US1905212A - Process of water-proofing materials with aqueous emulsions - Google Patents
Process of water-proofing materials with aqueous emulsions Download PDFInfo
- Publication number
- US1905212A US1905212A US446169A US44616930A US1905212A US 1905212 A US1905212 A US 1905212A US 446169 A US446169 A US 446169A US 44616930 A US44616930 A US 44616930A US 1905212 A US1905212 A US 1905212A
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- United States
- Prior art keywords
- emulsion
- water
- paper
- emulsions
- proofing
- 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
Links
- 239000000839 emulsion Substances 0.000 title description 74
- 239000000463 material Substances 0.000 title description 31
- 238000004078 waterproofing Methods 0.000 title description 29
- 238000000034 method Methods 0.000 title description 22
- 230000008569 process Effects 0.000 title description 22
- 239000000126 substance Substances 0.000 description 19
- 239000003795 chemical substances by application Substances 0.000 description 15
- 229920001131 Pulp (paper) Polymers 0.000 description 14
- 239000011435 rock Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- 239000003381 stabilizer Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 8
- 239000004753 textile Substances 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000008149 soap solution Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- DSEKYWAQQVUQTP-XEWMWGOFSA-N (2r,4r,4as,6as,6as,6br,8ar,12ar,14as,14bs)-2-hydroxy-4,4a,6a,6b,8a,11,11,14a-octamethyl-2,4,5,6,6a,7,8,9,10,12,12a,13,14,14b-tetradecahydro-1h-picen-3-one Chemical compound C([C@H]1[C@]2(C)CC[C@@]34C)C(C)(C)CC[C@]1(C)CC[C@]2(C)[C@H]4CC[C@@]1(C)[C@H]3C[C@@H](O)C(=O)[C@@H]1C DSEKYWAQQVUQTP-XEWMWGOFSA-N 0.000 description 1
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- -1 sucllg as sawdust Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/61—Bitumen
-
- 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
- Patented Apr. 25, 1933 ran stars PATENT orator.
- CARL ALFRED .BRAUN OF MUNICH, GERMANY, ASSIGNOR TO INTERNATIONAL BITUMEN EMULSIONS CORPORATION, OF SAN FRANCISCO, CALIFORNIA, A CORPORA- TION OF DELAWARE PROGESSOF WATERPROOFING MATERIALS WITH AQUEOUS EMULSIONS No Drawing. Application filed April 21, 1930, Serial No. 446,169, and in Germany April '7, 1928.
- the present invention relates to a process for water-proofing materials with aqueous emulsions.
- the process is particularly adapted for water-proofing fibrous material such as papers, pasteboards and textiles by impregnating the same with aqueous emulsions of water-proofing agents, such as oil, parafiin, ceresin, Montan wax, asphalt and similar substances.
- the invention is also adapted for water-proofing various inorganic and organic building and other materials, sucllg as sawdust, cork waste and crushed roc
- a finished paper or paper roll which must be of loose consistency and consequently possess the highest possible absorbability, is drawn through a liquid bath of the water-proofing agent, usually produced by melting the agent, after which the excess of the agent is removed from the paper or paper roll by suitable means.
- the water-proofing agent impregnates the textile material in a more or less superficial manner and particularly in the case of heavy papers and pasteboards, the deeper lying fibers obtain little or. none of the impregnating substance.
- these layers change the concentration of the emul- 0 sion used by water absorption so that the emulsified substances on the surface and on the other hand, the fine pores of the paper, pasteboard or textile rolls act as Antensin layer for the emulsion and do not let the emulsified particles through. Consequently, only a surface action can take place.
- Emulsions behave in similar manner when inorganic and organic substances, building materials, for example, fine or crushed rock, sand, cork or sawdust and the like, are mixed with them in, for example, a mixing drum.
- concentration and a change of the molecular electric equilibrium break at once when contacted with the aforesaid substances, the bituminous substances separate out in lumps and penetrate the whole mass irregularly without allowing the individual particles to obtain a uniform coating.
- present invention embodies the discovery.
- the material to be water-proofed or impregnated with an emulsion of a waterproofing agent is first treated with a substance which has a tendency to stabilize the emulsion which is to be applied, the emulsion may then be added and mixed with the material to be water-proofed and a uniform impregnation and covering of the substance is attained. It seems that the difiiculty in water-proofing or impregnating a material fibers with an emulsion is that the original stable emulsions undergo an excessive rapid decomposition when they are contacted with the substances to be admixed or coated.
