US4404115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic liquid cleaning composition
Assignee: Lever Brothers Co
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Filing: 1982-11-08
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Granted: 1983-09-13
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Expires: 2002-11-08
Abstract
Abstract Aqueous enzymatic liquid cleaning compositions, especially built liquid enzymatic detergent compositions, are disclosed which contain as enzyme stabilizer an alkalimetal pentaborate, optionally with an alkalimetal sulphite and/or a polyol. Preferred alkalimetal pentaborate is sodium pentaborate (Na 2 B 10 O 16 .10H 2 O).
Inventors
- 👤 Ho T. Tai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:23
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663; C11D3/38618
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
Enzymatic liquid cleaning composition comprising: (a) from 0.001 to 10% by weight of an enzyme selected from the group consisting of proteolytic, amylolytic and cellulolytic enzymes and mixtures thereof; (b) from 1 to 15% by weight of an alkalimetal pentaborate; (c) from 0 to 15% by weight of an alkalimetal sulphite; (d) from 0 to 15% by weight of a polyol, containing from 2 to 6 hydroxy groups; and (e) water.
Claim 2
Dependent Claim
71 words
Enzymatic liquid cleaning composition comprising: (a) from 0.001 to 10% by weight of an enzyme selected from the group consisting of proteolytic, amylolytic and cellulolytic enzymes and mixtures thereof; (b) from 1 to 15% by weight of an alkalimetal pentaborate; (c) from 0 to 15% by weight of an alkalimetal sulphite; (d) from 0 to 15% by weight of a polyol, containing from 2 to 6 hydroxy groups; and (e) water.
Claim 3
Dependent Claim
17 words
A composition according to claim 1, comprising from 3 to 10% by weight of said alkalimetal pentaborate.
Claim 4
Dependent Claim
57 words
A composition according to claim 1, which further comprises from 1 to 60% by weight of an active detergent material selected from the group consisting of anionic, nonionic, cationic, zwitterionic, amphoteric detergent materials, alkalimetal of alkanolamine soaps of C 10 -C 24 fatty acids, and mixtures thereof; and from 0 to 60% by weight of a builder.
Claim 5
Dependent Claim
14 words
A composition according to claim 1, having a pH of from 7 to 8.2.
Claim 6
Dependent Claim
88 words
A composition according to claim 3, comprising: (a) from 0.01 to 5% by weight of enzyme; (b) from 1 to 15% by weight of alkalimetal pentaborate; (c) from 0 to 10% by weight of alkalimetal sulphite; (d) from 0 to 10% by weight of polyol; (e) from 2 to 40% by weight of active detergent material; (f) from 5 to 50% by weight of builder, selected from the group of polyphosphate builder salts, nitrilotriacetates, zeolites and mixtures thereof; and (g) from 5 to 70% by weight of water.
Claim 7
Dependent Claim
33 words
A composition according to claim 1, wherein said alkalimetal pentaborate is sodium pentaborate (Na 2 B 10 O 16 .1OH 2 O), said alkalimetal sulphite is sodium sulphite, and said polyol is glycerol.
Claim 8
Dependent Claim
26 words
A composition according to claim 5, wherein the total amount of components (b), (c) and (d) is from 6 to 20% by weight of the composition.
References Cited (Backward Citations)
US4034038A
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US3714050A
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CA947213A
Cited
GB1590445A
Cited
US4243543A
Cited
GB2079305A
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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) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |