C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/5933, 18/794
C08K 5/06 (2006.01) C08J 5/18 (2006.01) C08K 3/00 (2006.01) C08L 23/02 (2006.01) C08L 71/02 (2006.01)
Patent
CA 1190686
ABSTRACT OF THE DISCLOSURE A non-volatile, anti-gel compound having a chain of at least about 5 repeat units of an alkylene oxide and which is soluble in olefin polymers, and an inorganic anti-block agent having a substantially neutral pH are added to a film grade Ziegler-Natta catalyzed olefin polymer composition to prevent: (1) gel streaking/pinstriping during film extrusion processes; (2) blocking of the extruded film; and (3) discoloration of the extruded film upon aging. The anti-gel compound has a molecular weight between about 200 and about 4,000,000 Daltons.
397842
Corwin Michael A.
Foster George N.
Hopley William G.
Union Carbide Corporation
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