- water-proof paper may be prepared by adding to paper pulp in a hollander, a certain percentage of a known stabilizer and after the pulp has been thoroughly admixed with the emulsion stabilizer, the emulsion is then added in the required quantity.
- the preabsorption by the paper pulp of the emulsion stabilizer permits the paper pulp to be thoroughly admixed and impre ated by the emulsion before the emulsion breaks.
- the emulsion breaks an exceedingly fine subdivision of emulsified material in the paper pulp is obtained.
- an electrolyte may be added in a small amount. This will cause the final breaking of the emulsion and insure that all of the emulsified substances will be retained by the paper pulp without loss.
- the process may be conducted in a similar manner when, for example, crushed rock or sand is to be mixed up with bituminous emulsions in order to give mineral substances, designed for construction purposes, very fine bituminous coating.
- a suitable emulsion stabilizer to the crushed rock or sand in a mixing drum.
- the mass is well mixed so that the material is as much as possible uniformly saturated with the emulsion stabilizer.
- the emulsion is then added in the proper concentration and quantity and thor oughly admixed with the crushed rock or sand.
- the building materials show an extremely fine bituminous film and eminently suited for road building and other purposes.
- the drying cylinder for the paper roll In forming the paper from the pulp thus produced, the drying cylinder for the paper roll must be maintained at a suflicient temperature so that the finished asphalt particles of the paper roll will melt. This results in completing the uniform waterproofing of the paper produced.
- Finely crushed rock is placed in a mixing drum and a corresponding amount of one percent soap solution is first added in order to completely moisten the rock. Any excess is let off and then a 30 to 35 percent asphaltic emulsion is added, the amount of which is so measured that it is just sufficient for a complete saturation and permeation of the rock mass.
- the added soap solution acts as an emulsion stabilizer tie emulsion breaking rapidly when it gets in contact with the rock particles.
- the rock particles are uniformly coated with the emulsion.
- the rock particles are taken out of the mixing drum and left for a few hours for the purpose of demulsification. In this process no formation of asphalt lumps occurs and the rock mass cannot shave off bituminous particles by reciprocal rubbing of the particles during their motion in the drum.
- a crushed rock mass is obtained which is completely coated with the finest possible biuminous film and well suited for road building purposes after the breaking of the emulsion. Any excess of emulsion may be drained from the crushed rock and without further treatment, may be used over again, silnce no separation of the' emulsion takes ace.
- a process of waterproofing materials with aqueous emulsion of waterproofing agents which comprises pretrea-ting the materials to be waterproofed with a solution of then mixing the materials with a quick-breaking aqueous emulsion of waterproofing agent substantially free from colloidal powders, and finally adding an electrolyte to break the emulsion.
- a with an waterproo treating the process of waterproofing material a ueous emulsion of a hydrocarbon g agent which comprises prematerial to be waterproofed with and prevents the asphalsuch modifications and changes as come witha solution of an emulsion stabilizer, and then mixing the material with a quick-breaking aqueous emulsion of a waterproofing agent substantially free of colloidal powders.
- a process of producing waterproof paper which comprises, adding to paper pulp in a hollander, a solution of an emulsion stabilizer, agitating the mixture and then adding to the mixture a quick-breaking aqueous emulsion of a hydrocarbon waterproofing agent substantially free from colloidal powders and colloidal clay, and passing the. paper roll thus formed through a drying zone wherein it is heated to a temperature sufficient to melt the particles of the waterproofing agent.
- a process of waterproofing material consisting of discrete particles, consisting of distributing a substance capable of stabilizing aqueous emulsions of waterproofing agents through the material to be waterproofed, and then mixing the material to be waterproofed and stabilizin substance carried thereby with a fluid quicdi-breaking type of aqueous emulsion of a waterproofing hydrocarbon substantially free from colloidal clay and colloidal powders, whereby said normally quick-breaking emulsion may be intimately distributed throughout the material to be waterproofed before said emulsion is broken and the waterproofing hydrocarbon deposited on the material.
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
Description
Patented Apr. 25, 1933 ran stars PATENT orator.
