US4786431A — Liquid laundry detergent-bleach composition and m…

Claim 1

Independent Claim 149 words

A non-aqueous liquid detergent composition capable of washing and bleaching soiled fabrics at temperatures as low as about 40° C. or less which comprises a liqiud phase comprising nonionic surfactant and a mono or poly (C 2 to C 3 ) alkylene glycol mono (C 1 -C 5 ) alkyl ether in an amount of 30 to 70%, a water-soluble inorganic peroxide bleaching agent in an effective amount of up to 25%, a bleach activator to lower the temperature at which the bleaching agent will liberate hydrogen peroxide in aqueous solution in an effective amount of up to 10%, proteolytic enzyme in an amount of from about 0.7 to 2 percent by weight and from about 0.01 to 0.4 percent by weight, based on the total composition, of an hydroxylamine salt capable of inhibiting the enzyme-induced decomposition of the bleaching agent, said enzyme being present in the soiled fabrics.

Claim 2

Dependent Claim 149 words

A non-aqueous liquid detergent composition capable of washing and bleaching soiled fabrics at temperatures as low as about 40° C. or less which comprises a liqiud phase comprising nonionic surfactant and a mono or poly (C 2 to C 3 ) alkylene glycol mono (C 1 -C 5 ) alkyl ether in an amount of 30 to 70%, a water-soluble inorganic peroxide bleaching agent in an effective amount of up to 25%, a bleach activator to lower the temperature at which the bleaching agent will liberate hydrogen peroxide in aqueous solution in an effective amount of up to 10%, proteolytic enzyme in an amount of from about 0.7 to 2 percent by weight and from about 0.01 to 0.4 percent by weight, based on the total composition, of an hydroxylamine salt capable of inhibiting the enzyme-induced decomposition of the bleaching agent, said enzyme being present in the soiled fabrics.

Claim 3

Dependent Claim 54 words

The compostiion of claim 1 wherein the bleaching agent comprises sodium perborate monohydrate in an effective amount of up to 25%, the bleach activator is N,N,N',N'-tetra-acetyl ethylene diamine in an effective amount of up to 10% and the hydroxylamine salt is hydroxylamine sulfate or hydroxylamine hydrochloride in an amount of about 0.02 to 0.2%.

Claim 4

Dependent Claim 23 words

The composition of claim 1 which further comprises about 20 to 50% of a detergent builder salt suspended in the liquid nonionic surfactant.

Claim 5

Dependent Claim 105 words

A non-aqueous liquid laundry detergent composition comprising about 30 to 70% by weight of a liquid phase comprising a liquid nonionic surfactant, about 20 to 50% by weight of detergent builder salt suspended in the liquid phase, about 2 to 20% by weight of an alkali metal perborate bleaching agent, about 0.1 to 10% by weight of a bleach activator to lower the temperature at which the bleaching agent will liberate hydrogen peroxide in aqueous solution, about 0.7 to 2% by weight of proteolytic enzyme, and about 0.01 to 0.4% by weight of hydroxylamine salt capable of inhibiting the enzyme-induced decomposition of the bleaching agent.

Claim 6

Dependent Claim 105 words

A non-aqueous liquid laundry detergent composition comprising about 30 to 70% by weight of a liquid phase comprising a liquid nonionic surfactant, about 20 to 50% by weight of detergent builder salt suspended in the liquid phase, about 2 to 20% by weight of an alkali metal perborate bleaching agent, about 0.1 to 10% by weight of a bleach activator to lower the temperature at which the bleaching agent will liberate hydrogen peroxide in aqueous solution, about 0.7 to 2% by weight of proteolytic enzyme, and about 0.01 to 0.4% by weight of hydroxylamine salt capable of inhibiting the enzyme-induced decomposition of the bleaching agent.

Claim 7

Dependent Claim 28 words

The detergent composition of claim 4 wherein the hydroxylamine salt is hydroxylamine sulfate or hydroxylamine hydrochloride and is in an amount of about 0.04 to 0.2% by weight.

Claim 8

Dependent Claim 21 words

The detergent composition of claim 4 wherein the detergent builder salt comprises about 25-40% by weight of an alkali metal tripolyphosphate.

Claim 9

Dependent Claim 120 words

A non-aqueous liquid laundry detergent-bleaching composition comprising a liquid phase comprising liquid nonionic surfactant, a detergent builder salt suspended in the liquid phase, an effective amount of a water-soluble inorganic peroxide salt bleaching agent selected from the group consisting of perborate, percarbonate, perphosphate and persulfate, an effective amount of a bleach activator compound which will react with the bleaching agent in an aqueous wash bath to form a peroxy bleach agent at a temperature of about 40° C. or less, an effective amount of a proteolytic enzyme, and an effective amount in the range of from about 0.01 to about 0.4% by weight of the composition of an hydroxylamine salt to inhibit enzyme-induced decomposition of the peroxide salt bleaching agent.

