C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 251/86 (2006.01) C08K 5/30 (2006.01) C08L 23/02 (2006.01)
Patent
CA 2131529
2131529 9320043 PCTABS00027 Disclosed are a class of phenolic-hydrazide compounds of structure (I) and (II) which are useful as stabilizers for polyolefins. The phenolic-hydrazide compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin. In formula (I) and (II) A is hydrogen or a group having formula (a); B is a group having formula (b), (c), (d) or (e); L is a divalent, trivalent or tetravalent hydrocarbon radical having up to about 12 carbon atoms.
Jervis Daniel A.
Shang Ping P.
Wang Richard H.
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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