MULTILAYER MATERIAL FROM FLUORINE-CONTAINING RESIN Russian patent published in 2011 - IPC B32B27/30 B32B27/32 B32B27/34 B32B27/36 B32B27/40 B32B27/28 

FIELD: process engineering.

SUBSTANCE: invention relates to multilayer material used in production of laminated moulded articles. Multilayer material comprises laminar material produced by gluing layer (I) and layer (II) together. Layer (I) consists of fluorine-containing resin with functional groups that represent acid residue. Layer (II) consists of thermoplastic resin with functional groups representing amino group, hydroxyl group or epoxy group. Functional groups of thermoplastic resin can form chemical bonding with functional groups of fluorine-containing resin. Fluorine-containing resin features low fusion point of 120-230°C. It is selected from the group consisting of copolymer of ethylene/tetra fluorine ethylene, copolymer of ethylene/tetra fluorine ethylene/hexa fluorine propylene and copolymer of ethylene/tetra fluorine ethylene/hexa fluorine propylene/CH₂=CH-Rf, where Rf is C_2-6perfluoroalkyl group. Thermoplastic resin (B) is selected from the group consisting of thermoplastic resins based on polyurethane, complex polyether, polyolefin, polyvinyl acetate, polyvinyl chloride and polystyrene. Multilayer material is produced by gluing at heating, multilayer extruding, multilayer moulding or moulding with multilayer lamination.

EFFECT: high-adhesion laminar material, high process efficiency.

7 cl, 1 tbl, 20 ex