US3635828A
Expired / Lapsed
US
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Enzyme-containing detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1969-12-29
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Granted: 1972-01-18
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Expires: 1989-12-29
Abstract
Abstract Soil- and stain-removing detergent compositions consisting essentially of a water-soluble synthetic organic detergent and from 0.01 to 2 percent of a lipoxidase having enzymatic activity over the ranges of 5* C. to 70* C. and pH 5 to 11 are disclosed. The lipoxidase-containing detergent compositions can optionally contain a fatty acid substrate having cis-, cis-double bonds or an alkyl ester thereof for coupled oxidation of stains. Inorganic peroxy compounds can also be employed. The compositions of the invention are particularly adapted to the treatment of textile materials having soils or stains which have a content of polyunsaturated components.
Inventors
- 👤 Lawrence Benjamin
- 👤 John F Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38654
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
39 words
The enzyme-containing detergent composition of claim 1 wherein the lipoxidase is a preparation consisting essentially of a mixture of from 1 percent to 50 percent lipoxidase and from 50 percent to 99 percent of inert carrier or vehicle materials.
Claim 2
Dependent Claim
19 words
The composition of claim 2 wherein the lipoxidase preparation has an activity of from 10,000 to 50,000 activity units/mg.
Claim 3
Dependent Claim
24 words
The detergent composition of claim 3 wherein the lipoxidase preparation is present in an amount by weight of from 0.1 percent to 20 percent.
Claim 4
Dependent Claim
12 words
The detergent composition of claim 4 wherein the lipoxidase is soybean lipoxidase.
Claim 5
Dependent Claim
35 words
The detergent composition of claim 5 wherein a water-soluble alkaline detergency builder salt is present in a ratio of said water-soluble alkaline detergency builder salt to water-soluble synthetic organic detergent of from 1:4 to 20:1.
Claim 6
Dependent Claim
32 words
The detergent composition of claim 6 wherein a fatty acid having from 12 to 20 carbon atoms and methylene-interrupted cis-, cis-double bonds or a C1 to C3 alkyl ester thereof is present.
Claim 7
Dependent Claim
23 words
The detergent composition of claim 7 wherein an inorganic peroxy compound is present in an amount of from 1 percent to 30 percent.
Claim 8
Dependent Claim
13 words
The detergent composition of claim 8 wherein the fatty acid is linoleic acid.
Claim 9
Dependent Claim
14 words
The detergent composition of claim 9 wherein the inorganic peroxy compound is sodium perborate.
References Cited (Backward Citations)
US3451935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |