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US 10,731,058 B2Granted
Peelable adhesive composition
AssigneeBostik SA
InventorsJessie Casimiro, Eric Verscheure
Life of this patent
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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.
Claims16
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) observing a gumming time ranging from 10 to 30 minutes
- c) displaying a flexible surface coating on the substrate by contacting the flexible surface coating with the adhesive layer on the surface of the substrate,
- wherein said 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, wherein the amount of applied adhesive composition is greater than or equal to 200 g/m2, and
- wherein said substrate and said flexible surface coating, after pulling off, are both capable of being recovered without any adhesive residues after removal of the peelable film or membrane obtained after drying of the peelable adhesive composition.
7 more elements
A method for applying a flexible surface coating on a substrate consisting of the successive steps:
- a) applying a weft or a non-woven reinforcing strip onto the substrate
- b) applying a peelable adhesive composition layer on a surface of the substrate,
- c) observing a gumming time ranging from 10 to 30 minutes,
- d) displaying the flexible surface coating on the substrate by contacting the flexible surface coating with the adhesive layer on the surface of the substrate,
- wherein said 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, wherein the amount of applied adhesive composition is greater than or equal to 200 g/m2, and wherein
- said substrate and said flexible surface coating, after pulling off, are both capable of being recovered without any adhesive residues after removal of the peelable film or membrane obtained after drying of the peelable adhesive composition.
8 more elements
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) observing a gumming time ranging from 10 to 30 minutes,
- c) displaying the flexible surface coating on the substrate by contacting the flexible surface coating with the adhesive layer on the surface of the substrate, and
- d) smoothing the adhesive composition under the flexible surface coating,
- wherein said 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, wherein the amount of applied adhesive composition is greater than or equal to 200 g/m2, and wherein
- said substrate and said flexible surface coating, after pulling off, are both capable of being recovered without any adhesive residues after removal of the peelable film or membrane obtained after drying of the peelable adhesive composition.
8 more elements
Dependencies are inferred from the claim text.