| 摘要 |
Organic polymers selected from the group consisting of polyolefins unsaturated elastomers copolymers of monoolefines and diolefines with other vinyl monomers polystyrene and copolymers thereof polymers which are derived from alpha , beta -unsaturated acids and derivatives thereof and copolymers of these monomers with other unsaturated monomers polymers derived from unsaturated alcohols and amines or derivatives thereof polyacetals polyamides and copolyamides are stabilized against thermooxidative deterioration by the addition of acylated hydroxy acid type compounds of the formula (I) <IMAGE> (I) Wherein the meanings of the substituents and symbols in formula (I) are as defined herein. |
