DE19617568C1 - Water-repellent dispersion aid inhibiting agglomeration, useful in wide range of dispersions - Google Patents
Water-repellent dispersion aid inhibiting agglomeration, useful in wide range of dispersionsInfo
- Publication number
- DE19617568C1 DE19617568C1 DE19617568A DE19617568A DE19617568C1 DE 19617568 C1 DE19617568 C1 DE 19617568C1 DE 19617568 A DE19617568 A DE 19617568A DE 19617568 A DE19617568 A DE 19617568A DE 19617568 C1 DE19617568 C1 DE 19617568C1
- Authority
- DE
- Germany
- Prior art keywords
- dispersing aid
- cellulose
- aid according
- substance
- cellulose fibers
- 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
- 239000006185 dispersion Substances 0.000 title claims abstract description 13
- 239000005871 repellent Substances 0.000 title description 2
- 238000005054 agglomeration Methods 0.000 title 1
- 230000002776 aggregation Effects 0.000 title 1
- 230000002401 inhibitory effect Effects 0.000 title 1
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 16
- 230000002744 anti-aggregatory effect Effects 0.000 claims abstract description 3
- 230000002209 hydrophobic effect Effects 0.000 claims abstract 2
- 229920002678 cellulose Polymers 0.000 claims description 21
- 239000001913 cellulose Substances 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- NYYDZOSYLUOKEM-UHFFFAOYSA-N oxaldehyde;hydrate Chemical compound O.O=CC=O NYYDZOSYLUOKEM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 239000003658 microfiber Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005029 sieve analysis Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 229940015043 glyoxal Drugs 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229940109275 cyclamate Drugs 0.000 description 1
- HCAJEUSONLESMK-UHFFFAOYSA-N cyclohexylsulfamic acid Chemical compound OS(=O)(=O)NC1CCCCC1 HCAJEUSONLESMK-UHFFFAOYSA-N 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 239000001087 glyceryl triacetate Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- 239000000243 solution Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
Abstract
Description
Die Erfindung bezieht sich auf ein Dispergierhilfs mittel der dem Oberbegriff des Anspruchs 1 entsprechenden Art sowie die Verwendung in bestimmter Weise behandelter Cellulosefasern als derartiges Dispergierhilfsmittel.The invention relates to a dispersion auxiliary means corresponding to the preamble of claim 1 Kind as well as the use in a certain way treated Cellulose fibers as such dispersing aid.
Der Ausdruck "Dispergierhilfsmittel" ist hier in dem Sinne zu verstehen, daß es sich dabei selbst um eine dis perse Phase handelt, deren Anwesenheit in der Dispersion deren Herstellung und deren Stabilität gegen Absetzen verbessert. Das Dispergierhilfsmittel soll also die chemi sche und/oder physikalische Wirkung der Dispersion nicht stören und die eigentlich charakteristischen dispersen Bestandteile der Dispersion leichter in eine homogene Verteilung zu bringen helfen und diese Verteilung aufrech terhalten.The term "dispersing aid" is here in the Meaning that it is itself a dis perse phase, their presence in the dispersion their preparation and their stability against settling improved. The dispersing aid should therefore chemi and / or physical effect of the dispersion is not disturb and the actually characteristic disperse Ingredients of the dispersion easier in a homogeneous Help bring distribution and offset this distribution terhalten.
Der Ausdruck "Dispergierhilfsmittel" wird also hier in einem etwas anderen Sinne gebraucht wie in Römpps Che mie-Lexikon, 8. Auflage, Seite 986, wo es sich um chemi sche Mittel handelt, die die Grenzflächenspannung zwischen dem Dispersionsmittel, also der "Matrix", und der disper sen Faser verringern.The term "dispersing aid" is thus here used in a slightly different sense as in Römpps Che Lexicon, 8th edition, page 986, where it is chemi is the agent that controls the interfacial tension between the dispersant, so the "matrix", and the disper reduce fiber.
