公开(公告)号：US3781257A

公开(公告)日：1973-12-25

申请号：US3781257D

申请日：1971-12-02

Applicant: BAYER AG

Inventor： PAMPUS G ,  SCHON N ,  WITTE J ,  MARWEDE G

IPC: C08G61/00 ,  C08F236/04 ,  C08G61/02 ,  C08G61/06 ,  C08G61/08 ,  C08F15/04

CPC classification number: C08G61/08 ,  C08F236/04 ,  C08G61/02

Abstract: A PROCESS FOR THE PREPARATION OF COPOLYMERS FROM CYCLIC MONOOLEFINS AND CYCLIC POLYOLEFINS BY POLYMERIZATION IN AN INERT ORGANIC SOLVENT IN THE PRESENCE OF AN ORGANO-METALLIC MIXED CATALYST, CHARACTERIZED IN THAT THE CATALYST USED IS AN ORGANO-METALLIC MIXED CATALYST OF (A) A REACTION PRODUCT OF A TUNGSTEN HALOGEN COMPOUND WITH AN EPOXIDE OR A HALOGEN SUBSTITUTED AND (B) AN ORGANIC ALUMINUM COMPOUND.

公开(公告)号：US3743631A

公开(公告)日：1973-07-03

申请号：US3743631D

申请日：1971-08-04

Applicant: BAYER AG

Inventor： BECK M ,  SCHUECHTER J ,  MARWEDE G ,  KUNTZ E

IPC: C08C2/06 ,  C08D5/02 ,  C08D5/04

CPC classification number: C08C2/06

Abstract: A PROCESS FOR ISOLATING POLYISOPRENE FROM A CATALYSTCONTAINING SOLUTION THEREOF IN AN ORGANIC SOLVENT, WHEREIN (1) THE CATALYST IS DEACTIVATED IN THE POLYMER SOLUTION WITH AN AQUEOUS OR ALCOHOLIC SOLUTION OF A HYDROXIDE OF A METAL OF GROUPS 1A OR 2A OF THE PERIODIC SYSTEM; (2) THE DEACTIVATED SOLUTION IS WASHED WITH WATER, STABILISERS AND/OR MODIFIERS OPTIONALLY BEING ADDED IN STAGE 1 OR STAGE 2; (3) THE AQUEOUS OR AQUEOUS/ALCOHOLIC PHASE IS SEPARATED OFF; (4) AN ALIPHATIC DIAMINE OR POLYAMINE IS ADDED, AND (5) THE ORGANIC SOLVENT IS REMOVED BY STREAM DISTILLATION.

公开(公告)号：US3824226A

公开(公告)日：1974-07-16

申请号：US33885773

申请日：1973-03-07

Applicant: BAYER AG

Inventor： MARWEDE G ,  PAMPUS G ,  HAAS F ,  GUNTHER P ,  OBERKIRCH W

IPC: C08F36/04 ,  C08F136/04 ,  C08D1/14 ,  C08D3/04

CPC classification number: C08F36/04 ,  C08F136/04 ,  C08F4/7096

Abstract: A CATALYST SYSTEM FOR THE STEREOSPECIFIC POLYMERISATION OF 1,3-PENTADIENE INTO TRANS-1,2-POLY-1,3-PENTADIENE, COMPRISING (A) AN ANHYDROUS COBALT SALT (B) AN ACID AMIDE OR AN ETHER AND (C) AN ORGANOALUMINIUM COMPOUND AND A PROCESS FOR POLYMERISING 1,3-PENTADIENE IN AN INERT SOLVENT AT TEMPERATURES OF FROM-50* TO + 100*C. USING THE CATALYST.

公开(公告)号：US3769369A

公开(公告)日：1973-10-30

申请号：US3769369D

申请日：1972-05-10

Applicant: BAYER AG

Inventor： MARWEDE G ,  THEISEN D ,  GRAULICH W ,  BECK M

IPC: C08L9/00 ,  C08L65/00 ,  C08D9/08

CPC classification number: C08L9/00 ,  C08L65/00 ,  C08L2666/14 ,  C08L2666/08

Abstract: RUBBER MIXTURES CONTAINING (A) 5-95% BY WEIGHT OF POLYISOPRENE RUBBER AND (B) 95-5% BY WEIGHT OF TRANS-1,5-POLYPENTENAMER.