US4600523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyalkyl polyethylene glycol ether foam inhibitors
Assignee: Henkel AG and Co KGaA
•
Filing: 1984-12-13
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Granted: 1986-07-15
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Expires: 2004-12-13
Abstract
Abstract An additive for cleaning preparations comprising a foam-inhibitive effective amount of a compound of the formula R.sup.1 --CHOH--CHR.sup.2 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.3 wherein: R 1 is a straight-chain C 6-16 -alkyl; R 2 is H or a C 1-8 -alkyl; R 3 is a straight-chain or branched C 4-8 -alkyl; and n is a number average of about 7 to 12; with the proviso that the total number of carbon atoms in R 1 and R 2 is between 6 and 16; and a method of inhibiting foam.
Inventors
- 👤 Robert Piorr
- 👤 Hans-Joachim Schluessler
- 👤 Peter Nikolaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3707; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08L; C08L71/00; C08L71/02; C08L71/03; C11D1/00; C11D1/66; C11D1/72; C11D1/721; C11D3/0005; C11D3/0026; C11D3/20; C11D3/2068
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
103 words
A method of inhibiting foam in an aqueous cleaning preparation or a solid or liquid concentrate for preparation of the same, comprising incorporating therein a foam-inhibitive effective amount of at least one first compound of the formula R.sup.1 --CHOH--CHR.sup.2 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.3 wherein: R 1 is a straight-chain C 6-16 -alkyl; R 2 is H or a C 1-8 -alkyl; R 3 is a straight-chain or branched C 4-8 -alkyl; and n is a number average of about 7 to 12; with the proviso that the total number of carbon atoms in R 1 and R 2 is between 6 and 16.
Claim 2
Independent Claim
103 words
A method of inhibiting foam in an aqueous cleaning preparation or a solid or liquid concentrate for preparation of the same, comprising incorporating therein a foam-inhibitive effective amount of at least one first compound of the formula R.sup.1 --CHOH--CHR.sup.2 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.3 wherein: R 1 is a straight-chain C 6-16 -alkyl; R 2 is H or a C 1-8 -alkyl; R 3 is a straight-chain or branched C 4-8 -alkyl; and n is a number average of about 7 to 12; with the proviso that the total number of carbon atoms in R 1 and R 2 is between 6 and 16.
Claim 3
Dependent Claim
77 words
The method of claim 1 wherein at least one second compound is admixed with said at least one first compound in a weight ratio of about 1:1-9, said second compound being the reaction product of 1 part by weight of polyglycerol having a hydroxyl number of about 900 to 1,200 ethoxylated with about 4 to 20 parts by weight of ethylene oxide, whose free hydroxyl groups are then etherified with at least one C 4-8 -alkyl halide.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein said first compound is present in a concentration of about 10 to 2,500 ppm in the ready-to-use cleaning preparation.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein said first compound is present in a concentration of about 50 to 500 ppm in the ready-to-use cleaning preparation.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein R 1 is C 12-16 .
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein R 2 is H.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein R 3 is n-butyl, n-hexyl, or n-octyl.
Claim 9
Dependent Claim
16 words
The method of claim 1 wherein n is a number average of about 8 to 10.
Claim 10
Dependent Claim
27 words
The method of claim 1 wherein R 1 is C 12-16 , R 2 is H, and n is a number average of about 8 to 10.
Claim 11
Dependent Claim
10 words
The method of claim 9 wherein R 3 is n-butyl.
Claim 12
Dependent Claim
31 words
The method of claim 2 said admixture of said first compound and said second compound is present in a concentration of about 10 to 2,500 ppm in the ready-to-use cleaning preparation.
Claim 13
Dependent Claim
32 words
The method of claim 2 wherein said admixture of said first compound and said second compound is present in a concentration of about 50 to 500 ppm in the ready-to-use cleaning preparation.
Claim 14
Dependent Claim
20 words
The method of claim 2 wherein said weight ratio of said second compound to said first compound is about 1:2.3-9.
References Cited (Backward Citations)
US3081354A
Cited
US3240819A
Cited
US3242200A
Cited
US3463737A
Cited
US3491029A
Cited
DE1621592A1
Cited
DE1621593A1
Cited
US3829508A
Cited
US3696057A
Cited
US3829506A
Cited
US4088598A
Cited
US4312768A
Cited
US4364777A
Cited
US4375565A
Cited
EP0088039A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |