公开(公告)号：US3468820A

公开(公告)日：1969-09-23

申请号：US51943966

申请日：1966-01-10

Applicant: BASF AG

Inventor： BUCHHOLZ KARL ,  STAHNECKER ERHARD ,  GROHMANN JOHANNES ,  MOELLER ROLF

IPC: C08F291/00 ,  C08J9/00 ,  C08J9/20 ,  C08F1/11 ,  C08F7/04 ,  C08F19/02

CPC classification number: C08J9/0061 ,  C08F291/00 ,  C08J9/20 ,  C08J2325/00 ,  C08J2457/00 ,  C08F212/08

公开(公告)号：US3658946A

公开(公告)日：1972-04-25

申请号：US3658946D

申请日：1969-05-08

Applicant: BASF AG

Inventor： BRONSTERT KLAUS ,  BUCHHOLZ KARL ,  ECHTE ADOLF ,  HOFMANN JUERGEN

IPC: C08F291/00 ,  C08F279/02 ,  C08F15/00

CPC classification number: C08F279/02 ,  C08F212/04

Abstract: PROCESS FOR THE PRODUCTION OF IMPACT-RESISTANT POLYMERS BY THE CONTINUOUS POLYMERIZATION OF A SOLUTION OF A DIENE ELASTOMER OR ELASTOMERIC COPOLYMER OF ETHYLENE AND PROPYLENE, THE STARTING MATERIALS BEING FIRST PARTIALLY POLYMERIZED TO SUCH AN EXTENT THAT THE SOLIDS CONTENT OF THE MIXTURE IS 1.1 TO 2 TIMES THE CONTENT OF DIENE ELASTOMER BUT NOT MORE THAN 16% BY WEIGHT, THEN INTRODUCED INTO AN ISOTHERMAL POLYMERIZATION STAGE WHERE A MIXTURE CONTAINING LESS THAN 50% BY WEIGHT OF SOLIDS IS PREPARED AT A TEMPERATURE OF FROM 50* TO 150*C. WHILE MIXING, WHICH MIXTURE IS TOTALLY POLYMERIZED IN THE DOWNSTREAM CONTINUOUS POLYMERIZATION STAGES AT A TEMPERATURE OF UP TO 250*C. TO GIVE A MIXTURE CONTAINING MORE THAN 60% BY WEIGHT OF SOLIDS, AND THEN FREED IN A CONVENTIONAL MANNER FROM VOLATILE CONSTITUENTS.

公开(公告)号：US3503905A

公开(公告)日：1970-03-31

申请号：US3503905D

申请日：1967-01-05

Applicant: BASF AG

Inventor： ZUERN LUDWIG ,  STAHNECKER ERHARD ,  GROHMANN JOHANNES ,  BUCHHOLZ KARL

IPC: C08J9/00 ,  C08F47/10 ,  C08F33/08

CPC classification number: C08J9/0019 ,  C08J9/0061 ,  C08J2325/02 ,  C08J2325/04 ,  C08J2415/00 ,  Y10S521/907