EP0239910A2
Expired / Lapsed
EP
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Biodegradable fabric softeners
Assignee: Procter and Gamble European Technical Center
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Filing: 1987-03-24
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Granted: —
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Expires: 2007-03-24
Abstract
Abstract Fabric softening compositions which are rapidly biodegradable and particularly shelf stable are disclosed. These compositions contain a specific quaternary ammonium, and are formulated in a narrowly defined pH range.
Inventors
- 👤 Theodericus Johannes Straathof
- 👤 Axel König
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
D; D06; D06M; D06M16/00; C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/0005; C11D3/001; C11D3/0015; C11D3/16; C11D3/37; C11D3/3703; C11D3/373
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
144 words
An aqueous fabric softening composition with excellent hydrolytic stability on storage, containing a rapidly biodegradable quaternary ammonium softening agent of the formula: Q is R 1 is (CN 2 ) n -Q-T 2 or T 3 ; R 2 is ( C H 2 ) n -Q-T 4 or T 5 or R 3 ; R 3 is C 1 -C 4 alkyl ; T 1 , T 2 , T 3 , T 4 , T 5 are (the same or different) C12-C22 alkyl or alkenyl ; n is an integer from 1 to 4; and X ⊖ is a softener-compatible anion, and, if desired, conventional matrix components and additiues, characterized in that the composition has a pH, at 20°C, of from 2.5 to 4.2 upon dilution, in de-ionized water, to a concentration of 0.5% to 1% of said rapidly biodegradable quaternary ammonium.
Claim 2
Dependent Claim
144 words
An aqueous fabric softening composition with excellent hydrolytic stability on storage, containing a rapidly biodegradable quaternary ammonium softening agent of the formula: Q is R 1 is (CN 2 ) n -Q-T 2 or T 3 ; R 2 is ( C H 2 ) n -Q-T 4 or T 5 or R 3 ; R 3 is C 1 -C 4 alkyl ; T 1 , T 2 , T 3 , T 4 , T 5 are (the same or different) C12-C22 alkyl or alkenyl ; n is an integer from 1 to 4; and X ⊖ is a softener-compatible anion, and, if desired, conventional matrix components and additiues, characterized in that the composition has a pH, at 20°C, of from 2.5 to 4.2 upon dilution, in de-ionized water, to a concentration of 0.5% to 1% of said rapidly biodegradable quaternary ammonium.
Claim 3
Dependent Claim
15 words
A composition in accordance with Claim 1 wherein said pH is from 3.4 to 4.2.
Claim 4
Dependent Claim
22 words
A composition in accordance with Claims 1 and 2 wherein the rapidly biodegradable quaternary ammonium softening agent is N,N-di(2-tallowoyl-oxy-ethyl) N,N-dimethyl ammonium chloride.
Claim 5
Dependent Claim
17 words
An aqueous fabric softening composition comprising from 2% to 25% of the rapidly biodegradable quaternary ammonium compound.
Claim 6
Dependent Claim
17 words
An aqueous fabric softening composition comprising from 2% to 25% of the rapidly biodegradable quaternary ammonium compound.
Claim 7
Dependent Claim
40 words
A composition according to Claim 1 or 2, further comprising from 2% to 25% of a conventional softening active compound selected from the group of quaternary ammonium salts having at least one acyclic aliphatic C 15 -C 22 hydrocarbon group.
Claim 8
Dependent Claim
67 words
A composition according to any one of the preceding claims which further comprises from 1% to 40% of a di-(higher alkyl) cyclic amine of formula: wherein n is 2 or 3, preferably 2; R 1 and R 2 are, independently, a C 8 -C 30 alkyl or alkenyl, preferably C 11 -C 22 alkyl, more preferably C 15 -C 18 alkyl, or mixtures of such alkyl radicals.
Claim 9
Dependent Claim
71 words
A composition according to any one of the preceding claims which further comprises from 0.1% to 10% of a predominantly linear di(C 1 -C 5 ) alkyl or C 1 -C 5 alkylaryl siloxane in which the alkyl groups may be partially or wholly fluorinated and which may be substituted with cationic nitrogen groups, the siloxane having a viscosity at 25°C of at least 100 centistokes and up to 100,000 centistokes.
Claim 10
Dependent Claim
13 words
A composition according to claim 7 wherein the siloxane is a polydimethyl siloxane.
Claim 11
Dependent Claim
22 words
A composition according to any one of the preceding claims which further comprises from 0.1% to 10% of a soil release agent.
Claim 12
Dependent Claim
61 words
A composition according to claim 9 wherein the soil release polymer is of the formula: wherein R is 1, 4 -phenylene; R 2 is 1,2-propylene; X is hydrogen; n is an integer of 6 to 120; u is generally an integer of 5, or less, with at least 20% to 40% of the material having u ranging from 3 to 5.
References Cited (Backward Citations)
No citation records indexed.
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