Die Erfindung geht von der Aufgabe aus, ein wirt schaftlich bereitstellbares Dispergierhilfsmittel zu schaffen, welches für eine Vielzahl von technischen Dis persionen einsetzbar ist.The invention is based on the task, a Wirt economically dispersible dispersible create, which for a variety of technical dis can be used.
Die Lösung dieser Aufgabe ist in Anspruch 1 wiederge geben.The solution to this problem is in claim 1 wiederge give.
Überraschenderweise hat sich herausgestellt, daß Cellulosefasern bei geeigneter Behandlung, die ihnen so wohl gegenüber dem Dispersionsmittel, also z. B. dem Wasser als auch gegenüber anderen ebenso behandelten Cellulosefa sern ein abweisendes Verhalten verleiht, in der Lage ist, als ein solches Dispergierhilfsmittel zu wirken, dessen Funktion dadurch erklärt werden kann, daß es sich selbst und die übrigen dispersen Phasen in der Dispersion "auf Abstand" bringt und hält. Die Bildung von Agglomeraten wird durch die Behandlung sowohl zwischen den Cellulosefa sern des Dispergierhilfsmittels als auch zwischen den Partikeln der eigentlich zu dispergierenden Phase als auch zwischen beiden verhindert.Surprisingly, it has been found that Cellulose fibers with appropriate treatment, so they probably compared to the dispersant, ie z. B. the water as well as other similarly treated cellulose fa which gives them a repellent attitude, is able to to act as such a dispersing aid, the Function can be explained by the fact that it is itself and the remaining disperse phases in the dispersion Distance "brings and holds. The formation of agglomerates is treated by treatment both between the cellulose fa fibers of the dispersing agent as well as between the Particles of the actually to be dispersed phase as well between the two prevented.
Der "Stoff", mit welchem die Cellulosefasern behan delt werden sollen, kann ein einheitlicher Stoff sein, kann aber ebenso aus mehreren Wirkungskomponenten beste hen.The "substance" with which the cellulose fibers behan may be a single substance, but can also be best from several components of action hen.
Eine in Betracht kommende Behandlung der Cellulosefa sern ist gemäß Anspruch 2 eine Beschichtung derselben, bei der der Stoff sich im wesentlichen an der Oberfläche der Fasern befindet. Die Beschichtung kann nach oder bei der Mahlung vorgenommen werden.A contemplated treatment of cellulose fa According to claim 2 is a coating of the same, at the substance is essentially at the surface of the Fibers is located. The coating can be after or at the Grinding be made.
Die in Anspruch 3 angegebenen Abmessungen der Cellu losefasern haben sich als besonders geeignet erwiesen.The dimensions of Cellu given in claim 3 Loose fibers have proven to be particularly suitable.
Im einzelnen kann es sich um eine in Anspruch 4 cha rakterisierte Größenverteilung handeln.Specifically, it may be a cha in claim 4 act a size distribution.
Um Störungen der herzustellenden Dispersion durch Begleitstoffe der Cellulosefasern zu minimieren, empfiehlt sich die Verwendung von hochreinen weißen Cellulosefasern (Anspruch 5).To disorders of the dispersion to be prepared by It is recommended to minimize accompanying substances of the cellulose fibers the use of high purity white cellulose fibers (Claim 5).
Der Stoff, mit welchem die Cellulosefasern behandelt werden, um ihre Eignung als Dispergierhilfsmittel herbei zuführen, kann einen die Wasserstoffbrücken der Cellulose abbindenden Stoff umfassen (Anspruch 6).The substance with which the cellulose fibers are treated to their suitability as a dispersing aid can supply one, the hydrogen bonds of the cellulose setting material comprise (claim 6).
Als ein solcher Stoff kommt z. B. Glyoxalhydrat in Betracht (Anspruch 7).As such a substance comes z. B. Glyoxalhydrat in View (claim 7).
