C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/66 (2006.01) C11D 1/825 (2006.01) C11D 3/00 (2006.01) C11D 3/16 (2006.01) C11D 3/20 (2006.01) C11D 3/37 (2006.01) C11D 10/04 (2006.01) C11D 17/00 (2006.01)
Patent
CA 2155824
Nonionic surfactants comprising a mixture of fatty acid esters of sorbitol and sorbitol anhydrides comprising predominantly the mono, di-or tri ester condensed with approximately 15 or more moles of an alkylene oxide in combination with an effective defoamer and a water soluble diluent form surprisingly useful and effective low foatning rinse agent composition or concentrate. The rinse agent can achieve adequate sheeting in cotnmon aqueous rinses at typical rinse temperatures at a concentration of the nonionic sorbitan ester in water at concentrations about 500 parts of the fully formulated rinse agent per million parts of water. The rinse agents can be used in a rinse cycle in common warewashing machines after washing with commonly available warewashing compositions. The rinse agents can take the form of thickened pourable or semi-pourable aqueous liquids or cast solid materials packaged within a disposable wrapper, capsule or other package. The preferred form of the rinse agent is a pourable or pumpable aqueous concentrate. The uniqueness of the invention relates to the fact that all components are not expected to be active as sheeting, agents and are approved as food additives thereby eliminating any health concerns associated with residual deposits of the compositions on cleaned water.
Ecolab Inc.
Robic
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