1. A composition for dyeing keratinous fibers comprising at least one cationic azo dye of formula (I):
W1\u2014N\u2550N\u2014W2\u2014W3\u2003\u2003(I):
wherein:
W1 is chosen from 5-membered cationic aromatic heterocycles of formula (II):
W2 is chosen from divalent carbonaceous aromatic groups and pyridine groups chosen from groups of formulae (III) and (IV):
W3 is chosen from 7-membered or 8-membered heterocycles of formula (V):
wherein:
Z1 is chosen from oxygen and sulfur atoms, and NR12 radicals;
Z2 is chosen from a nitrogen atom and CR11 radicals;
R12 and R13, which may be identical or different, are chosen from C1-C8 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals; and optionally substituted phenyl radicals;
R10 and R11, which may be identical or different, are chosen from hydrogen atoms, optionally substituted phenyl radicals, carboxyl radicals, sulfonylamino radicals, and C1-C4 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals;
R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms; chlorine atoms; bromine atoms; linear and branched C1-C6 hydrocarbonaceous chains, wherein said C1-C6 hydrocarbonaceous chains can each form at least one saturated or unsaturated, 3- to 6-membered carbonaceous ring, wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains is optionally replaced by an entity chosen from an oxygen atom, a nitrogen atom, a sulfur atom, and an SO2 radical and further wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains can be optionally substituted by at least one halogen atom, provided that R6, R7, R8, and R9, which may be identical or different, are not chosen from peroxide bonds, diazo radicals, and nitroso radicals;
n is an integer chosen from 1 and 2;
Z4 is chosen from an oxygen atom, a sulfur atom, NR2 radicals, and CR2R2\u2032 radicals;
R0, R1, R2, R2\u2032, R3, R4 and R5, which may be identical or different, are chosen from hydrogen atoms; alkyl radicals; alkoxy radicals; hydroxyl radicals; amino radicals; acetoxy radicals; NR14R15 groups wherein R14 and R15, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals substituted with at least one radical chosen from halogen atoms, hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, and C1-C2 amino(di)alkyl radicals; sulfonylamino radicals; carboxyl radicals; carboxamido radicals; amido radicals; monoalkylamido radicals; dialkylamido radicals; halogen radicals; and C1-C6 alkyl radicals substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals and C1-C2 (di)alkylamino radicals; and
X is chosen from organic anions and inorganic anions.
2. The composition according to claim 1, wherein said keratinous fibers are human keratinous fibers.
3. The composition according to claim 2, wherein said human keratinous fibers are hair.
4. The composition according to claim 1, wherein R0, R1, R2, R3, R4, and R5, which may be identical or different, are chosen from hydroxyl radicals, acetoxy radicals, amino radicals, methylamino radicals, dimethylamino radicals, 2-hydroxyethylamino radicals, carboxyl radicals, carboxamido radicals, and amido radicals.
5. The composition according to claim 1, wherein R0, R1, Z4, R3, R4, R5, and n, are chosen from the following combinations:
R0
R1
Z4
R3
R4
R5
n
COOH
H
CH2
H
H
H
1 or 2
COOH
OH
CH2
H
H
H
1 or 2
H
H
CH2
H
H
H
1 or 2
CONH2
H
CH2
H
H
H
1 or 2
CONH2
OH
CH2
H
H
H
1 or 2
CONMe2
H
CH2
H
H
H
1 or 2
CONMe2
OH
CH2
H
H
H
1 or 2
CH2OH
H
CH2
H
H
H
1 or 2
CH2OH
OH
CH2
H
H
H
1 or 2
CH2OH
H
CH2
CH2OH
H
H
1
H
OH
CH2
H
H
H
1 or 2
H
OH
CH\u2014OH
H
H
H
1 or 2
H
NH2
CH2
H
H
H
1 or 2
H
NHMe
CH2
H
H
H
1 or 2
H
NMe2
CH2
H
H
H
1 or 2
H
OH
CH\u2014NH2
H
H
H
1 or 2
H
OH
CH\u2014NHMe
H
H
H
1 or 2
H
OH
CH\u2014NH\u2014CH2\u2014CH\u2014
H
H
H
1 or 2
OH
H
H
NH
H
H
H
1 or 2
H
H
NMe
H
H
H
1 or 2
H
H
N\u2014CH2\u2014CH2\u2014OH
H
H
H
1 or
2.