CARL ALFRED .BRAUN, OF MUNICH, GERMANY, ASSIGNOR TO INTERNATIONAL BITUMEN EMULSIONS CORPORATION, OF SAN FRANCISCO, CALIFORNIA, A CORPORA- TION OF DELAWARE PROGESSOF WATERPROOFING MATERIALS WITH AQUEOUS EMULSIONS No Drawing. Application filed April 21, 1930, Serial No. 446,169, and in Germany April '7, 1928.
The present invention relates to a process for water-proofing materials with aqueous emulsions. The process is particularly adapted for water-proofing fibrous material such as papers, pasteboards and textiles by impregnating the same with aqueous emulsions of water-proofing agents, such as oil, parafiin, ceresin, Montan wax, asphalt and similar substances. The invention is also adapted for water-proofing various inorganic and organic building and other materials, sucllg as sawdust, cork waste and crushed roc Heretofore it has been known to impreg nate paper, pasteboard and textiles with, for example, oils, paratfin waxes, tar and asphalt. For this purpose, for example, a finished paper or paper roll which must be of loose consistency and consequently possess the highest possible absorbability, is drawn through a liquid bath of the water-proofing agent, usually produced by melting the agent, after which the excess of the agent is removed from the paper or paper roll by suitable means.
It is also possible to coat such material with corresponding liquefied water repellant or' water-proofing substances. With such a process, the water-proofing agent impregnates the textile material in a more or less superficial manner and particularly in the case of heavy papers and pasteboards, the deeper lying fibers obtain little or. none of the impregnating substance.
Attempts have been made to utilize emulsions of water-proofing materials for the purpose of impregnating textiles to form water-proof -materials. When it is attempted to impregnate paper, pasteboard and textile rolls with emulsions, it is at once found that this is not possible because the emulsion possesses a very low degree of penetratability. The emulsion, when contacte-d with the paper, pasteboard or textile, separates and for example, asphalt, tar or wax particles are deposited on the surface only of the material, while the deeper layers see only the aqueous phase. Moreover, these layers change the concentration of the emul- 0 sion used by water absorption so that the emulsified substances on the surface and on the other hand, the fine pores of the paper, pasteboard or textile rolls act as afine filter layer for the emulsion and do not let the emulsified particles through. Consequently, only a surface action can take place.
If an attempt is made to treat, for example, paper pulp with an emulsion of a waterproofing agent in a hollander and then work up the mass in a paper machine, the emulsion at once decomposes and separates into the component parts. Separation does not in this instance, take place in a finely distributed iform, but there is a formation of lumps of the emulsified substances which become more "and more agglomerated and penetrate the paper pulp irregularly. There is thus produced partially an agglomeration of water-proofing material in the paper pul and partially an absolute lack of, emulslfi substances in other parts of the paper pulp.
Emulsions behave in similar manner when inorganic and organic substances, building materials, for example, fine or crushed rock, sand, cork or sawdust and the like, are mixed with them in, for example, a mixing drum. By a change of concentration and a change of the molecular electric equilibrium these emulsions break at once when contacted with the aforesaid substances, the bituminous substances separate out in lumps and penetrate the whole mass irregularly without allowing the individual particles to obtain a uniform coating.
In consideration of these facts, s ecial socalled non-adhesive emulsions have een prepared by means of colloidal powders, for
example clay, and these emulsions have been" used for water-proofing various materlalsi Emulsions prepared with colloidal powders form a more or less thick paste and contain varying amounts of very finely d1- vided insoluble substances together with the.
such as textile fibers or paper penetrate the whole mass and accordingly the water repellant properties of the same are not eatly improved.
I ave discovered a process for waten proofing and impregnating materials with emulsions in which it is unnecessary to use colloidal powders and in which a complete uniform impregnation covering of the material to be water-proofed may be attained without the formation of agglomerates. In my process I prefer to use a so-called quickbreaking emulsion such as may be prepared by the process described in my United States Patent #1,737,491 or in John Alexander Montgomeries Patent #1,643,67 5 in which no emulsifiers other than alkaline water are employed in the manufacture. Emulsions of this type, when mixed with untreated fibrous materials or aggregates, tend to break rapidly and form agglomerated masses without properly coating the substances with which they are mixed. Generally speaking, the
present invention embodies the discovery.
that if the material to be water-proofed or impregnated with an emulsion of a waterproofing agent, is first treated with a substance which has a tendency to stabilize the emulsion which is to be applied, the emulsion may then be added and mixed with the material to be water-proofed and a uniform impregnation and covering of the substance is attained. It seems that the difiiculty in water-proofing or impregnating a material fibers with an emulsion is that the original stable emulsions undergo an excessive rapid decomposition when they are contacted with the substances to be admixed or coated.
