Structured surfactant compositions
An aqueous structured surfactant composition, contains water, one or more anionic surfactants, and one or more amine oxides, and exhibits shear-thinning viscosity, is capable of suspending water insoluble or partially water soluble components, and uses a low relative amount of structuring agent and/or surfactant.
1 . An aqueous structured surfactant composition, comprising water, one or more anionic surfactants, and one or more amine oxides, said composition exhibiting shear-thinning viscosity and is capable of suspending water insoluble or partially water soluble components.
2 . The composition of claim 1 , wherein the composition comprises, based on 100 parts by weight of the composition, from about 3 to about 40 parts by weight of the one or more anionic surfactants.
3 . The composition of claim 2 , wherein the composition comprises from about 1 to about 70 parts by weight amine oxide per 100 parts by weight anionic surfactant
4 . The composition of claim 1 , wherein the composition comprises, based on 100 pbw of the composition, from greater than 0 to about 20 parts by weight of the one or more amine oxides.
5 . The composition of claim 1 , wherein the one or more anionic surfactants comprise one or more compounds selected from linear alkylbenzene sulfonates, alpha olefin sulfonates, paraffin sulfonates, alkyl ester sulfonates, alkyl sulfates, alkyl alkoxy sulfates, alkyl sulfonates, alkyl alkoxy carboxylates, alkyl alkoxylated sulfates, monoalkyl phosphates, dialkyl phosphates, sarcosinates, sulfosuccinates, isethionates, and taurates, and mixtures thereof.
6 . The composition of claim 1 , wherein the one or more amine oxides comprise one or more compounds according to formula (III):
wherein R 5 , R 6 , and R 7 are each independently alkyl, hydroxyalkyl, alkoxyl, alkenyl, R 8 —R 9 —, R 10 —C(O)—NH—R 11 —, a phosphate moiety, a phosphonate moiety, or any two of R 5 , R 6 , and R 7 are fused to form a 5- to 8-membered saturated or unsaturated heterocyclic ring that includes the nitrogen atom of the amine oxide and, optionally, further includes a second nitrogen atom or an oxygen atom as a ring member and which may be further substituted with alkyl or amino on one or more of the ring atoms,
R 8 and R 10 are each independently H, alkyl, or alkenyl,
R 9 is alkyleneoxy, and
R 11 is alkylene or alkyleneoxy.
7 . The composition of claim 6 wherein R 5 , R 6 , and R 7 are each independently (C 1 -C 50 )alkyl, (C 1 -C 50 )hydroxyalkyl, (C 1 -C 50 )alkoxyl, (C 2 -C 50 )alkenyl, R 8 —R 9 —, R 10 —C(O)—NH—R 11 —, a phosphate moiety, a phosphonate moiety, or any two of R 5 , R 6 , and R 7 are fused to form a 5- or 6-membered saturated or unsaturated heterocyclic ring that includes the nitrogen atom of the amine oxide and, optionally, further includes a second nitrogen atom or an oxygen atom as a ring member and which may be further substituted with (C 1 -C 50 )alkyl or amino on one or more of the ring atoms,
R 8 and R 10 are each independently H, (C 1 -C 50 )alkyl, or (C 2 -C 50 )alkenyl,
R 9 is (C 1 -C 50 )alkyleneoxy, and
R 11 is (C 1 -C 50 )alkylene or (C 2 -C 50 )alkyleneoxy.
8 . The composition of claim 6 , wherein at least one of R 5 , R 6 , and R 7 is (C 1 -C 50 )alkyl, (C 1 -C 50 )hydroxyalkyl, (C 1 -C 50 )alkoxyl, or (C 2 -C 50 )alkenyl.
9 . The composition of claim 6 , wherein at least one of R 5 , R 6 , and R 7 is derived from almond oil, babassu oil, hydrogenated palm kernel oil, hydrogenated tallow, milk, mink oil, olive oil, palm oil, sesame oil, soy, tallow, or wheat germ oil.
10 . The composition of claim 6 , wherein one of R 5 , R 6 , and R 7 is (C 8 -C 50 )alkyl or (C 8 -C 50 )alkenyl and the other two of R 5 , R 6 , and R 7 are each independently (C 1 -C 7 )alkyl, (C 1 -C 7 )hydroxyalkyl, (C 1 -C 7 )alkoxyl.
11 . The composition of claim 6 , wherein at least one of R 5 , R 6 , and R 7 is R 10 —C(O)—NH—R 11 —, wherein R 10 is (C 1 -C 50 )alkyl or (C 2 -C 50 )alkenyl, and R 11 is (C 1 -C 20 )alkylene, typically methylene or (C 2 -C 20 )polymethylene.
