MULTILAYER COMPOSITE MATERIAL Russian patent published in 2010 - IPC C08L27/12 C08L27/02 B32B27/06 B32B27/08 B32B27/32 B32B27/36 

FIELD: chemistry.

SUBSTANCE: material contains an inner layer I, selected from fluoropolymer moulding compound and polyolefin moulding compound. Further, an intermediate layer II is placed, where said layer is made from: a) 2-80 pts. wt polyamine-polyamide graft copolymer; b) 0-85 pts. wt polyether selected from polyethyleneterephthalate, polypropyleneterephthalate, polybutyleneterephthalate, polyethylene-2,6-naphthalate, polypropylene-2,6-naphthalate and polybutylene-2,6-naphthalate; c) 0-85 pts. wt polymers selected from polyamides, fluoropolymers and polyolefins and d) at most 50 pts. wt additive selected from shock resistant rubber and/or conventional auxiliary substances and fillers. Component a) is obtained using the following monomers: 0.5-25 wt % polyamine graft copolymer containing at least four nitrogen atoms, as well as polyamide-forming monomers selected from lactams, ω-aminocarboxylic acids and/or equimolar combinations of diamine and dicarboxylic acid. The sum of weight parts of a), b) and c) equals 100. Layer III made form polyether moulding compound then follows.

EFFECT: obtained material has higher bonding strength of layers.

15 cl, 7 ex