Amphoteric agents as modifiers of lamellar phases of detergents or liquid or pasty cosmetic compositions
First Claim
1. A method for modifying the rheological properties of a detergent or cosmetic composition containing a lamellar phase, said method comprising adding to said composition an amphoteric copolymer comprising at least a first type of monomeric unit being derived from one or more ethylenically unsaturated monomers having an anionic charge, said second type of monomeric unit being derived from one or more ethylenically unsaturated monomers having a cationic charge, with one at least of said cationic charged monomers having a surface-active structure, and optionally comprising a third type of monomeric unit derived from one or more ethylenically unsaturated nonionic monomers, andwherein said copolymer has the formula (I):
- ##STR10## in which;
R1 is H or COOH,R2 is H or CH3,R3 is a group having at least an acidic function which may be totally or partially neutralized, anda is a number such that the weight percentage of the anionic monomeric unit, based on the total weight of all monomers is, limits included, between 95 and 15;
R4 is ##STR11## in which R4 '"'"' is an alkyl or alkoxy radical having 1 to 4 carbon atoms,R4 " is H or alkyl radical having 1 to 4 carbon atoms,R4 '"'"'" is an alkyl radical having 1 to 4 carbon atoms,R5 is H or CH3, andb is a number such that the weight percentage of the nonionic monomeric unit, based on the total weight of all monomers is, limits included, between 0 and 65;
A is a monomeric unit derived from a polymerizable unsaturated radical selected from the group consisting of acrylic, methacrylic, maleic, itaconic, crotonic, and vinylphthalic esters, maleic, itaconic, vinylphthalic hemiesters, acrylurethane, methacrylurethane, α
,α
-dimethyl-m-isopropenyl benzylurethane, allylurethane, allylic ethers, substituted or unsubstituted acrylamides, substituted or unsubstituted methacrylamides, and vinyl groups;
R6 is H or CH3,n=2 to 30,R7 is an alkyl group having 1 to 4 carbon atoms,Z is N or S,X is a sulfate or halogen counter-ion and when Z is N;
R8 is an alkyl chain having 8 to 22 carbon atoms or a linking group to another polymeric chain of formula (I) having the following formula;
##STR12## with n=2 to 30, where A has the same meaning as above and the two bonds from A are connected to two monomer units in another polymer chain of formula (I), andR9 is an alkyl chain having 8 to 22 carbon atoms and when Z is S;
R8 does not existR9 is an alkyl chain having 8 to 22 carbon atoms, and c'"'"' is a number such that the weight percentage, based on the total weight of all monomers, of the cationic charged monomer having a surface-active structure, is, limits included, between 5 and 60 with c'"'"'+c"=c;
c representing the weight percentage of all cationic monomers and varying between 5 and 60, limits included; and
B is a cationic monomeric unit,c" is a number such that the weight percentage, based on the total weight of all monomers, of the cationic monomer which does not contain a surface-active structure is, limits included, between 0 and 55.
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Accused Products
Abstract
Amphoteric copolymers of general formula:
(X).sub.a --(Y).sub.b --(Z).sub.c
in which
X represents a monomer type with anionic charge;
Y represents a monomer type with nonionic character;
Z represents a monomer type with cationic charge;
a is the weight % based on the total weight of monomers of X, and is between 95 and 15;
b is the weight % based on the total weight of monomers of Y, and is between 0 and 65;
c is the weight % based on the total weight of monomers of Z, and is between 5 and 60
as rheological modifiers of lamellar phases of detergent or cosmetic (liquid or pasty) compositions are disclosed. Liquid washing detergent and liquid shampoos containing the amphoteric copolymers are also disclosed.
