US5160641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition with fabric softening properties
Assignee: Lever Brothers Co
•
Filing: 1991-01-02
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Granted: 1992-11-03
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Expires: 2011-01-02
Abstract
Abstract A fabric treatment composition contains at least a detergent active material, a fabric softening agent and 0.5 to 3% nonionic substituted cellulose ether derivative which has an HLB of 3.1 to 4.3 and a gel point of less than 58° C., which improve softening performances on cotton while controlling deposition on synthetic fabrics. Ethyl, hydroxyethyl or methyl hydroxyethyl cellulose ethers are preferred. The detergent active material is anionic or a mixture thereof with other detergent active materials and may be present at 2 to 50% of the composition. The softening agent may be soap, a cationic material, a fatty amine and/or a clay with a soap/cationic mixture being preferred, and may be present at 0.5 to 50% of the composition.
Inventors
- 👤 Francis G. Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:53
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/001; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
A fabric treatment composition comprising (i) from 5% to 40% by weight of a detergent active material selected from non-soap anionic detergent active materials and mixtures thereof with other non-soap detergent active materials; (ii) from 2% to 50% by weight of an organic fabric softening agent selected from soaps, fatty amines, fabric softening clays and their derivatives and mixtures thereof; and (iii) from 0.5 to 3% by weight of a nonionic substituted cellulose ether derivative having an hydrophilic-lipophilic balance of between 3.3 and 3.8, a degree of substitution of 1.9 to 2.9 and a gel point of between 33° C. and 56° C., the cellulose ether derivative being selected from the group consisting of ethyl hydroxyethyl cellulose ethers and methyl hydroxyethyl cellulose ethers.
Claim 2
Dependent Claim
123 words
A fabric treatment composition comprising (i) from 5% to 40% by weight of a detergent active material selected from non-soap anionic detergent active materials and mixtures thereof with other non-soap detergent active materials; (ii) from 2% to 50% by weight of an organic fabric softening agent selected from soaps, fatty amines, fabric softening clays and their derivatives and mixtures thereof; and (iii) from 0.5 to 3% by weight of a nonionic substituted cellulose ether derivative having an hydrophilic-lipophilic balance of between 3.3 and 3.8, a degree of substitution of 1.9 to 2.9 and a gel point of between 33° C. and 56° C., the cellulose ether derivative being selected from the group consisting of ethyl hydroxyethyl cellulose ethers and methyl hydroxyethyl cellulose ethers.
Claim 3
Dependent Claim
24 words
A fabric treatment composition according to claim 1 in which the fabric softening agent is selected from mixtures of soap with a fatty amine.
Claim 4
Dependent Claim
146 words
A fabric treatment composition according to claim 1, in which the fabric softening agent is selected from water-insoluble tertiary amines having the general formula ##STR7## wherein R 1 is a C 10 -C 26 alkyl or alkenyl group, R 2 is selected from the same as R 1 and a C 1 -C 7 alkyl group when R 1 is a C 20 -C 26 alkyl or alkenyl group and R 3 has the formula --CH 2 --Y, wherein Y is selected from H; C 1 -C 6 alkyl ##STR8## --CH 2 OH; --CH═CH 2 ; --CH 2 CH 2 OH; ##STR9## wherein R 4 is a C 1 -C 4 alkyl group; ##STR10## wherein each R 5 is independently selected from H and C 1 -C 20 ; and ##STR11## wherein each R 6 is independently selected from H and C 1 -C 20 alkyl.
Claim 5
Dependent Claim
45 words
A fabric treatment composition according to claim 1, in which the fabric softening agent is a soap selected from salts of fatty acids with alkali metals, alkaline earth metals and organic nitrogen containing materials, wherein the fatty acid contains from 8 to 24 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-03 | 1996-05-04 | 1996-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-03 | 2000-05-04 | 2000-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-03 | 2004-05-04 | 2004-11-03 | $7700.00 | Window Closed / Lapsed |