公开(公告)号：ZA824318B

公开(公告)日：1983-04-27

申请号：ZA824318

申请日：1982-06-18

Applicant: HOECHST AG

Inventor： DIEDRICH B ,  FRANKE R ,  HARTLAPP J ,  SCHAEFER W ,  STROBEL W

IPC: C08F4/00 ,  C08F4/44 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00 ,  C08F

公开(公告)号：DK141584C

公开(公告)日：1980-10-06

申请号：DK366676

申请日：1976-08-13

Applicant: HOECHST AG

Inventor： LEDERER M ,  STROBEL W

IPC: C08F4/00 ,  C08F2/16 ,  C08F4/28 ,  C08F255/00 ,  C08F255/04 ,  C08F255/06

Abstract: There is disclosed an improved bulk-suspension process for polymerizing vinyl aromatic monomers in the presence of an ethylene-propylene-nonconjugated diene-rubber, which comprises using, in the suspension polymerization step, peroxy-carbonic esters as the polymerization initiator. The process of the invention yields products having improved notched impact strength, weatherability and elongation at break combined with a good shear stability.

公开(公告)号：DK91275A

公开(公告)日：1975-09-08

申请号：DK91275

申请日：1975-03-06

Applicant: HOECHST AG

Inventor： LEDERER M ,  STROBEL W ,  JASTROW H

IPC: C08F255/00 ,  C08F255/04 ,  C08F255/06 ,  C08F283/12 ,  C08F291/00 ,  C08F

Abstract: The invention relates to novel impact resistant graft copolymers of a vinyl aromatic on an ethylene/propylene/tercomponent rubber especially characterized by an improved notched impact strength and resistance to atmospheric corrosion, and a process for their preparation. Said copolymers are obtained by a two-step mass/suspension polymerization process characterized by the presence of oxygen, preferably by the presence of air, at a pressure of from 0.05 to 10 atmospheres gauge during the course of the mass polymerization step.