US4243546A
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US
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Stable aqueous compositions containing enzymes
Assignee: Colgate Palmolive Co
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Filing: 1979-03-23
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Granted: 1981-01-06
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Expires: 1999-03-23
Abstract
Abstract An aqueous detergent composition containing an enzyme which is stabilized with an alkanolamine and an organic or an inorganic acid.
Inventors
- 👤 Elias H. Shaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:28
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
124 words
A stabilizing aqueous enzyme composition consisting essentially of: (1) from about 1% to about 90% by weight of water; (2) from about 0.01% to about 6% by weight of an acid selected from the group consisting of saturated or unsaturated organic monoacids and diacids having from 1 to 18 carbon atoms; (3) from 0.1% to about 25% by weight of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine and triethanolamine; (4) from about 0.006% to about 5.0% by weight of an enzyme selected from the group consisting of proteases and alpha amylases; and (5) from about 1% to about 55% by weight of a surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, and mixtures of nonionic and anionic surfactants.
Claim 2
Dependent Claim
124 words
A stabilizing aqueous enzyme composition consisting essentially of: (1) from about 1% to about 90% by weight of water; (2) from about 0.01% to about 6% by weight of an acid selected from the group consisting of saturated or unsaturated organic monoacids and diacids having from 1 to 18 carbon atoms; (3) from 0.1% to about 25% by weight of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine and triethanolamine; (4) from about 0.006% to about 5.0% by weight of an enzyme selected from the group consisting of proteases and alpha amylases; and (5) from about 1% to about 55% by weight of a surfactant selected from the group consisting of nonionic surfactants, anionic surfactants, and mixtures of nonionic and anionic surfactants.
Claim 3
Dependent Claim
104 words
A stabilizing aqueous enzyme composition consisting of: (1) from about 1% to about 90% by weight of water; (2) from about 0.01% to about 6% by weight of acetic acid; (3) from about 0.1% to about 25% by weight of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; (4) from about 0.006% to about 5.0% by weight of an enzyme selected from the group consisting of proteases and alpha amylases; and (5) from about 1% to about 55% by weight of a surfactant selected from the group consisting of nonionic surfactants anionic surfactants, and mixtures of nonionic and anionic surfactants.
Claim 4
Dependent Claim
104 words
A stabilizing aqueous enzyme composition consisting of: (1) from about 1% to about 90% by weight of water; (2) from about 0.01% to about 6% by weight of acetic acid; (3) from about 0.1% to about 25% by weight of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; (4) from about 0.006% to about 5.0% by weight of an enzyme selected from the group consisting of proteases and alpha amylases; and (5) from about 1% to about 55% by weight of a surfactant selected from the group consisting of nonionic surfactants anionic surfactants, and mixtures of nonionic and anionic surfactants.
Claim 5
Dependent Claim
15 words
The composition of claim 2 wherein the pH is from about 6.5 to about 10.5.
Claim 6
Dependent Claim
16 words
The composition of claim 2 wherein the pH is from about 7 and to about 8.5.
Claim 7
Dependent Claim
19 words
The composition of claim 4 wherein the percent by weight of water is from about 40% to about 60%.
Claim 8
Dependent Claim
20 words
The composition of claim 5 wherein the percent by weight of the enzyme is from about 0.6% to about 2.5%.
Claim 9
Dependent Claim
20 words
The composition of claim 6 wherein the percent by weight of the surfactant is from about 20% to about 40%.
Claim 10
Dependent Claim
11 words
The composition of claim 7 wherein the enzymes are alkaline proteases.
Claim 11
Dependent Claim
10 words
The composition of claim 8 wherein the alkanolamine is triethanolamine.
Claim 12
Dependent Claim
40 words
The composition of claim 9 containing by weight from about 1% to about 25% of an alcohol selected from the group consisting of alcohols having the formula ROH wherein R is an alkyl of from one to six carbon atoms.
Claim 13
Dependent Claim
16 words
The composition of claim 10 wherein the percent by weight of the alcohol is about 10%.
Claim 14
Dependent Claim
10 words
The composition of claim 11 wherein the alcohol is ethanol.
Claim 15
Dependent Claim
29 words
The composition of claim 12 wherein the percent by weight of the triethanolamine is about 2%; and wherein the percent by weight of the acetic acid is about 0.6%.
Claim 16
Dependent Claim
41 words
The composition of claim 13 wherein the surfactant is an ethoxylated fatty alcohol having the formula: RO--(CH 2 CH 2 O) n H where R is from 8 to 18 carbon atoms and n is an integer from 1 to 500.
Claim 17
Dependent Claim
29 words
The composition of claim 12 wherein the percent by weight of the triethanolamine is about 5%; and wherein the percent by weight of the acetic acid is about 1.5%.
Claim 18
Dependent Claim
41 words
The composition of claim 15 wherein the surfactant is an ethoxylated fatty alcohol having the formula: RO--(CH 2 CH 2 O) n H where R is from 8 to 18 carbon atoms and n is an integer from 1 to 500.
Claim 19
Dependent Claim
46 words
The composition of claims 13 or 15 containing by weight of the composition: (1) from about 1% to about 10% sodium xylene sulfonate; and (2) from about 1% to about 75% of an isoparaffinic mixture of petroleum distallates having an average molecular weight of about 154.
Claim 20
Dependent Claim
36 words
The composition of claim 17 wherein the sodium xylene sulfonate is about 3% by weight of the total composition; and wherein the isoparaffinic mixture of petroleum distillates is about 10% by weight of the total composition.
Claim 21
Dependent Claim
113 words
The composition of claim 18 wherein the nonionic surfactant is a mixture of: (1) The condensation product of 1 mole of an hydrocarbon alcohol having from 12 to 13 carbon atoms in either a straight or branched chain configuration with an average of 6.5 moles of ethylene oxide; (2) the condensation product of 1 moles of an hydrocarbon alcohol, having from 12 to 15 carbon atoms in either a straight or branched chain configuration, with 9 moles of ethylene oxide; and (3) the condensation product of 1 mole of an hydrocarbon alcohol, having between 12 and 15 carbon atoms in either the straight or branched chain configuration, with 3 moles of ethylene oxide.
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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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |