Liquid laundry detergent compositions with silicone blends as fabric care agents
First Claim
1. An aqueous liquid laundry detergent composition suitable for cleaning and imparting fabric care benefits to fabrics laundered using such a composition, which composition comprises:
- A) at least one surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof;
B) droplets of a blend of silicone materials, which blend comprises;
i) an amine or ammonium group-containing functionalized polysiloxane material which;
a) has been prepared by a process which intrinsically leaves curable/reactive groups in the functionalized polysiloxane material which is produced;
b) has a molar ratio of curable/reactive group-containing silicon atoms to terminal silicon atoms containing no reactive/curable groups which is less than about 30%;
c) has a nitrogen content of from about 0.05% to about 0.30% by weight; and
d) has viscosity at 20°
C. ranging from about 0.00002 m2/s to about 0.2 m2/s; and
ii) a nitrogen-free, non-functionalized polysiloxane material having a viscosity of from about 0.01 m2/s to about 2.0 m2/s and present in an amount such that within said blend the weight ratio of functionalized polysiloxane material to non-functionalized polysiloxane material ranges from about 100;
1 to about 1;
100; and
C) at least one additional non-silicone laundry adjunct selected from the group consisting of dye transfer inhibiting agents, optical brighteners, and combinations thereof.
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Accused Products
Abstract
The invention is directed to aqueous liquid laundry detergent compositions for cleaning and imparting fabric care benefits to fabrics laundered therewith. Such compositions comprise (A) at least one detersive surfactant; (B) droplets of a silicone blend comprising a nitrogen-containing amino or ammonium functionalized polysiloxane and a nitrogen-free non-functionalized polysiloxane; and (C) at least one additional non-silicone laundry adjunct selected from detersive enzymes, dye transfer inhibiting agents, optical brighteners, suds suppressors and combinations thereof. The functionalized polysiloxane component of the silicone blend has a relatively low, i.e., less than 30 mol %, content of reactive/curable groups, a nitrogen content which ranges from 0.05% to 0.30% by weight and a viscosity which ranges from 0.00002 m2/s to 0.2 m2/s. The nitrogen-free non-functionalized polysiloxane material ranges in viscosity from 0.01 m2/sec to 2.0 m2/sec. The silicone blend is preferably used in a pre-formed emulsion which can be added to the balance of the detergent composition to form the droplets of the silicone blend which are dispersed in the detergent composition.
41 Citations
19 Claims
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1. An aqueous liquid laundry detergent composition suitable for cleaning and imparting fabric care benefits to fabrics laundered using such a composition, which composition comprises:
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A) at least one surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof; B) droplets of a blend of silicone materials, which blend comprises; i) an amine or ammonium group-containing functionalized polysiloxane material which; a) has been prepared by a process which intrinsically leaves curable/reactive groups in the functionalized polysiloxane material which is produced; b) has a molar ratio of curable/reactive group-containing silicon atoms to terminal silicon atoms containing no reactive/curable groups which is less than about 30%; c) has a nitrogen content of from about 0.05% to about 0.30% by weight; and d) has viscosity at 20°
C. ranging from about 0.00002 m2/s to about 0.2 m2/s; andii) a nitrogen-free, non-functionalized polysiloxane material having a viscosity of from about 0.01 m2/s to about 2.0 m2/s and present in an amount such that within said blend the weight ratio of functionalized polysiloxane material to non-functionalized polysiloxane material ranges from about 100;
1 to about 1;
100; andC) at least one additional non-silicone laundry adjunct selected from the group consisting of dye transfer inhibiting agents, optical brighteners, and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An oil-in-water emulsion of silicone-based fabric care agents, which emulsion is suitable for incorporation into aqueous liquid laundry detergent compositions, said emulsion comprising:
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A) from about 5% to about 60% by weight of the emulsion of a blend of miscible silicone materials, which blend comprises; i) an amine or ammonium group-containing functionalized polysiloxane material which; a) has been prepared by a process which intrinsically leaves curable/reactive groups in the functionalized polysiloxane material which is produced; b) has a molar ratio of curable/reactive group-containing silicon atoms to terminal silicon atoms containing no reactive/curable groups which is less than about 30%; c) has a nitrogen content of from about 0.05% to about 0.30% by weight; and d) has viscosity at 20°
C. ranging from about 0.00002 m2/s to about 0.2 m2/s; andii) a nitrogen-free, non-functionalized polysiloxane material having a viscosity of from about 0.01 m2/s to about 2.0 m2/s and present in an amount such that within said blend the weight ratio of functionalized polysiloxane material to non-functionalized polysiloxane material ranges from about 100;
1 to about 1;
100;B) an emulsifier present to the extent that the weight ratio of silicone blend to emulsifier ranges from about 200;
1 to about 1;
1; andC) water present in an amount such that the weight ratio of silicone blend to water ranges from about 1;
50 to about 10;
1;wherein said silicone blend is dispersed within said emulsion in the form of droplets ranging in median size from about 0.5 to about 300 microns; and D) at least one additional non-silicone laundry adjunct selected from the group consisting of dye transfer inhibiting agents, optical brighteners, and combinations thereof.
