GB634197A - Method of reducing the formation of foam in liquids and preparations therefor - Google Patents
Method of reducing the formation of foam in liquids and preparations thereforInfo
- Publication number
- GB634197A GB634197A GB8841/47A GB884147A GB634197A GB 634197 A GB634197 A GB 634197A GB 8841/47 A GB8841/47 A GB 8841/47A GB 884147 A GB884147 A GB 884147A GB 634197 A GB634197 A GB 634197A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- ethylene glycol
- foam
- liquids
- formation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/12—Defoamers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coloring (AREA)
Abstract
Foam-formation in aqueous liquids is reduced by incorporating therewith a mixture of a water-soluble organic solvent, other than an alkyl ether of ethylene glycol, and an alcohol or phenol containing at least one open chain of at least five carbon atoms and sparingly soluble in the aqueous liquid. Examples of these substances are, respectively, isopropyl alcohol, ethylene glycol, glycerol, diethylene glycol, triethylene glycol, thiodiglycol, acetone, and amyl alcohol, hexyl alcohol, octyl alcohol, 2-ethyl butanol, 2-ethyl hexanol, amyl phenols. The mixtures are suitable for reducing foam in viscose solutions, fermented liquids, gelatin solutions, liquors for treating textiles, dyebaths, printing pastes, and in the paper industry. The quantity of the mixture used may be, say, 0.01-0.5 per cent in the case of viscose solutions. The Specification as open to inspection under Sect. 91 refers also to the use of ethers of polyhydric alcohols, e.g. ethylene glycol monoether, as the water-soluble solvent. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH634197X | 1946-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB634197A true GB634197A (en) | 1950-03-15 |
Family
ID=4524987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8841/47A Expired GB634197A (en) | 1946-04-26 | 1947-04-01 | Method of reducing the formation of foam in liquids and preparations therefor |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR945560A (en) |
| GB (1) | GB634197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116529435A (en) * | 2020-10-26 | 2023-08-01 | 陶氏环球技术有限责任公司 | Paper and pulp foam control agent |
-
1947
- 1947-04-01 GB GB8841/47A patent/GB634197A/en not_active Expired
- 1947-04-22 FR FR945560D patent/FR945560A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116529435A (en) * | 2020-10-26 | 2023-08-01 | 陶氏环球技术有限责任公司 | Paper and pulp foam control agent |
Also Published As
| Publication number | Publication date |
|---|---|
| FR945560A (en) | 1949-05-09 |
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