39 Citations
19 Claims
-
1. A method for modifying the rheological properties of a detergent or cosmetic composition containing a lamellar phase, said method comprising adding to said composition an amphoteric copolymer comprising at least a first type of monomeric unit being derived from one or more ethylenically unsaturated monomers having an anionic charge, said second type of monomeric unit being derived from one or more ethylenically unsaturated monomers having a cationic charge, with one at least of said cationic charged monomers having a surface-active structure, and optionally comprising a third type of monomeric unit derived from one or more ethylenically unsaturated nonionic monomers, and
wherein said copolymer has the formula (I): - ##STR10## in which;
R1 is H or COOH,R2 is H or CH3, R3 is a group having at least an acidic function which may be totally or partially neutralized, and a is a number such that the weight percentage of the anionic monomeric unit, based on the total weight of all monomers is, limits included, between 95 and 15; R4 is ##STR11## in which R4 '"'"' is an alkyl or alkoxy radical having 1 to 4 carbon atoms, R4 " is H or alkyl radical having 1 to 4 carbon atoms, R4 '"'"'" is an alkyl radical having 1 to 4 carbon atoms, R5 is H or CH3, and b is a number such that the weight percentage of the nonionic monomeric unit, based on the total weight of all monomers is, limits included, between 0 and 65; A is a monomeric unit derived from a polymerizable unsaturated radical selected from the group consisting of acrylic, methacrylic, maleic, itaconic, crotonic, and vinylphthalic esters, maleic, itaconic, vinylphthalic hemiesters, acrylurethane, methacrylurethane, α
,α
-dimethyl-m-isopropenyl benzylurethane, allylurethane, allylic ethers, substituted or unsubstituted acrylamides, substituted or unsubstituted methacrylamides, and vinyl groups;R6 is H or CH3, n=2 to 30, R7 is an alkyl group having 1 to 4 carbon atoms, Z is N or S, X is a sulfate or halogen counter-ion and when Z is N; R8 is an alkyl chain having 8 to 22 carbon atoms or a linking group to another polymeric chain of formula (I) having the following formula;
##STR12## with n=2 to 30, where A has the same meaning as above and the two bonds from A are connected to two monomer units in another polymer chain of formula (I), andR9 is an alkyl chain having 8 to 22 carbon atoms and when Z is S; R8 does not exist R9 is an alkyl chain having 8 to 22 carbon atoms, and c'"'"' is a number such that the weight percentage, based on the total weight of all monomers, of the cationic charged monomer having a surface-active structure, is, limits included, between 5 and 60 with c'"'"'+c"=c;
c representing the weight percentage of all cationic monomers and varying between 5 and 60, limits included; andB is a cationic monomeric unit, c" is a number such that the weight percentage, based on the total weight of all monomers, of the cationic monomer which does not contain a surface-active structure is, limits included, between 0 and 55. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- ##STR10## in which;
-
16. A liquid detergent composition, comprising at least 0.2 dry wt. %, based on the total weight of the composition, a rheological modifier, which is an amphoteric copolymer comprising at least a first and a second type of monomeric units with said first type of monomeric unit being derived from one or more ethylenically unsaturated monomers having an anionic charge, said second type of monomeric unit being derived from one or more ethylenically unsaturated monomers having a cationic charge, with one at least of said cationic charged monomers having a surface-active structure, and optionally comprising a third type of monomeric unit derived from one or more ethylenically unsaturated nonionic monomers, and wherein said copolymer has the formula (I):
- ##STR13## in which;
R1 is H or COOH,R2 is H or CH3, R3 is a group having at least an acidic function which may be totally or partially neutralized, and a is a number such that the weight percentage of the anionic monomeric unit, based on the total weight of all monomers is, limits included, between 95 and 15; R4 is ##STR14## in which R4 '"'"' is an alkyl or alkoxy radical having 1 to 4 carbon atoms, R4 " is H or alkyl radical having 1 to 4 carbon atom, R4 '"'"'" is an alkyl radical having 1 to 4 carbon atoms, R5 is H or CH3, and b is a number such that the weight percentage of the nonionic monomeric unit, based on the total weight of all monomers is, limits included, between 0 and 65; A is a monomeric unit derived from a polymerizable unsaturated radical selected from the group consisting of acrylic, methacrylic, maleic, itaconic, crotonic, and vinylphthalic esters, maleic, itaconic, vinylphthalic hemiesters, acrylurethane, methacrylurethane, α
