Global Patent Index - EP 1049727 A1

EP 1049727 A1 2000-11-08 - CATALYST SYSTEM FOR GAS PHASE POLYMERISATION OF CONJUGATED DIENES

Title (en)

CATALYST SYSTEM FOR GAS PHASE POLYMERISATION OF CONJUGATED DIENES

Title (de)

KATALYSATORSYSTEM ZUR GASPHASENPOLYMERISATION VON KONJUGIERTEN DIENEN

Title (fr)

SYSTEME DE CATALYSEUR POUR LA POLYMERISATION EN PHASE GAZEUSE DE DIENES CONJUGUES

Publication

EP 1049727 A1 (DE)

Application

EP 99903606 A

Priority

  • DE 19801857 A
  • EP 9900032 W

Abstract (en)

[origin: DE19801857A1] A catalyst system comprises (A) a rare earth alcoholate, carboxylate, diketone complex and/or halide adduct with an oxygen or nitrogen donor compound, (B) an aluminum trialkyl and/or dialkylaluminum hydride and/or alumoxane, (C) another Lewis acid and (D) an inert, particulate, (in)organic solid, and also a cocatalyst on an (in)organic carrier. A catalyst system comprises (A) a rare earth alcoholate (RO)3M (I), carboxylate (R-CO2)3M (II), diketone complex (R-CO-CH-CO-R)3M (III) and/or halide adduct MX3.y Donor (IV) with an oxygen (O) or nitrogen (N) donor compound, (B) an aluminum trialkyl and/or dialkylaluminum hydride Al(H)xR<1>)3-x (V) and/or alumoxane R<1>-(A(R<1>)-O)nAl(R<1>)2 (VI) or (VII), (C) another Lewis acid and (D) an inert, particulate, (in)organic solid with a BET specific surface area greater than 10 m<2>/g and a pore volume of 0.3-15 ml/g and also, if carbon black is used, a dibutyl phthalate (DBP) adsorption of 10-300 ml/100 g; and also a cocatalyst on an (in)organic carrier; R = 1-20 C alkyl; M = a trivalent rare earth element with atomic number 57-71; X = chlorine, bromine or iodine; x = 0 or 1; y = 1-6; n = 1-50; R<1> = 1-10 C alkyl. Independent claims are also included for (a) the use of carrier materials coated with cocatalysts in the gas phase polymerization of conjugated dienes; and (b) particles with a core of polybutadiene or polyisoprene and a shell of carrier coated with cocatalyst.

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

C08F 36/04; C08F 4/52

IPC 8 full level (invention and additional information)

C08F 2/34 (2006.01); C08F 4/02 (2006.01); C08F 4/52 (2006.01); C08F 4/54 (2006.01); C08F 36/04 (2006.01)

CPC (invention and additional information)

C08F 36/04 (2013.01); C08F 4/52 (2013.01)

Combination set (CPC)

  1. C08F 36/04 + C08F 2/34
  2. C08F 36/04 + C08F 4/545

Citation (search report)

See references of WO 9937694A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19801857 A1 19990722; AU 2420099 A 19990809; CA 2318054 A1 19990729; EP 1049727 A1 20001108; JP 2002501092 A 20020115; US 6576727 B1 20030610; WO 9937694 A1 19990729

INPADOC legal status


2003-06-18 [18W] WITHDRAWN

- Effective date: 20030424

2002-09-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020722

2000-11-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000821

2000-11-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT