| 摘要 |
Compositions comprising a synthetic organic polymer and, as stabilizer, a combination of A) a sterically hindered hydroxylamine, or an ether or ester thereof, and B) a compound containing an oxo and/or hydroxyl group bonded to a metal atom, show an excellent stability against the deleterious effects of light, oxygen and/or heat. A combination of components A and B is also effective to stabilize a polyolefin or olefin copolymer film for agricultural applications against deleterious effects of light, oxygen, heat and pesticides. The compositions may be prepared by a masterbatch technique. The use of an oxide, hydroxide, mixed oxide/hydroxide, zeolite or hydrotalcite as compound B) is shown.
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