公开(公告)号：ZA7900044B

公开(公告)日：1980-09-24

申请号：ZA7900044

申请日：1979-01-05

Applicant: HOECHST AG

Inventor： HEINE O ,  DIEDERICH B ,  BOEHM L

IPC: C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F4/60 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16 ,  C08L ,  C08J

CPC classification number: C08F210/16 ,  Y10S526/905 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/19 ,  C08F2500/26 ,  C08F210/08

公开(公告)号：ZA7944B

公开(公告)日：1980-09-24

申请号：ZA7944

申请日：1979-01-05

Applicant: HOECHST AG

Inventor： HEINE O ,  DIEDERICH B ,  BOEHM L

IPC: C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16 ,  C08J5/22 ,  C08L ,  C08J

Abstract: Copolymers of ethylene and higher 1-olefins which are suitable for the manufacture of thin films, are preferably prepared in a two-step process, the first step yielding a polymer having a high molecular weight, the second step giving a polymer having a low molecular weight. The films obtained from these copolymers have improved mechanical properties as compared to films manufactured from known corresponding raw materials. The mechanical properties are furthermore uniform in longitudinal and in transverse direction.