FIELD: chemistry.
SUBSTANCE: invention relates to polyethylene mixed compositions, intended for film manufacturing, which include two or more different ethylene polymers, each of which has different degree of complexity of long chain branching. Polyethylene composition is practically linear and has average index of branching constituting 0.85 or less. In addition, composition has density 0.935 g/cm3 or less, dullness - 10% or less and stability to falling load impact - 100g/mm or more, determined according to ASTM D-1709 methodology.
EFFECT: polyethylene compositions possess definite combination of required properties and characteristics, good optic properties and strengthening characteristics.
15 cl, 1 dwg, 5 tbl, 5 ex
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Authors
Dates
2009-07-10—Published
2004-09-20—Filed