Global Patent Index - EP 0971020 A1

EP 0971020 A1 20000112 - Non-foaming detergent compositions for concentrated alkaline medium

Title (en)

Non-foaming detergent compositions for concentrated alkaline medium

Title (de)

Nichtschäumende Reinigungsmittel für konzentriertes alkalisches Medium

Title (fr)

Compositions détergentes non moussantes pour milieux alcalins concentrés

Publication

EP 0971020 A1 20000112 (FR)

Application

EP 99401539 A 19990621

Priority

FR 9808608 A 19980706

Abstract (en)

A detergent composition non-foaming and stable in a strongly alkaline medium, for industrial or domestic uses comprises a non-foaming detergent (25-45 wt. parts), a stabilizing agent (15-25 wt. parts) and alkenylsuccinic acid or anhydride (30-60 wt. parts). A detergent composition non-foaming and stable in a strongly alkaline medium, for industrial or domestic uses comprises a non-foaming detergent of formula (I) (25-45 wt. parts), a stabilizing agent (15-25 wt. parts) and alkenylsuccinic acid of formula (II) or its anhydride (30-60 wt. parts). The stabilizing agent is phosphoric mono- or diester produced by reacting phosphoric anhydride with 4-12C aliphatic alcohol. R<1> = 8-20C (preferably 8-12C) alkyl, octylphenyl or nonylphenyl; n = 8-15; R<2> = 3-5C alkoxy, benzyloxy, Cl or polyoxyalkylene of formula (i); R' = 1-2C alkyl; p = 1-10; m = 4-12. An Independent claim is also included for a detergent comprising the detergent composition described above (1-5 wt. %) in a solution of sodium hydroxide or potassium hydroxide, or a mixture of alkaline salts.

Abstract (fr)

Compositions détergentes non moussantes et stables en milieu fortement alcalin, comportant 25 à 45 % en poids d'agent détergent non moussant, en particulier un tensioactif non ionique chapeauté, par exemple un α-alkyle-ω-halogéno-poly(oxy-1,2-éthanediyle), ou un l'α-décyl-ω-benzyloxy-poly(oxy-1,2-éthanediyle), 15 à 25 % en poids d'agent de stabilisation, en particulier un ester phosphorique d'alcool gras, et 30 à 60 % en poids d'acide ou d'anhydride alkénylsuccinique, en particulier l'acide ou l'anhydride octénylsuccinique. Ces compositions permettent la préparation de lessives alcalines pour nettoyage de surfaces dures, elles-mêmes non moussantes, même en nettoyage sous pression.

IPC 1-7

C11D 3/00; C11D 1/83; C11D 3/20; C11D 3/36

IPC 8 full level

C11D 1/72 (2006.01); C11D 1/722 (2006.01); C11D 3/04 (2006.01); C11D 3/20 (2006.01); C11D 3/36 (2006.01); C11D 17/08 (2006.01)

CPC (source: EP)

C11D 1/83 (2013.01); C11D 3/0026 (2013.01); C11D 3/2082 (2013.01); C11D 3/362 (2013.01); C11D 1/08 (2013.01); C11D 1/345 (2013.01); C11D 1/721 (2013.01); C11D 1/722 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI NL SE

DOCDB simple family (publication)

EP 0971020 A1 20000112; EP 0971020 B1 20040310; AR 019888 A1 20020320; AT 261488 T 20040315; BR 9902540 A 20000118; CA 2276906 A1 20000106; CA 2276906 C 20030923; DE 69915414 D1 20040415; DE 69915414 T2 20050303; FR 2780732 A1 20000107; FR 2780732 B1 20000908; JP 2000178582 A 20000627; NO 993319 D0 19990705; NO 993319 L 20000107; US 2003078175 A1 20030424; US 6693065 B2 20040217

DOCDB simple family (application)

EP 99401539 A 19990621; AR P990103274 A 19990707; AT 99401539 T 19990621; BR 9902540 A 19990705; CA 2276906 A 19990705; DE 69915414 T 19990621; FR 9808608 A 19980706; JP 22563899 A 19990705; NO 993319 A 19990705; US 34757499 A 19990706