EP0077674A2
Expired / Lapsed
EP
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Viscous compositions containing amidobetaines and salts
Assignee: Unilever PLC
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Filing: 1982-10-18
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Granted: —
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Expires: 2002-10-18
Abstract
Abstract Aqueous compositions containing alkylamido betaines exhibit surprisingly high viscosities in the presence of certain water-soluble inorganic or organic salts, without the need for additional thickening agents. A first group of salts is effective both in the presence and absence of anionic surfactants, while a second group is effective only in the presence of anionic surfactants. The compositions may be used for many household and personal cleaning products, for example. lavatory cieaners, dishwashing compositions and shampoos.
Inventors
- 👤 Fred Kurt Rubin
- 👤 David Van Blarcom
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 16:43
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0026; A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/30; A61K8/33; A61K8/36; A61K8/362; A61K8/365; A61K8/40; A61K8/44; A61Q; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02; C11D1/00; C11D1/88; C11D1/90; A61K2800/00; A61K2800/40; A61K2800/52
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
294 words
An aqueous liquid, paste, or gel composition, characterised in that it comprises: a) 5 to 25% by weight of one or more amido betaines of the general formula I: wherein R is an alkyl or alkenyl chain containing 9 to 17 carbon atoms, x is an integer from 2 to 4, y is O or an integer from 1 to 3, and, z is O or an integer from 1 to 3; b) 2.5 to 40% by weight of one or more water-soluble inorganic and/or organic salts, the inorganic salt being selected from the group consisting of: b)(i) sulphates of metals from groups IA, IIA, IIB and IIIA of the Periodic Table, sulphates of non-metallic ions, and alkali metal carbonates, and/or from the group consisting of: b)(ii) sulphates of metals from group IB of the Periodic Table, alums, alkali metal sesquicarbonates, alkali metal tripolyphosphates and pyrophosphates, potassium chloride, ammonium chloride, and alkali metal silicates; the organic salt being incapable of forming micelles and being selected from the group consisting of: b)(iii) the citrates, tartrates, succinates, and carboxymethyloxysuccinates of metals from Groups IA, IIA, IIB, and IIIA of the Periodic Table and the citrates, tartrates, succinates and carboxymethyloxysuccinates: of ammonium ions; and/or from the group consisting of: b)(iv) the alkali metal salts of acetic acid, and the alkali metal salts of nitrilotriacetic acid; c) optionally, one or more micelle-forming anionic surfactants, and d) water, with the proviso that when no anionic surfactant is present the salt or salts (b) is or are present in a total amount of at least 5% by weight, and is or are selected from groups b(i) and/or b(iii) listed above, the composition having a Brookfield viscosity within the range of from 150 to 1 500 000 cp at ambient temperature.
Claim 2
Dependent Claim
294 words
An aqueous liquid, paste, or gel composition, characterised in that it comprises: a) 5 to 25% by weight of one or more amido betaines of the general formula I: wherein R is an alkyl or alkenyl chain containing 9 to 17 carbon atoms, x is an integer from 2 to 4, y is O or an integer from 1 to 3, and, z is O or an integer from 1 to 3; b) 2.5 to 40% by weight of one or more water-soluble inorganic and/or organic salts, the inorganic salt being selected from the group consisting of: b)(i) sulphates of metals from groups IA, IIA, IIB and IIIA of the Periodic Table, sulphates of non-metallic ions, and alkali metal carbonates, and/or from the group consisting of: b)(ii) sulphates of metals from group IB of the Periodic Table, alums, alkali metal sesquicarbonates, alkali metal tripolyphosphates and pyrophosphates, potassium chloride, ammonium chloride, and alkali metal silicates; the organic salt being incapable of forming micelles and being selected from the group consisting of: b)(iii) the citrates, tartrates, succinates, and carboxymethyloxysuccinates of metals from Groups IA, IIA, IIB, and IIIA of the Periodic Table and the citrates, tartrates, succinates and carboxymethyloxysuccinates: of ammonium ions; and/or from the group consisting of: b)(iv) the alkali metal salts of acetic acid, and the alkali metal salts of nitrilotriacetic acid; c) optionally, one or more micelle-forming anionic surfactants, and d) water, with the proviso that when no anionic surfactant is present the salt or salts (b) is or are present in a total amount of at least 5% by weight, and is or are selected from groups b(i) and/or b(iii) listed above, the composition having a Brookfield viscosity within the range of from 150 to 1 500 000 cp at ambient temperature.
