Patent US4719044A successfully refreshed from Google Patents.
US4719044A
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US
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Polyglycol ethers containing amino groups as foam-depressing additives in low-foam detergent preparations
Assignee: Henkel AG and Co KGaA
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Filing: 1987-04-30
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Granted: 1988-01-12
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Expires: 2007-04-30
Abstract
Abstract Hydroxyalkyl polyethylene glycol ethers corresponding to the formula ##STR1## in which X is R 3 --CHOH--CHR 4 --(OCH 2 CH 2 ) n --, R 1 is a linear or branched C 1-6 alkyl, R 2 =R 1 or X, R 3 is a straight-chain C 6-18 alkyl, R 4 is hydrogen or a C 1-8 alkyl, and and n is an average number of from 3 to 20, with the proviso that the sum of the carbon atoms in R 3 and R 4 is from 6 to 18, are suitable for depressing foam in detergent preparations.
Inventors
- 👤 Robert Piorr
- 👤 Gilbert Schenker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:00
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/42; C11D1/44; C11D3/00; C11D3/0005; C11D3/0026
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
108 words
A method for depressing foam in detergent preparations comprising adding to said preparations a foam-depressing-effective amount of at least one compound of the formula ##STR4## wherein: X is R 3 --CHOH--CHR 4 --(OCH 2 CH 2 ) n --; R 1 is a linear or branched C 1-6 alkyl; R 2 is R 1 or X; R 3 is a linear C 6-18 alkyl; R 4 is H or a C 1-8 alkyl; and n is an average number of about from 3 to 20; with the proviso that the sum of the carbon atoms in R 3 and R 4 is of about from 6 to 18.
Claim 2
Independent Claim
108 words
A method for depressing foam in detergent preparations comprising adding to said preparations a foam-depressing-effective amount of at least one compound of the formula ##STR4## wherein: X is R 3 --CHOH--CHR 4 --(OCH 2 CH 2 ) n --; R 1 is a linear or branched C 1-6 alkyl; R 2 is R 1 or X; R 3 is a linear C 6-18 alkyl; R 4 is H or a C 1-8 alkyl; and n is an average number of about from 3 to 20; with the proviso that the sum of the carbon atoms in R 3 and R 4 is of about from 6 to 18.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein R 1 and R 2 are a C 3-4 alkyl.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein R 3 is a linear C 10-16 alkyl.
Claim 5
Dependent Claim
10 words
The method of claim 1 wherein R 4 is H.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein n is an average number from 5 to 15.
Claim 7
Dependent Claim
40 words
The method of claim 1 wherein R 1 and R 2 are a C 3-4 alkyl, R 3 is a linear C 10-16 alkyl, R 4 is H, and n is an average number of about from 5 to 15.
Claim 8
Dependent Claim
23 words
The method of claim 1 wherein at least one polyethylene glycol ether is added as an auxiliary foam inhibitor in an auxiliary-foam-inhibitive-effective amount.
Claim 9
Dependent Claim
25 words
The method of claim 1 wherein at least one polyglycerol polyethylene glycol alkyl ether is added as an auxiliary foam inhibitor in an auxiliary-foam-inhibitive-effective amount.
Claim 10
Dependent Claim
63 words
The method of claim 1 wherein at least one polyethylene glycol ether obtained by addition of from 4 to 20 parts by weight ethylene oxide onto 1 part by weight polyglycerol having a hydroxyl number of from 900 to 1200 and subsequent etherification of the free hydroxyls with C 4-8 alkyl halides, is added as an auxiliary foam inhibitor in an auxiliary-foam-inhibitive-effective amount.
Claim 11
Dependent Claim
21 words
The method of claim 9 wherein the ratio by weight of said formula I compound to said ether is about 1-9:1.
Claim 12
Dependent Claim
21 words
The method of claim 9 wherein the ratio by weight of said formula I compound to said ether is about 2.3-9:1.
Claim 13
Dependent Claim
63 words
The method of claim 6 wherein at least one polyethylene glycol ether obtained by addition of from 4 to 20 parts by weight ethylene oxide onto 1 part by weight polyglycerol having a hydroxyl number of from 900 to 1200 and subsequent etherification of the free hydroxyls with C 4-8 alkyl halides, is added as an auxiliary foam inhibitor in an auxiliary-foam-inhibitive-effective amount.
Claim 14
Dependent Claim
21 words
The method of claim 12 wherein the ratio by weight of said formula I compound to said ether is about 1-9:1.
Claim 15
Dependent Claim
21 words
The method of claim 12 wherein the ratio by weight of said formula I compound to said ether is about 2.3-9:1.
Claim 16
Dependent Claim
10 words
A detergent preparation resulting from the method of claim 1.
Claim 17
Dependent Claim
10 words
A detergent preparation resulting from the method of claim 2.
Claim 18
Dependent Claim
10 words
A detergent preparation resulting from the method of claim 5.
Claim 19
Dependent Claim
10 words
A detergent preparation resulting from the method of claim 9.
Claim 20
Dependent Claim
10 words
A detergent preparation resulting from the method of claim 12.
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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |