US1957514A - Defoamed product - Google Patents

Defoamed product Download PDF

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Publication number
US1957514A
US1957514A US678197A US67819733A US1957514A US 1957514 A US1957514 A US 1957514A US 678197 A US678197 A US 678197A US 67819733 A US67819733 A US 67819733A US 1957514 A US1957514 A US 1957514A
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US
United States
Prior art keywords
defoamed
mixture
glue
water
dispersed
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 - Lifetime
Application number
US678197A
Inventor
Wolfson Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Oil Products Co
Original Assignee
National Oil Products Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US313375A external-priority patent/US1957513A/en
Application filed by National Oil Products Co filed Critical National Oil Products Co
Priority to US678197A priority Critical patent/US1957514A/en
Application granted granted Critical
Publication of US1957514A publication Critical patent/US1957514A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • D21H17/09—Sulfur-containing 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
    • D21H17/60—Waxes

Definitions

  • My invention relates to defoamed products produced from those compounds and mixtures which have a tendency to foam, especially when their solution is attempted with the assistance of heat.
  • a dispersion of such water-insoluble metallic soap can be best prepared by first dissolving the metallic soap in an 0 organic solvent, among which are paraffin, wax,
  • My defoaming agent does not separate from the glue as do other suggested defoamers, such as the insoluble greases.
  • I allow a small stream of a 5% dispersion of the defoaming agent to run into the heaters connected with the paper machine. The addition of the defoaming at this point reduces the foaming in the washers at the point where the pulp is run onto the screen.
  • dispersed insoluble metallic soaps I mean the dispersed insoluble metallic soaps of fatty acids, but I prefer to employ the higher melting point fatty acids, as stearic acid and palmitic acid.
  • water-insoluble metallic soaps which I may employ in my process are aluminum stearate, magnesium stearate, calcium stearate,
  • a defoamed product consisting of a mixture of a foamable substance, a dispersed water-insoluble metallic soap and a sulphonated organic dispersing agent.
  • a defoamed product consisting of a mixture 1 of a foamable substance, a dispersed aluminum stearate and a sulphonated organic dispersing agent.
  • a defoamed product consisting of a mixture of a foamable substance, a dispersed aluminum stearate and a sulphonated tallow.
  • a defoamed product consisting of a mixture of glue, a dispersed water-insoluble metallic soap and a sulphonated organic dispersing agent.
  • a defoamed product consisting of a mixture of glue, a dispersed aluminum stearate and a sulphonated organic dispersing agent.
  • a defoamed product consisting of a mixture of glue, a dispersed aluminum stearate and sulphonated tallow.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Description

