High-density polyethylene (HDPE) which experiences a reduction in molecular weight during processing and is obtainable by means of catalysts of the Ziegler-Natta type can be stabilized against thermo-oxidative degradation by addition of a combination of a sterically hindered phenol and an organic phosphite or phosphonite and calcium oxide.
申请公布号
WO9525767(A1)
申请公布日期
1995.09.28
申请号
WO1995EP00897
申请日期
1995.03.10
申请人
CIBA-GEIGY AG;HOFFMANN, KURT;HERBST, HEINZ;PFAENDNER, RUDOLF
