Method of modifying polyolefin with diorganopolysiloxane...

Details Method of modifying polyolefin with diorganopolysiloxane... Method of modifying polyolefin with diorganopolysiloxane...

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) C08J 3/20 (2006.01) C08J 5/18 (2006.01) C08L 23/08 (2006.01) C08L 83/06 (2006.01) C08L 83/07 (2006.01)

Patent

CA 2166454

There is disclosed a polyolefin composition which can be extruded at relatively high rates to provide extrudate having a low surface roughness (sharkskin), said composition comprising (A) 100 parts by weight of a polyolefin resin; and (B) 0.01 to 1 part by weight of a hydroxy-functional diorganopolysiloxane process aid, said diorganopolysiloxane having a number average molecular weight of at least 10,000. In particularly preferred embodiments, a hydroxy-functional diorganopolysiloxane in combination with a low density polyethylene is used as a process aid for linear low density polyethylene.

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