US4435307A
Expired / Lapsed
US
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Detergent cellulase
Assignee: Novo Nordisk AS
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Filing: 1981-04-23
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Granted: 1984-03-06
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Expires: 2001-04-23
Abstract
Abstract A harshness reducing, enzymatic additive for a main wash detergent based on a fungal cellulase, i.e., a cellulase produced by means of Humicola insolens. The enzymatic additive can be produced in high yields and has an extraordinarily high activity at alkaline pH values, whereby it is possible to mix the additive with a main wash detergent and perform the harshness reduction and the washing as a single operation.
Inventors
- 👤 Peder O. Barbesgaard
- 👤 Georg W. Jensen
- 👤 Poul Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:07
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/24; C12N9/2402; C12N9/2405; C12N9/2434; C12N9/2437; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38645; C12Y; C12Y302/00; C12Y302/01; C12Y302/01004
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
31 words
A harshness reducing detergent additive for a main wash detergent composition, comprising a non-dusting granulate containing a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea.
Claim 2
Dependent Claim
31 words
A harshness reducing detergent additive for a main wash detergent composition, comprising a non-dusting granulate containing a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea.
Claim 3
Dependent Claim
25 words
A harshness reducing agent according to claim 1, wherein the non-dusting granulate is coated with a whitening agent in combination with a dust binding agent.
Claim 4
Dependent Claim
16 words
A harshness reducing agent according to claim 2, wherein the whitening agent is TiO 2 .
Claim 5
Dependent Claim
34 words
A harshness reducing detergent additive for a main wash detergent composition, comprising a solution of a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea, and a non-ionic surfactant.
Claim 6
Dependent Claim
34 words
A harshness reducing detergent additive for a main wash detergent composition, comprising a solution of a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea, and a non-ionic surfactant.
Claim 7
Dependent Claim
14 words
A harshness reducing agent according to claim 2, which additionally contains a thickening agent.
Claim 8
Dependent Claim
62 words
A main wash detergent composition, which comprises detergent ingredients and a harshness reducing amount of a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea, said composition having a pH in a solution of 1 g of the main wash detergent composition in 1 liter of 10° German water in the range of from 7 to 10.
Claim 9
Dependent Claim
62 words
A main wash detergent composition, which comprises detergent ingredients and a harshness reducing amount of a fungal cellulase producible by a strain of Humicola insolens or Humicola grisea var. thermoidea, said composition having a pH in a solution of 1 g of the main wash detergent composition in 1 liter of 10° German water in the range of from 7 to 10.
Claim 10
Dependent Claim
34 words
A main wash detergent composition according to claim 6, wherein the harshness reducing agent is present in an amount corresponding to from 2.5 to 100 regular C x units/g of main wash detergent composition.
Claim 11
Dependent Claim
34 words
A main wash detergent composition according to claim 7, wherein the harshness reducing agent is present in an amount corresponding to from 5 to 50 regular C x units/g of main wash detergent composition.
Claim 12
Dependent Claim
15 words
A main wash detergent composition according to claim 8, which also contains a bacterial proteinase.
Claim 13
Dependent Claim
22 words
A main wash detergent composition according to claim 9, wherein the bacterial proteinase is a proteinase produced by means of Bacillus licheniformis.
Claim 14
Dependent Claim
18 words
A main wash detergent composition according to claim 10, wherein one of the detergent ingredients is a perborate.
Claim 15
Dependent Claim
77 words
A main wash method which comprises: washing cellulose containing textiles, at less than 70° C. with a main wash detergent composition having therein a proteolytic enzyme and a harshness reducing agent at a pH in the range of pH 7-10, said harshness reducing agent being a fungal cellulase producible by a strain of Humicola insolens (Humicola grisea var. thermoidea) and being present in a content of from 5 to 50 regular C x units/gram of detergent composition.
Claim 16
Dependent Claim
77 words
A main wash method which comprises: washing cellulose containing textiles, at less than 70° C. with a main wash detergent composition having therein a proteolytic enzyme and a harshness reducing agent at a pH in the range of pH 7-10, said harshness reducing agent being a fungal cellulase producible by a strain of Humicola insolens (Humicola grisea var. thermoidea) and being present in a content of from 5 to 50 regular C x units/gram of detergent composition.
Claim 17
Dependent Claim
18 words
A main wash method according to claim 12, wherein washing is carried out at less than 60° C.
Claim 18
Dependent Claim
23 words
A main wash method according to claim 12, wherein washing is carried out with from 20-60 regular C x units/liter of washing solution.
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) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |