LOW MOLECULAR WEIGHT ETHYLENE COPOLYMERS, SYNTHESIS METHODS AND USE THEREOF Russian patent published in 2011 - IPC C08F210/02 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions of ethylene copolymers. The invention discloses versions of ethylene copolymer-based compositions, versions of articles made from disclosed copolymers and a method of functionalising one or more polymers in an ethylene copolymer-based composition. The disclosed compositions contain two or more copolymers or fractions of ethylene copolymers and at least one comonomer selected from C₃-C₁₀ α-olefins, C₄-C₈ dienes, styrene, possibly substituted tetrafluoroethylene or C₅-C₈ cycloalkenes. The compositions are characterised by melt viscosity and ratio of vinyl groups to total terminal unsaturations of at least one copolymer.

EFFECT: disclosed compositions have ratio of viscosity to crystallinity which is optimum for use in coatings and adhesives, and functionalised polyethylenes have better adhesion owing to ratio of viscosity, crystallinity and vinyl content.

36 cl, 11 dwg, 13 tbl