US4060501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novolak derivatives as defoamers
Assignee: Huntsman Corp
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Filing: 1976-08-30
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Granted: 1977-11-29
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Expires: 1996-08-30
Abstract
Abstract Novel defoamer and foam inhibitor compositions comprising the reaction product obtained by alkoxylating a novolak resin having a functionality less than 3, said alkoxylation being carried out with ethylene oxide and a higher alkylene oxide of 3 carbons or more in a manner such that the final defoamer composition has a cloud point of 10°-60° C. Said defoamer compositions are particularly useful as a minor portion of a dishwater detergent, and can be used in defoaming and inhibiting foam formation and in diverse types of normally foamable systems, particularly aqueous systems.
Inventors
- 👤 Carter G. Naylor
- 👤 Ernest L. Yeakey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C11D3/16; C11D3/37; C11D3/3703
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
114 words
A composition useful as a defoamer and foam inhibitor comprising the reaction product obtained by alkoxylating a novolak resin having a functionality less than 3, said alkoxylation being carried out with ethylene oxide and a higher alkylene oxide of 3 carbons or more in a manner such that the final defoamer composition has a cloud point of 10°-60° C by first alkoxylating said novolak resin with ethylene oxide or a mixture of ethylene oxide and said higher alkylene oxide wherein said ethylene oxide predominates in said mixture, and effecting a final alkoxylation with said higher alkylene oxide or a mixture of ethylene oxide and said higher alkylene oxide wherein said higher alkylene oxide predominates.
Claim 2
Dependent Claim
114 words
A composition useful as a defoamer and foam inhibitor comprising the reaction product obtained by alkoxylating a novolak resin having a functionality less than 3, said alkoxylation being carried out with ethylene oxide and a higher alkylene oxide of 3 carbons or more in a manner such that the final defoamer composition has a cloud point of 10°-60° C by first alkoxylating said novolak resin with ethylene oxide or a mixture of ethylene oxide and said higher alkylene oxide wherein said ethylene oxide predominates in said mixture, and effecting a final alkoxylation with said higher alkylene oxide or a mixture of ethylene oxide and said higher alkylene oxide wherein said higher alkylene oxide predominates.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein sai higher alkylene oxide is propylene oxide.
Claim 4
Dependent Claim
30 words
The composition of claim 1 wherein said alkoxylation is carried out by first alkoxylating said novolak resin with ethylene oxide followed by a final alkoxyation with said higher alkylene oxide.
Claim 5
Dependent Claim
13 words
The composition of claim 3 wherein said higher alkylene oxide is propylene oxide.
Claim 6
Dependent Claim
36 words
The composition of claim 1 wherein said initial alkoxylation is carried out by reacting said novolak resin with ethylene oxide followed by a final alkoxylation with a mixture of said higher alkylene oxide and ethylene oxide.
Claim 7
Dependent Claim
13 words
The composition of claim 5 wherein said higher alkylene oxide is propylene oxide.
Claim 8
Dependent Claim
36 words
The composition of claim 1 wherein said first alkoxylation of said novolak is carried out utilizing a mixture of ethylene oxide and said higher alkylene oxide followed by a final alkoxylation with said higher alkylene oxide.
Claim 9
Dependent Claim
46 words
The composition of claim 1 wherein said first alkoxylation of said novolak resin is carried out by utilizing a mixture of ethylene oxide and higher alkylene oxide, and said final alkoxylation is carried out by utilizing a mixture of said higher alkylene oxide and ethylene oxide.
Claim 10
Dependent Claim
13 words
The composition of claim 7 wherein said higher alkylene oxide is propylene oxide.
Claim 11
Dependent Claim
13 words
The composition of claim 8 wherein said higher alkylene oxide is propylene oxide.
Claim 12
Dependent Claim
80 words
The composition of claim 1 wherein said alkoxylation is carried out by first alkoxylating said novolak resin with ethylene oxide or a mixture of ethylene oxide or a mixture of ethylene oxide and a higher alkylene oxide wherein 60-90 weight percent of said mixture is ethylene oxide, and effecting a final alkoxylation with a higher alkylene oxide or a mixture of said higher alkylene oxide and ethylene oxide wherein 60-90 weight percent of said mixture is a higher alkylene oxide.
Claim 13
Dependent Claim
13 words
The composition of claim 11 herein said higher alkylene oxide is proylene oxide.
Claim 14
Dependent Claim
14 words
The composition of claim 1 wherein said novolak resin has a functionality of 2-3.
Claim 15
Dependent Claim
10 words
The composition of claim 13 wherein said functionality is 2.3-2.7.
Claim 16
Dependent Claim
28 words
A process of defoaming and inhibiting foam formation in a system which normally tends to be foamable which comprises incorporating in said system the composition of claim 1.
Claim 17
Dependent Claim
12 words
The process of claim 15 wherein said system is an aqueous system.
Claim 18
Dependent Claim
13 words
The process of claim 16 wherein said aqueous system is a dishwater detergent.
Claim 19
Dependent Claim
46 words
A detergent composition comrpising an alkaline inorganic detergent and a synthetic organic detergent selected from the group consisting of an alkyl aryl sulfonate, an alkanol amide, an alkyl aryl polyether and mixtures thereof having also incorporated therein in a minor amount the composition of claim 1.
Claim 20
Dependent Claim
30 words
The composition of claim 18 wherein the composition of claim 1 is present in an amount of 0.5 . 15 percent by weight based on the total detergent compostion weight.
Claim 21
Dependent Claim
14 words
A detergent composition comprising an alkaline inorganic detergent and the composition of claim 1.
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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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |