Color-safe bleach boosters, compositions and laundry methods employing same
First Claim
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1. A bleaching composition comprising:
- from about 0.01% to about 60% by weight of a peroxygen source andfrom about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3, and mixtures thereof, said bleach booster has the formula;
##STR29## wherein R1 -R3 are moieties having a total charge of from about 0 to about -1;
R1 and R2 form part of a common ring;
T is selected from the group consisting of;
--(CH2)b -- wherein b is from about 1 to about 8, --(CH(R5))-- wherein R5 is C1 -C8 alkyl, --CH2 (C6 H4)--, ##STR30## and --(CH2)d (E)(CH2)f -- wherein d is from 2 to 8, f is from 1 to 3 and E is --C(O)O--, --C(O)NR6 -- or;
##STR31## wherein R6 is H or C1 -C4 alkyl;
Z is covalently bonded to T; and
Z is selected from the group consisting of --CO2-, --SO3- and --OSO3- ; and
a is either 1 or 2.
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Abstract
Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes. Also provided is a laundry additive product including zwitterionic imines and anionic imine polyions with a net negative charge as bleach boosters. A method for laundering a fabric employing the bleach boosters of the present invention is also disclosed.
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Citations
31 Claims
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1. A bleaching composition comprising:
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from about 0.01% to about 60% by weight of a peroxygen source and from about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3, and mixtures thereof, said bleach booster has the formula;
##STR29## wherein R1 -R3 are moieties having a total charge of from about 0 to about -1;
R1 and R2 form part of a common ring;
T is selected from the group consisting of;
--(CH2)b -- wherein b is from about 1 to about 8, --(CH(R5))-- wherein R5 is C1 -C8 alkyl, --CH2 (C6 H4)--, ##STR30## and --(CH2)d (E)(CH2)f -- wherein d is from 2 to 8, f is from 1 to 3 and E is --C(O)O--, --C(O)NR6 -- or;
##STR31## wherein R6 is H or C1 -C4 alkyl;
Z is covalently bonded to T; and
Z is selected from the group consisting of --CO2-, --SO3- and --OSO3- ; and
a is either 1 or 2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A zwitterionic laundry bleach booster compound selected from:
- ##STR35##
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16. A method for laundering a fabric, said method comprising:
a step of contacting a fabric to be laundered with a laundry solution, said laundry solution comprising from about 0.01% to about 60% by weight of a peroxygen source and from about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3, and mixtures thereof, said bleach booster has the formula;
##STR36## wherein R1 -R3 are moieties having a total charge of from about 0 to about -1;
R1 and R2 form part of a common ring;
T is selected from the group consisting of;
--(CH2)b -- wherein b is from about 1 to about 8, --(CH(R5))-- wherein R5 is C1 -C8 alkyl, --CH2 (C6 H4)--, ##STR37## and --(CH2)d (E)(CH2)f -- wherein d is from 2 to 8, f is from 1 to 3 and E is --C(O)O--, --C(O)NR6 -- or;
##STR38## wherein R6 is H or C1 -C4 alkyl;
Z is covalently bonded to T; and
Z is selected from the group consisting of --CO2-, --SO3- and --OSO3- ; and
a is either 1 or 2.- View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A laundry additive product comprising:
a laundry additive being in dosage form for addition to a laundry solution, said additive comprising a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3 and mixtures thereof, said bleach booster has the formula;
##STR40## wherein R1 -R3 are moieties having a total charge of from about 0 to about -1;
R1 and R2 form part of a common ring;
T is selected from the group consisting of;
--(CH2)b -- wherein b is from about 1 to about 8, --(CH(R5))-- wherein R5 is C1 -C8 alkyl, --CH2 (C6 H4)--, ##STR41## and --(CH2)d (E)(CH2)f -- wherein d is from 2 to 8, f is from 1 to 3 and m is --C(O)O--, --C(O)NR6 -- or;
##STR42## wherein R6 is H or C1 -C4 alkyl;
Z is covalently bonded to T; and
Z is selected from the group consisting of --CO2-, --SO3- and --OSO3- ; and
a is either 1 or 2.- View Dependent Claims (26, 27, 28, 29, 30)
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31. A laundry additive product comprising:
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a laundry additive, said additive comprising from about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3 and mixtures thereof, and from about 5% to about 90% by weight of a filler or carrier for said booster, said filler or carrier being selected from the following;
sulfates, carbonates, silicates, talc, clay, water, monohydric alcohols, polyols or diols, andwherein said bleach booster has the formula;
##STR44## wherein R1 -R3 are moieties having a total charge of from about 0 to about -1;
R1 and R2 form part of a common ring;
T is selected from the group consisting of;
--(CH2)b -- wherein b is from about 1 to about 8, --(CH(R5))-- wherein R5 is C1 -C8 alkyl, --CH2 (C6 H4)--, ##STR45## and --(CH2)d (E)(CH2)f -- wherein d is from 2 to 8, f is from 1 to 3 and E is --C(O)O--, --C(O)NR6 -- or;
##STR46## wherein R6 is H or C1 -C4 alkyl;
Z is covalently bonded to T; and
Z is selected from the group consisting of --CO2-, --SO3- and and a is either 1 or 2.
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Specification