Glyoxal in wäßriger Lösung setzt die Wasserempfind lichkeit von Cellulose wesentlich herab, wie es sich aus "Ullmanns Encyklopädie der technischen Chemie" dritte Auflage (1957), Band 8, Seite 251, Stichwort "Glyoxal/Ver wendung" ergibt.Glyoxal in aqueous solution sets the water sensitivity cellulose, as it turned out "Ullmann's Encyclopedia of Industrial Chemistry" third Edition (1957), Volume 8, page 251, keyword "Glyoxal / Ver "results.
Das Glyoxalhydrat kann in einem Gewichtsanteil von 2 bis 3% des Cellulosegewichts zugegen sein.The Glyoxalhydrat can in a weight portion of 2 to 3% of the cellulose weight.
Die Wirkung des Dispergierhilfsmittels wird gestei gert, wenn der "Stoff" zwei Komponenten aufweist und zu sätzlich ein Tensid umfaßt (Anspruch 9) als welches ins besondere Alkylpolyethylenglykolether in Betracht kommt (Anspruch 10), der in einem Gewichtsanteil von 0,5 bis 1,0% des Cellulosegewichts zugegen sein kann.The effect of the dispersing aid is gestei gert, if the "substance" has two components and to additionally comprises a surfactant (claim 9) as which ins special alkyl polyethylene glycol ethers come into consideration (Claim 10), which in a weight fraction of 0.5 to 1.0% of the cellulose weight can be present.
Ein spezielles, als Dispergierhilfsmittel besonders geeignetes Produkt umfaßt als Ausgangsrohstoff eine hoch reine weiße Alpha-Cellulose Mikrofaser mit folgenden Kenn werten:A special, as a dispersing aid especially suitable product comprises as starting material a high pure white alpha-cellulose microfiber with the following characteristics cost:
Cellulosegehalt: ca. 95%,
durchschnittliche Faserlänge: 40 µm,
durchschnittliche Faserdicke: 20 µm,
Schüttgewicht: 190 g/l-260 g/l,
Weiße (Absolutwert bei 461 nm): 84% ± 5%,
Glührückstand (850°C, 4 h): ca. 1,5 ± 0,5%,
pH-Wert: 6,5 ± 1,5.Cellulose content: approx. 95%,
average fiber length: 40 μm,
average fiber thickness: 20 μm,
Bulk density: 190 g / l-260 g / l,
White (absolute value at 461 nm): 84% ± 5%,
Residual residue (850 ° C, 4 h): approx. 1.5 ± 0.5%,
pH value: 6.5 ± 1.5.
970 g dieser Cellulose werden mit 22,5 g Glyoxalhydrat und 7,5 g Alkylpolyethylenglykolether beschichtet.970 g of this cellulose are mixed with 22.5 g of glyoxal hydrate and 7.5 g of alkyl polyethylene glycol ether coated.
Die Erfindung verkörpert sich gemäß Anspruch 13 auch in der Verwendung von feingemahlenen Cellulosefasern als Dispergierhilfsmittel, die nach der Mahlung mit einem Stoff behandelt sind, die den Cellulosefasern ein hydro phobes und aggregationsfeindliches Verhalten verleihen. The invention also embodies itself according to claim 13 in the use of finely ground cellulose fibers as Dispersing aids which after grinding with a Treated to give the cellulose fibers a hydro give phobes and anti-aggregation behavior.
Nachfolgend werden einige Arbeitsbeispiele unter Verwendung des erfindungsgemäßen Dispergierhilfsmittels wiedergegeben. Dieses Dispergierhilfsmittel hat die in Anspruch 11 wiedergegebenen Eigenschaften und ist gemeint, wenn in den Arbeitsbeispielen von "behandelte Cellulose" die Rede ist. Die Anteile sind in Gewichtsprozenten ange geben.Below are some working examples below Use of the dispersing assistant according to the invention played. This dispersing aid has the in Claim 11 reproduced properties and is meant when in the working examples of "treated cellulose" the speech is. The proportions are in weight percent give.
