公开(公告)号：DE3061027D1

公开(公告)日：1982-12-09

申请号：DE3061027

申请日：1980-04-01

Applicant: HOECHST AG

Inventor： BUSCH WOLFRAM ,  BRANDRUP JOHANNES DR ,  SOMMER WERNER ,  SEMMLER HORST DR

IPC: C08L23/00 ,  C08J3/00 ,  C08J3/12 ,  C08J3/20 ,  C08K3/20 ,  C08K3/34 ,  C08L1/00 ,  C08L23/26 ,  C08L23/28 ,  C08L27/00 ,  C08L27/06 ,  C08L101/00

Abstract: Free-flowing chloropolyethylene in powder form which keeps this property after prolonged storage and has good processing properties is impregnated substantially on the particle surface with definite amounts of fine-grained vinyl chloride polymer and fine-grained organic substance in a definite proportion. The invention also relates to a process for the manufacture of such an improved chloropolyethylene and the use thereof.

公开(公告)号：DE3260850D1

公开(公告)日：1984-11-08

申请号：DE3260850

申请日：1982-01-22

Applicant: HOECHST AG

Inventor： OHORODNIK ALEXANDER DR ,  KEUPER HANS WALTER DR ,  SEMMLER HORST DR ,  HARDEL JOACHIM ,  VIERLING HERMANN ,  WILLMS ROBERT

IPC: C08F8/00 ,  C08F6/24 ,  C08F8/20 ,  C08F8/22

Abstract: The disclosure relates to a process for making fine particulate, non-agglomerating chloropolyethylene by subjecting pulverulent polyethylene to a chlorination reaction in aqueous or aqueous/hydrochloric acid-suspension with chlorine gas at a temperature of about 20 DEG to 140 DEG C. in the presence of silicic acid and silicon oil, separating, washing and drying the chloropolyethylene. More particularly, the disclosure provides for the chlorination to be terminated and for the aqueous hydrochloric acid-suspension of chloropolyethylene to be then intensively mixed with an aqueous or aqueous/hydrochloric acid-dispersion having talc as well as an orthophosphoric acid mono- and/or diester or a polysiloxane by means of an emulsifier dispersed in it, and for the chloropolyethylene to be separated from the mixture, to be washed and dried.