Claim 10

Dependent Claim 120 words

A non-aqueous liquid laundry detergent-bleaching composition comprising a liquid phase comprising liquid nonionic surfactant, a detergent builder salt suspended in the liquid phase, an effective amount of a water-soluble inorganic peroxide salt bleaching agent selected from the group consisting of perborate, percarbonate, perphosphate and persulfate, an effective amount of a bleach activator compound which will react with the bleaching agent in an aqueous wash bath to form a peroxy bleach agent at a temperature of about 40° C. or less, an effective amount of a proteolytic enzyme, and an effective amount in the range of from about 0.01 to about 0.4% by weight of the composition of an hydroxylamine salt to inhibit enzyme-induced decomposition of the peroxide salt bleaching agent.

Claim 11

Dependent Claim 17 words

The composition of claim 7 wherein the hydroxylamine salt is hydroxylamine sulfate, hydroxylamine hydrochloride, or hydroxylamine hydrobromide.

Claim 12

Dependent Claim 30 words

The composition of claim 7 wherein the bleach activator compound comprises N,N,N',N'-tetraacetylethylene diamine and is present in an amount of from about 0.1 to 8% by weight of the composition.

Claim 13

Dependent Claim 141 words

A non-aqueous liquid laundry detergent composition consisting essentially of about 40 to 60% by weight of a liquid nonionic surfactant and a viscosity-controlling and gel-inhibiting compound of the formula ##STR5## where R is alkyl of 2 to 5 carbon atoms, R' is hydrogen or methyl, and n is a number from 2 to 4 on average, wherein the weight ratio of nonionic surfactant to said viscosity-controlling and gel-inhibiting compound being from 50:1 to 2:1, about 20 to 50% by weight of detergent builder salt suspended in the liquid phase, about 2 to 20% by weight of an alkali metal perborate bleaching agent about 0.1-8% by weight of tetraacetylene diamine bleach activator, about 0.7 to 2% by weight of proteolytic enzyme, and about 0.01 to 0.4% by weight of hydroxylamine salt capable of inhibiting the enzyme induced decomposition of the bleaching agent.

Claim 14

Dependent Claim 141 words

A non-aqueous liquid laundry detergent composition consisting essentially of about 40 to 60% by weight of a liquid nonionic surfactant and a viscosity-controlling and gel-inhibiting compound of the formula ##STR5## where R is alkyl of 2 to 5 carbon atoms, R' is hydrogen or methyl, and n is a number from 2 to 4 on average, wherein the weight ratio of nonionic surfactant to said viscosity-controlling and gel-inhibiting compound being from 50:1 to 2:1, about 20 to 50% by weight of detergent builder salt suspended in the liquid phase, about 2 to 20% by weight of an alkali metal perborate bleaching agent about 0.1-8% by weight of tetraacetylene diamine bleach activator, about 0.7 to 2% by weight of proteolytic enzyme, and about 0.01 to 0.4% by weight of hydroxylamine salt capable of inhibiting the enzyme induced decomposition of the bleaching agent.

Claim 15

Dependent Claim 70 words

The detergent composition of claim 10 wherein the liquid nonionic surfactant is comprised of C 10 to C 18 fatty alcohol ethoxylated with from 3 to 12 moles of a C 2 to C 3 alkylene oxide per mole of fatty alcohol and the compound of the formula is diethylene glycol monobutylether, and the detergent builder salt comprises from about 25 to 40% by weight of an alkali metal tripolyphosphate.

Claim 16

Dependent Claim 25 words

A method for cleaning and bleaching soiled fabrics which comprises contacting the soiled fabrics with the composition of claim 1 in an aqueous wash bath.

Claim 17

Dependent Claim 18 words

The method of claim 12 wherein the aqueous wash bath has temperature of about 40° C. or less.

Claim 18

Dependent Claim 25 words

A method for cleaning and bleaching soiled fabrics which comprises contacting the soiled fabrics with the composition of claim 4 in an aqueous wash bath.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-11-22	1992-05-23	1992-11-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-11-22	1996-05-23	1996-11-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-11-22	2000-05-23	2000-11-22	$7700.00	Window Closed / Lapsed

Liquid laundry detergent-bleach composition and method of use

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