Patent US4261868A successfully refreshed from Google Patents.
US4261868A
Expired / Lapsed
US
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Stabilized enzymatic liquid detergent composition containing a polyalkanolamine and a boron compound
Assignee: Lever Brothers Co
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Filing: 1979-08-08
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Granted: 1981-04-14
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Expires: 1999-08-08
Abstract
Abstract The storage stability of aqueous enzymatic liquid detergent compositions is improved by the inclusion therein of a stabilizing system comprising a poly-functional amino compound such as triethanolamine and boric acid or a boron-equivalent thereof.
Inventors
- 👤 Jiri Hora
- 👤 Gerardus A. A. Kivits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:40
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
An aqueous enzymatic liquid detergent composition with improved storage stability, said composition having a pH of 7.5-11.0 and comprising a stabilizing system comprising (a) about 2 to about 25% by weight of the final composition of a polyfunctional amino compound selected from the group consisting of diethanolamine, triethanolamine, di-isopropanolamine, triisopropanolamine and tris(hydroxymethyl) aminomethane; (b) about 0.25 to about 15% calculated on the basis of boric acid by weight of the final composition of a boron compound selected from the group consisting of boric acid, boric oxide, borax, sodium ortho-, meta- and pyroborate.
Claim 2
Dependent Claim
92 words
An aqueous enzymatic liquid detergent composition with improved storage stability, said composition having a pH of 7.5-11.0 and comprising a stabilizing system comprising (a) about 2 to about 25% by weight of the final composition of a polyfunctional amino compound selected from the group consisting of diethanolamine, triethanolamine, di-isopropanolamine, triisopropanolamine and tris(hydroxymethyl) aminomethane; (b) about 0.25 to about 15% calculated on the basis of boric acid by weight of the final composition of a boron compound selected from the group consisting of boric acid, boric oxide, borax, sodium ortho-, meta- and pyroborate.
Claim 3
Dependent Claim
31 words
A composition according to claim 1, comprising about 4 to about 15% by weight of said polyfunctional amino compound and about 0.5 to about 10% by weight of said boron compound.
Claim 4
Dependent Claim
19 words
A composition according to claim 1, further comprising saccharose in an amount of up to about 10% by weight.
Claim 5
Dependent Claim
41 words
A composition according to claim 1, comprising about 0.001 to about 10% by weight of proteases, amylases or cellulases, about 10 to about 60% by weight of an active detergent material and about 5 to about 70% by weight of water.
Claim 6
Dependent Claim
14 words
A composition according to claim 4, having a pH of 8.5 to about 10.5.
References Cited (Backward Citations)
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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) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |