DE344061C - Process for producing a vulcanization accelerator - Google Patents
Process for producing a vulcanization acceleratorInfo
- Publication number
- DE344061C DE344061C DE1919344061D DE344061DD DE344061C DE 344061 C DE344061 C DE 344061C DE 1919344061 D DE1919344061 D DE 1919344061D DE 344061D D DE344061D D DE 344061DD DE 344061 C DE344061 C DE 344061C
- Authority
- DE
- Germany
- Prior art keywords
- vulcanization accelerator
- producing
- vulcanization
- magnesia
- same
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Verfahren zur Herstellung eines Vulkanisationsbeschleunigers. Es hat sich herausgestellt, daß die organischen Vulkanisationsbeschleuniger wie Piperidin, Aldehydammoniak, para-Nitros-odimethylanilin, Hexamethylentetramin wohl insofern den anorganischen Vulkanisationsibeschleunigern überlegen sind, als sie bei gleichen Zumischungsmengen und gleichen Vulkanisationszeiten und -wärmegraden erheblich höhere Vulkanisationskoeffizienten ergeben, aber .es hat sich doch zugleich herausgestellt, d.aß sie gleichzeitig nicht die gleiche Strammheit der Vulkanisate ergeben, wie man sie bei Anwendung von Magnesia, Bleioxyd usw. erhielt. Die Vulkanisate wurden bei Ausführung der Reißversuche sehr oft mangels genügender Strammheit schon durch die Druckwirkung der Einspannklemmen zerquetscht.Process for the production of a vulcanization accelerator. It has it turned out that the organic vulcanization accelerators such as piperidine, Aldehyde ammonia, para-nitrosodimethylaniline, hexamethylenetetramine probably insofar are superior to the inorganic vulcanization accelerators than they are to the same Mixing quantities and the same vulcanization times and degrees of heat are considerably higher Vulcanization coefficients, but it turned out at the same time that d.that at the same time they do not produce the same tightness of the vulcanizates as they were obtained by using magnesia, lead oxide, etc. The vulcanizates were when the tear tests are carried out very often already through for lack of sufficient tightness crushes the pressure of the clamps.
Dieser Nachteil steigerte sich noch erheblich, wenn in der Mischung Vaseline, Paraffin oder Asphaltprodukte wie der sogenannte Mineral-Rubber« enthalten waren.This disadvantage increased significantly when in the mix Contain petroleum jelly, paraffin or asphalt products such as so-called mineral rubber was.
Es wunde nun versucht, die Wirksamkeit der an sich vorzüglich als Vulkanisationsbeschleuniger bewährten Magnesia usta zu erhöhen, so daß sie den heutigen gesteigerten Ansprüchen genügt. Diese Aufgabe wurde in folgender Weise gelöst: ioo Teile gebrannter Magnesia wurden mit ro Teilen einer 3oprozentigen NaOH enthaltenden Natronlauge vermischt unter geeigneter ständiger Zerteilung der sich zu Anfang bildenden Zusammernballungen, ~vabei die Natronlauge nur nach und nach in kleinen Anteilen zugegeben wurde. Das erhaltene durchaus trockene und weiche Pulver wird zweckmäßig sofort in luftdichte Verpackungsmittel gegeben.It is now trying to prove the effectiveness of the in itself excellent Vulcanization accelerators proven to increase magnesia usta, making them today's satisfies increased demands. This task was solved in the following way: ioo Parts of burnt magnesia were mixed with ro parts of 3% NaOH Sodium hydroxide solution mixed with suitable constant division of the initially formed Agglomeration, the caustic soda only gradually in small portions was admitted. The thoroughly dry and soft powder obtained is expedient Immediately put in airtight packaging.
Statt h,Tatronlauge kann auch Kalilauge verwandt werden. Die Stärke der benutzten Alkalilauge und das Zumischungsverhältnis kann natürlich verändert werden.Instead of h, sodium hydroxide solution, potassium hydroxide solution can also be used. The strenght the alkali lye used and the mixing ratio can of course be changed will.
Zweckmäßig mischt ma:n von der nach .dem vorstehenden Beispiel hergestellten Vulkanisationsbeschleuni.ger die gleichen Mengen in Kautschukmischungen ein wie von der üblichen gebrannten Magnesia, kürzt aber die V ulkanisationadauer j e nach der Dicke der herzustellenden Gummiwaren und je nach der gewünschten Strammheit ab.It is advisable to mix the one prepared according to the above example Vulcanization accelerators include the same amounts in rubber compounds as from the usual burnt magnesia, but the duration of the vulcanization is shortened the thickness of the rubber goods to be produced and depending on the tightness desired away.
Die Mengenverhältnissesind so abgestimmt, ; daß schädliche Übertreibungen des Alkalizusatzes ohne weiteres vermieden werden.The proportions are matched so that; that harmful exaggerations the addition of alkali can easily be avoided.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE344061T | 1919-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE344061C true DE344061C (en) | 1921-11-14 |
Family
ID=573069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1919344061D Expired DE344061C (en) | 1919-11-12 | 1919-11-12 | Process for producing a vulcanization accelerator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE344061C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010032A1 (en) * | 1989-02-28 | 1990-09-07 | Pipe & Sewer Renovations Limited | Rubber compositions |
-
1919
- 1919-11-12 DE DE1919344061D patent/DE344061C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010032A1 (en) * | 1989-02-28 | 1990-09-07 | Pipe & Sewer Renovations Limited | Rubber compositions |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE344061C (en) | Process for producing a vulcanization accelerator | |
DE2143768C3 (en) | Zinc-N-n-Dodecyl-N-isopropyldithiocarbamate and its use as a vulcanization accelerator | |
US2228158A (en) | Casein vehicle and method of making same | |
US1604126A (en) | Solidified water-softening compound | |
DE946433C (en) | Process for the production of silica in highly active, voluminous powder form | |
US1662299A (en) | Road binder | |
AT96525B (en) | Process for the manufacture of soap from cereals. | |
DE415092C (en) | Process for the production of dry products from alkali starch | |
US1607585A (en) | Process of treating caoutchouc latex | |
DE389748C (en) | Process for the production of dry products from alkali starch | |
DE535448C (en) | Process for producing a heat protection agent, consisting of basic magnesium carbonate and fibers | |
US1887201A (en) | Manufacture of goods of rubber or similar material | |
AT142583B (en) | Process for the production of hard rubber in the form of dust. | |
DE378356C (en) | Process for the manufacture of explosive cartridges | |
AT73473B (en) | Process for the production of a resin glue substitute for paper sizing. | |
US2218242A (en) | Chemically bonded refractory | |
US765999A (en) | Smokeless gunpowder and method of making same. | |
DE339286C (en) | Process for producing a machinable mass from organic raw materials | |
DE870078C (en) | Process for the production of self-setting compounds | |
AT164806B (en) | Process for the preparation of an essentially monobasic lead salt of 2,4-Dinitroresorzins | |
AT97919B (en) | Process for the production of a hard rubber-like mass. | |
DE922352C (en) | Process for the production of plant-physiologically valuable xerogels | |
US1334358A (en) | Casein composition | |
AT81185B (en) | Process for the production of moldable elastic glue. Process for the production of moldable elastic glue mass. immasse. | |
US1762153A (en) | Method of treating aqueously-dispersed colloidal substances |