6. The composition according to claim 5, wherein R0, R1, Z4, R3, R4, and R5 are chosen from the following combinations:
R0
R1
Z4
R3
R4
R5
H
H
CH2
H
H
H
COOH
H
CH2
H
H
H
COOH
OH
CH2
H
H
H
CONMe2
H
CH2
H
H
H
CH2OH
H
CH2
H
H
H
CH2OH
OH
CH2
H
H
H
H
OH
CH2
H
H
H
H
NH2
CH2
H
H
H
H
H
NH
H
H
H
H
H
NMe
H
H
H.
7. The composition according to claim 1, wherein R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms, methyl radicals, ethyl radicals, isopropyl radicals, methoxymethyl radicals, hydroxymethyl radicals, 1-carboxymethyl radicals, 1-aminomethyl radicals, 1-aminoethyl radicals, 2-carboxyethyl radicals, 2-hydroxyethyl radicals, 3-hydroxypropyl radicals, 1,2-dihydroxyethyl radicals, 1-hydroxy-2-aminoethyl radicals, 2-hydroxy-1-aminoethyl radicals, methoxy radicals, ethoxy radicals, 3-hydroxyethyloxy radicals and 3-aminoethyloxy radicals.
8. The composition according to claim 7, wherein R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms, methyl radicals, hydroxymethyl radicals, 2-hydroxyethyl radicals 1,2-dihydroxyethyl radicals, methoxy radicals, 2-hydroxyethoxy radicals.
9. The composition according to claim 8, wherein R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms, methyl radicals, and methoxy radicals.
10. The composition according to claim 1, wherein R12 and R13, which may be identical or different, are chosen from C1-C4 alkyl radicals, wherein said C1-C4 alkyl radicals are optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals.
11. The composition according to claim 10, wherein R12 and R13, which may be identical or different, are chosen from methyl radicals, ethyl radicals, 2-hydroxyethyl radicals, 1-carboxymethyl radicals, 2-carboxyethyl radicals, and 2-sulfonylethyl radicals.
12. The composition according to claim 1, wherein R10 and R11, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals, wherein said C1-C4 alkyl radicals are optionally substituted with at least one radical chosen from hydroxyl radicals, amino radicals, C1-C2 (di)alkylamino radicals, and carboxyl radicals.
13. The composition according to claim 12, wherein R10 and R11, which may be identical or different, are chosen from hydrogen atoms, methyl radicals, ethyl radicals, 2-hydroxyethyl radicals, carboxyl radicals, 1-carboxymethyl radicals, 2-carboxyethyl radicals, and 2-sulfonylethyl radicals.
14. The composition according to claim 1, wherein Z1 is chosen from \u2014NR12 radicals, wherein R12 is defined as in claim 1.
15. The composition according to claim 1, wherein Z2 is chosen from CR11 radicals, wherein R11 is defined as in claim 1.
16. The composition according to claim 1, wherein Z4 is chosen from NR2 and CR2R2\u2032 groups.
17. The composition according to claim 1, further comprising at least one oxidation base.
18. The composition according to claim 17, wherein said at least one oxidation base is chosen from para-phenylenediamines, bisphenylalkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and the acid addition salts thereof.
19. The composition according to claim 17, wherein said at least one oxidation base is present in the composition in an amount ranging from about 0.001% to about 10% by weight, relative to the total weight of the composition.
20. The composition according to claim 19, wherein said at least one oxidation base is present in said composition in an amount ranging from about 0.005% to about 6% by weight, relative to the total weight of the composition.
21. The composition according to claim 1, further comprising at least one coupler.
22. The composition according to claim 21, wherein the at least one coupler is chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene couplers, heterocyclic couplers and the acid addition salts thereof.
