PARTIALLY CRYSTALLINE POLYOLEFINIC COMPOSITION AND METHOD OR PREPARATION THEREOF Russian patent published in 1998 - IPC

FIELD: chemistry of polymers. SUBSTANCE: claimed composition comprises, wt. -%: statistical propene-alpha-olefin copolymer (fraction A) containing 1 to 10% alpha-$$$ olefin, 20-60; statistical propene-alpha-$$$ olefin (fraction B) containing 15 to 40% alpha-$$$ olefin, 40-80; said olefin is the same or different from olefin present in fraction A wherein wt.-% of fraction B (% B) with respect to total composition and wt % of alpha-$$$ olefin in fraction B ($$$) satisfy the following relationship: $$$. EFFECT: improved properties of the composition. 4 cl