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US 10,723,976 B2Granted
Fabric softening compositions comprising an esterquat and bacterial nuclease enzyme
AssigneeThe Procter & Gamble Company
InventorsNeil Joseph Lant, Klaus Gori
Life of this patent
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Abstract
A fabric softener composition comprising a quaternary ammonium ester fabric softener compound and an enzyme selected from specific nuclease enzymes, galactanase enzymes and mannanase enzymes. Also, methods of treating a fabric comprising a laundering step, optional rinsing steps and a rinse-treatment step in which the fabric is treated with an aqueous rinse liquor comprising the composition.
Claims6
A fabric softener composition comprising:
- (i) from 2 to 50 wt % fabric softener compound comprising a quaternary ammonium ester compound having the following formula:
- {R2(4-m)—N+—[X—Y—R1]m}A− wherein:
- m is 1, 2 or 3 with proviso that the value of each m is identical;
- each R1 is independently hydrocarbyl, or branched hydrocarbyl group;
- each R2 is independently a C1-C3 alkyl or hydroxy alkyl group;
- each X is independently (CH2)n, CH2-CH(CH3)- or CH—(CH3)-CH2- and
- each n is independently 1, 2, 3 or 4;
- each Y is independently —O—(O)C— or —C(O)—O—;
- A- is independently selected from the group consisting of chloride, methyl sulfate, and ethyl sulfate;
- with the proviso that when Y is —O—(O)C—, the number of carbons in each R1 is from 13 to 21;
- and
- (ii) a soil-weakening enzyme comprising a bacterial nuclease enzyme, wherein the bacterial nuclease enzyme is from a Bacillus species selected from the group consisting of Bacillus sp-62451, Bacillus horikoshii, Bacillus sp-62520, Bacillus sp-16840, Bacillus sp-62668, Bacillus sp-13395, Bacillus horneckiae, Bacillus sp-11238, Bacillus cibi, Bacillus sp-18318, Bacillus idriensis, Bacillus algicola, Bacillus vietnamensis, Bacillus hwajinpoensis, Bacillus indicus, Bacillus marisflavi, Bacillus luciferensis, Bacillus sp. SA2-6, Bacillus sp-62738, Bacillus pumilus, Bacillus sp-62490, Bacillus sp-13390, Bacillus sp-62738, Bacillus sp-62599, Bacillus akibai, bacterial nucleases.
9 more elements
Dependencies are inferred from the claim text.