1-Hydroxy-2,6-diaryl-4-piperidone ketal derivatives of formulae I-III are novel compounds and are effective process stabilizers for polymers processed at elevated temperatures providing both good melt flow stabilization and good resistance against discoloration during said processing.
式 I-III 的 1-羟基-2,6-二芳基-
4-哌啶酮缩酮衍
生物是一种新型化合物,是一种有效的加工稳定剂,适用于在高温下加工的聚合物,在上述加工过程中既能提供良好的熔体流动稳定性,又能防止变色。