Dialkyl peroxide composition for modifying the rheology of polypropylene in molten state
AssigneeArkema France
InventorsPhilippe Maj, Martin Möllers, Isabelle Tartarin
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Abstract
The present invention relates to a liquid composition comprising at least one dialkyl peroxide, in liquid form at ambient temperature, at a content comprised within a range of from 75 to 77% by weight relative to the total weight of the composition, and at least one mineral oil with viscosity greater than 15 mPa·s, measured at a temperature of 10° C. and at a shear rate of 1000 s−1. Furthermore, the invention relates to the use of said composition to modify the melt rheology of the polypropylene.
Claims12
A liquid composition comprising at least one dialkyl peroxide, in liquid form at ambient temperature, with a content greater than 72% by weight and strictly less than 80% by weight, relative to the total weight of the composition, and at least one mineral oil with viscosity greater than 15 mPa·s, measured at a temperature of 10° C. and a shear rate of 1000 s−1.
A method of decreasing the explosion intensity of a composition comprising at least one dialkyl peroxide in a content strictly greater than 70% by weight, relative to the total weight of the composition, comprising introducing at least one mineral oil with viscosity greater than 15 mPa·s, measured at a temperature of 10° C. and at a shear rate of 1000 s−1.
Dependencies are inferred from the claim text.