US4627925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous concentrated fabric softening composition
Assignee: Lever Brothers Co
•
Filing: 1985-04-04
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Granted: 1986-12-09
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Expires: 2005-04-04
Abstract
Abstract An aqueous concentrated fabric softening composition comprises an aqueous base, more than 10% of a water-soluble cationic softener and at least 3% of an alkoxylated amine having less than 7 alkylene oxide groups per molecule such as ethoxylated tallow amine. The total level of cationic and nonionic components is preferably less than 25%. The alkoxylated amine improves processing by lowering the initial viscosity of the product.
Inventors
- 👤 Robert M. Butterworth
- 👤 John R. Martin
- 👤 Edwin Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:01
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/645; C11D3/00; C11D3/0005; C11D3/001; C11D3/0015; C11D1/42; C11D1/44; C11D1/62
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
69 words
An aqueous concentrated fabric softening composition comprising: (i) an aqueous base; (ii) more than 10% by weight of a water-insoluble cationic fabric softener; and (iii) about 3.5% by weight of a nonionic material which is a fatty coco amine ethoxylated with an average of approximately 5 ethylene oxide groups per molecule, the total level of the cationic softener and the nonionic material being not more than 36% by weight.
Claim 2
Dependent Claim
69 words
An aqueous concentrated fabric softening composition comprising: (i) an aqueous base; (ii) more than 10% by weight of a water-insoluble cationic fabric softener; and (iii) about 3.5% by weight of a nonionic material which is a fatty coco amine ethoxylated with an average of approximately 5 ethylene oxide groups per molecule, the total level of the cationic softener and the nonionic material being not more than 36% by weight.
Claim 3
Dependent Claim
23 words
An aqueous concentrated fabric softening composition according to claim 1, comprising from 10.5% to 21% by weight of said water-insoluble cationic fabric softener.
Claim 4
Dependent Claim
28 words
An aqueous concentrated fabric softening composition according to claim 1, wherein the weight ratio of said water-insoluble cationic fabric softener and said nonionic material is at least 1:1.
Claim 5
Dependent Claim
26 words
An aqueous concentrated fabric softening composition according to claim 1, further comprising an electrolyte selected from ionic salts of lithium, magnesium, calcium, aluminium and mixtures thereof.
Claim 6
Dependent Claim
36 words
A process for preparing an aqueous concentrated fabric softening composition according to claim 1, wherein a molten mixture of the cationic softener and the nonionic material is added to water with stirring to form a dispersion.
Claim 7
Dependent Claim
40 words
A process for preparing an aqueous concentrated fabric softening composition according to claim 1, wherein the molten nonionic material is added to water containing a strong acid and thereafter molten cationic softener is added with stirring to form a dispersion.
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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) | 1989-12-08 | 1990-06-09 | 1990-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-08 | 1994-06-09 | 1994-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-08 | 1998-06-09 | 1998-12-09 | $7700.00 | Window Closed / Lapsed |