Zur Herstellung einer Zahncreme wird von folgender Richtrezeptur ausgegangen:To make a toothpaste is made by the following Guideline recipe assumed:
Die Cellulose wird vorgelegt und unter ständigem Rühren zunächst Wasser, dann Triacetin, Cyclamat und an schließend Xanthan hinzugegeben. Dieser Ansatz wird minde stens zwei Stunden quellengelassen und dabei gelegentlich umgerührt. Danach werden Oleum Menthae, Farbstoffe und Konservierungsmittel untergemengt. Zuletzt werden Stearat, Laurylsulfat und Aluminiumhydroxid hinzugegeben und der Ansatz unter ständigem Rühren evakuiert.The cellulose is submitted and under constant First stir water, then triacetin, cyclamate and on Finally added xanthan gum. This approach will be taken at least two hours and occasionally stirred. Thereafter, Oleum Menthae, dyes and Preservative mashed. Last will be stearate, Lauryl sulfate and aluminum hydroxide added and the Evacuated with constant stirring.
Zur Herstellung von rutilgefüllten Schweißelektroden wird von folgender Richtrezeptur ausgegangen:For the production of rutile-filled welding electrodes is based on the following guideline:
Die Komponenten werden miteinander vermischt und als Umhüllung auf den eigentlichen Schweißdraht aufgetragen. Der Durchmesser des Schweißdrahtes beträgt 3,2 mm und der Gesamtdurchmesser mit der aufgetragenen Umhüllung 4,6 mm. Die Beschichtung wird bei 110°C eine Stunde getrocknet.The components are mixed together and called Cover applied to the actual welding wire. The diameter of the welding wire is 3.2 mm and the Overall diameter with the applied coating 4.6 mm. The coating is dried at 110 ° C for one hour.
Zur Herstellung eines glatten Schuhobermaterials aus Polyurethan im Penetrationsverfahren unter Koagulation wird von folgender Richtrezeptur ausgegangen:To make a smooth shoe upper Polyurethane in the penetration process with coagulation is based on the following guideline:
Additive wie Entschäumer können die Ergebnisse der Koagulation sehr stark beeinflussen bzw. verbessern.Additives such as defoamers can reduce the results of Very strongly influence or improve coagulation.
Zur Herstellung kohlefreier bzw. chemisch reagieren der Durchschreibepapiere wird von folgender Richtrezeptur ausgegangen:To produce carbon-free or chemically react The copying paper is from the following guideline went out:
70,2% Melaminfarbstoffkapseln
21,0% behandelte Cellulose
8,8% Bindemittel70.2% melamine dye capsules
21.0% treated cellulose
8.8% binder
Es wird Wasser vorgelegt, dann erfolgt das Einmischen der behandelten Cellulose. Anschließend werden die Mela minfarbstoffkapseln und das Bindemittel zugegeben.It is submitted to water, then it is mixed the treated cellulose. Then the mela minfarbstoffkapuls and the binder added.
Die Wirkung der behandelten Cellulose kommt darin zum Ausdruck, daß die Herstellung einer agglomeratfreien Dis persion in Gegenwart diesen Dispergierhilfsmitteln wesent lich schneller und mit deutlich geringerem Energieeintrag durch Rühren oder Homogenisieren vonstatten geht als ohne das Dispergierhilfsmittel. Manche Dispersionen lassen sich überhaupt nur unter Zuhilfenahme des Dispergierhilfs mittels "klümpchenfrei" herstellen. Vergleichsversuche mit unbehandelter Cellulose haben keine nennenswerte Wirkung ergeben, so daß es also auf die Behandlung der Cellulose ankommt. The effect of the treated cellulose is in it Expression that the preparation of an agglomerate-free Dis persion in the presence of these dispersants essential faster and with significantly lower energy input by stirring or homogenizing as without the dispersing aid. Leave some dispersions in general only with the aid of the dispersion aid by means of "lump-free" produce. Comparative experiments with untreated cellulose have no appreciable effect so it so on the treatment of cellulose arrives.
