Global Patent Index - EP 0981556 A1

EP 0981556 A1 2000-03-01 - ETHYLENE/ALPHA-OLEFIN/DIENE INTERPOLYMERS AND THEIR PREPARATION

Title (en)

ETHYLENE/ALPHA-OLEFIN/DIENE INTERPOLYMERS AND THEIR PREPARATION

Title (de)

ETHYLEN-ALPHA-OLEFIN-DIEN-COPOLYMERE UND IHRE HERSTELLUNG

Title (fr)

INTERPOLYMERES D'ETYLENE/ALPHA-OLEFINE/DIENE ET LEUR PREPARATION

Publication

EP 0981556 A1 (EN)

Application

EP 97922557 A

Priority

US 9707252 W

Abstract (en)

[origin: WO9849212A1] Random ethylene/alpha-olefin/diene monomer interpolymers with an alpha-olefin distribution that is more clustered than Bernoullian are prepared using Group 4 metal constrained geometry complex catalyst and an activating cocatalyst. The catalyst includes a fused ring indenyl derivative ligand.

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

C08F 210/18; C08F 4/645

IPC 8 full level (invention and additional information)

C08F 4/645 (2006.01); C08F 210/18 (2006.01); C08F 4/659 (2006.01)

CPC (invention and additional information)

C08F 210/18 (2013.01); C08F 10/00 (2013.01); C08F 4/65908 (2013.01)

Combination set (CPC)

  1. C08F 210/18 + C08F 4/65912
  2. C08F 210/18 + C08F 4/6592
  3. C08F 210/18 + C08F 210/06 + C08F 236/20 + C08F 2500/25 + C08F 2500/03 + C08F 2500/17
  4. C08F 10/00 + C08F 4/6592

Citation (search report)

See references of WO 9849212A1

Designated contracting state (EPC)

AT BE DE DK ES FR GB IT NL

EPO simple patent family

WO 9849212 A1 19981105; AU 2819697 A 19981124; CA 2287963 A1 19981105; EP 0981556 A1 20000301; JP 2001522398 A 20011113

INPADOC legal status


2003-02-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020404

2000-11-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001013

2000-03-01 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991027

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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