MULTI-LAYERED STRUCTURE FOR THE PRODUCTION OF A FLOOR COVERING WITH SOUND-INSULATING AND INDENTATION-RESISTANT PROPERTIES

摘要

The invention relates to a multi-layered structure (1) for the production of a floor or wall covering, the structure comprising:a first assembly (E) successively comprising at least:a transparent wear layer (E1) made of polyvinyl chloride;a decorative layer (E2) bonded to the wear layer (E1);a backing layer (E3), bonded to the decorative layer (E2), produced from plasticized and loaded polyvinyl chloride;a foam layer (2), bonded to the backing layer (E3), imparting sound-insulating properties to the structure, and having a lower side intended to be in contact with the floor or wall.;According to the invention:the first assembly (E) comprises a tensile modulus for 1% elongation greater than 5 MPa, and a flexural modulus at 3.5% between 10 MPa and 20 MPa, measured in accordance with ISO 178:2019 standard;the foam layer (2) is a cross-linked polyolefin foam layer, having a thickness between 0.5 mm and 2 mm, and a density between 60 kg/m3 and 120 kg/m3.