CRYSTALLINE β-FOLDED POLYPROPYLENES Russian patent published in 2008 - IPC C08K5/20 C08L23/10 

FIELD: organic chemistry, chemistry of polymers.

SUBSTANCE: invention relates to using compounds of the general formula (I): as an initiating agent in seed charge formation of β-form for polypropylene resin. Values of radicals R₁, R₂ and R₃ for compound of the general formula (I) are similar and mean (C₁-C₂₀)-alkyl, (C₅-C₁₂)-cycloalkyl, (C₅-C₁₂)-cycloalkyl substituted with 1, 2 or 3 groups of (C₁-C₁₀)-alkyl, cyclohexylmethyl, cyclohexylmethyl substituted with 1, 2 or 3 groups of (C₁-C₁₀)-alkyl, phenyl substituted with 1, 2 or 3 groups of (C₁-C₁₀)-alkyl or (C₇-C₉)-phenylalkyl. Films prepared by using compound of the formula (I) are characterized by the dullness value above 62% but preferably above 70% or 80% and the content of crystalline β-form above 15%. Also, invention disclosed monoaxial-oriented or biaxial-oriented films, fibers and multiplayer systems.

EFFECT: valuable properties of materials.

4 cl, 2 tbl, 8 ex