NO810605L - PROCEDURE FOR THE MANUFACTURING OF SOLUTION SOLUTIONS - Google Patents
PROCEDURE FOR THE MANUFACTURING OF SOLUTION SOLUTIONSInfo
- Publication number
- NO810605L NO810605L NO810605A NO810605A NO810605L NO 810605 L NO810605 L NO 810605L NO 810605 A NO810605 A NO 810605A NO 810605 A NO810605 A NO 810605A NO 810605 L NO810605 L NO 810605L
- Authority
- NO
- Norway
- Prior art keywords
- rubber
- attritor
- solvent
- ground
- components
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title description 8
- 229920001971 elastomer Polymers 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 238000004073 vulcanization Methods 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/11—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Jellies, Jams, And Syrups (AREA)
Description
Oppfinnelsen vedrører en fremgangsmåte til fremstilling av kautsjukoppløsninger fra bestanddelene til en kautsjukblanding og et oppløsningsmiddel. The invention relates to a method for producing rubber solutions from the components of a rubber mixture and a solvent.
Slike kautsjukoppløsninger blir f. eks. benyttetSuch rubber solutions are e.g. used
til fremstilling av belagte vevnader, f. eks. gummibåter og luftmadrasser. Derved blir kautsjukoppløsningen vulkanisert etter bestrykning av vevnaden, slik at det fremkommer en fast forbindelse mellom det resulterende gummimateriale og vevnaden. for the production of coated fabrics, e.g. inflatable boats and air mattresses. Thereby, the rubber solution is vulcanized after coating the fabric, so that a firm connection is formed between the resulting rubber material and the fabric.
Fremstillingen av kautsjukoppløsninger foregikk inntil nu på den måte at de i porsjoner foreliggende ferdigblandinger samt porsjoner i form av granulat eller småflak ble oppløst i oppløsningsmidlet ved hjelp av knarøreverk eller skovlrøreverk. Hvis det skulle vise seg nødvendig med en re-duksjon av kornstørrelsen, måtte det etterkobles ytterligere arbeidstrinn, f. eks. rivemøller. Until now, the production of rubber solutions took place in such a way that the finished mixtures present in portions as well as portions in the form of granules or small flakes were dissolved in the solvent with the help of a mixer or paddle mixer. If it should prove necessary to reduce the grain size, further work steps had to be followed, e.g. shredders.
På grunn av de ved denne bearbeidelse oppstående, relativt høye temperaturer kunne inntil nu høyt akselererte, temperaturømfindtlige kautsjukblandinger ikke bearbeides på denne måte.... Because of the relatively high temperatures generated by this processing, until now highly accelerated, temperature-sensitive rubber compounds could not be processed in this way....
Dessuten var det til fremstilling av porsjoner eller ferdigblandinger nødvendig med kompliserte aggregater, som f. eks. gummispaltere, varmekamre, porsjonsknainnretninger med tilbehør, ferdigblandingsknainnretninger med tilbehør, valse-verk, siktemaskiner, eventuelt kalandre samt forvarmingsvalse-verk. Tilsetningsstoffer kunne bare i liten grad tilsettes ved oppløsing eller sammenføring av to oppløsninger. In addition, for the production of portions or ready-mixes, complicated aggregates were necessary, such as e.g. rubber splitters, heating chambers, portion kneading devices with accessories, ready-mix kneading devices with accessories, rolling mills, screening machines, possibly calenders and preheating rolling mills. Additives could only be added to a small extent by dissolving or combining two solutions.
Dessuten var den ved de inntil nu kjente metoder oppnådde partikkelstørrelse for kautsjukoppløsningene fremde-les relativt høy og lå vanligvis ikke under 50 ym. Til forbedring av vulkaniseringen, tettheten, finishen osv., altså generelt til forbedring av det ferdige produkt, blir det imid-lertid tilstrebet en minst mulig partikkelstørrelse, noe som ikke kunne oppnås med de kjente metoder. Moreover, the particle size obtained by the hitherto known methods for the rubber solutions was still relatively high and was usually not below 50 µm. In order to improve the vulcanization, the density, the finish, etc., i.e. in general to improve the finished product, the smallest possible particle size is aimed for, which could not be achieved with the known methods.
Den oppgave som derfor ligger til grunn for oppfinnelsen er å tilveiebringe en fremgangsmåte til fremstilling av kautsjukoppløsninger av den angitte type, ved hvilken de ovenfor nevnte ulemper ikke opptrer. The task which is therefore the basis of the invention is to provide a method for the production of rubber solutions of the specified type, in which the above-mentioned disadvantages do not occur.
Spesielt skal det tilveiebringes en fremgangsmåte, ved hvilken det med relativt lite tidsoppbud kan oppnås ek-stremt små partikkelstørrelser. In particular, a method must be provided, by which extremely small particle sizes can be obtained with relatively little time.
