Patent US4092266A successfully refreshed from Google Patents.
US4092266A
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Process for removing foam from aqueous systems and composition useful therein
Assignee: Novartis AG
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Filing: 1976-06-07
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Granted: 1978-05-30
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Expires: 1996-06-07
Abstract
Abstract A process for removing foam from aqueous systems such as for example effluents or dyeing and finishing baths for treating textile materials is provided. The wetting and anti-foaming compositions used in this process contain (1) 2 to 50 percent by weight of an anionic surfactant, (2) 6 to 50 percent by weight of A water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, A reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, A reaction product of alkylene oxides and an alkylphenol, a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols, A reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol and 1,2-propylene oxide, Or A reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine and 1,2-propylene oxide, (3) 0.1 to 30 percent by weight of silicone oil and (4) 2 to 92 percent by weight of water.
Inventors
- 👤 Heinz Abel
- 👤 Alfred Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:10
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65118; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/008; C09B67/00; C09B67/0071; C09B67/0084; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D3/00; C11D3/0005; C11D3/0026; C11D3/16; C11D3/20; C11D3/2068; C11D3/26; C11D3/30; C11D3/37; C11D3/3703; C11D3/373; D06L; D06L4/00; D06L4/60; D06L4/671; D06P1/52; D06P1/5264; D06P1/5292; D06P1/60; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/05; Y10S516/06; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
265 words
A process for removing foam from aqueous systems which comprises incorporating into said aqueous system 0.001 to 20 grams per liter of a wetting and anti-foaming agent consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR13## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl, ##STR14## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and an alkylphenol, a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol and 1,2-propylene oxide, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine and 1,2-propylene oxide, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
Claim 2
Dependent Claim
265 words
A process for removing foam from aqueous systems which comprises incorporating into said aqueous system 0.001 to 20 grams per liter of a wetting and anti-foaming agent consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR13## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl, ##STR14## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and an alkylphenol, a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol and 1,2-propylene oxide, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine and 1,2-propylene oxide, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
Claim 3
Dependent Claim
49 words
A process according to claim 1, wherein the wetting and anti-foaming agent contains 10 to 50 percent by weight of component (1), 10 to 50 percent by weight of component (2), 0.01 to 30 percent by weight of component (3) and 2 to 80 percent by weight of water.
Claim 4
Dependent Claim
41 words
A process according to claim 2, wherein the aqueous system from which foam is removed are dyebaths and finishing baths for textile materials which comprises incorporating into the dyebaths 0.1 to 10 grams per liter of the wetting and antifoaming agent.
Claim 5
Dependent Claim
39 words
A process according to claim 1, wherein the wetting and anti-foaming agent contains 10 to 20 percent by weight of component (1), 15 to 30 percent by weight of component (2), 40 to 75 percent by weight of water.
Claim 6
Dependent Claim
18 words
A process according to claim 4, wherein the aqueous system from which foam is removed is an effluent.
Claim 7
Dependent Claim
39 words
A process according to claim 1, wherein component (1) is a compound of the formula R--A--(CH.sub.2 CH.sub.2 O).sub.n --X wherein R, A and X are as defined in claim 1 and n is an integer from 1 to 9.
Claim 8
Dependent Claim
15 words
A process according to claim 6, wherein n is an integer from 1 to 4.
Claim 9
Dependent Claim
48 words
A process according to claim 1, wherein component (1) is a compound of the formula R.sub.2 O--(CH.sub.2 CH.sub.2 O).sub.n --X wherein R 2 is a saturated or unsaturated hydrocarbon radical or alkylphenol of 10 to 18 carbon atoms, and X and n are as defined in claim 1.
Claim 10
Dependent Claim
35 words
A process according to claim 1, wherein component (1) is a compound of the formula ##STR15## wherein p is an integer of 4 to 12 and n and X are as defined in claim 1.
Claim 11
Dependent Claim
37 words
A process according to claim 9, wherein component (1) is a compound of the formula ##STR16## wherein q is an integer from 1 to 3 and X 1 is hydrogen, NH 4 or an alkali metal cation.
Claim 12
Dependent Claim
57 words
A process according to claim 1, wherein component (1) is a compound of the formula ##STR17## wherein R, A and X are as defined in claim 1, the sum of m 1 , m 2 and m 3 is 2 to 20, and the ratio of ethylene oxide to propylene oxide units is 1: (1 to 2).
Claim 13
Dependent Claim
23 words
A process according to claim 1, wherein the compounds of component (1) are in the form of alkali metal, ammonium or amine salts.
Claim 14
Dependent Claim
31 words
A process according to claim 1, wherein component (2) is an aliphatic, saturated or unsaturated, branched or straight-chain monoalcohol containing 8 to 18 carbon atoms or a mixture of such alcohols.
Claim 15
Dependent Claim
34 words
A process according to claim 1, wherein component (2) is a reaction product of ethylene oxide and/or 1,2-propylene oxide and aliphatic saturated or unsaturated, branched or straight-chain monoalcohols containing 8 to 18 carbon atoms.
