Global Patent Index - EP 1044166 A1

EP 1044166 A1 2000-10-18 - METHOD FOR REMOVING HYDROPHOBIC IMPURITIES USING CLEAVABLE NONIONIC SURFACTANTS

Title (en)

METHOD FOR REMOVING HYDROPHOBIC IMPURITIES USING CLEAVABLE NONIONIC SURFACTANTS

Title (de)

VERFAHREN ZUR ENTFERNUNG HYDROPHOBER VERUNREINIGUNGEN MITTELS SPALTBARER NICHTIONISCHER TENSIDE

Title (fr)

PROCEDE D'ELIMINATION D'IMPURETES HYDROPHOBES A L'AIDE DE TENSIOACTIFS NON IONIQUES CLIVABLES

Publication

EP 1044166 A1 (DE)

Application

EP 98955522 A

Priority

  • DE 19748396 A
  • EP 9806767 W

Abstract (en)

[origin: DE19748396A1] The invention relates to a method for the removal of hydrophobic impurities from aqueous systems by using cleavable alkyl and/or alkenyl oligoglucosides. The invention also relates to the use of cleavable alkyl and/or alkenyl oligoglucosides as nonionic surfactants for the removal of hydrophobic impurities from aqueous systems.

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

C02F 1/54; C11D 3/00

IPC 8 full level (invention and additional information)

C02F 1/56 (2006.01); C02F 3/34 (2006.01); C02F 9/00 (2006.01); C07H 15/04 (2006.01)

CPC (invention and additional information)

C07H 15/04 (2013.01); C02F 9/00 (2013.01); C02F 1/56 (2013.01); C02F 3/342 (2013.01); C02F 2103/28 (2013.01)

Citation (search report)

See references of WO 9923036A1

Designated contracting state (EPC)

DE ES FR GB IT SE

EPO simple patent family

DE 19748396 A1 19990506; EP 1044166 A1 20001018; WO 9923036 A1 19990514

INPADOC legal status


2002-08-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020208

2001-11-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010927

2000-10-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000422

2000-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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