ACRYLIC FILM, METHOD OF ITS MANUFACTURE AND DECORATIVE SHEET MADE FROM IT Russian patent published in 2023 - IPC C08J5/18 C08F2/22 C08F2/26 C08F220/18 C08F265/06 C08F285/00 

FIELD: acrylic films.

SUBSTANCE: group of inventions relates to acrylic film, method of its production and decorative sheet made from it. Acrylic film is obtained by melt extrusion of only one acrylic copolymer having a three-layer structure. At the same time, in the acrylic copolymer, the inner layer includes an inner layer copolymer polymerized from the composition of the inner layer, including an acrylate monomer, a crosslinker, a grafting reaction agent and an initiator, the intermediate layer includes an intermediate layer copolymer polymerized from an intermediate layer composition, including an acrylate monomer, a methacrylate monomer, the initiator, the grafting reaction agent and the crosslinker, and the outer layer comprises an outer layer copolymer polymerized from an outer layer composition comprising an acrylate monomer, a methacrylate monomer, a chain transfer agent and an initiator. A method for producing an acrylic film and a decorative sheet including an acrylic film are also described.

EFFECT: providing an acrylic film characterized by good optical properties, surface smoothness and absence of whitening, long-term stability of optical properties and durability.

10 cl, 1 tbl, 8 ex