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17. An aqueous liquid laundry detergent composition suitable for cleaning and imparting fabric care benefits to fabrics laundered using such a composition, which composition comprises at least about 4% water and:
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A) at least about 5% of at least one surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof; B) from about 0.01% to about 10% of droplets of a blend of highly miscible silicone materials, which blend comprises; an amine or ammonium group-containing functionalized polysiloxane material having nitrogen content in the range from about 0.001% to about 0.5% and a curable-reactive group content, expressed as a molar ratio of curable-reactive group containing silicon atoms to terminal silicone atoms containing no curable-reactive groups, of not more than about 0.3; a nitrogen-free, non-functionalized polysiloxane material having a viscosity of from about 0.01 m2/s to about 2.0 m2/s and present in an amount such that within said blend the weight ratio of functionalized polysiloxane material to non-functionalized polysiloxane material ranges from about 1;
1.1 to about 1;
1000;C) from about 0.00001 to about 0.1% of fragrant compounds selected from perfumery aldehydes and ketones; and D) at least about 0.1% of liquid laundry detergent adjuncts selected from one or more of, preferably at least two or more of; from 1% to 80% by weight of a detergent builder, chelant or mixture thereof; from 0.0001% to 2% by weight of a detersive enzyme component; from 0.01% to 10% by weight of a dye transfer agent; from 0.0001% to about 1% of a pre-compounded silicone/silica antifoam agent; and from 0.00001% to about 0.5% of a non-staining dye or pigment; and from 0.000001% to about 0.2% of an optical brightener wherein at least one of the dye transfer inhibiting agent and/or the optical brightener is present in the composition. - View Dependent Claims (18)
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19. A method for preparing an aqueous liquid detergent comprising (a) fragrant compounds selected from perfumery aldehydes and ketones and (b) fabric care actives comprising silicones having functional groups that react therewith;
- said method comprising;
I) providing functional silicone materials selected from the group consisting of aminosilicones, ammonium functional silicones, substituted ammonium functional silicones and mixtures thereof wherein said functional silicones are miscible with non-functional silicones by virtue of said functional silicones having a nitrogen content in the range from about 0.001 to about 0.5% percent by weight of said functional silicones;
said functional silicones having a molar ratio of curable/reactive group containing silicon atoms to terminal silicone atoms containing no curable/reactive groups of not more than 0.3;II) blending said functional silicones with non-functional polysiloxane materials that are fully miscible therewith and have viscosity in the range from about 0.01 to about 2 m2/s, optionally but preferably in the presence of at least one emulsifier and optionally but preferably with one or more silicone emulsion adjuncts; and III) combining the product of step (II) with an aqueous liquid detergent base formulation comprising at least about 4% water, at least 5% of a surfactant, at least one of a dye transfer inhibiting agent and/or an optical brightener, and said fragrant compounds selected from the group consisting of perfumery aldehydes and ketones at a level of from about 0.00001 to about 0.1% such that the final composition comprises discrete droplets of the miscible silicones having a mean particle size of no more than about 200 micron.
- said method comprising;
Specification