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US 4,661,288 AGranted
Zwitterionic compounds having clay soil removal/anti/redeposition properties useful in detergent compositions
AssigneeThe Procter & Gamble Company
InventorsDonn N. Rubingh, Eugene P. Gosselink
Life of this patent
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Abstract
Water-soluble zwitterionic compounds having clay soil removal/anti-redeposition properties. The zwitterionic compounds are selected from monozwitterionic compounds, dizwitterionic compounds, polyzwitterionic compounds, and zwitterionic polymers. These zwitterionic compounds are useful in detergent compositions at from about 0.05 to about 95% by weight. In addition to the zwitterionic compounds, the detergent compositions further comprise from about 1 to about 75% by weight of a nonionic, anionic, ampholytic, zwitterionic, or cationic detergent surfactant or mixture thereof.
Claims28
A water-soluble zwitterionic compound having clay soil removal/anti-redeposition properties selected from the group consisting of:
- (1) dizwitterionic compounds having the formula:
- ##STR27## (2) polyzwitterionic compounds having the formula:
- ##STR28## (3) zwitterionic polymers having the general formula:
- ##STR29## and (4) mixtures thereof wherein A.sup.1 is ##STR30## R is H or C.sub.1 -C.sub.4 alkyl or hydroxyalkyl;
- R.sup.1 is C.sub.2 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 -C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O--N bonds are formed;
- each R.sup.2 is C.sub.1 -C.sub.4 alkyl or hydroxyalkyl, --(R.sup.5 O).sub.k --H, the moiety --L--X, or two R.sup.2 together form the moiety --(CH.sub.2 CH.sub.2).sub.r --A.sup.2 --(CH.sub.2 CH.sub.2).sub.s --, wherein A.sup.2 is --O-- or --CH.sub.2 --, r is 1 or 2, s is 1 or 2, and r+s is 3 or 4;
- R.sup.3 is a substituted C.sub.3 -C.sub.12 alkyl, hydroxyalkyl, alkenyl, aryl or alkaryl group having p substitution sites;
- R.sup.4 is C.sub.1 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 - C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided no O--O or O--N bonds are formed;
- R.sup.5 is C.sub.2 -C.sub.3 alkylene or hydroxyalkylene;
- L is a hydrophilic chain which contains the polyoxyalkylene moiety --[(R.sup.6 O).sub.m (CH.sub.2 CH.sub.2 O).sub.n ]--, wherein R.sup.6 is C.sub.3 -C.sub.4 alkylene or hydroxyalkylene and m and n are numbers such that the moiety --(CH.sub.2 CH.sub.2 O).sub.n -- comprises at least about 50% by weight of said polyoxyalkylene moiety;
- M.sup.1 is an N.sup.+ or N group;
- each M.sup.2 is an N.sup.+ or an N group and at least one M.sup.2 is an N.sup.+ group;
- X is the anionic group SO.sub.3.sup.- or a mixture of said anionic group and the nonionic group H;
- d is 2 when M.sup.1 or M.sup.2 is N.sup.+ and is 1 when M.sup.1 or M.sup.2 is N;
- e is 1 when M.sup.2 is N.sup.+ and 0 when M.sup.2 is N;
- f is 3 when M.sup.2 is N.sup.+ and is 2 when M.sup.2 is N;
- k is from 1 to about 100;
- for said dizwitterionic compounds, n is at least about 6;
- for said polyzwitterionic compounds and zwitterionic polymers, n is at least about 3;
- p is from 3 to 8;
- q is 1 or 0;
- t is 1 or 0, provided t is 1 when q is 1;
- w is 1 or 0;
- and x+y+z is from 2 to 9.
