Patent US4087398A successfully refreshed from Google Patents.
US4087398A
Expired / Lapsed
US
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Antifoam compositions
Assignee: Henkel AG and Co KGaA
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Filing: 1976-11-29
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Granted: 1978-05-02
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Expires: 1996-11-29
Abstract
Abstract Liquid dispersions of the higher (C 22-70 ) aliphatic ketones and higher (C 22-70 ) aliphatic secondary alcohols are effective antifoaming agents when they are of fine particle size. The particle size should be at least sufficiently small that the dispersion does not substantially separate under normal storage conditions. The dispersed phase can be water or an organic liquid in which the dispersed phase is substantially insoluble. The dispersions are effective anti-foam agents for most industrial purposes, and are suitable for use in oil and latex paints.
Inventors
- 👤 Rudi Heyden
- 👤 Adolf Asbeck
- 👤 Michael Eckelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C; C09; C09D; C09D7/00; C09D7/40; C09D7/47; A; A61; A61M; A61M15/00; A61M15/0091; C08; C08K; C08K5/00; C08K5/04; C08K5/07
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
121 words
A dispersion useful as a foam suppressant, wherein the continuous phase is an organic liquid having a solidification point below 5° C. and a boiling point above 80° C. and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of the C 22-70 aliphatic ketones, C 22-70 aliphatic secondary alcohols, and mixtures thereof, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
Claim 2
Dependent Claim
121 words
A dispersion useful as a foam suppressant, wherein the continuous phase is an organic liquid having a solidification point below 5° C. and a boiling point above 80° C. and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of the C 22-70 aliphatic ketones, C 22-70 aliphatic secondary alcohols, and mixtures thereof, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
Claim 3
Dependent Claim
18 words
A dispersion according to claim 1 wherein the aliphatic component has a chain length of 23-43 carbon atoms.
Claim 4
Dependent Claim
15 words
A dispersion according to claim 1 wherein said ketones and alcohols are alkanones and alkanols.
Claim 5
Dependent Claim
28 words
A dispersion according to claim 1 wherein the particle size of the aliphatic component is such that the dispersion exhibits the Tyndall effect when viewed by transmitted light.
Claim 6
Dependent Claim
14 words
A dispersion according to claim 1 wherein the continuous phase thereof is mineral oil.
Claim 7
Dependent Claim
24 words
A dispersion according to claim 1 wherein the weight of the aliphatic component is 5% to 15% of the total weight of said dispersion.
Claim 8
Dependent Claim
25 words
A dispersion according to claim 1 containing an effective amount of a substance known to have a defoaming action as fortifying agent for said dispersion.
Claim 9
Dependent Claim
14 words
A dispersion according to claim 1 containing a water-insoluble polyvalent metal soap as thickener.
Claim 10
Dependent Claim
12 words
A dispersion according to claim 8 wherein the soap is aluminum stearate.
Claim 11
Dependent Claim
16 words
A dispersion according to claim 1 wherein said aliphatic component contains 22 to 50 carbon atoms.
Claim 12
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 12-tricosanone.
Claim 13
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 16-hentriacontanone.
Claim 14
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 18-pentatriacontanone.
Claim 15
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is behenone.
Claim 16
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 12-tricosanol.
Claim 17
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 16-hentriacontanol.
Claim 18
Dependent Claim
12 words
A dispersion according to claim 1 wherein said aliphatic component is 18-pentatriacontanol.
Claim 19
Dependent Claim
22 words
A dispersion according to claim 1 wherein said aliphatic component is a 50% by weight mixture of said ketone and said alcohol.
Claim 20
Dependent Claim
37 words
A method of decreasing the tendency of a liquid to form foam when agitated with inclusion of air, which comprises adding to said liquid a small but effective amount therefor of a dispersion according to claim 1.
Claim 21
Dependent Claim
13 words
A method according to claim 19 wherein said liquid is a latex paint.
Claim 22
Dependent Claim
110 words
A dispersion useful as a foam suppressant, wherein the continuous phase is water and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of C 22-70 aliphatic secondary alcohols, and mixtures of C 22-70 aliphatic secondary alcohols and of C 22-70 aliphatic-ketones, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
Claim 23
Dependent Claim
110 words
A dispersion useful as a foam suppressant, wherein the continuous phase is water and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of C 22-70 aliphatic secondary alcohols, and mixtures of C 22-70 aliphatic secondary alcohols and of C 22-70 aliphatic-ketones, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
Claim 24
Dependent Claim
18 words
A dispersion according to claim 21 wherein the aliphatic component has a chain length of 23-43 carbon atoms.
Claim 25
Dependent Claim
15 words
A dispersion according to claim 21 wherein said ketones and alcohols are alkanones and alkanols.
Claim 26
Dependent Claim
28 words
A dispersion according to claim 21 wherein the particle size of the aliphatic component is such that the dispersion exhibits the Tyndall effect when viewed by transmitted light.
Claim 27
Dependent Claim
24 words
A dispersion according to claim 21 wherein the weight of the aliphatic component is 5% to 15% of the total weight of said dispersion.
Claim 28
Dependent Claim
25 words
A dispersion according to claim 21 containing an effective amount of a substance known to have a defoaming action as fortifying agent for said dispersion.
Claim 29
Dependent Claim
14 words
A dispersion according to claim 21 containing a water-insoluble polyvalent metal soap as thickener.
Claim 30
Dependent Claim
12 words
A dispersion according to claim 21 wherein the soap is aluminum stearate.
Claim 31
Dependent Claim
16 words
A dispersion according to claim 21 wherein said aliphatic component contains 22 to 50 carbon atoms.
Claim 32
Dependent Claim
12 words
A dispersion according to claim 21 wherein said aliphatic component is 12-tricosanol.
Claim 33
Dependent Claim
12 words
A dispersion according to claim 21 wherein said aliphatic component is 16-hentriacontanol.
Claim 34
Dependent Claim
12 words
A dispersion according to claim 21 wherein said aliphatic component is 18-pentatriacontanol.
Claim 35
Dependent Claim
22 words
A dispersion according to claim 21 wherein said aliphatic component is a 50% by weight mixture of said ketone and said alcohol.
Claim 36
Dependent Claim
37 words
A method of decreasing the tendency of a liquid to form foam when agitated with inclusion of air, which comprises adding to said liquid a small but effective amount therefor of a dispersion according to claim 21.
Claim 37
Dependent Claim
13 words
A method according to claim 34 wherein said liquid is a latex paint.
Claim 38
Dependent Claim
129 words
A latex paint which contains a small but effective amount as anti-foam agent of a dispersion, wherein the continuous phase is a liquid having s solidification point below 5° C. and a boiling point above 80° C. and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of the C 22-70 aliphatic ketones, C 22-70 aliphatic secondary alcohols, and mixtures thereof, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
Claim 39
Dependent Claim
129 words
A latex paint which contains a small but effective amount as anti-foam agent of a dispersion, wherein the continuous phase is a liquid having s solidification point below 5° C. and a boiling point above 80° C. and wherein the dispersed phase comprises at least 1% based on the weight of said dispersion of a higher aliphatic component selected from the group consisting of the C 22-70 aliphatic ketones, C 22-70 aliphatic secondary alcohols, and mixtures thereof, said continuous phase being substantially a non-solvent for said aliphatic component; the size of the particles of said dispersed phase being such that the dispersion does not separate on standing for two weeks at 20° C.; the amount of said dispersed phase being such that said dispersion is fluid at 40° C.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |