COMPOSITION OF AT LEAST ONE VINYLIDENE CHLORIDE POLYMER Russian patent published in 2012 - IPC C08L27/08 C08J5/18 

FIELD: chemistry.

SUBSTANCE: invention relates to a vinylidene chloride polymer composition for making packaging film. The vinylidene polymer composition for making packaging film contains at least one vinylidene chloride polymer which is a vinylidene chloride homopolymer or copolymer; at least one e-caprolactone polymer from which at least one is characterised by that its molecular weight is less than or equal to 10000 g/mol; epoxidated soya bean oil; where the vinylidene chloride copolymer contains vinylidene chloride as the basic monomer and at least one comonomer selected from a group comprising vinyl chloride, vinyl esters, vinyl ethers, esters and amides of acrylic acids, esters and amides of methacrylic acids, acrylonitrile, methacrylonitrile, styrene, styrene derivatives, butadiene, olefins, such as, for example, ethylene and propylene, itaconic acid, maleic anhydride, 2-acrylamido-2-methylpropane sulphonic acid or one of salts thereof, phosphate ester of polypropylene glycol with terminal methacrylate groups. The invention also relates to a method of preparing the composition, which involves mixing the starting components; a method of making articles from films, foil, sheets, single- or multiple-layer films, or objects obtained by moulding, which involves extrusion of said composition.

EFFECT: obtaining a film with high thermal stability, improved oxygen and carbon dioxide barrier properties with prolonged effect.

16 cl, 4 tbl