EP0080223A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Enzymatic liquid detergent composition
Assignee: Unilever PLC
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Filing: 1982-11-08
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Granted: —
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Expires: 2002-11-08
Abstract
Abstract The invention relates to aqueous enzymatic liquid detergent compositions. The use of a known enzyme-stabilizing system therein, which comprises a mixture of boric acid or an alkalimetalborate with a polyol or a polyfunctional amino compound, together with a certain level of a reducing alkalimetal salt such as sodium sulphite produces a synergistic enzyme-stabilizing effect.
Inventors
- 👤 Jelles Vincent Boskamp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 09:05
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663; C11D3/38618
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
An aqueous, enzymatic liquid detergent composition comprising, in an aqueous medium, a detergent active material, enzymes, and an enzyme-stabilizing system which contains a mixture of (a) from 2 to 15% by weight of the composition of boric acid or an alkalimetal borate and (b) from 2 to 25% by weight of the composition of a polyol or a polyfunctional amino compound, the weight ratio of (b):(a) being at least 1 when a polyol is used and at least 0.5 when a polyfunctional amino compound is used, characterized in that the enzyme-stabilizing system further comprises 5-20% by weight of the composition of a reducing alkalimetal salt, the anion of which is an oxygenated sulphur anion S a O b in which a and b are whole numbers from 1 to 8.
Claim 2
Dependent Claim
130 words
An aqueous, enzymatic liquid detergent composition comprising, in an aqueous medium, a detergent active material, enzymes, and an enzyme-stabilizing system which contains a mixture of (a) from 2 to 15% by weight of the composition of boric acid or an alkalimetal borate and (b) from 2 to 25% by weight of the composition of a polyol or a polyfunctional amino compound, the weight ratio of (b):(a) being at least 1 when a polyol is used and at least 0.5 when a polyfunctional amino compound is used, characterized in that the enzyme-stabilizing system further comprises 5-20% by weight of the composition of a reducing alkalimetal salt, the anion of which is an oxygenated sulphur anion S a O b in which a and b are whole numbers from 1 to 8.
Claim 3
Dependent Claim
21 words
A composition according to claim 1, characterized in that the oxygenated sulphur anion is a sulphite, bisulphite, metabisulphite or thiosulphate anion.
Claim 4
Dependent Claim
18 words
A composition according to claim 1 or 2, characterized in that the reducing alkalimetal salt is sodium sulphite.
References Cited (Backward Citations)
No citation records indexed.
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