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1. WO2000050554 - COLOR STABLE HYPOCHLOROUS SANITIZER AND METHODS

Publication Number WO/2000/050554
Publication Date 31.08.2000
International Application No. PCT/US2000/004595
International Filing Date 23.02.2000
Chapter 2 Demand Filed 01.09.2000
IPC
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
3
Other compounding ingredients of detergent compositions covered in group C11D1/101
395
Bleaching agents
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
3
Other compounding ingredients of detergent compositions covered in group C11D1/101
40
Dyes
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
3
Other compounding ingredients of detergent compositions covered in group C11D1/101
48
Medicinal or disinfecting agents
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
7
Compositions of detergents based essentially on non-surface-active compounds
02
Inorganic compounds
04
Water-soluble compounds
08
Acids
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
7
Compositions of detergents based essentially on non-surface-active compounds
22
Organic compounds
26
containing oxygen
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
17
Detergent materials or soaps characterised by their shape or physical properties
C11D 3/395 (2006.01)
C11D 3/40 (2006.01)
C11D 3/48 (2006.01)
C11D 7/08 (2006.01)
C11D 7/26 (2006.01)
C11D 17/00 (2006.01)
CPC
C11D 17/0047
C11D 3/3955
C11D 3/3956
C11D 3/40
C11D 3/48
C11D 7/08
Applicants
  • KAY CHEMICAL COMPANY [US/US]; 8300 Capital Drive Greensboro, NC 27409, US
Inventors
  • SOWLE, Eddie, D.; US
  • BOWLING, Darryl, C.; US
Agents
  • SORENSEN, Andrew, D.; Ecolab Inc. 840 Sibley Memorial Highway Mendota Heights, MN 55118, US
Priority Data
09/257,08624.02.1999US
09/501,87610.02.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COLOR STABLE HYPOCHLOROUS SANITIZER AND METHODS
(FR) DESINFECTANT HYPOCHLOREUX A COULEUR STABLE ET PROCEDES ASSOCIES
Abstract
(EN)
Manual warewashing in common food service locations is typically performed in a multicompartment sink. In one basin the ware is contacted with an aqueous detergent. The cleaned ware is rinsed in a subsequent sink and is then sanitized in a sanitizing solution in a third sink. Hypochlorite bleaches, if adjusted to an appropriate pH, can maintain substantial sanitizing capacity while not decolorizing otherwise oxidatively sensitive dyes. In the method of the invention, the sanitizing solution adjusted to a pH of less than about 7 containing a dye can maintain a stable dye solution for a period of time greater than the time required to deplete 90 % or more of the OC in solution. An indication of the existence of active sanitizer in the sanitizer step based on the presence of color in the aqueous solution is thus obtained.
(FR)
Dans les entreprises de restauration, la plonge manuelle est généralement effectuée dans un évier à plusieurs compartiments. Dans un bassin la vaisselle est mise en contact avec une solution aqueuse d'un agent tensioactif. La vaisselle est rincée dans un autre bassin, puis désinfectée dans un troisième bassin au moyen d'une solution désinfectante. Des décolorants à base d'hypochlorite fortement oxydant, permettent, lorsque le pH est ajusté à une valeur convenable, de maintenir une capacité sensiblement désinfectante tout en ne décolorant pas des colorants sensibles à l'oxydation. Dans le procédé de l'invention, la solution désinfectante, ajustée à un pH inférieur à environ 7, contenant un colorant, permet de garder une coloration stable durant une période supérieure à la durée requise pour épuiser 90 % ou plus d'ion OCl-1 en solution. Il en résulte une indication satisfaisante de la présence de désinfectant actif sur la base de la couleur de la solution désinfectante.
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