23. The composition according to claim 1, further comprising at least one oxidizing agent.
24. The composition according to claim 23, wherein said at least one oxidizing agent is hydrogen peroxide.
25. A process for the oxidation dyeing of keratinous fibers, comprising applying to said keratinous fibers at least one dyeing composition comprising at least one cationic azo dye of formula (I):
W1\u2014N\u2550N\u2014W2\u2014W3\u2003\u2003(I)
wherein:
W1 is chosen from 5-membered cationic aromatic heterocycles of formula (II):
W2 is chosen from divalent carbonaceous aromatic groups and pyridine groups chosen from groups of formulae (III) and (IV):
W3 is chosen from 7-membered or 8-membered heterocycles of formula (V):
wherein:
Z1 is chosen from oxygen and sulfur atoms, and NR12 radicals;
Z2 is chosen from a nitrogen atom and CR11 radicals;
R12 and R13, which may be identical or different, are chosen from C1-C8 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals; and optionally substituted phenyl radicals;
R10 and R11, which may be identical or different, are chosen from hydrogen atoms, optionally substituted phenyl radicals, carboxyl radicals, sulfonylamino radicals, and C1-C4 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals;
R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms; chlorine atoms; bromine atoms; linear and branched C1-C6 hydrocarbonaceous chains, wherein each of said C1-C6 hydrocarbonaceous chains can form at least one saturated or unsaturated 3- to 6-membered carbonaceous ring, wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains is optionally replaced by an entity chosen from an oxygen atom, a nitrogen atom, a sulfur atom, and SO2 groups and further wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains can be optionally substituted by at least one halogen atom, provided that R6, R7, R8, and R9, which may be identical or different, are not chosen from peroxide bonds, diazo radicals, and nitroso radicals;
n is an integer chosen from 1 and 2;
Z4 is chosen from an oxygen atom, a sulfur atom, NR2 radicals, and CR2R2\u2032 radicals;
R0, R1, R2, R2\u2032, R3, R4 and R5, which may be identical or different, are chosen from hydrogen atoms; alkyl radicals; alkoxy radicals; hydroxyl radicals; amino radicals; acetoxy radicals; NR14R15 groups wherein R14 and R15, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals substituted with at least one radical chosen from halogen atoms, hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, and C1-C2 amino(di)alkyl radicals; sulfonylamino radicals; carboxyl radicals; carboxamido radicals; amido radicals; monoalkylamido radicals; dialkylamido radicals; halogen radicals; and C1-C6 alkyl radicals substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals and C1-C2 (di)alkylamino radicals; and
X is chosen from organic anions and inorganic anions.
26. The process according to claim 25, wherein said keratinous fibers are human keratinous fibers.
27. The process according to claim 26, wherein said human keratinous fibers are hair.
28. The process according to claim 25, wherein the at least one dyeing composition comprises at least one oxidizing agent.
29. The process according to claim 28, wherein the at least one oxidizing agent is mixed with the at least one dyeing composition at the time of use.
30. The process according to claim 28, wherein said at least one oxidizing agent is applied to the keratinous fibers in the form of an oxidizing composition simultaneously with or sequentially to the application of said at least one dyeing composition.
31. A process for the oxidation dyeing of keratinous fibers comprising applying to said keratinous fibers, in the presence of at least one oxidizing agent, at least one dyeing composition comprising at least one oxidation base and optionally at least one coupler,and further comprising at least one cationic azo dye of formula (I):
W1-N\u2550N-W2-W3\u2003\u2003(I)
wherein:
W1is chosen from 5-membered cationic aromatic heterocycles of formula (II):
W2 is chosen from divalent carbonaceous aromatic groups and pyridine groups chosen from groups of formulae (III) and (IV):
W3 is chosen from 7-membered or 8-membered heterocycles of formula (V):
wherein:
Z1 is chosen from oxygen and sulfur atoms, and NR12 radicals;
Z2 is chosen from a nitrogen atom and CR11 radicals;
R12 and R13, which may be identical or different, are chosen from C1-C8 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals; and optionally substituted phenyl radicals;
R10 and R11, which may be identical or different, are chosen from hydrogen atoms, optionally substituted phenyl radicals, carboxyl radicals, sulfonylamino radicals, and C1-C4 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals;
R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms; chlorine atoms; bromine atoms; linear and branched C1-C6 hydrocarbonaceous chains, wherein each of said C1-C6 hydrocarbonaceous chains can form at least one saturated or unsaturated, 3- to 6-membered carbonaceous ring, wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains is optionally replaced by an entity chosen from an oxygen atom, a nitrogen atom, a sulfur atom, and an SO2 radical, and further wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains can be optionally substituted by at least one halogen atom, provided that R6, R7, R8, and R9, which may be identical or different, are not chosen from peroxide bonds, diazo radicals, and nitroso radicals;
n is an integer chosen from 1 and 2;
Z4 is chosen from an oxygen atom, a sulfur atom, NR2 radicals, and CR2R2\u2032 radicals;
R0, R1, R2, R2\u2032, R3, R4 and R5, which may be identical or different, are chosen from hydrogen atoms; alkyl radicals; alkoxy radicals; hydroxyl radicals; amino radicals; acetoxy radicals; NR14R15 groups wherein R14 and R15, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals substituted with at least one radical chosen from halogen atoms, hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, and C1-C2 amino(di)alkyl radicals; sulfonylamino radicals; carboxyl radicals; carboxamido radicals; amido radicals; monoalkylamido radicals; dialkylamido radicals; halogen radicals; and C1-C6 alkyl radicals substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals and C1-C2 (di)alkylamino radicals; and
X is chosen from organic anions and inorganic anions.