If these substances are pretreated with a solution of an emulsion stabilizer, this breaking of the emulsion only takes place after comparatively long contact and permits thorough admixing and absorption of the emulsion with and by the material to be treated so that when the emulsion does break, it is intimately distributed. Of emulsion stabilizers useable in the process, there are a great number and the following are listed as examples: Resin size, soap water glass, alkaline starch, small amounts of caustic alkalies or alkali carbonates and the like.
Thus, for example, water-proof paper may be prepared by adding to paper pulp in a hollander, a certain percentage of a known stabilizer and after the pulp has been thoroughly admixed with the emulsion stabilizer, the emulsion is then added in the required quantity. The preabsorption by the paper pulp of the emulsion stabilizer permits the paper pulp to be thoroughly admixed and impre ated by the emulsion before the emulsion breaks. When the emulsion breaks an exceedingly fine subdivision of emulsified material in the paper pulp is obtained. In certain cases, it may be desirable after the emulsion has been thoroughly admixed with the paper pulp in the hollander, to accelerate the breaking of the emulsion. For this purpose, for example, an electrolyte may be added in a small amount. This will cause the final breaking of the emulsion and insure that all of the emulsified substances will be retained by the paper pulp without loss.
The process may be conducted in a similar manner when, for example, crushed rock or sand is to be mixed up with bituminous emulsions in order to give mineral substances, designed for construction purposes, very fine bituminous coating. In such a case, there is first added a small amount of a suitable emulsion stabilizer to the crushed rock or sand in a mixing drum. The mass is well mixed so that the material is as much as possible uniformly saturated with the emulsion stabilizer. The emulsion is then added in the proper concentration and quantity and thor oughly admixed with the crushed rock or sand. In this manner it is possible to coat the organic or inorganic materials with emulsions without the formation of lumps. After the emulsion demulsifies, the building materials show an extremely fine bituminous film and eminently suited for road building and other purposes.
For the purpose of illustrating the preferred form of the invention, the following examples of processes utilizing this invention are given.
In preparing water-proof paper-or similar products, I prefer to proceed as follows:
Three kilograms of ordinary 75 percent resin size are introduced into a hollander with 300 kilograms of paper pulp calculated as dry material but in the usual density. The whole mass is intimately mixed so that the paper pulp becomes impregnated with the resin size or emulsion stabilizer. There is then added 600 liters of 50 percent asphaltic emulsion. The emulsion is added gradually while the mass is agitated and the hollander kept in motion until a breaking of the emulsion has begun and the asphalt particles have been distributed in the most intimate manner throughout the whole mass of the material.
Approximately 1.5 kilograms of aluminum sulphate dissolved in 300 liters of water, are finally added to serve as an electrolyte for securing the completebreaking of the emulsion. .The apparatus is left in motion for still some time and then the thus prepared paper pulp can then be worked up in the usual manner in a paper machine. The waste waters drained off from the hollander will be found to be absolutely clear, all of the water-proofing agent of the emulsion having been absorbed by the paper pulp. Moreover, the sieves and felts are not smeary or tacky and the paper roll may be passed emulsion stabilizer,
over the drying cylinders without sticking thereto.
In forming the paper from the pulp thus produced, the drying cylinder for the paper roll must be maintained at a suflicient temperature so that the finished asphalt particles of the paper roll will melt. This results in completing the uniform waterproofing of the paper produced.
