C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/9438
C08K 5/00 (2006.01) C08K 5/1575 (2006.01) C08K 5/378 (2006.01) C08L 23/02 (2006.01)
Patent
CA 1276366
Abstract Polyolefin compositions comprising 100 to 35 wt.% of a polyolefin and 0 to 65 wt.% of an inorganic filler are stabilized against deterioration caused by contact with heavy metals by addition of: (A) 0.01 to 1 part by weight of a phenolic compound repre- sented by the formula (I), Image (I) wherein R1 represents a C1-C3 alkyl group, (B) 0.01 to 10 parts by weight of a metal deactivator having one or more Image groups in the side chain, and (C) 0.01 to 1 part by weight of a sulfur-containing compound represented by the formula (II-1), (II-2), (II-3) or (II-4): Image (II-1) wherein R2 represents a C4-C20 alkyl group, Image (II-2) wherein R3 represents a C4-C20 alkyl group, Image (II-3) wherein R4 represents a C3-C18 alkyl group, and R5 and R6 independently represent a hydrogen atom or a C1-C6 alkyl group, Image (II-4) wherein R7 represents a C3-C18 alkyl group, per 100 parts by weight of the polyolefin composition. The invention provides a polyolefin composition which has stability against deterioration caused by contact with heavy metals. The invention also provides improved coloration properties to polyolefins.
521963
Fukui Yoshiharu
Ishii Tamaki
Kuroda Kazuhisa
Sasaki Manji
Ridout & Maybee Llp
Sumitomo Chemical Company Limited
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