EP 0885248 A1 19981223 - STABLE METALLOCENE CATALYST SYSTEMS
Title (en)
STABLE METALLOCENE CATALYST SYSTEMS
Title (de)
STABILES METALLOCEN-KATALYSATORSYSTEM
Title (fr)
SYSTEMES CATALYSEURS METALLOCENES STABLES
Publication
Application
Priority
- US 9703486 W 19970304
- US 1276096 P 19960304
Abstract (en)
[origin: WO9732906A1] This invention relates to stabilized metallocene catalyst systems and to methods for their production and use. Specifically, these catalyst systems comprise metallocene, alkylalumoxane and optionally support material wherein the ratio of the aluminum of the alkyl alumoxane to the transition metal of the metallocene used to prepare the metallocene is in the range of from about 80:1 to about 200:1. These catalysts retain their activity and may be used directly in polymerization after storage for up to two months or more at ambient temperature.
IPC 1-7
IPC 8 full level
B01J 31/22 (2006.01); B01J 33/00 (2006.01); C08F 4/02 (2006.01); C08F 4/602 (2006.01); C08F 4/642 (2006.01); C08F 10/00 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01)
CPC (source: EP KR)
C08F 4/65912 (2013.01 - KR); C08F 4/65916 (2013.01 - KR); C08F 4/65927 (2013.01 - KR); C08F 10/00 (2013.01 - EP KR); C08F 4/65912 (2013.01 - EP); C08F 4/65916 (2013.01 - EP); C08F 4/65922 (2013.01 - EP)
Citation (search report)
See references of WO 9732906A1
Designated contracting state (EPC)
AT BE DE ES FR IT NL
DOCDB simple family (publication)
WO 9732906 A1 19970912; AU 1988097 A 19970922; CA 2243519 A1 19970912; CN 1214055 A 19990414; EA 199800808 A1 19990429; EP 0885248 A1 19981223; JP 2000506212 A 20000523; KR 19990087458 A 19991227
DOCDB simple family (application)
US 9703486 W 19970304; AU 1988097 A 19970304; CA 2243519 A 19970304; CN 97192760 A 19970304; EA 199800808 A 19970304; EP 97908032 A 19970304; JP 53192297 A 19970304; KR 19980706882 A 19980902