Global Patent Index - EP 0946297 A4

EP 0946297 A4 2000-08-09 - SUPPORTED MODIFIED ZIEGLER-METALLOCENE CATALYST FOR OLEFIN POLYMERIZATION

Title (en)

SUPPORTED MODIFIED ZIEGLER-METALLOCENE CATALYST FOR OLEFIN POLYMERIZATION

Title (de)

GETRÄGERTER, MODIFIZIERTER ZIEGLER-METALLOCEN-KATALYSATOR ZUR OLEFINPOLYMERISATION

Title (fr)

CATALYSEUR ZIEGLER-METALLOCENE MODIFIE SUPPORTE POUR LA POLYMERISATION DES OLEFINES

Publication

EP 0946297 A4 (EN)

Application

EP 97934098 A

Priority

  • US 9712027 W
  • US 69173496 A

Abstract (en)

[origin: WO9805422A1] A novel bimetallic catalyst was prepared from trialkyl silanol, dibutylmagnesium, alkoxy titanium chloride complex and a metallocene-alumoxane reaction product supported on silica. This catalyst can polymerize ethylene and higher olefins using triethylaluminum (TEA), diisobutylaluminum hydride (DIBAH), trimethylaluminum (TMA) and other aluminum alkyls as co-catalyst to give bimodal MWD resins suitable for premium HIC and/or HMW film applications.

IPC 1-7 (main, further and additional classification)

B01J 31/00; C08F 4/02

IPC 8 full level (invention and additional information)

B01J 31/06 (2006.01); B01J 31/00 (2006.01); B01J 31/02 (2006.01); B01J 31/14 (2006.01); B01J 31/16 (2006.01); B01J 31/22 (2006.01); C08F 4/02 (2006.01); C08F 4/64 (2006.01); C08F 10/00 (2006.01); C08F 4/659 (2006.01)

CPC (invention and additional information)

B01J 31/1616 (2013.01); B01J 31/0274 (2013.01); B01J 31/122 (2013.01); B01J 31/143 (2013.01); B01J 31/2295 (2013.01); C08F 10/00 (2013.01); B01J 2531/48 (2013.01); B01J 2531/49 (2013.01); C08F 4/65912 (2013.01); C08F 110/02 (2013.01)

Combination set (CPC)

  1. C08F 10/00 + C08F 4/65916
  2. C08F 10/00 + C08F 4/65904

Citation (search report)

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

WO 9805422 A1 19980212; AU 3723597 A 19980225; CA 2262948 A1 19980212; EP 0946297 A1 19991006; EP 0946297 A4 20000809; JP 2000515425 A 20001121; KR 20000029770 A 20000525

INPADOC legal status


2001-04-25 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 19990303

2000-08-16 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7B 01J 31/00 A, 7C 08F 4/02 B, 7C 08F 10/00 B

2000-08-09 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000628

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE ES FR GB IT NL

1999-10-06 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19990222

1999-10-06 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE ES FR GB IT NL