US4287078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfactants derived from the reaction product of polyoxyalkylene polyols and polyglycidyl ethers and glycol-based antifreeze using same
Assignee: BASF Corp
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Filing: 1980-01-28
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Granted: 1981-09-01
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Expires: 2000-01-28
Abstract
Abstract A material formed by the reaction of (1) a poly-2-hydroxyalkyl derivative of a polyol having at least five hydroxyl groups, with at least three, and preferably nearly all, of said hydroxyl groups being substituted with one or more 2-hydroxyalkyl groups and (2) a polyglycidyl ether of a polyol, preferably a di- or triglycidyl ether of a polyoxyalkylene diol or triol. These materials have surfactant and defoaming abilities, and are useful in hard surface cleaning, textile and paper applications, and as defoaming agents. The compounds are especially useful as defoaming agent for glycol based antifreeze mixtures, and such antifreeze mixtures are also provided.
Inventors
- 👤 William K. Langdon
- 👤 Lester G. Lundsted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
54 words
A material formed by the reaction of (1) a poly-2-hydroxyalkyl derivative of a polyol having at least 5 hydroxyl groups, with at least 3 of said hydroxyl groups being substituted with 2-hydroxyalkyl groups and (2) a hydrophobic polyglycidyl ether of a polyoxyalkylene polyol said polyoxyalkylene polyol having a molecular weight greater than about 300.
Claim 2
Dependent Claim
54 words
A material formed by the reaction of (1) a poly-2-hydroxyalkyl derivative of a polyol having at least 5 hydroxyl groups, with at least 3 of said hydroxyl groups being substituted with 2-hydroxyalkyl groups and (2) a hydrophobic polyglycidyl ether of a polyoxyalkylene polyol said polyoxyalkylene polyol having a molecular weight greater than about 300.
Claim 3
Dependent Claim
66 words
The material defined in claim 1 in which the poly-2-hydroxyalkyl derivative of a polyol has the formula ##STR8## wherein Z is the nucleus of a polyol normally having y hydroxyl groups, y is an integer from 5 to 8, x is an integer from 3 to y, and R is hydrogen, methyl or ethyl with at least 50% of the R groups being methyl or ethyl.
Claim 4
Dependent Claim
13 words
The material defined in claim 2 in which Z is a sucrose nucleus.
Claim 5
Dependent Claim
13 words
The material defined in claim 2 in which Z is a glucose nucleus.
Claim 6
Dependent Claim
13 words
The material defined in claim 2 in which Z is a sorbitol nucleus.
Claim 7
Dependent Claim
16 words
The material defined in claim 1 in which the hydrophobic polyglycidyl ether is a diglycidyl ether.
Claim 8
Dependent Claim
45 words
The material defined in claim 6 in which the hydrophobic diglycidyl ether has the formula ##STR9## wherein R is hydrogen, methyl or ethyl with at least 50% of the R groups being methyl or ethyl groups, and n is an integer from 2 to 40.
Claim 9
Dependent Claim
16 words
The material defined in claim 1 in which the hydrophobic polyglycidyl ether is a triglycidyl ether.
Claim 10
Dependent Claim
94 words
An antifreeze composition comprising a glycol freezing point depressant, a corrosion inhibitor system, and a foam suppressing agent present in an amount of from about 0.001% to about 0.1% by weight of the antifreeze composition; said foam suppressing agent comprising the reaction product of (1) a poly-2-hydroxyalkyl derivative of a polyol having at least 5 hydroxyl groups, with at least 3 of said hydroxyl groups being substituted with one or more 2-hydroxyalkyl groups and (2) a hydrophobic polyglycidyl ether of a polyoxyalkylene polyol, said polyoxyalkylene polyol having a molecular weight greater than about 300.
Claim 11
Dependent Claim
94 words
An antifreeze composition comprising a glycol freezing point depressant, a corrosion inhibitor system, and a foam suppressing agent present in an amount of from about 0.001% to about 0.1% by weight of the antifreeze composition; said foam suppressing agent comprising the reaction product of (1) a poly-2-hydroxyalkyl derivative of a polyol having at least 5 hydroxyl groups, with at least 3 of said hydroxyl groups being substituted with one or more 2-hydroxyalkyl groups and (2) a hydrophobic polyglycidyl ether of a polyoxyalkylene polyol, said polyoxyalkylene polyol having a molecular weight greater than about 300.
Claim 12
Dependent Claim
67 words
The antifreeze composition defined in claim 9 in which the poly-2-hydroxyalkyl derivative of a polyol has the formula ##STR10## wherein Z is the nucleus of a polyol normally having y hydroxyl groups, y is an integer from 5 to 8, x is an integer from 3 to y, and R is hydrogen, methyl or ethyl with at least 50% of the R groups being methyl or ethyl.
Claim 13
Dependent Claim
14 words
The antifreeze composition defined in claim 10 in which Z is a sucrose nucleus.
Claim 14
Dependent Claim
14 words
The antifreeze composition defined in claim 10 in which Z is a glucose nucleus.
Claim 15
Dependent Claim
14 words
The antifreeze composition defined in claim 10 in which Z is a sorbitol nucleus.
Claim 16
Dependent Claim
17 words
The antifreeze composition defined in claim 9 in which the hydrophobic polyglycidyl ether is a diglycidyl ether.
Claim 17
Dependent Claim
48 words
The antifreeze composition defined in claim 14 in which the hydrophobic diglycidyl ether is a compound having the formula ##STR11## wherein R is hydrogen, methyl or ethyl with at least 50% of the R groups being methyl or ethyl, and n is an integer from 2 to 40.
Claim 18
Dependent Claim
17 words
The antifreeze composition defined in claim 9 in which the hydrophobic polyglycidyl ether is a triglycidyl ether.
Claim 19
Dependent Claim
103 words
An antifreeze composition as defined in claim 9 in which the corrosion inhibitor system comprises from 0.01% to 1% by weight of the antifreeze of at least one substance selected from the group consisting of a. compounds corresponding to the structural formula ##STR12## wherein R 1 is an alkylene radical containing from 0 to 12 carbon atoms, R 2 is an alkyl radical containing from 1 to 10 carbon atoms and R 3 is an alkylene radical containing from 1 to 12 carbon atoms, and b. the mono- and di-metal salts, the mono- and di-ammonium salts, and the mono- and di-amides of a.
Claim 20
Dependent Claim
13 words
An antifreeze composition as defined in claim 10 wherein the inhibitor comprises 1-carboxy-2-hexyl-5-(7-carboxyheptyl)-cyclohex-3-ene.
References Cited (Backward Citations)
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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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |