US4230592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled foam detergent additive
Assignee: Lever Industrial Co
•
Filing: 1979-05-31
•
Granted: 1980-10-28
•
Expires: 1999-05-31
Abstract
Abstract Liquid additive for caustic soda cleaning solutions. Provides surfactants, foam control, and scale control; and good wetting and emulsifying properties for improved cleaning and ease of rinsing.
Inventors
- 👤 Jack Miller
- 👤 Thomas C. Tesdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/044; C11D3/16; C11D3/20; C11D3/2075; C11D3/2082; C11D3/36; C11D3/364
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
Composition consisting essentially of: ______________________________________
Components Wt. %
______________________________________
Water 6.0-86.95
Potassium hydroxide, dry basis
1.4-6.9
Amino tri methyl phosphonic acid,
40% active 2.0-10.0
100% active 0.8-4.0
Cycloaliphatic C.sub.21 dicarboxylic acid
of the formula 0.5-8.0
##STR2##
in which one X is hydrogen and the other is a
carboxylic acid group.
Sodium glucoheptonate or gluconate
5.0-35.0
Sodium nitrite 0.5-5.0
Linear alcohol alkoxylate, being an alpha
0.05-5.0
alkyl hydroxypolyoxyethylene/oxypropylene
cyclic polymer in which alkyl is C.sub.12-15,
oxyethylene content is 8-13 moles,
oxypropylene content is 7-30 moles, average
moles of ethylene oxide is 9, and average moles
of propylene oxide is 15
Alkyl glucosides in which alkyl has 6-18
carbon atoms, 70% active 2.0-16.0
100% active 1.4-11.2
______________________________________
Claim 2
Dependent Claim
115 words
Composition consisting essentially of: ______________________________________
Components Wt. %
______________________________________
Water 6.0-86.95
Potassium hydroxide, dry basis
1.4-6.9
Amino tri methyl phosphonic acid,
40% active 2.0-10.0
100% active 0.8-4.0
Cycloaliphatic C.sub.21 dicarboxylic acid
of the formula 0.5-8.0
##STR2##
in which one X is hydrogen and the other is a
carboxylic acid group.
Sodium glucoheptonate or gluconate
5.0-35.0
Sodium nitrite 0.5-5.0
Linear alcohol alkoxylate, being an alpha
0.05-5.0
alkyl hydroxypolyoxyethylene/oxypropylene
cyclic polymer in which alkyl is C.sub.12-15,
oxyethylene content is 8-13 moles,
oxypropylene content is 7-30 moles, average
moles of ethylene oxide is 9, and average moles
of propylene oxide is 15
Alkyl glucosides in which alkyl has 6-18
carbon atoms, 70% active 2.0-16.0
100% active 1.4-11.2
______________________________________
Claim 3
Dependent Claim
59 words
Composition according to claim 1, consisting essentially of: ______________________________________
Components Wt. %
______________________________________
Water 27.0-73.75
Caustic potash (Potassium
hydroxide, 45-47%) 5.5-12.0
Amino tri methyl phosphonic acid, 40% active
3.75-8.0
Cycloaliphatic C.sub.21 dicarboxylic acid
1.50-4.0
Sodium glucoheptonate 10.0-30.0
Sodium nitrite 1.0-3.0
Linear alcohol alkoxylate
0.5-4.0
Alkyl glucosides in which alkyl is 45%
C.sub.8 and 55% C.sub.10 70% active
4.0-12.0
______________________________________
Claim 4
Dependent Claim
48 words
Composition according to claim 2, consisting essentially of: ______________________________________
Components Wt. %
______________________________________
Water 49.25
Caustic potash (Potassium hydroxide, 45-47%)
9.50
Amino tri methyl phosphonic acid, 40% active
6.25
Cycloaliphatic C.sub.21 dicarboxylic acid
2.50
Sodium glucoheptonate 20.00
Sodium nitrite 2.00
Linear alcohol alkoxylate 2.00
Alkyl glucosides 8.50
______________________________________
References Cited (Backward Citations)
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US3673098A
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |