Patent ID: 11938704
Assignee: BANFERT NEW MATERIALS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C  E | IPC B  C  E

Claim 0:
1. A method for preparing a composite material containing a PVC pre-coating film, comprising the following steps:
preparing the PVC pre-coating film by utilizing a PVC transparent film layer and a radiation-cured coating;
performing a high-temperature press fit process on the PVC pre-coating film, a substrate material and a printed decorative layer; and
performing cooling and forming treatment to obtain the composite material containing the PVC pre-coating film;
wherein the radiation-cured coating comprises an adhesive primer layer, an elastic primer layer and a top coating layer sequentially from bottom to top;
wherein preparation raw materials of the adhesive primer layer comprise 2 to 10 parts of bifunctional polyurethane acrylic resins (C), 0 to 5 parts of vinyl chloride-vinyl acetate resins, 30 to 40 parts of bifunctional acrylate monomers (C), 30 to 50 parts of solvents and 0 to 1 part of an initiator (C);
wherein preparation raw materials of the elastic primer layer comprise 30 to 60 parts of bifunctional polyurethane acrylic resins (C), 20 to 40 parts of bifunctional acrylate monomers (C), 10 to 15 parts of monofunctional acrylate (C) and 0 to 5 parts of initiators (C).