EP0043622A1
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Fabric softening composition
Assignee: Procter and Gamble Ltd
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Filing: 1981-06-29
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Granted: —
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Expires: 2001-06-29
Abstract
Abstract A concentrated fabric softening composition comprising water-insoluble cationic softener and a viscosity control system comprising a first component selected from non-cyclic hydrocarbons, fatty acids and esters thereof and fatty alcohols, and a second component which is a water-soluble cationic polymer having a molecular weight of 2000 to 250,000, selected from polyethylenimine, ethoxylated and propoxylated polyethylenimines and quaternized polyethylenimines. The composition has improved viscosity and stability at both normal and elevated temperatures.
Inventors
- 👤 John Christopher Turner
- 👤 Anthony Dovey
- 👤 Neil Archibald Macgilp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 16:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/001; C11D3/0015; C11D3/16; C11D3/37; C11D3/3703; C11D3/3723; D; D06; D06M; D06M13/00; D06M13/322; D06M13/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A liquid fabric softening composition in the form of a dispersion in aqueous isotropic medium characterized by:- (a) from 8% to 22% of water-insoluble cationic fabric softener, and (b) a viscosity regulator system comprising:- (i) from 0.5% to 6% of a first regulator component selected from C 10 -C 24 non-cyclic hydrocarbons, C 10 -C 24 fatty acids or esters thereof with monohydric alcohols containing from 1 to 4 carbon atoms, and C 10 -C 24 fatty alcohols, and (ii) from 0.05% to 1.0% of a second regulator component which is a water-soluble cationic polymer having an average molecular weight in the range from 2000 to 250,000 selected from polyethylenimine, the reaction product of polyethylenimine with ethylene oxide and/or propylene oxide in a weight ratio of greater than 1:4, and the C 1 -C 20 alkyl or benzyl quaternization products of polyethylenimine or of said reaction product of polyethylenimine with ethylene oxide and/or propylene oxide.
Claim 2
Dependent Claim
155 words
A liquid fabric softening composition in the form of a dispersion in aqueous isotropic medium characterized by:- (a) from 8% to 22% of water-insoluble cationic fabric softener, and (b) a viscosity regulator system comprising:- (i) from 0.5% to 6% of a first regulator component selected from C 10 -C 24 non-cyclic hydrocarbons, C 10 -C 24 fatty acids or esters thereof with monohydric alcohols containing from 1 to 4 carbon atoms, and C 10 -C 24 fatty alcohols, and (ii) from 0.05% to 1.0% of a second regulator component which is a water-soluble cationic polymer having an average molecular weight in the range from 2000 to 250,000 selected from polyethylenimine, the reaction product of polyethylenimine with ethylene oxide and/or propylene oxide in a weight ratio of greater than 1:4, and the C 1 -C 20 alkyl or benzyl quaternization products of polyethylenimine or of said reaction product of polyethylenimine with ethylene oxide and/or propylene oxide.
Claim 3
Dependent Claim
44 words
A composition according to Claim 1 characterized in that the cationic fabric softener is:- (a) a di- C 12 -C 24 alkyl or alkenyl mono- or'polyammonium salt, (b) a di- C 12 -C 24 alkyl or alkenyl imidazolinium salt, or (c) a mixture thereof.
Claim 4
Dependent Claim
56 words
A composition according to Claim 1 or 2 characterized in that the cationic fabric softener is a mixture of di-C l2 -C 24 alkyl or alkenyl imidazolinium salt and di- C 12 -C 24 alkyl or alkenyl mono-ammonium salt in a weight ratio of at least 1:1 and a total level of from 10% to 20%.
Claim 5
Dependent Claim
42 words
A composition according to any of Claims 1 to 3 characterized in that the first viscosity regulator component is selected from C 14 -C 22 linear or branched paraffins, C 10 -C 20 fatty acids and C 12 -C 16 fatty alcohols.
Claim 6
Dependent Claim
63 words
A composition according to any of Claims 1 to 4 characterized in that the second viscosity regulator component has an average molecular weight in the range from 5,000 to 150,000 and is selected from polyethylenimine, the reaction product of polyethylenimine with ethylene oxide at weight ratio of from 1:1 to 4:1 and C 1 -C 20 alkyl or benzyl quaternization products of polyethylenimine.
Claim 7
Dependent Claim
37 words
A composition according to any of Claims 1 to 5 characterized in that the viscosity regulator system comprises from 2% to 5% of said first regulator component and from 0.1% to 0.5% of said second regulator component.
Claim 8
Dependent Claim
46 words
A composition according to any of Claims 1 to 6 characterized in that it additionally contains a water-soluble cationic or nonionic surfactant or mixture thereof, the weight ratio of cationic fabric softener to water-soluble cationic or nonionic surfactant lying in the range from 100:1 to 5:2.
Claim 9
Dependent Claim
57 words
A composition according to Claim 7 characterized in that the water-soluble cationic surfactant is:- (a) a mono- C 8 -C 24 alkyl or alkenyl mono- or polyammonium salt, (b) a mono- C 8 -C 24 alkyl or alkenyl imidazolinium salt, (c) a mono- C 8 -C 24 alkyl or alkenyl pyridinium salt, or (d) a mixture thereof.
Claim 10
Dependent Claim
39 words
A composition according to any preceding Claim characterized in that the-cationic fabric softener has a Krafft point of less than 45°C at a concentration of 8% and displays a lamellar crystalline phase at temperatures immediately above the Krafft point.
Claim 11
Dependent Claim
126 words
A composition according to any of Claims 1 to 9 characterized by:- (a) from 2% to 5% of said first viscosity regulator component selected from C 14 -C 22 linear or branched paraffins, C 10 -C 20 fatty acids and C 12 -C 18 fatty alcohols, and (b) from 0.1% to 0.5% of said second regulator component selected from polyethylenimine having an average molecular weight of from 10,000 to 35,000, the reaction product of polyethylenimine with ethylene oxide at a weight ratio of from about 1:1 to 4:1, said reaction product having an average molecular weight of from 20,000 to 70,000, and C 1 -C 20 alkyl or benzyl quaternization products of polyethylenimine, said quaternization products having an average molecular weight of from 40,000 to 100,000.
References Cited (Backward Citations)
EP0002085A2
Cited
US4179382A
Cited
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