Mixtures of hals compounds

Details Mixtures of hals compounds Mixtures of hals compounds

C - Chemistry, Metallurgy

08

K

C08K 5/3435 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2077545

A composition, suitable for stabilising a polymeric composition against the effects of light, comprising: a) an N-acylated 2,2,6,6-tetraalkylpiperidinyl group (hereinafter N-acylated HALS) containing compound; and b) an N-oxy-subst. 2,2,6,6-tetraal- kylpiperidinyl group (hereinafter N-oxy-subst. HALS) containing compound. A further aspect of the invention relates to a com- position, suitable for stabilising a polymeric composition against the effects of light comprising: a) an N-acylated 2,2,6,6-tetraal- kylpiperidinyl-group-containing compound in which a spiro group is attached in the 4-position (hereinafter defined as compo- nent i); and b) an N-acylated 2,2,6,6-tetraalkylpiperidinyl-group-containing compound in which in the 4-position no spiro group is present (hereinafter defined as component ii). The compounds are suitable as light stabilizers in acid catalyzed lacquer system.

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