atente DEFOAMED PRODUCT Jacob Wolfson, Irvington, N. a, asslgnor to National Oil Products Company, Harrison, N. J., a corporation of New Jersey No Drawing. Original application October 18,
1928, Serial No. 313,375. Divided and this application June 29, 1933, Serial No. 678,197
6 Claims. ((31. 87-7) My invention relates to defoamed products produced from those compounds and mixtures which have a tendency to foam, especially when their solution is attempted with the assistance of heat.
This application is.a divisional application of my United States patent application, Serial Number 313,375, filed October 18, 1928.
There are many compounds which have the undesirable property of foaming when heated w alone or when heated in the presence of substances intended to maintain them in solution or dispersion.
I have found that when water insoluble metallic soaps are suitably dispersed in water, such dispersions will defoam these foamable compounds or mixtures.
I have further found that a dispersion of such water-insoluble metallic soap can be best prepared by first dissolving the metallic soap in an 0 organic solvent, among which are paraffin, wax,
fatty acids, pine oil and kerosene, and then dispersing the solution in water with a suitable dis- Determine the amount of dry glue in a glue solution to be treated, and add to said glue solution an amount of the defoaming agent equal to two per cent of the amount of dry glue. This mixture should be made at a temperature of 60? C.,
and when thoroughly mixed, cooled and dried.
My defoaming agent does not separate from the glue as do other suggested defoamers, such as the insoluble greases.
The process of my invention is not limited in its application to glue and similar substances,
but can be employed with valuable advantages for the defoaming of other substances, for example paper coating compounds.
In employing my defoaming agent to papermaking compounds, I allow a small stream of a 5% dispersion of the defoaming agent to run into the heaters connected with the paper machine. The addition of the defoaming at this point reduces the foaming in the washers at the point where the pulp is run onto the screen.
In employing my defoaming agent to paper coating mixtures, I add 1% of the defoaming agent based on the weight of the paper coating mixture to the latter. I prefer to disperse the defoaming agent in a small quantity of water 1 before adding it to the paper coating mixture,
By dispersed insoluble metallic soaps I mean the dispersed insoluble metallic soaps of fatty acids, but I prefer to employ the higher melting point fatty acids, as stearic acid and palmitic acid.
Among the water-insoluble metallic soaps which I may employ in my process are aluminum stearate, magnesium stearate, calcium stearate,
zinc stearate, manganese stearate and the correg spending palmitates, but I do not limit myself to these particular compounds.
In my specification and claims I do not limit myself to a single organic solvent, dispersing agent or water-insoluble metallic soap, as more than one of the members of these several groups of chemicals can be employed and I refer to them singly only for ease of expression, my invention covering them above and in combination.
I do not limit myself to the particular quan- 5 titles, times, temperatures, chemicals or steps of procedure particularly mentioned and described, as these are given simply as a means for clearly describing the process of my invention.
What I claim is:-
1. A defoamed product consisting of a mixture of a foamable substance, a dispersed water-insoluble metallic soap and a sulphonated organic dispersing agent.
2. A defoamed product consisting of a mixture 1 of a foamable substance, a dispersed aluminum stearate and a sulphonated organic dispersing agent.
3. A defoamed product consisting of a mixture of a foamable substance, a dispersed aluminum stearate and a sulphonated tallow.
4. A defoamed product consisting of a mixture of glue, a dispersed water-insoluble metallic soap and a sulphonated organic dispersing agent.
5. A defoamed product consisting of a mixture of glue, a dispersed aluminum stearate and a sulphonated organic dispersing agent.
6. A defoamed product consisting of a mixture of glue, a dispersed aluminum stearate and sulphonated tallow.
JACOB WOLFSON.
US678197A 1928-10-18 1933-06-29 Defoamed product Expired - Lifetime US1957514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US678197A US1957514A (en) 1928-10-18 1933-06-29 Defoamed product

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US313375A US1957513A (en) 1928-10-18 1928-10-18 Means and method of defoaming
US678197A US1957514A (en) 1928-10-18 1933-06-29 Defoamed product

Publications (1)

Publication Number Publication Date
US1957514A true US1957514A (en) 1934-05-08

Family

ID=26978829

Family Applications (1)

Application Number Title Priority Date Filing Date
US678197A Expired - Lifetime US1957514A (en) 1928-10-18 1933-06-29 Defoamed product

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Country Link
US (1) US1957514A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524309A (en) * 1947-11-12 1950-10-03 American Marietta Co Antifoamers for proteinaceous solutions
US2929716A (en) * 1957-02-25 1960-03-22 Standard Brands Inc Instant coffee
US3492242A (en) * 1966-11-30 1970-01-27 Dixie Chem Products Co Chemical defoaming composition
US20180021698A1 (en) * 2015-02-18 2018-01-25 State Line Holdings, LLC Emulsion foam reducer for wet processing of cellulose or woodbased products or in food processing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524309A (en) * 1947-11-12 1950-10-03 American Marietta Co Antifoamers for proteinaceous solutions
US2929716A (en) * 1957-02-25 1960-03-22 Standard Brands Inc Instant coffee
US3492242A (en) * 1966-11-30 1970-01-27 Dixie Chem Products Co Chemical defoaming composition
US20180021698A1 (en) * 2015-02-18 2018-01-25 State Line Holdings, LLC Emulsion foam reducer for wet processing of cellulose or woodbased products or in food processing
US10933352B2 (en) * 2015-02-18 2021-03-02 State Line Holdings, LLC. Emulsion foam reducer for wet processing of cellulose or woodbased products or in food processing
US20210162322A1 (en) * 2015-02-18 2021-06-03 State Line Holdings, LLC Emulsion foam reducer for wet processing of cellulose or wood-based products or in food processing

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