Claim 16
Dependent Claim
45 words
A process according to claim 14, wherein component (2) is a compound of the formula R.sub.3 O--(CH.sub.2 CH.sub.2 O).sub.s --H wherein R 3 is a saturated or unsaturated hydrocarbon radical of 8 to 18 carbon atoms and s is an integer from 1 to 10.
Claim 17
Dependent Claim
45 words
A process according to claim 15, wherein component (2) is a compound of the formula R.sub.3 O--(CH.sub.2 CH.sub.2 O).sub.s --H wherein R 3 is a saturated or unsaturated hydrocarbon radical of 8 to 18 carbon atoms and s is an integer from 1 to 3.
Claim 18
Dependent Claim
31 words
A process according to claim 1, wherein component (2) is a reaction product of ethylene oxide and/or 1,2-propylene oxide and alkylphenols containing 4 to 12 carbon atoms in the alkyl moiety.
Claim 19
Dependent Claim
40 words
A process according to claim 17, wherein component (2) is a compound of the formula ##STR18## wherein R 1 is hydrogen or methyl, p is an integer from 4 to 12 and t is an integer from 1 to 30.
Claim 20
Dependent Claim
30 words
A process according to claim 1, wherein component (2) is a reaction product of a saturated dicarboxylic acid containing 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols.
Claim 21
Dependent Claim
25 words
A process according to claim 19, wherein component (2) is a reaction product of adipic acid or sebacic acid and 1,2-propylene oxide or polypropylene glycols.
Claim 22
Dependent Claim
29 words
A process according to claim 1, wherein component (2) is a reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols.
Claim 23
Dependent Claim
37 words
A process according to claim 1, wherein component (2) is a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol containing 3 to 6 carbon atoms and 1,2-propylene oxide.
Claim 24
Dependent Claim
47 words
A process according to claim 1, wherein component (2) is a reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine of the formula H.sub.2 N--(CH.sub.2 CH.sub.2 NH).sub.n --CH.sub.2 CH.sub.2 NH.sub.2 wherein n is 0 or 1, 2 or 3, and 1,2-propylene oxide.
Claim 25
Dependent Claim
23 words
A process according to claim 1, wherein component (3) is an alkylpolysiloxane with a viscosity of at least 0.7 centipoise at 25° C.
Claim 26
Dependent Claim
41 words
A process according to claim 1, wherein the aqueous systems from which foam is to be removed are dyebaths and finishing baths for treating textile materials, paper fibre suspensions in paper manufacture, paper coating compositions in paper finishing, paints, or effluents.
Claim 27
Dependent Claim
60 words
A process according to claim 1, wherein component (2) is a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, or a reaction product of alkylene oxides and an alkylphenol, and component (4) is water in an amount of 20 to 92 percent.
Claim 28
Dependent Claim
245 words
A wetting and antifoaming agent composition consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR19## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl ##STR20## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and an alkylphenol, a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol and 1,2-propylene oxide, or a reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine and 1,2-propylene oxide, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
Claim 29
Dependent Claim
245 words
A wetting and antifoaming agent composition consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR19## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl ##STR20## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and an alkylphenol, a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms and 1,2-propylene oxide or polypropylene glycols, a reaction product of a fatty acid containing 10 to 18 carbon atoms, a trihydric to hexahydric alcohol and 1,2-propylene oxide, or a reaction product of a fatty acid containing 10 to 18 carbon atoms, a polyalkylenepolyamine and 1,2-propylene oxide, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
Claim 30
Dependent Claim
165 words
A process for removing foam from aqueous systems which comprises incorporating into said aqueous system 0.001 to 20 grams per liter of a wetting and anti-foaming agent consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR21## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl, ##STR22## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of the reaction product of 8 moles of ethylene oxide and one mole of o-phenylphenol, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
Claim 31
Dependent Claim
165 words
A process for removing foam from aqueous systems which comprises incorporating into said aqueous system 0.001 to 20 grams per liter of a wetting and anti-foaming agent consisting essentially of (1) 2 to 50 percent by weight of an anionic surfactant having the formula ##STR21## wherein R is an aliphatic hydrocarbon radical of 8 to 22 carbon atoms or a cycloaliphatic or aliphatic-aromatic hydrocarbon radical of 10 to 22 carbon atoms, R 1 is hydrogen or methyl, ##STR22## X is the acid radical of an inorganic acid which contains oxygen or the radical of a carboxylic acid, or alkali metal, ammonium or amine salts thereof, and m is an integer from 1 to 20, (2) 6 to 50 percent by weight of the reaction product of 8 moles of ethylene oxide and one mole of o-phenylphenol, (3) 0.1 to 30 percent by weight of an organopolysiloxane silicone oil which is optionally terminally blocked with hydroxyl, and (4) 2 to 92 percent by weight of water.
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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) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |