EP 1237942 A1 20020911 - METHOD FOR (CO)POLYMERIZING POLAR AND NON-POLAR MONOMERS
Title (en)
METHOD FOR (CO)POLYMERIZING POLAR AND NON-POLAR MONOMERS
Title (de)
VERFAHREN ZUR (CO)POLYMERISATION VON POLAREN UND UNPOLAREN MONOMEREN
Title (fr)
PROCEDE DE (CO)POLYMERISATION DE MONOMERES POLAIRES ET HOMOPOLAIRES
Publication
Application
Priority
- DE 19959252 A 19991209
- EP 0011811 W 20001127
Abstract (en)
[origin: WO0142314A1] The invention relates to a method for carrying out the transition metal-catalyzed production of polymers having a syndiotactic or predominantly syndiotactic structure from vinyl aromatic monomers. The invention also relates to a method for producing block copolymers from vinyl aromatic monomers and from olefinically unsaturated polar monomers. According to the invention, transition metal compounds of general formula (I) are used in which the substituents and indices have the following meanings: M represents scandium, yttrium, lanthanum or a lanthanoid metal; R''' represents pi -C3 to C20 alkyl; L represents a low-molecular, Lewis-basic organic compound, whereby n1 and n2 = 0 or n1 = 0 and n2 = 1 or n1 = 1 and n2 = 0, and; m represents 1 or 2.
IPC 1-7
IPC 8 full level
C08F 4/52 (2006.01); C08F 12/00 (2006.01); C08F 12/04 (2006.01); C08F 297/06 (2006.01); C08J 5/00 (2006.01)
CPC (source: EP US)
C08F 4/52 (2013.01 - EP US); C08F 12/04 (2013.01 - EP US)
Citation (search report)
See references of WO 0142314A1
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 0142314 A1 20010614; DE 19959252 A1 20010613; EP 1237942 A1 20020911; JP 2004500450 A 20040108; US 6599996 B1 20030729
DOCDB simple family (application)
EP 0011811 W 20001127; DE 19959252 A 19991209; EP 00977581 A 20001127; JP 2001543609 A 20001127; US 13082002 A 20020523