Global patent index - EP 1042377 A1

EP 1042377 A1 2000-10-11 - SLURRY POLYMERIZATION PROCESS WITH ALKYL-SUBSTITUTED BISCYCLOPENTADIENYL METALLOCENES

Title (en)

SLURRY POLYMERIZATION PROCESS WITH ALKYL-SUBSTITUTED BISCYCLOPENTADIENYL METALLOCENES

Title (de)

VERFAHREN ZUR SUSPENSIONSPOLYMERISATION MIT ALKYLSUBSTITUIERTEN BISCYCLOPENTADIENLYMETALLOCENEN

Title (fr)

PROCEDE DE POLYMERISATION DE BOUES AVEC DES METALLOCENES DE BIS-CYCLOPENTADIENYLE A SUBSTITUTION ALKYLE

Publication

EP 1042377 A1 (EN)

Application

EP 98964876 A

Priority

  • US 9827361 W
  • US 6864097 P

Abstract (en)

[origin: WO9932531A1] The invention describes a slurry process for producing ethylene polymers and copolymers with high productivity capability that will be particularly suitable for industrial practice. This process relates to contacting ethylene, optionally with one or more copolymerizable monomers, under slurry conditions with a supported zirconium biscyclopentadienyl metallocene wherein at least one cyclopentadienyl group contains a hydrocarbyl or hydrocarbylsilyl group that is a C4-C20 branched-alkyl or -silylalkyl substituent with said branch occurring at the second or third atom removed from the cyclopentadienyl rings thereof. Examples of poly(ethylene-hexene) made with bis(isobutylcyclopentadienyl) zirconium dichloride and bis((trimethylsilylmethyl)cyclopentadienyl) zirconium dichloride are presented with suitable comparisons of similar catalysts.

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

C08F 10/02; C08F 2/14; C08F 4/642

IPC 8 full level (invention and additional information)

C08F 2/06 (2006.01); C08F 2/14 (2006.01); C08F 4/642 (2006.01); C08F 4/6592 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08F 4/659 (2006.01)

CPC (invention and additional information)

C08F 10/00 (2013.01); C08F 10/02 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 4/65927 (2013.01); C08F 110/02 (2013.01)

Combination set (CPC)

  1. C08F 10/00 + C08F 4/65925
  2. C08F 10/02 + C08F 4/65925

Citation (search report)

See references of WO 9932531A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL SE

EPO simple patent family

WO 9932531 A1 19990701; CA 2304491 A1 19990701; CA 2314502 A1 19990701; DE 69814920 D1 20030626; DE 69814920 T2 20031224; EP 1042376 A1 20001011; EP 1042376 B1 20030521; EP 1042377 A1 20001011; ES 2195443 T3 20031201; JP 2001527097 A 20011225; JP 2001527098 A 20011225; WO 9932530 A1 19990701

INPADOC legal status

2003-07-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021230

2002-07-31 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020618

2000-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000706

2000-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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