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1. (WO2003078559) CLEANING FORMULATION AND METHOD OF CLEANING SURFACES

Pub. No.:    WO/2003/078559    International Application No.:    PCT/CA2003/000394
Publication Date: Sep 25, 2003 International Filing Date: Mar 20, 2003
IPC: C11D 3/06
C11D 3/12
C11D 3/32
C11D 7/02
C11D 17/00
Applicants: TROJAN TECHNOLOGIES INC.
Inventors: OLIVER, Michael, D.
Title: CLEANING FORMULATION AND METHOD OF CLEANING SURFACES
Abstract:
A cleaning formulation comprising a cleaning agent, a particulate clay material and an aqueous carrier. In a preferred embodiment, the formulation has a pH less than about 1.0 and is characterized by: (i) at least a 90% reduction in viscosity at 25°C at a shear rate of up to about 0.10 s-1, and (ii) a substantially unchanged viscosity for a period of at least 60 days. The cleaning formulation is thixotropic and has a highly desirable combination of acid stability, temperature stability, electrolyte stability and ultraviolet radiation stability.