hen I am using the process for producing water-proofed building materials, I proceed as follows:
, Finely crushed rock is placed in a mixing drum and a corresponding amount of one percent soap solution is first added in order to completely moisten the rock. Any excess is let off and then a 30 to 35 percent asphaltic emulsion is added, the amount of which is so measured that it is just sufficient for a complete saturation and permeation of the rock mass. The added soap solution acts as an emulsion stabilizer tie emulsion breaking rapidly when it gets in contact with the rock particles. As a result of the process, the rock particles are uniformly coated with the emulsion. After suflicient mixing, the rock particles are taken out of the mixing drum and left for a few hours for the purpose of demulsification. In this process no formation of asphalt lumps occurs and the rock mass cannot shave off bituminous particles by reciprocal rubbing of the particles during their motion in the drum. V
A crushed rock mass is obtained which is completely coated with the finest possible biuminous film and well suited for road building purposes after the breaking of the emulsion. Any excess of emulsion may be drained from the crushed rock and without further treatment, may be used over again, silnce no separation of the' emulsion takes ace.
p While the process herein described is well adapted for carrying outithe objects of the present invention, various modifications and changes may be made in the process Without departing from the process of the present invention and the present invention includes all in the scope of the appended claims.
I claim:
1. A process of waterproofing materials with aqueous emulsion of waterproofing agents which comprises pretrea-ting the materials to be waterproofed with a solution of then mixing the materials with a quick-breaking aqueous emulsion of waterproofing agent substantially free from colloidal powders, and finally adding an electrolyte to break the emulsion.
2. A with an waterproo treating the process of waterproofing material a ueous emulsion of a hydrocarbon g agent which comprises prematerial to be waterproofed with and prevents the asphalsuch modifications and changes as come witha solution of an emulsion stabilizer, and then mixing the material with a quick-breaking aqueous emulsion of a waterproofing agent substantially free of colloidal powders.
3. A process of producing waterproof paper which comprises, adding to paper pulp in a hollander, a solution of an emulsion stabilizer, agitating the mixture and then adding to the mixture a quick-breaking aqueous emulsion of a hydrocarbon waterproofing agent substantially free from colloidal powders and colloidal clay, and passing the. paper roll thus formed through a drying zone wherein it is heated to a temperature sufficient to melt the particles of the waterproofing agent.
4. A process of waterproofing material consisting of discrete particles, consisting of distributing a substance capable of stabilizing aqueous emulsions of waterproofing agents through the material to be waterproofed, and then mixing the material to be waterproofed and stabilizin substance carried thereby with a fluid quicdi-breaking type of aqueous emulsion of a waterproofing hydrocarbon substantially free from colloidal clay and colloidal powders, whereby said normally quick-breaking emulsion may be intimately distributed throughout the material to be waterproofed before said emulsion is broken and the waterproofing hydrocarbon deposited on the material.
In testimony whereof I have signed my name to this specification thls elg'hth day of March, 1930. p
' CARL ALFRED BRAUN.
DESGLAIIM EH "'1, 90 5,212. -'0afliAlfredBmun, MunichfiGermanyr PROCESS OF WATERPROOFING 7 MATERIALS WITH AQUEOUS EMULSIONS. =Patent dated Apnl 25,"1933.-
' Disclaimer filed September 20','1935,'by'the'assignee, InternationaLB'itumen- I I Emulsions Corporation. H
'Hereby disclaims claim-2of said patent, exce 1:. when the 'quicbbrenking aqueous emulsion employedin said process'issubstantia, y free fromfatty acids orsaponifi- I cation products thereof.
[Cfic'ial Gazetta October 15', 1935 .1
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1905212X | 1928-04-07 |
Publications (1)
Publication Number | Publication Date |
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US1905212A true US1905212A (en) | 1933-04-25 |
Family
ID=7748619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US446169A Expired - Lifetime US1905212A (en) | 1928-04-07 | 1930-04-21 | Process of water-proofing materials with aqueous emulsions |
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Country | Link |
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US (1) | US1905212A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE880544C (en) * | 1937-04-27 | 1953-06-22 | Shell Ag | Process for gluing paper and cardboard |
US20080249194A1 (en) * | 2007-04-04 | 2008-10-09 | Corporation De L'ecole Polytechnique De Montreal | Stable emulsion and process of preparation thereof |
-
1930
- 1930-04-21 US US446169A patent/US1905212A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE880544C (en) * | 1937-04-27 | 1953-06-22 | Shell Ag | Process for gluing paper and cardboard |
US20080249194A1 (en) * | 2007-04-04 | 2008-10-09 | Corporation De L'ecole Polytechnique De Montreal | Stable emulsion and process of preparation thereof |
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