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US3676374A
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Enzyme-containing liquid detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1970-11-20
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Granted: 1972-07-11
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Expires: 1990-11-20
Abstract
Abstract Liquid detergent compositions comprising a mixture of from about 2 percent to about 35 percent of an alkane sulfonate, alphaolefin sulfonate, or mixtures thereof having from about 10 to about 26 carbon atoms in the hydrocarbon chain; from about 2 percent to about 30 percent of an ethoxylated alcohol or alkyl phenol or sulfate thereof; and from about 0.001 percent to about 5.0 percent of enzyme. The detergent compositions have desirable enzyme activity upon storage and exhibit desirable levels of soil-removal performance.
Inventors
- 👤 Wahib Nassif Zaki
- 👤 Daniel Guy Jean Biard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:31
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38618; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C11D1/37; C11D1/66; C11D1/83; C11D3/38663
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
43 words
The liquid detergent composition of claim 1 wherein component (a) is present in an amount from about 10 percent to about 25 percent and component (b) is present in an amount from about 5% to about 20 percent and wherein X is sulfate.
Claim 2
Dependent Claim
82 words
said Component B is a mixture of water soluble salts of bifunctionally-substituted sulfur-containing saturated aliphatic compounds, containing from about 10 to about 24 carbon atoms, the functional units being hydroxy and sulfonate radicals with the sulfonate radical always being on the terminal carbon and the hydroxyl radical being attached to a carbon atom at least two carbon atoms removed from the terminal carbon atom, at least 90 percent of the hydroxy radical substitutions being in the three, four, and five positions; and
Claim 3
Dependent Claim
291 words
said Component C is a mixture comprising from about 30 - 95 percent water soluble salts of alkene disulfonates containing from about 10 to about 24 carbon atoms, and from about 5 percent to about 70 percent water soluble salts of hydroxy disulfonates containing from about 10 to about 24 carbon atoms, said alkene disulfonates containing a sulfonate group attached to a terminal carbon atom and a second sulfonate group attached to an internal carbon atom not more than about six carbon atoms removed from said terminal carbon atom, the alkene double bond being distributed between the terminal carbon atom and about the seventh carbon atom, said hydroxy disulfonates being saturated aliphatic compounds having a sulfonate radical attached to a terminal carbon, a second sulfonate group attached to an internal carbon atom not more than about six carbon atoms removed from said terminal carbon atom, and a hydroxy group attached to a carbon atom which is not more than about four carbon atoms removed from the site of attachment of said second sulfonate group or mixtures of said alkane sulfonate and said olefin sulfonate, said compounds having from about 10 to about 26 carbon atoms in the hydrocarbon chain; (b) from about 2 percEnt to about 30 percent of a compound having the formula: AEnX wherein A is alkyl of from eight to 30 carbon atoms or alkyl phenyl with from three to 22 carbon atoms in the alkyl chain; E is an alkyleneoxy radical selected from the group of ethyleneoxy and propyleneoxy; n is an integer from 1 - 30 and X is hydroxyl or sulfate; (c) from about 0.001 percent to about 5.0 percent of a proteolytic enzyme, and the balance of the composition to 100 percent being water.
Claim 4
Dependent Claim
21 words
The liquid detergent composition of claim 2 wherein component (b) has from 10 to 16 carbon atoms in the alkyl chain.
Claim 5
Dependent Claim
25 words
The liquid detergent composition of claim 1 wherein the alkane sulfonate or alpha-olefin sulfonate has from 12 - 20 carbon atoms in the hydrocarbon chain.
Claim 6
Dependent Claim
23 words
The liquid detergent composition of claim 1 wherein the amount of proteolytic enzyme employed is from about 0.1 percent to about 2.0 percent.
Claim 7
Dependent Claim
15 words
The liquid detergent composition of claim 5 wherein the proteolytic enzyme is from Bacillus subtilis.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |