Global Patent Index - EP 0973707 A1

EP 0973707 A1 2000-01-26 - METHOD FOR ELIMINATING INHIBITORS OF POLYMERISATION OF MONOMER MIXTURES USING AN ALUMINA WITH OPTIMISED FORM

Title (en)

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

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 DE FORME OPTIMISEE

Publication

EP 0973707 A1 (FR)

Application

EP 98902068 A

Priority

  • FR 9800053 W
  • FR 9700625 A

Abstract (en)

[origin: FR2758554A1] The invention concerns a method for adsorbing inhibitors of polymerisation of ethylenically unsaturate monomers which consists in contacting these inhibitors with an alumina derived from forming by coagulation or by mixing and extruding.

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

C07B 63/00; C07C 7/12

IPC 8 full level (invention and additional information)

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

CPC (invention and additional information)

C07B 63/00 (2013.01)

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 2758554 A1 19980724; FR 2758554 B1 19990416; AU 5870798 A 19980818; BR 9806983 A 20000314; CN 1248234 A 20000322; EP 0973707 A1 20000126; JP 2000513007 A 20001003; KR 20000070327 A 20001125; NO 993555 A 19990920; NO 993555 D0 19990720; TW 394781 B 20000621; US 6174480 B1 20010116; WO 9832717 A1 19980730

INPADOC legal status


2002-04-17 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011006

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

- Ref Legal Event Code: 17Q

- Effective date: 20010726

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

- Ref Legal Event Code: 17P

- Effective date: 19990712

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

- Ref Legal Event Code: AK

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