EP 1237952 A1 20020911 - METHOD FOR THE HOMOGENEOUS CATALYTIC PRODUCTION OF HIGHLY BRANCHED AMORPHOUS POLYOLEFINS
Title (en)
METHOD FOR THE HOMOGENEOUS CATALYTIC PRODUCTION OF HIGHLY BRANCHED AMORPHOUS POLYOLEFINS
Title (de)
VERFAHREN ZUR HOMOGENKATALYTISCHEN HERSTELLUNG VON HOCHVERZWEIGTEN AMORPHEN POLYOLEFINEN
Title (fr)
PROCEDE DE PRODUCTION PAR CATALYSE HOMOGENE DE POLYOLEFINES AMORPHES FORTEMENT RAMIFIEES
Publication
Application
Priority
- DE 19960123 A 19991213
- EP 0011812 W 20001127
Abstract (en)
[origin: WO0144317A1] The invention relates to a method for the homogeneous catalytic production, starting from ethene, of highly branched amorphous polyolefins which have an elastomeric characteristic profile. In a first step of said method a) ethene is oligomerized in the presence of a transition metal compound of general formula (I), whereby R<1> and R<2> represent C4 to C16 heteroaryl or C6 to C16 aryl with hydrogen substituents in both vicinal or ortho positions in relation to the binding site between the aryl or heteroaryl and N<a> or N<b> and is optionally oligomerized in the presence of a co-catalyst in an inert solvent. In a further step b), a transition metal compound of general formula (II) is added to the oligomerization mixture produced according to step a) and the reaction is continued in the presence of ethene. In a subsequent step c), the polymer product obtained is isolated.
[origin: WO0144317A1] The invention relates to a method for the homogeneous catalytic production, starting from ethene, of highly branched amorphous polyolefins which have an elastomeric characteristic profile. In a first step of said method a) ethene is oligomerized in the presence of a transition metal compound of general formula (I), whereby R<1> and R<2> represent C4 to C16 heteroaryl or C6 to C16 aryl with hydrogen substituents in both vicinal or ortho positions in relation to the binding site between the aryl or heteroaryl and N<a> or N<b> and is optionally oligomerized in the presence of a co-catalyst in an inert solvent. In a further step b), a transition metal compound of general formula (II) is added to the oligomerization mixture produced according to step a) and the reaction is continued in the presence of ethene. In a subsequent step c), the polymer product obtained is isolated.
IPC 1-7
IPC 8 full level
C08F 4/42 (2006.01); C08F 4/60 (2006.01); C08F 4/64 (2006.01); C08F 4/646 (2006.01); C08F 4/659 (2006.01); C08F 4/70 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08F 110/02 (2006.01); C08L 23/08 (2006.01)
CPC (source: EP)
C08F 10/00 (2013.01); C08F 10/02 (2013.01); C08F 110/02 (2013.01); C08L 23/0815 (2013.01); C08F 4/65912 (2013.01); C08L 2308/00 (2013.01); C08L 2314/06 (2013.01)
Citation (search report)
See references of WO 0144317A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0144317 A1 20010621; DE 19960123 A1 20010621; EP 1237952 A1 20020911; JP 2003517056 A 20030520
DOCDB simple family (application)
EP 0011812 W 20001127; DE 19960123 A 19991213; EP 00983173 A 20001127; JP 2001544804 A 20001127