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Aqueous liquid cleaning compositions and their use

a technology of aqueous liquid and composition, applied in the field of aqueous liquid cleaning composition, can solve the problems of loss of clarity, lack of clarity in such aqueous liquid detergent composition, and relatively high cost, and does not really contribute to the leaning performance of the produ

Inactive Publication Date: 2007-11-15
CONOPCO INC D B A UNILEVER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a new type of detergent that can be mixed with water and other ingredients to make a stable liquid detergent. This detergent contains a special type of surfactant called a succinate dimer, which helps to keep the detergent mixed together even when it is shaken. The technical effect of this new detergent is that it can be more effective in cleaning and can be used in a wider range of applications.

Problems solved by technology

Lack of clarity in such aqueous liquid detergent compositions can be the result of a number of factors.
Another cause of loss of clarity is potentially due to instability of one or more ingredients.
Such instability can be due to the presence of highly reactive species, such as bleach catalysts, for example, of the type used to catalyse bleaching by atmospheric oxygen.
However, they are relatively costly and do not really contribute to the leaning performance of the product.
However, these materials have the potential disadvantage of inducing colour instability at higher temperatures.
Thus, the use of hydrotropes has a cost penalty in formulation of the product.
The use of organic bases as stabilisers for soap can promote instability at high temperatures.

Method used

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  • Aqueous liquid cleaning compositions and their use
  • Aqueous liquid cleaning compositions and their use
  • Aqueous liquid cleaning compositions and their use

Examples

Experimental program
Comparison scheme
Effect test

example i

Method:

[0139]The additives A-D are post-dosed to liquids 1-4 and incorporated by mixing. All prepared liquids are physical stable and transparent at room temperature. A panel of experts examines the physical stability and transparency after 4 weeks of storage at 0 and 5° C. The observations are described in table 1-4 and the panel used the following terms to describe their observations.

[0140]Clear / no particles=transparent liquid without white particles, no difference with liquids stored at room temperature.

[0141]Clear / small particles=transparent liquid with white particles formed during storage. Hazy / no particles=during storage the liquid becomes not transparent but there are no particles formed.

[0142]Hazy / white particles=during storage the liquid becomes not transparent and there are white particles formed.

TABLE IThe physical stability of liquid 1 with differentlevels additives determined by a panel of experts after 4 weeksof storage at 0 and 5° C.additive(seePhysical stabilityPhys...

example 2

Method:

[0143]Additive C is post-dosed to liquid 5 and incorporated by mixing. All prepared liquids are physical stable and transparent at room temperature. A panel of experts examines the physical stability and transparency after 8 weeks of storage at 0 and 5° C.

[0144]The observations are described in table 5 and the panel used the following terms to describe theft observations.

[0145]Clear / no particles=transparent liquid without white particles, no difference with liquids stored at room temperature.

[0146]Clear / small particles=transparent liquid with white particles formed during storage. Hazy / no particles=during storage the liquid becomes not transparent but there are no particles formed.

[0147]Hazy / white particles=during storage the liquid becomes not transparent and there are white particles formed.

TABLE 5The physical stability of liquid 5 w / wo addition ofadditive C determined by a panel of experts after 8 weeks ofstorage at 0 and 5° C.levelPhysical stabilityPhysical stabilityAddit...

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Abstract

An isotropic aqueous liquid detergent composition comprising: a succinate dimer surfactant selected from alkyl and alkenyl succinate dimers in which two succinic acid moieties or derivatives thereof are joined by a (poly)alkyleneoxy bridge and each carboxylic acid group is independently in the free acid form, salt form or is esterified or is a corresponding amide group; and mixtures thereof; one or more other surfactants; and water.

Description

FIELD OF INVENTION[0001]The present invention relates to aqueous liquid cleaning compositions. It also relates to methods of using such compositions for the cleaning of fabrics.BACKGROUND OF INVENTION[0002]Aqueous liquid detergent compositions can generally be considered to fall into one of two categories, namely isotropic or structured. Structured compositions usually contain lamellar phases formed of surfactant and water, which cause them to be relatively viscous, shear thinning and often, to have solid suspending properties. Isotropic compositions, on the other hand, usually have a viscosity similar to that of water and are substantially Newtonian. In addition, consumers generally prefer isotropic compositions to be substantially transparent, or at least, translucent.[0003]Lack of clarity in such aqueous liquid detergent compositions can be the result of a number of factors. One such factor is the formation of micellar or more ordered phases. Another cause of loss of clarity is p...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C23G1/06
CPCC11D1/08C11D1/02
Inventor BEERS, OLAF CORNELIS PBROUWN, LILLIMARLENE FAUCIACALLAGHAN, IAN CHARLESOUWENDIJK-VRIJENHOEK, MAARTJESONMEZER, DERDIYOKVEERMAN, SIMON MARINUS
Owner CONOPCO INC D B A UNILEVER