Global Patent Index - EP 0827530 A4

EP 0827530 A4 19991027 - COMPOSITION AND APPARATUS FOR SURFACE CLEANING

Title (en)

COMPOSITION AND APPARATUS FOR SURFACE CLEANING

Title (de)

ZUSAMMENSETZUNG UND VORRICHTUNG ZUM REINIGEN VON OBERFLÄCHEN

Title (fr)

COMPOSITION POUR NETTOYAGE DE SURFACES ET APPAREIL CORRESPONDANT

Publication

EP 0827530 A4 19991027 (EN)

Application

EP 97907694 A 19970219

Priority

  • US 9702587 W 19970219
  • US 60582296 A 19960223

Abstract (en)

[origin: WO9731087A1] The present invention provides an apparatus for surface cleaning, in which a first liquid, which includes an oxidizing agent, and a second liquid, which includes a builder or a chelating agent, are initially maintained separately. The apparatus is constructed to facilitate delivery of these two liquids such that they are combined to form an admixture during delivery to a surface to be treated. Either or both of the first and second liquids include a pH-adjusting agent, which is present in an amount such that when the liquids are so delivered, the resulting admixture is maintained at a pH sufficient for cleaning efficacy and stability of the oxidizing agent. The present invention also provides a composition produced by a process of maintaining the two above-mentioned liquids separately and forming an admixture thereof during delivery to a surface to be treated.

IPC 1-7

C11D 3/33; C11D 3/395; C11D 7/54

IPC 8 full level

C11D 7/54 (2006.01); C11D 3/39 (2006.01); C11D 17/04 (2006.01)

CPC (source: EP)

C11D 3/3947 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

WO 9731087 A1 19970828; AR 005962 A1 19990721; AU 1962997 A 19970910; BR 9702098 A 19990720; CA 2219126 A1 19970828; EP 0827530 A1 19980311; EP 0827530 A4 19991027; JP H11504384 A 19990420

DOCDB simple family (application)

US 9702587 W 19970219; AR P970100718 A 19970221; AU 1962997 A 19970219; BR 9702098 A 19970219; CA 2219126 A 19970219; EP 97907694 A 19970219; JP 53028897 A 19970219