BE371606A - - Google Patents
Info
- Publication number
- BE371606A BE371606A BE371606DA BE371606A BE 371606 A BE371606 A BE 371606A BE 371606D A BE371606D A BE 371606DA BE 371606 A BE371606 A BE 371606A
- Authority
- BE
- Belgium
- Prior art keywords
- rubber
- masses
- hard rubber
- parts
- desc
- Prior art date
Links
- 240000008528 Hevea brasiliensis Species 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920001194 natural rubber Polymers 0.000 description 6
- 229920001875 Ebonite Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- -1 piperidine-piperidine dithiocarbamate Chemical compound 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000004575 stone Substances 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
<Desc/Clms Page number 1>
"Procédé de fabrication de masses analogues au caoutchouc dur"
Il a été découvert que l'on parvient à des masses précieuses analogues au caoutchouc dur, de
<Desc/Clms Page number 2>
résistance élevée à la chaleur et de bonne résistance aux agents chimiques, lorsqu'on traite de la manière usuelle pour le caoutchouc durci des mélanges de caoutchouc nature] et de masses artificielles analogues à du caoutchouc.
On peut ajouter aux mélanges, outre le soufre, d'autres addi- tions encore comme par exemple des accélérateurs de vulca- nisation, des substances de charge, etc,
On a trouvé particulièrement précieux les mé- langes de caoutchouc naturel avec le polymérisat au sodium du butadiène-(1.µ). Iles mélanges de caoutchouc dur qui con tiennent seulement ce genre de caoutchouc artificiel sans addition de caoutchouc naturel fournissent bien aussi un caoutchouc dur de valeur, mais sont difficiles à travailla.): Par l'adjonction appropriée de caoutchouc naturel, la possibilité de traitement est notablement améliorée et les produits obtenus présentent malgré cela encore une plus grande résistance à la chaleur et à l'attaque chimique que le caoutchouc dur provenant de caoutchouc naturel seul.
Exemple -.
Un mélange de 50 parties de caoutchouc brut (feuilles fumées), 50 parties de polymérisat au sodium du butadiène, 75 parties de soufre, une partie de pipéri- dine-dithiocarbamate de pipéridine, 150 parties de pierre ponce, 5 parties de chaux est vulcanisé pendant 90 mi- nutes à 4 ¸ atm. Il se produit . un vulcanisat qui se carac-
<Desc/Clms Page number 3>
térise par sa grande résistance à la chaleur et par sa ré- sistance chimique.
Ré s u m é :
1 - Procédé de fabrication de masses analogues à du caoutchouc dur, caractérisé en ce qu'on traite de la manière usuelle pour le caoutchouc dur des mélanges de caoutchouc naturel et de masses artificielles analogues à du caoutchouc, tandis qu'on peut y mélanger, outre le soufre, des accélérateurs de vulcanisation, des substances de charge et d'autres additions.
**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
<Desc / Clms Page number 1>
"Process for manufacturing hard rubber-like masses"
It has been found that valuable hard rubber-like masses of
<Desc / Clms Page number 2>
high heat resistance and good resistance to chemicals, when treated in the usual manner for hard rubber mixtures of natural rubber and artificial rubber-like masses.
In addition to sulfur, further additions can be added to the mixtures, such as, for example, vulcanization accelerators, fillers, etc.
Mixtures of natural rubber with sodium polymerizate of butadiene- (1.µ) have been found particularly valuable. Blends of hard rubber which contain only this kind of artificial rubber without the addition of natural rubber also provide valuable hard rubber, but are difficult to process.): By the appropriate addition of natural rubber, the processing possibility is markedly improved and the products obtained nevertheless exhibit even greater resistance to heat and chemical attack than hard rubber derived from natural rubber alone.
Example -.
A mixture of 50 parts of raw rubber (smoked sheets), 50 parts of sodium polymerizate of butadiene, 75 parts of sulfur, one part of piperidine-piperidine dithiocarbamate, 150 parts of pumice stone, 5 parts of lime is vulcanized for 90 minutes at 4 ¸ atm. It happens . a vulcanizate which is characterized
<Desc / Clms Page number 3>
terise by its high resistance to heat and by its chemical resistance.
Summary :
1 - A method of manufacturing hard rubber-like masses, characterized in that, in the usual way for hard rubber, mixtures of natural rubber and artificial rubber-like masses are treated, while they can be mixed, besides sulfur, vulcanization accelerators, fillers and other additions.
** ATTENTION ** end of DESC field can contain start of CLMS **.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE371606A true BE371606A (en) |
Family
ID=42859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE371606D BE371606A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE371606A (en) |
-
0
- BE BE371606D patent/BE371606A/fr unknown
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