| 摘要 |
The invention relates to a process for the stabilisation of an organic phosphite, an organic phosphonite or a mixture of organic phosphites or phosphonites against hydrolysis, characterised in that a compound from the class consisting of sterically hindered amines is added as stabiliser to the material, so that the stabilised solid contains from 0.1 to 25% by weight of the aminic compound, based on phosphite or phosphonite. Compositions containing organic phosphite or phosphonite and sterically hindered amines are distinguished by excellent hydrolysis resistance and have a good shelf life even at high atmospheric humidity levels. The products from the novel process can advantageously be used as stabilisers for organic material, particularly organic polymers, for example synthetic polymers, against the harmful effect of heat, oxygen and/or light. |
