Canadian Patents Database

Claims page

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Patent Document Number: 2409189

(54) English Title: DETERGENT COMPOSITIONS

(54) French Title: COMPOSITIONS DETERGENTES

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Claims:

Note: Claims are shown in the official language in which they were submitted.


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CLAIMS
1. A laundry detergent composition comprising surfactant,
builder, and optionally other detergent ingredients,
the composition characterised in that it comprises
(a) from 0,1 to 10 wt% of a cationic detergent
surfactant, and
(b) from 0.05 to 5 wt% of a compound of the formula I:
Image
wherein Y is H or OH, and X is H or a solubilising
cation, the ratio of cationic detergent surfactant to
compound of the formula I being within the range of
from 1:5 to 5:1.
2. A detergent composition as claimed in claim 1,
characterised in that the ratio of cationic detergent
surfactant to compound of the formula I is within the
range of from 0.5:2 to 5:1, preferably from 1:1 to 5:1.
3. A detergent composition as claimed in claim 1 or
claim 2, which is characterised in that it comprises:
(a) from 5 to 40 wt% of one or more detergent
surfactants selected from anionic, nonionic,
amphoteric and zwitterionic surfactants,
(b) from 0.1 to 10 wt% of cationic detergent
surfactant,


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(c) from 10 to 80 wt% of one or more detergency
builders,
(d) from 0.05 to 5 wt% of a compound of the formula I,
(e) optionally other detergent ingredients to 100 wt%.
4. A detergent composition as claimed in any preceding
claim, which is characterised in that it comprises from
0.2 to 2.5 wt%, preferably from 0.5 to 1.5 wt%, of the
compound of the formula I.
5. A detergent composition as claimed in any preceding
claim, characterised in that the compound of the
formula I is iminodisuccinic acid or a salt thereof,
preferably the sodium salt.
6. A detergent composition as claimed in any preceding
claim, characterised in that it comprises from 0.5 to
wt% of the cationic detergent surfactant.
7. A detergent composition as claimed in any preceding
claim, characterised in that the cationic detergent
surfactant is a quaternary ammonium compound of the
formula II
R1R2R3R4N+ X- (II)
wherein R1 is a C8-C22 alkyl group; R2 is a methyl
group; and R3 and R4, which may be the same or
different, are methyl or hydroxyethyl groups; and X-
is a solubilising anion.


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8. A detergent composition as claimed in claim 7,
characterised in that the cationic detergent surfactant
is a compound of the formula II in which R1 is a C12-C14
alkyl group, R2 and R3 are methyl groups, R4 is a 2-
hydroxyethyl group, and X- is a chloride ion.
9. A detergent composition as claimed in any preceding
claim, characterised in that it is in particulate form.
10. A detergent composition as claimed in any preceding
claim, characterised in that it comprises one or more
detergent ingredients selected from bleaches, bleach
activators, bleach stabilisers, enzymes,
antiredeposition polymers, soil release polymers, dye
transfer inhibiting polymers, solvents, hydrotropes,
fluorescers, photobleaches, foam boosters, foam
controllers (antifoams), sodium carbonate, sodium
bicarbonate, sodium silicate, sodium sulphate, calcium
chloride, other inorganic salts, fabric conditioning
compounds, and perfumes.
11. A method of removing soils and stains from textile
fabrics, characterised in that it comprises laundering
the fabrics by hand or machine in a wash liquor
containing a detergent composition as claimed in any
one of claims 1 to 10.
12. Use of a compound of the formula I:
Image


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wherein Y is H or OH, and X is H or a solubilising
cation, in an amount of from 0.05 to 5 wt%, to improve
the soil and stain removal performance of a laundry
detergent composition containing from 0.1 to 10 wt% of
cationic detergent surfactant.