Rigid panel for making a floor covering
AssigneeGerflor
InventorChristian Esbelin
Life of this patent
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Abstract
The disclosure relates to a multilayer panel for producing a floor covering, comprising a wear layer bonded to a back layer, said back layer being made up of at least a thermoplastic material, a plasticizer and fillers, the wear layer comprising a surface layer made up at least of PVC, said surface layer having a Shore D hardness greater than or equal to 60 and a Young's modulus greater than or equal to 1000 MPa.
Claims20
A rigid multilayer panel for making a floor covering comprising, a wear layer bonded to a back layer, wherein the back layer comprises a face configured to be in contact with a floor and being free of glue, wherein the multilayer panel has edges, and the edges of the multilayer panel have male-female assembly means configured to connect several multilayer panels to one another,
- wherein the back layer comprises a first back layer made from plasticized and filled flexible PVC, and a balancing layer arranged in an upper part of the back layer, the balancing layer is made up at least of PVC obtained from a composition comprising a proportion of liquid plasticizer of less than 15% by weight of the balancing layer, the balancing layer is bonded to the wear layer, and the balancing layer has a Shore D hardness greater than or equal to 50 and a Young's modulus greater than or equal to 500 MPa,
- wherein the wear layer comprises a surface layer derived from at least polyvinyl chloride (PVC), the surface layer having:
- a Shore D hardness greater than or equal to 60,
- a Young's modulus greater than or equal to 1000 MPa, and
- a glass transition temperature (Tg) between 60° C. and 80° C.
A rigid multilayer panel for making a floor covering comprising, a wear layer bonded to a back layer, wherein the back layer comprises a face configured to be in contact with a floor and being free of glue, wherein the multilayer panel has edges, and the edges of the multilayer panel have male-female assembly means configured to connect several multilayer panels to one another,
- wherein the back layer comprises a first back layer made from plasticized and filled flexible PVC, and a balancing layer arranged in an upper part of the back layer, the balancing layer is made up at least of PVC obtained from a composition comprising a proportion of liquid plasticizer of less than 15% by weight of the balancing layer, the balancing layer is bonded to the wear layer, and the balancing layer has a Shore D hardness greater than or equal to 50 and a Young's modulus greater than or equal to 500 MPa,
- wherein the wear layer comprises a surface layer derived from at least polyvinyl chloride (PVC), the surface layer having:
- a Shore D hardness greater than or equal to 60,
- a Young's modulus greater than or equal to 1000 MPa,
- a glass transition temperature (Tg) between 60° C. and 80° C.,
- a liquid plasticizer present in an amount of less than 10%, by weight of the surface layer.
A rigid multilayer panel for making a floor covering comprising, a wear layer bonded to a back layer, wherein the back layer comprises a face configured to be in contact with a floor and being free of glue, wherein the multilayer panel has edges, and the edges of the multilayer panel have male-female assembly means configured to connect several multilayer panels to one another,
- wherein the back layer comprises a first back layer made from plasticized and filled flexible PVC, and a balancing layer arranged in an upper part of the back layer, the balancing layer is made up at least of PVC obtained from a composition comprising a proportion of liquid plasticizer of less than 15% by weight of the balancing layer, the balancing layer is bonded to the wear layer, and the balancing layer has a Shore D hardness greater than or equal to 50 and a Young's modulus greater than or equal to 500 MPa,
- wherein the wear layer comprises a surface layer derived from at least polyvinyl chloride (PVC), the surface layer having:
- a Shore D hardness greater than or equal to 60,
- a Young's modulus greater than or equal to 1000 MPa,
- a glass transition temperature (Tg) between 60° C. and 80° C.,
- a liquid plasticizer present in an amount from 1% to 10%, by weight of the surface layer.
Dependencies are inferred from the claim text.