Claim 3
Dependent Claim
57 words
A composition as claimed in claim 1, characterised in that it comprises: a) 5 to 25% by weight of the amidobetaine, b) 5 to 40% by weight of one or more inorganic salts selected from group (b) (i) of claim 1 and/or one or more organic salts selected from group (b)(iii) of claim 1, and c) water.
Claim 4
Dependent Claim
63 words
A composition as claimed in claim 1, characterised in that it comprises: a) 5 to 25% by weight of the amidobetaine, b) 2.5 to 40% by weight of one or more organic salts selected from group (b)(i) of claim 1 and/or one or more inorganic salts selected from group (b)(iii) of claim 1, c) one or more micelle-forming anionic surfactants, and d) water.
Claim 5
Dependent Claim
26 words
A composition as claimed in claim 3, characterised in that the anionic surfactant (c) is present in an amount of from 0.25 to 15% by weight.
Claim 6
Dependent Claim
25 words
A composition as claimed in claim 4, characterised in that the anionic surfactant is present in an amount of from 0.5 to 12.4% by weight.
Claim 7
Dependent Claim
25 words
A composition as claimed in claim 5, characterised in that the anionic surfactant is present in an amount of from 2.5 to 4.0% by weight.
Claim 8
Dependent Claim
65 words
A composition as claimed in claim 1, characterised in that it comprises: a) 5 to 25% by weight of the amidobetaine, b) .2.5 to 40% by weight of one or more inorganic salts selected from the group (b)(ii) of claim 1 and/or one or more organic salts selected from the group (b)(iv) of claim 1, c) one or more micelle-forming anionic surfactants, and d) water.
Claim 9
Dependent Claim
25 words
A composition as claimed in claim 7, characterised in that the anionic surfactant is present in an amount of from 0.25 to 15% by weight.
Claim 10
Dependent Claim
25 words
A composition as claimed in claim 8, characterised in that the anionic surfactant is present in an amount of from 0.5 to 12.4% by weight.
Claim 11
Dependent Claim
25 words
A composition as claimed in claim 8, characterised in that the anionic surfactant is present in an amount of from 0.25 to 4.0% by weight.
Claim 12
Dependent Claim
46 words
A composition as claimed in any one of claims 3 to 10, characterised in that the anionic surfactant is selected from the group consisting of primary and secondary alkyl sulphates, alkyl ether sulphates, linear and branched alkylbenzene sulphonates, secondary alkane sulphonates, alpha-olefin sulphonates and dialkyl sulphosuccinates.
Claim 13
Dependent Claim
37 words
A composition as claimed in any one of claims 1 to 11, characterised in that it is in the form of a viscous liquid having a Brookfield viscosity at ambient temperatures of from 500 to 7500 cps.
Claim 14
Dependent Claim
22 words
A composition as claimed in claim 12, characterised in that the concentration of the salt is from 5 to 19% by weight.
Claim 15
Dependent Claim
22 words
A composition as claimed in claim 13, characterised in that the concentration of the salt is from 10 to 19% by weight.
Claim 16
Dependent Claim
28 words
A composition as claimed in claim 13, characterised in that an anionic surfactant is present and the concentration of the salt is from 5 to 9% by weight.
Claim 17
Dependent Claim
29 words
. A composition as claimed in any one of claims 13 to 15, characterised in that the concentration of the amido betaine is from 5 to 15% by weight.
Claim 18
Dependent Claim
22 words
A composition as claimed in claim_16, characterised in that the concentration of the amido betaine is from 10 to 15% by weight.
Claim 19
Dependent Claim
29 words
A composition as claimed in claim 16, characterised in that an anionic surfactant is present and the concentration of the amido betaine is from 5 to 13% by weight.
Claim 20
Dependent Claim
41 words
A composition as claimed in any one of claims 1 to 11, characterised in that it is in the form of a paste or gel having a Brookfield viscosity at ambient temperatures of from 100 000 to 1 000 000 cps.
Claim 21
Dependent Claim
35 words
A composition as claimed in claim 19, characterised in that it is in the form of a paste or gel having a Brookfield viscosity at ambient temperatures of from 200 000 to 700 000 cps.
Claim 22
Dependent Claim
25 words
A composition as claimed in claim 19 or claim 20, characterised in that the concentration of the salt is from 20 to 35% by weight.
Claim 23
Dependent Claim
28 words
A composition as claimed in any one of claims 19 to 21, characterised in that the concentration of the amido betaine is from 15 to 25% by weight.
Claim 24
Dependent Claim
32 words
A composition as claimed in any preceding claim, characterised in that the amido betaine is represented by the formula: wherein R represents the mixture of alkyl radicals from coconut oil fatty acid.
References Cited (Backward Citations)
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