32. The process according to claim 31, wherein said keratinous fibers are human keratinous fibers.
33. The process according to claim 32, wherein said human keratinous fibers are hair.
34. The process according to claim 31 wherein, at the time of use, said at least one oxidizing agent is mixed with said at least one dyeing composition.
35. The process according to claim 31, wherein said at least one oxidizing agent is applied to said keratinous fibers in the form of an oxidizing composition simultaneously with or sequentially to the application of said at least one dyeing composition.
36. A multi-compartment dyeing device comprising at least one compartment comprising at least one dyeing composition for keratinous fibers and at least one compartment comprising at least one oxidizing composition,
wherein said dyeing composition comprises at least one cationic azo dye of formula (I):
W1\u2014N\u2550N\u2014W2\u2014W3\u2003\u2003(I);
wherein:
W1 is chosen from 5-membered cationic aromatic heterocycles of formula (II):
W2 is chosen from divalent carbonaceous aromatic groups and pyridine groups chosen from groups of formulae (III) and (IV):
W3 is chosen from 7-membered or 8-membered heterocycles of formula (V):
wherein:
Z1 is chosen from oxygen and sulfur atoms, and NR12 radicals;
Z2 is chosen from a nitrogen atom and CR11 radicals;
R12 and R13, which may be identical or different, are chosen from C1-C8 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals; and optionally substituted phenyl radicals;
R10 and R11, which may be identical or different, are chosen from hydrogen atoms, optionally substituted phenyl radicals, carboxyl radicals, sulfonylamino radicals, and C1-C4 alkyl radicals that are optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals;
R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms; chlorine atoms; bromine atoms; linear and branched C1-C6 hydrocarbonaceous chains, wherein each of said C1-C6 hydrocarbonaceous chains can form at least one saturated or unsaturated, 3- to 6-membered carbonaceous ring, wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains is optionally replaced by an entity chosen from an oxygen atom, a nitrogen atom, a sulfur atom, and an SO2 radical and further wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains can be optionally substituted by at least one halogen atom, provided that R6, R7, R8, and R9, which may be identical or different, are not chosen from peroxide bonds, diazo radicals, and nitroso radicals;
n is an integer chosen from 1 and 2;
Z4 is chosen from an oxygen atom, a sulfur atom, NR2 radicals, and CR2R2\u2032 radicals;
R0, R1, R2, R2\u2032, R3, R4 and R5, which may be identical or different, are chosen from hydrogen atoms; alkyl radicals; alkoxy radicals; hydroxyl radicals; amino radicals; acetoxy radicals; NR14R15 groups wherein R14 and R15, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals substituted with at least one radical chosen from halogen atoms, hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, and C1-C2 amino(di)alkyl radicals; sulfonylamino radicals; carboxyl radicals; carboxamido radicals; amido radicals; monoalkylamido radicals; dialkylamido radicals; halogen radicals; and C1-C6 alkyl radicals substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals and C1-C2 (di)alkylamino radicals; and
X is chosen from organic anions and inorganic anions.
