FILM Russian patent published in 2019 - IPC B32B27/32 C08L53/02 C08F293/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a film, wherein the outer layer comprises a polypropylene polymer, the intermediate layer comprising a polypropylene polymer and a hydrogenated block copolymer, and the inner layer includes a polypropylene polymer in which the hydrogenated block copolymer contains a polymer block which mainly contains a conjugated diene compound (C) in amount of 3 to 30 wt. %, polymer block, mainly containing conjugated diene compound (B) in amount of 69 to 93 wt. %, and polymer block, mainly containing vinyl aromatic compound (S) in amount of 1 to 20 wt. %, wherein polymer block (C) contains before hydrogenation from 10 to 25 mol. % of vinyl bonds, polymer block (B) contains before hydrogenation from 60 to 83 mol. % of vinyl bonds, and the hydrogenated block copolymer has degree of hydrogenation of 80 mol. % or more.

EFFECT: film has excellent transparency and elasticity and excellent balance of said properties.

13 cl, 6 tbl