21 more elements
A detergent composition, which comprises:
- (a) from about 1 to about 75% by weight of a detergent surfactant selected from the group consisting of nonionic, anionic, ampholytic, zwitterionic and cationic surfactants and mixtures thereof;
- and
- (b) from about 0.05 to about 95% by weight of a water-soluble zwitterionic compound having clay soil removal/anti-redeposition properties selected from the group consisting of:
- (1) dizwitterionic compounds having the formula:
- ##STR32## (2) polyzwitterionic compounds having the formula:
- ##STR33## (3) zwitterionic polymers having the general formula:
- ##STR34## and (4) mixtures thereof wherein A.sup.1 is ##STR35## R is H or C.sub.1 -C.sub.4 alkyl or hydroxyalkyl;
- R.sup.1 is C.sub.2 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 -C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O--N bonds are formed;
- each R.sup.2 is C.sub.1 -C.sub.4 alkyl or hydroxyalkyl, --(R.sup.5 O).sub.k --H, the moiety --L--X or two R.sup.2 together form the moiety --(CH.sub.2 CH.sub.2).sub.r --A.sup.2 --(CH.sub.2 CH.sub.2).sub.s --, wherein A.sup.2 is --O-- or --CH.sub.2 --, r is 1 or 2, s is 1 or 2, and r+s is 3 or 4;
- R.sup.3 is a substituted C.sub.3 -C.sub.12 alkyl, hydroxyalkyl, alkenyl, aryl or alkaryl group having p substitution sites;
- R.sup.4 is C.sub.1 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 -C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided no O--O or O--N bonds are formed;
- R.sup.5 is C.sub.2 -C.sub.3 alkylene or hydroxyalkylene;
- L is a hydrophilic chain which contains the polyoxyalkylene moiety --[(R.sup.6 O).sub.m (CH.sub.2 CH.sub.2 O).sub.n ]--, wherein R.sup.6 is C.sub.3 -C.sub.4 alkylene or hydroxyalkylene and m and n are number such that the moiety --(CH.sub.2 CH.sub.2 O).sub.n -- comprises at least about 50% by weight of said polyoxyalkylene moiety;
- M.sup.1 is an N.sup.+ or N group;
- each M.sup.2 is an N.sup.+ or N group and at least one M.sup.2 is an N.sup.+ group;
- X is the anionic group SO.sub.3.sup.- or a mixture of said anionic group and the nonionic group H;
- d is 2 when M.sup.1 or M.sup.2 is N.sup.+ and is 1 when M.sup.1 or M.sup.2 is N;
- e is 1 when M.sup.2 is N.sup.+ and is 0 when M.sup. 2 is N;
- f is 3 when M.sup.2 is N.sup.+ and is 2 when M.sup.2 is N;
- k is from 2 to about 100;
- for said dizwitterionic compounds, n is at least about 6;
- for said polyzwitterionic compounds and zwitterionic polymers, n is at least about 3;
- p is from 3 to 8;
- q is 1 or 0;
- t is 1 or 0, provided that t is 1 when q is 1;
- w is 1 or 0;
- and x+y+z is from 2 to 9.
24 more elements
A laundry detergent composition, which comprises:
- (a) from about 10 to about 50% by weight of an anionic detergent surfactant;
- and
- (b) from about 0.1 to about 10% by weight of a water-soluble zwitterionic compound having clay soil removal/anti-redeposition properties selected from the group consisting of:
- (1) dizwitterionic compounds having the formula:
- ##STR36## (2) polyzwitterionic compounds having the formula:
- ##STR37## (3) zwitterionic polymers having the general formula:
- ##STR38## and (4) mixtures thereof wherein A.sup.1 is ##STR39## R is H or C.sub.1 -C.sub.4 alkyl or hydroxyalkyl;
- R.sup.1 is C.sub.2 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 -C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O--N bonds are formed;
- each R.sup.2 is C.sub.1 -C.sub.4 alkyl or hydroxyalkyl, --(R.sup.5 O).sub.k --H, the moiety --L--X or two R.sup.2 together from the moiety --(CH.sub.2 CH.sub.2).sub.r --A.sup.2 --(CH.sub.2 CH.sub.2).sub.s --, wherein A.sup.2 is --O-- or --CH.sub.2 --, r is 1 or 2, s is 1 or 2, and r+s is 3 or 4;
- R.sup.3 is a substituted C.sub.3 -C.sub.12 alkyl, hydroxyalkyl, alkenyl, aryl or alkaryl group having p substitution sites;
- R.sup.4 is C.sub.1 -C.sub.12 alkylene, hydroxyalkylene, alkenylene, arylene, alkarylene, or a C.sub.2 -C.sub.3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided no O--O or O--N bonds are formed;
- R.sup.5 is C.sub.2 -C.sub.3 alkylene or hydroxyalkylene;
- L is a hydrophilic chain which contains the polyoxyalkylene moiety --[R.sup.6 O).sub.m (CH.sub.2 CH.sub.2 O).sub.n ]--, wherein R.sup.6 is C.sub.3 -C.sub.4 alkylene or hydroxyalkylene and m and n are numbers such that the moiety --(CH.sub.2 CH.sub.2 O).sub.n -- comprises at least about 50% by weight of said polyoxyalkylene moiety;
- M.sup.1 is an N.sup.+ or N group;
- each M.sup.2 is an N.sup.+ or N group and at least one M.sup.2 is an N.sup.+ group;
- X is the anionic group SO.sub.3.sup.- or a mixture of said anionic group and the nonionic group H;
- d is 2 when M.sup.1 or M.sup.2 is N.sup.+ and is 1 when M.sup.1 or M.sup.2 is N;
- e is 1 when M.sup.2 is N.sup.+ and is 0 when M.sup.2 is N;
- f is 3 when M.sup.2 is N.sup.30 and is 2 when M.sup.2 is N;
- k is from 1 to about 100;
- for said dizwitterionic compounds, n is at least about 6;
- for said polyzwitterionic compounds and zwitterionic polymers, n is at least about 3;
- p is from 3 to 8;
- q is 1 or 0;
- t is 1 or 0, provided that t is 1 when q is 1;
- w is 1 or 0;
- and x+y is from 2 to 9.
24 more elements
Dependencies are inferred from the claim text.