37. A cationic azo compound chosen from compounds of formula (I):
W1\u2014N\u2550N\u2014W2\u2014W3\u2003\u2003(I)
wherein:
W1 is chosen from 5-membered cationic aromatic heterocycles of formula (II):
W2 is chosen from divalent carbonaceous aromatic groups and pyridine groups chosen from groups of formulae (III) and (IV):
W3 is chosen from 7-membered or 8-membered heterocycles of formula (V):
wherein:
Z1 is chosen from oxygen and sulfur atoms, and NR12 radicals;
Z2 is chosen from a nitrogen atom and CR11 radicals;
R12 and R13, which may be identical or different, are chosen from C1-C8 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals; and optionally substituted phenyl radicals;
R10 and R11, which may be identical or different, are chosen from hydrogen atoms, optionally substituted phenyl radicals, carboxyl radicals, sulfonylamino radicals, and C1-C4 alkyl radicals optionally substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals, C1-C2 (di)alkylamino radicals, carboxyl radicals, and sulfonic radicals;
R6, R7, R8 and R9, which may be identical or different, are chosen from hydrogen atoms; chlorine atoms; bromine atoms; linear and branched C1-C6 hydrocarbonaceous chains, wherein each of said C1-C6 hydrocarbonaceous chains can form at least one saturated or unsaturated, 3- to 6-membered carbonaceous ring, wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains is optionally replaced by an entity chosen from an oxygen atom, a nitrogen atom, a sulfur atom, and an SO2 radical and further wherein at least one carbon atom of each of said C1-C6 hydrocarbonaceous chains can be optionally substituted by at least one halogen atom, provided that R6, R7, R8, and R9, which may be identical or different, are not chosen from peroxide bonds, diazo radicals, and nitroso radicals;
n is an integer chosen from 1 and 2;
Z4 is chosen from an oxygen atom, a sulfur atom, NR2 radicals, and CR2R2\u2032 radicals;
R0, R1, R2, R2\u2032, R3, R4 and R5, which may be identical or different, are chosen from hydrogen atoms; alkyl radicals; alkoxy radicals; hydroxyl radicals; amino radicals; acetoxy radicals; NR4R15 groups wherein R14 and R15, which may be identical or different, are chosen from hydrogen atoms and C1-C4 alkyl radicals substituted with at least one radical chosen from halogen atoms, hydroxyl radicals, C1-C2 alkoxy radicals, amino radicals, and C1-C2 amino(di)alkyl radicals; sulfonylamino radicals; carboxyl radicals; carboxamido radicals; amido radicals; monoalkylamido radicals; dialkylamido radicals; halogen radicals; and C1-C6 alkyl radicals substituted with at least one radical chosen from hydroxyl radicals, C1-C2 alkoxy radicals, C2-C4 (poly)hydroxyalkoxy radicals, amino radicals and C1-C2 (di)alkylamino radicals; and
X is chosen from organic anions and inorganic anions.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A mixer comprising a mixer element and a housing having a mixing chamber that includes inlet openings and contains the mixer element, wherein said mixer element cooperates with the housing to provide a paste-tight closure of the inlet openings when in a first position, and to open the inlet openings when in a second position.
2. The mixer of claim 1, wherein said mixer element comprises closure elements that extend radially from a body portion.
3. The mixer of claim 2, wherein the closure elements are larger in cross-section than said inlet openings.
4. The mixer of claim 2, wherein the closure elements are provided in the form of mixing paddles.
5. The mixer of claim 4, wherein the paddles comprise a circular disc-shaped portion for closing the inlet openings and a paddle-shaped portion connecting the disc-shaped portion with the body portion.
6. The mixer of claim 2, further comprising mixing vanes or mixing blades provided at said body portion.
7. The mixer of claim 2, wherein the body portion is rotatable about its longitudinal axis and comprises a hexagonal opening at its rear end connectable to the drive shaft of a dispensing apparatus.
8. The mixer of claim 2, further comprising a locking element for blocking undesired movement of said mixer element.
9. The mixer of claim 8, wherein the locking element is located at the rear end of said body portion.
10. The mixer of claim 8, wherein the locking element has a predetermined breaking point.
11. The mixer of claim 1, wherein:
the housing, has a longitudinal axis, a rear end provided with separate inlet openings for each of said components, and a front end provided with a discharge opening;
the mixing chamber is formed in said housing and has an entry side facing said rear end of said housing; and
the mixer element is supported in said housing for rotation about said longitudinal axis.
12. The mixer of claim 11, wherein the rear end of the housing is formed by a terminating plate, comprising separate inlet pipes adapted for connection with a dispensing cartridge containing said components.
13. The mixer of claim 12, wherein the terminating plate comprises at its side facing the mixing chamber said inlet openings.
14. The mixer of claim 12, said terminating plate further comprising an engagement clement corresponding to a locking element provided at said mixer element for blocking undesired movement of the mixer element.
15. The mixer of claim 11, wherein said openings are different in size.