, α
-dimethyl-m-isopropenyl benzylurethane, allylurethane, allylic ethers, substituted or unsubstituted acrylamides, substituted or unsubstituted methacrylamides, and vinyl groups;R6 is H or CH3, n=2 to 30, R7 is an alkyl group having 1 to 4 carbon atoms, Z is N or S, X is a sulfate or halogen counter-ion and when Z is N; R8 is an alkyl chain having 8 to 22 carbon atoms or a linking group to another polymeric chain of formula (I) having the following formula;
##STR15## with n=2 to 30, where A has the same meaning as above and the two bonds from A are connected to two monomer units in another polymeric chain of formula (I), andR9 is an alkyl chain having 8 to 22 carbon atoms and when Z is S; R8 does not exist R9 is an alkyl chain having 8 to 22 carbon atoms, and c'"'"' is a number such that the weight percentage, based on the total weight of all monomers, of the cationic charged monomer having a surface-active structure is, limits included, between 5 and 60, with c'"'"'+c"=c;
c representing the weight percentage of all cationic monomers and varying between 5 and 60, limits included; andB is a cationic monomeric unit, c" is a number such that the weight percentage, based on the total weight of all monomers, of the cationic monomer which does not contain a surface-active structure is, limits included, between 0 and 55. - View Dependent Claims (17)
- ##STR13## in which;
-
18. A liquid or pasty cosmetic composition, comprising at least 0.2 dry wt. %, based on the total weight of the composition, a rheological modifier, which is an amphoteric copolymer comprising at least a first and a second type of monomeric units with said first type of monomeric unit being derived from one or more ethylenically unsaturated monomers having an anionic charge, said second type of monomeric unit being derived from one or more ethylenically unsaturated monomers having a cationic charge, with one at least of said cationic charged monomers having a surface-active structure, and optionally comprising a third type of monomeric unit derived from one or more ethylenically unsaturated nonionic monomers, and wherein said copolymer has the formula (I):
- ##STR16## in which;
R1 is H or COOH,R2 is H or CH3, R3 is a group having at least an acidic function which may be totally or partially neutralized, and a is a number such that the weight percentage of the anionic monomeric unit, based on the total weight of all monomers is, limits included, between 95 and 15; R4 is ##STR17## in which R4 '"'"' is an alkyl or alkoxy radical having 1 to 4 carbon atoms, R4 " is H or alkyl radical having 1 to 4 carbon atoms, R4 '"'"'" is an alkyl radical having 1 to 4 carbon atoms, R5 is H or CH3, and b is a number such that the weight percentage of the nonionic monomeric unit, based on the total weight of all monomers is, limits included, between 0 and 65; A is a monomeric unit derived from a polymerizable unsaturated radical selected from the group consisting of acrylic, methacrylic, maleic, itaconic, crotonic, and vinylphthalic esters, maleic, itaconic, vinylphthalic hemiesters, acrylurethane, methacrylurethane, α
, α
-dimethyl-m-isopropenyl benzylurethane, allylurethane, allylic ethers, substituted or unsubstituted acrylamides, substituted or unsubstituted methacrylamides, and vinyl groups;R6 is H or CH3, n=2 to 30, R7 is an alkyl group having 1 to 4 carbon atoms, Z is N or S, X is a sulfate or halogen counter-ion and when Z is N; R8 is an alkyl chain having 8 to 22 carbon atoms or a linking group to another polymeric chain of formula (I) having the following formula;
##STR18## with n=2 to 30, where A has the same meaning as above and the two bonds from A are connected to two monomer units in another polymeric chain of formula (I), andR9 is an alkyl chain having 8 to 22 carbon atoms and when Z is S; R8 does not exist R9 is an alkyl chain having 8 to 22 carbon atoms, and c'"'"' is a number such that the weight percentage, based on the total weight of all monomers, of the cationic charged monomer having a surface-active structure is, limits included, between 5 and 60, with c'"'"'+c"=c;
c representing the weight percentage of all cationic monomers and varying between 5 and 60, limits included; andB is a cationic monomeric unit, c" is a number such that the weight percentage, based on the total weight of all monomers, of the cationic monomer which does not contain a surface-active structure is, limits included, between 0 and 55. - View Dependent Claims (19)
- ##STR16## in which;
Specification