12 . The composition of claim 6 , wherein at least one of R 5 , R 6 , and R 7 is a radical R 10 —C(O)—NH—R 11 —, wherein R 10 is (C 1 -C 50 )alkyl or (C 2 -C 50 )alkenyl and the R 10 —C(O)— portion of the radical is derived from almond oil, babassu oil, hydrogenated palm kernel oil, hydrogenated tallow, milk, mink oil, olive oil, palm oil, sesame oil, soy, tallow, or wheat germ oil, and R 11 is (C 1 -C 20 )alkylene, typically methylene or (C 2 -C 20 )polymethylene.
13 . The composition of claim 6 , wherein at least one of R 5 , R 6 , and R 7 is a phosphate moiety or a phosphonate moiety.
14 . The composition of claim 6 , wherein two of R 5 , R 6 , and R 7 are fused to form a 5- or 6-membered saturated or unsaturated heterocyclic ring which includes the nitrogen atom of the amine oxide and a second nitrogen atom as ring members and wherein the ring is substituted with amino on one or more of the ring atoms.
15 . The composition of claim 6 , wherein two of R 5 , R 6 , and R 7 are fused to form a 5- or 6-membered saturated or unsaturated heterocyclic ring which includes the nitrogen atom of the amine oxide and an oxygen atom as ring members and wherein the ring is substituted with alkyl on one or more of the ring carbons.
16 . The composition of claim 1 , wherein the composition comprises from about 5 to about 40 pbw of an anionic surfactant selected from linear sulfate anionic surfactants, and from greater than zero to about 20 pbw, amine oxide.
17 . The composition of claim 16 , wherein the linear sulfate anionic surfactants is selected from, linear alkyl sulfates, such as sodium lauryl sulfate, ammonium lauryl sulfate, sodium coco sulfate sodium myristyl sulfate, and linear alkyl alkoxy sulfates, such as sodium laureth sulfate ammonium laureth sulfate, sodium coco ether sulfate.
18 . A surfactant blend, comprising, based on 100 parts by weight of the blend, from about 10 parts by weight to about 75 parts by weight of one or more anionic surfactants, and from greater than 1 part by weight to about 30 parts by weight of one or more amine oxides.
19 . A method for making an aqueous structured surfactant composition, comprising mixing water, one or more anionic surfactants, and one or more amine oxides, wherein the composition exhibits shear-thinning viscosity and is capable of suspending water insoluble or partially water soluble components.
20 . A multi-phase composition comprising:
a first phase that comprises water, one or more anionic surfactants, and one or more amine oxide, exhibits shear-thinning viscosity, and is capable of suspending water insoluble or partially water soluble components, and
one or more additional phases that are at least substantially distinct from such first phase.
21 . A personal care composition, comprising water, one or more anionic surfactants and one or more amine oxide, said composition exhibiting shear-thinning viscosity and is capable of suspending water insoluble or partially water soluble components.
22 . The composition of claim 21 , wherein the composition is selected from shampoos, body washes, hand soaps, lotions, creams, conditioners, shaving products, facial washes, personal wipes, and skin treatments.
23 . The composition of claim 21 , wherein the composition further comprises one or more benefit agents.
24 . The composition of claim 21 , wherein the composition further comprises, based on 100 parts by weight of such composition, from about 0.1 to about 50 parts by weight of one or more benefit agents
25 . The composition of claim 21 , wherein the benefit agent comprises one or more compounds selected from emollients, moisturizers, conditioners, skin conditioners, hair conditioners, vitamins, pro-vitamins, antioxidants, free-radical scavengers, abrasives, dyes, hair coloring agents, bleaching agents, UV absorbers, anti-UV agents, antibacterial agents, antifungal agents, melanin regulators, tanning accelerators, depigmenting agents, skin lightening agents, skin-coloring agents, liporegulators, weight-reduction agents, anti-acne agents, antiseborrhoeic agents, anti-ageing agents, anti-wrinkle agents, keratolytic agents, anti-inflammatory agents, anti-acne agents, antibiotics, anti-inflammatory agents, botanical extracts, imidazoles, refreshing agents, cicatrizing agents, vascular-protection agents, agents for the reduction of dandruff, seborrheic dermatitis, or psoriasis, shale oil and derivatives thereof, anti-psoriasis agents, corticosteroids depilating agents, agents for combating hair loss, reducing agents for permanent-waving, reflectants, essential oils and fragrances.