Global Patent Index - EP 0973706 A1

EP 0973706 A1 2000-01-26 - METHOD FOR ELIMINATING INHIBITORS OF POLYMERISATION OF MONOMER MIXTURES USING AN OPTIMISED ALUMINA

Title (en)

METHOD FOR ELIMINATING INHIBITORS OF POLYMERISATION OF MONOMER MIXTURES USING AN OPTIMISED ALUMINA

Title (de)

ENTFERNUNG VON POLYMERISIERUNGSINHIBITOREN AUS MISCHUNGEN VON MONOMEREN MITTELS OPTIMIERTEN ALUMINIUMOXIDS

Title (fr)

PROCEDE D'ELIMINATION D'INHIBITEURS DE POLYMERISATION DE MELANGES DE MONOMERES A L'AIDE D'UNE ALUMINE OPTIMISEE

Publication

EP 0973706 A1 (FR)

Application

EP 98902066 A

Priority

  • FR 9800051 W
  • FR 9700623 A

Abstract (en)

[origin: FR2758552A1] The invention concerns a method for adsorbing inhibitors of polymerisation of ethylenically unsaturate monomers, which consists in contacting these inhibitors with an alumina, said alumina having a pore volume of diameter greater than 100 ANGSTROM by at least 0.20 ml/g, preferably by at least 0.25 ml/g, still more preferably by at least 0.30 ml/g, and a specific surface area of at least 30 m2/g, preferably of at least 60 m2/g, still more preferably of at least 80 m2/g.

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

C07B 63/00; C07C 7/12

IPC 8 full level (invention and additional information)

C07B 63/00 (2006.01); C07C 7/12 (2006.01); C07C 15/46 (2006.01)

CPC (invention and additional information)

C07B 63/00 (2013.01); C07C 7/12 (2013.01)

Combination set (CPC)

C07C 7/12 + C07C 15/46

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2758552 A1 19980724; FR 2758552 B1 19990416; AU 5870598 A 19980818; BR 9806980 A 20000314; CN 1248236 A 20000322; EP 0973706 A1 20000126; JP 2000510477 A 20000815; KR 20000070330 A 20001125; NO 993557 A 19990920; NO 993557 D0 19990720; TW 394780 B 20000621; US 6288299 B1 20010911; WO 9832715 A1 19980730

INPADOC legal status


2002-04-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011006

2001-09-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010726

2000-01-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990712

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE