeric composition comprising:
- (1) a terpolymer of vinyl acetate, of ethylene and of acrylate and a mixture of polyester and polyurethane, and/or
- (2) a terpolymer of vinyl acetate, of ethylene and of acrylate,
- iii) from 10% to 40% by weight based on the total weight of the adhesive composition, of at least one filler having an apparent density ranging from 1.30 to 1.70,
- said substrate being capable of being recovered without any adhesive residues after removal of the peelable film or membrane obtained after drying of the peelable adhesive composition.
Dependencies are inferred from the claim text.