Weitere Beispiele, bei denen die Erfindung Anwendung finden kann, sind Trockenmischungen für Putze (Bauwesen), magnesitgebundene Fußböden, Toilettenseifen, Leime und Klebstoffe.Further examples in which the invention is applied are dry mixes for plasters (construction), magnesite-bound floors, toilet soaps, and glues Adhesives.
Claims (13)
durchschnittliche Faserlänge: 40 µm
durchschnittliche Faserdicke: 20 µm
Schüttgewicht: 190 g/l-260 g/l
Weiße (Absolutwert bei 461 nm): 84% ± 5%
Glührückstand (850°C, 4 h): ca. 1,5 ± 0,5%
pH-Wert: 6,5 ± 1,5mit folgender Siebanalyse
Siebrückstand (in Anlehnung an DIN 53 734/Luftstrahl sieb) bei einer lichten Maschenweite von eingesetzt wird, wobei
970 g dieses Ausgangsmaterials
mit
22,5 g Glyoxalhydrat
und
7,5 g Alkylpolyethylenglykolether
behandelt werden.12. dispersing aid according to one of claims 1 to 11, characterized in that the starting material is a high-purity white alpha-cellulose microfiber with fol lowing physical and chemical properties cellulose content: about 95%
average fiber length: 40 μm
average fiber thickness: 20 μm
Bulk weight: 190 g / l-260 g / l
White (absolute at 461 nm): 84% ± 5%
Residual residue (850 ° C, 4 h): approx. 1.5 ± 0.5%
pH value: 6.5 ± 1.5 with the following sieve analysis
Siebrückstand (in accordance with DIN 53 734 / air jet strainer) with a clear mesh size of is used, wherein
970 g of this starting material
With
22.5 g glyoxal hydrate
and
7.5 g of alkyl polyethylene glycol ether
be treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19617568A DE19617568C1 (en) | 1996-05-02 | 1996-05-02 | Water-repellent dispersion aid inhibiting agglomeration, useful in wide range of dispersions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19617568A DE19617568C1 (en) | 1996-05-02 | 1996-05-02 | Water-repellent dispersion aid inhibiting agglomeration, useful in wide range of dispersions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19617568C1 true DE19617568C1 (en) | 1997-12-11 |
Family
ID=7793088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19617568A Expired - Lifetime DE19617568C1 (en) | 1996-05-02 | 1996-05-02 | Water-repellent dispersion aid inhibiting agglomeration, useful in wide range of dispersions |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19617568C1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068344A1 (en) * | 2005-12-16 | 2007-06-21 | Unilever N.V. | Surface-active material and its application |
| US8597708B2 (en) | 2006-10-17 | 2013-12-03 | Conopco, Inc. | Food composition comprising gas bubbles and process for preparing it |
| US8945660B2 (en) | 2006-10-17 | 2015-02-03 | Ksf Acquisition Corporation | Edible foam product for the treatment or prevention of obesity |
-
1996
- 1996-05-02 DE DE19617568A patent/DE19617568C1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| Römpps Chemie-Lexikon, 8.Aufl., S.986 (1981) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068344A1 (en) * | 2005-12-16 | 2007-06-21 | Unilever N.V. | Surface-active material and its application |
| EP2230294A1 (en) * | 2005-12-16 | 2010-09-22 | Unilever N.V. | Surface-active material and its application |
| US8309154B2 (en) | 2005-12-16 | 2012-11-13 | Conopco, Inc. | Aerated food product with surface-active inorganic fibers |
| US8597708B2 (en) | 2006-10-17 | 2013-12-03 | Conopco, Inc. | Food composition comprising gas bubbles and process for preparing it |
| US8945660B2 (en) | 2006-10-17 | 2015-02-03 | Ksf Acquisition Corporation | Edible foam product for the treatment or prevention of obesity |
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| 8100 | Publication of patent without earlier publication of application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8364 | No opposition during term of opposition | ||
| 8330 | Complete renunciation |