U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Cleaning composition containing a colorant stabilized against fading

Patent 4803008 Issued on February 7, 1989. Estimated Expiration Date: Icon_subject September 23, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3214380

3338837

3503885

3558263

Process for making detergent compositions
Patent #: 4298491
Issued on: 11/03/1981
Inventor: Coxon ,   et al.

Color stabilized nonionic surfactants
Patent #: 4412933
Issued on: 11/01/1983
Inventor: Klahr ,   et al.

Washing compositions containing organic peracid bleaches or their precursors and iodide ion donors
Patent #: 4427566
Issued on: 01/24/1984
Inventor: Clements

Dye stabilized detergent compositions
Patent #: 4526701
Issued on: 07/02/1985
Inventor: Rubin

Cleaning composition for glass and similar hard surfaces Patent #: 4606842
Issued on: 08/19/1986
Inventor: Keyes ,   et al.

Inventors

Assignee

Application

No. 07/099922 filed on 09/23/1987

US Classes:

510/419, With colorant component106/311, Vehicles or solvents252/364, SOLVENTS252/397, Anti-oxidants or chemical change inhibitants424/670, Potassium iodide510/421, Polyoxyalkylene containing surfactant devoid of covalently bonded anionic substituents510/424, Sulfur containing anionically substituted surfactant510/432, Organic solvent component8/904, MIXED ANIONIC AND NONIONIC EMULSIFIERS FOR DYEING8/906, MIXED CATIONIC AND NONIONIC EMULSIFIERS FOR DYEING8/907, NONIONIC EMULSIFIERS FOR DYEING8/909Sulfonated or sulfated alphatic hydrocarbons

Examiners

Primary: Lieberman, Paul
Assistant: Krasnow, Ronald A.

Attorney, Agent or Firm

International Classes

C11D 3/40 (20060101)
C11D 3/43 (20060101)

Abstract

An aqueous cleaning composition comprising a surfactant; up to about 50% of a higher boiling solvent, typically an alkyl ether of an alkylene glycol, said solvent introducing impurities into the composition in an amount and of a nature normally chemically incompatible with oxidizable dye chromophores; a dye in an amount to provide a desired tinctorial value, and a stabilizer selected from the group consisting of salts suitable to provide iodide and thiosulfate anions in an amount effective to retard fading of the dye, said compositions having a basic pH when the stabilizer is the thiousulfate salt. In another aspect of the invention, the stabilizer incorporated into compositions containing a solvent, a surfactant, and water, and optionally a dye provides a beneficial cleaning result. In yet another aspect of the invention, the stabilizer beneficially retards the development of malodors when the compositions of the present invention are contained in a PVC container. Broadly, the incorporation of the stabilizer in said solvent can be employed to neutralize said impurities.

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