Dette blir ifølge oppfinnelsen oppnådd ved at bestanddelene og oppløsningsmidlet sammenmales i en attritor. According to the invention, this is achieved by grinding the components and the solvent together in an attritor.
Ved en attritor dreier det seg om en innretning, ved hvilken malelegemet og malegodset, altså i dette tilfelle bestanddelene i kautsjukblandingen og oppløsningsmidlet, be-finner seg i en faststående beholder. Malelegemet og malegods-mengden blir ved hjelp av et røreverk satt i rotasjon, slik at malelegemene tilføres kinetisk energi. Som resultat av de derved tilveiebragte slag-, friksjons- og slipebevegelser fremkommer en meget jevn fordeling av partiklene. An attritor is a device in which the grinding body and the grinding material, i.e. in this case the components of the rubber mixture and the solvent, are in a fixed container. The grinding body and the quantity of grinding material are put into rotation with the help of a stirrer, so that the grinding bodies are supplied with kinetic energy. As a result of the resulting impact, friction and grinding movements, a very even distribution of the particles appears.
Dessuten er det generelt i en slik attritor innebyg-get et pumpesystem, slik at chargen under sammenmalingen hele tiden holdes i et kontinuerlig kretsløp. In addition, a pump system is generally built into such an attritor, so that the charge is kept in a continuous circuit during the grinding.
Ved behov er det dessuten mulig med en temperatur-kontroll for malegodset. If necessary, it is also possible to have a temperature control for the paint material.
Det har nu vist seg at anvendelsen av en slik attritor fører til en partikkelstørrelse i størrelsesordenen 10 ym, hvorved den hertil nødvendig tid er mindre enn ved de kjente metoder. It has now been shown that the use of such an attritor leads to a particle size of the order of 10 ym, whereby the time required for this is less than with the known methods.
Det minste apparatmessige oppbud til fremstilling av kautsjukoppløsningen fremkommer hvis de ublandede, vanlige bestanddeler av en kautsjukblfjanding og oppløsningsmidlet sammenmales direkte i attritoren. De ovenfor forklarte, for fremstilling av den ferdige blanding, henholdsvis porsjon nødven-dige aggregater er altså da ikke mer nødvendig, slik at tiden reduseres til ca.en tredjedel av verdien til den tid som er nødvendig ved de kjente metoder. Likevel kan de ovenfor nevnte kornstørrelser på ca. 10 ym oppnås i et enkelt arbeidstrinn. The smallest equipment requirement for the preparation of the rubber solution occurs if the unmixed, common components of a rubber mixture and the solvent are ground together directly in the attritor. The above-explained aggregates required for the production of the finished mixture, respectively portions, are then no longer necessary, so that the time is reduced to approximately one-third of the value of the time required by the known methods. Nevertheless, the above-mentioned grain sizes of approx. 10 ym is achieved in a single work step.
Som alternativ hertil kunne det også sammenmales såkalte ferdigblandinger eller porsjoner, som småflak eller granulat, vulkaniseringsakseleratorer og oppløsningsmiddel i attritoren. Herved fremkommer i sammenligning med de kjente metoder en vesentlig forenkling, hvis relativt små partikkel-størrelser, nemlig partikler i størrelsesordenen på ca. 50 ym, skal oppnås. As an alternative to this, so-called finished mixtures or portions, such as small flakes or granules, vulcanization accelerators and solvent could also be ground together in the attritor. In comparison with the known methods, this results in a significant simplification, if relatively small particle sizes, namely particles in the order of approx. 50 ym, must be achieved.
Videre kan det med fremgangsmåten ifølge oppfinnelsen også bearbeides høyakselererte, temperaturømfindtlige kautsjukferdigblandinger, da den ved sammenmaling i en attritor tilveiebragte temperatur er relativt lav og ikke fører til en utløsning av ferdigblandingen. Furthermore, with the method according to the invention, it is also possible to process highly accelerated, temperature-sensitive rubber premixes, as the temperature provided by grinding together in an attritor is relatively low and does not lead to a release of the premix.
Til sist kan det også ved behov tilføres tilsetr • ningsstoffer uten noen som helst vanskeligheter, idet det tilsettes malegodset i attritoren ved et egnet tidspunkt. Finally, additives can also be added if necessary without any difficulty, as the ground material is added to the attritor at a suitable time.
Selv om i prinsippet alle for attritorer vanlige malelegemer, f. eks. flintestener eller metallkuler, kan benyttes, blir ifølge en foretrukket utførelsesform benyttet Steatit-kuler. Although in principle all of the attritors use ordinary grinding bodies, e.g. flint stones or metal balls can be used, according to a preferred embodiment steatite balls are used.
