US3990905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food process antifoam
Assignee: ChampionX LLC
•
Filing: 1976-02-09
•
Granted: 1976-11-09
•
Expires: 1996-02-09
Abstract
Abstract A defoaming composition comprising a bis-amide, a liquid hydrocarbon oil, and optionally a surfactant having an HLB of at least 6. The composition may be used to abate and prevent foam formation in sugar beet raw liquor.
Inventors
- 👤 Raymond J. Wachala
- 👤 Ralph E. Svetic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:46
CPC Classifications
C; C13; C13B; C13B30/00; C13B30/002; C13B30/005; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413; C13B10/00; C13B10/003
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
52 words
An antifoam composition consisting essentially of 0.1-10% by weight of a bis-amide having the structure ##EQU1## where: n is an integer from 1-6; and R is a saturated or unsaturated, straight or branched chain aliphatic group having from 5-22 carbon atoms; and the remainder of the composition being a liquid hydrocarbon oil.
Claim 2
Dependent Claim
52 words
An antifoam composition consisting essentially of 0.1-10% by weight of a bis-amide having the structure ##EQU1## where: n is an integer from 1-6; and R is a saturated or unsaturated, straight or branched chain aliphatic group having from 5-22 carbon atoms; and the remainder of the composition being a liquid hydrocarbon oil.
Claim 3
Dependent Claim
20 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, with the remainder being a substantially non-toxic mineral oil.
Claim 4
Dependent Claim
20 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, with the remainder being a substantially non-toxic mineral oil.
Claim 5
Dependent Claim
44 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, 0.1-30% by weight of a surfactant with HLB of up to 18 which is oil dispersible to the extent of at least 5% by weight, with the remainder being a liquid hydrocarbon oil.
Claim 6
Dependent Claim
44 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, 0.1-30% by weight of a surfactant with HLB of up to 18 which is oil dispersible to the extent of at least 5% by weight, with the remainder being a liquid hydrocarbon oil.
Claim 7
Dependent Claim
42 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, 0.1-30% by weight of a surfactant with HLB between 5-18 which is oil dispersible to the extent of at least 5% by weight, with the remainder being a liquid hydrocarbon oil.
Claim 8
Dependent Claim
42 words
An antifoam composition consisting essentially of 0.1-10% by weight of ethylene-bis-stearamide, 0.1-30% by weight of a surfactant with HLB between 5-18 which is oil dispersible to the extent of at least 5% by weight, with the remainder being a liquid hydrocarbon oil.
Claim 9
Dependent Claim
19 words
The antifoam composition of claim 4 where the surfactant is capable of producing a water-in-oil emulsion of the ethylene-bis-stearamide.
Claim 10
Dependent Claim
81 words
An antifoam composition consisting essentially of 0.1-10% by weight of a bis-amide having the structure ##STR3## where: R is a saturated or unsaturated, straight or branched chain aliphatic group having from 5-22 carbon atoms; - 15% by weight of a compound selected from the group consisting of water-insoluble fatty acid esters, fatty acids, and salts of fatty acids derived from edible fats and oils; 0-15% of an ethoxylated propyoxylated alcohol; and the remainder of the composition being a liquid hydrocarbon oil.
Claim 11
Dependent Claim
81 words
An antifoam composition consisting essentially of 0.1-10% by weight of a bis-amide having the structure ##STR3## where: R is a saturated or unsaturated, straight or branched chain aliphatic group having from 5-22 carbon atoms; - 15% by weight of a compound selected from the group consisting of water-insoluble fatty acid esters, fatty acids, and salts of fatty acids derived from edible fats and oils; 0-15% of an ethoxylated propyoxylated alcohol; and the remainder of the composition being a liquid hydrocarbon oil.
Claim 12
Dependent Claim
11 words
The antifoam composition of claim 6 wherein the bis-amide is ethylene-bis-stearamide.
Claim 13
Dependent Claim
33 words
A method for abating and preventing foam formation in sugar beet raw liquor comprising adding to the sugar beet raw liquor from 100-3000 ppm by weight of the antifoam composition of claim 1.
Claim 14
Dependent Claim
33 words
A method for abating and preventing foam formation in sugar beet raw liquor comprising adding to the sugar beet raw liquor from 100-3000 ppm by weight of the antifoam composition of claim 2.
Claim 15
Dependent Claim
33 words
A method for abating and preventing foam formation in sugar beet raw liquor comprising adding to the sugar beet raw liquor from 100-3000 ppm by weight of the antifoam composition of claim 3.
Claim 16
Dependent Claim
33 words
A method for abating and preventing foam formation in sugar beet raw liquor comprising adding to the sugar beet raw liquor from 100-3000 ppm by weight of the antifoam composition of claim 6.
Claim 17
Dependent Claim
20 words
The method of claim 11 wherein the antifoam composition is added to the sugar beet raw liquor at the diffuser.
References Cited (Backward Citations)
US2871148A
Cited
US3231508A
Cited
US3595695A
Cited
US3673105A
Cited
US3746576A
Cited
US3923683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |