Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-08-03
2002-03-26
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S422000, C510S426000, C510S470000, C510S504000, C510S522000, C510S511000
Reexamination Certificate
active
06362149
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a plastics compatible detergent composition and to a method for cleaning plastics. In particular, the plastics compatible detergent composition is a detergent composition that can be used in a conventional warewashing machine.
BACKGROUND OF THE INVENTION
Many articles manufactured from plastics require periodic cleaning. Many conventional detergent compositions include chemicals that cause stress cracks in plastics. Stress cracks are the cracks that result when the plastic is exposed to chemicals (usually organic) that facilitate the release of the built-in stress (or frozen-in stress) in the plastics.
U.S. Pat. No. 5,501,815 to Man discloses a plasticware-compatible low-foaming rinse aid composition. The rinse aid composition includes an alkyl polyglycoside (APG) and a reverse polyoxyethylene-containing polyoxyalkylene block copolymer.
SUMMARY OF THE INVENTION
A plastics compatible detergent composition is provided by the invention. The plastics compatible detergent composition includes about 0.01 wt. % to about 10 wt. % anionic surfactant; about 0.01 wt. % to about 10 wt. % cationic surfactant; about 0.01 wt. % to about 10 wt. % at least one of reverse polyoxyalkylene block copolymer surfactant, alcohol alkoxylate surfactant having polyoxypropylene and/or polyoxybutylene end groups, and mixtures thereof; about 0.01 wt. % to about 10 wt. % alkylpolyglycoside surfactant; and about 0.01 wt. % to about 20 wt. % silicone surfactant.
A method for washing an article having a plastic surface is provided by the invention. The method includes a step of applying the detergent composition to the plastic surface, and rinsing the detergent composition from the article.
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Klaers Karen G.
Man Victor F.
Ecolab Inc.
Merchant & Gould P.C.
Ogden Necholus
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