Oppfinnelsen blir i det følgende nærmere forklart ved hjelp av to utførelsesformer: Ved en første utførelsesform blir de vanlige bestanddeler i en kautsjukblanding, vulkaniseringsakselerator og oppløsningsmiddel samtidig eller etter hverandre innført i en attritor og malt til ønsket kornstørrelse på ca. 10 ym. Ved behov kan, hvis nødvendig, også tilsettes vanlige tilsetningsstoffer. In the following, the invention is explained in more detail with the help of two embodiments: In a first embodiment, the usual components of a rubber mixture, vulcanization accelerator and solvent are simultaneously or successively introduced into an attritor and ground to the desired grain size of approx. 10 etc. If necessary, normal additives can also be added.
Ved den andre utførelsesform blir porsjonsgranulat eller småflak, vulkaniseringsakselerator og oppløsningsmiddel samtidig eller etter hverandre innført i attritoren og opp-malt til den ønskede partikkelstørrelse på ca. 10 ym. Også her kan ved behov igjen tilsettes tilsetningsstoffer. In the second embodiment, portion granules or small flakes, vulcanization accelerator and solvent are simultaneously or successively introduced into the attritor and ground to the desired particle size of approx. 10 etc. Here too, additives can be added if necessary.
Ifølge de inntil nu foreliggende erfaringer kan alle til fremstilling av kautsjukoppløsninger vanligvis benyttede materialer anvendes. Således ble det oppnådd gode resultater såvel ved naturkautsjuk som også ved kunstig kautsjuk, f. eks. butylkautsjuk eller kloroprenpolymerisater. Heller ikke ved anvendelsen av de vanlige oppløsningsmidler, f. eks. toluol eller bensin, fremkommer vanskeligheter. According to the experience available up to now, all materials normally used for the production of rubber solutions can be used. Thus, good results were achieved both with natural rubber and also with artificial rubber, e.g. butyl rubber or chloroprene polymers. Nor when using the usual solvents, e.g. toluene or gasoline, difficulties arise.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3009271A DE3009271C2 (en) | 1980-03-11 | 1980-03-11 | Process for the production of rubber solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
NO810605L true NO810605L (en) | 1981-09-14 |
Family
ID=6096850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO810605A NO810605L (en) | 1980-03-11 | 1981-02-20 | PROCEDURE FOR THE MANUFACTURING OF SOLUTION SOLUTIONS |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3009271C2 (en) |
FR (1) | FR2477956A1 (en) |
GB (1) | GB2071113B (en) |
IT (1) | IT1141981B (en) |
NO (1) | NO810605L (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3212643C2 (en) * | 1982-04-05 | 1985-04-04 | Continental Gummi-Werke Ag, 3000 Hannover | Method and device for the production of rubber solutions |
DE4001774A1 (en) * | 1990-01-23 | 1991-08-01 | Continental Ag | METHOD AND DEVICE FOR RELEASING ELASTOMERS IN A CLOSED SYSTEM |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB330953A (en) * | 1929-02-22 | 1930-06-23 | Fritz Kempter | Improvements relating to the manufacture of rubber solutions |
US2793195A (en) * | 1953-06-02 | 1957-05-21 | Goodrich Co B F | Process for preparing pigmented organic plastics |
FR1428643A (en) * | 1964-02-17 | 1966-02-18 | Columbian Carbon | Process for dissolving elastomers in organic solvents |
DE2432860C2 (en) * | 1974-07-09 | 1985-05-02 | Draiswerke Gmbh, 6800 Mannheim | Apparatus for the continuous dispersion and fine grinding of solids in a liquid dispersant |
DE2546146A1 (en) * | 1975-10-15 | 1977-04-28 | Netzsch Maschinenfabrik | PROCEDURE FOR CONTINUOUS FINE GRINDING AND DISPERSING AND STIRRING MILLS FOR CARRYING OUT THE PROCESS |
DE2803290A1 (en) * | 1978-01-26 | 1979-08-02 | Draiswerke Gmbh | Dispersion and fine grinding of pigment - has pigment added as granules in agitator with sizes exceeding grinding elements |
-
1980
- 1980-03-11 DE DE3009271A patent/DE3009271C2/en not_active Expired
-
1981
- 1981-02-16 IT IT19792/81A patent/IT1141981B/en active
- 1981-02-17 FR FR8103053A patent/FR2477956A1/en not_active Withdrawn
- 1981-02-20 NO NO810605A patent/NO810605L/en unknown
- 1981-03-09 GB GB8107347A patent/GB2071113B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3009271C2 (en) | 1982-12-23 |
FR2477956A1 (en) | 1981-09-18 |
DE3009271A1 (en) | 1981-09-17 |
IT8119792A0 (en) | 1981-02-16 |
GB2071113B (en) | 1983-09-28 |
GB2071113A (en) | 1981-09-16 |
IT1141981B (en) | 1986-10-08 |
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