POLYOLEFIN FILM FOR PACKAGING Russian patent published in 2017 - IPC C08J9/00 C08J5/18 C08L23/00 C08L23/10 C08K7/00 B29C55/02 

FIELD: packaging industry.

SUBSTANCE: film comprises a thermoplastic composition that contains a continuous phase comprising a polyolefin matrix polymer and a nano-additive. The nano-additive is dispersed in the continuous phase in the form of discrete domains. A porous network is defined in the composition, which includes nanopores with an average cross-sectional dimension of up to 800 nm. The composition further comprises a micro-inclusion additive dispersed in the continuous phase in the form of discrete domains. The micro-inclusion additive is a polymer.

EFFECT: reduction in application of polymers in films production while maintaining the mechanical properties of the film, such as ductility or tensile strength.

38 cl, 3 dwg, 1 tbl, 8 ex