CS244977B1 - Ingredient against aging with encreased effect - Google Patents
Ingredient against aging with encreased effect Download PDFInfo
- Publication number
- CS244977B1 CS244977B1 CS847123A CS712384A CS244977B1 CS 244977 B1 CS244977 B1 CS 244977B1 CS 847123 A CS847123 A CS 847123A CS 712384 A CS712384 A CS 712384A CS 244977 B1 CS244977 B1 CS 244977B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- aging
- weight
- aging additive
- additive
- encreased
- Prior art date
Links
- 230000032683 aging Effects 0.000 title description 6
- 230000000694 effects Effects 0.000 title description 2
- 239000004615 ingredient Substances 0.000 title 1
- 239000012962 antiaging additive Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- OXFSTTJBVAAALW-UHFFFAOYSA-N 1,3-dihydroimidazole-2-thione Chemical compound SC1=NC=CN1 OXFSTTJBVAAALW-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 101100345589 Mus musculus Mical1 gene Proteins 0.000 claims 1
- 239000013543 active substance Substances 0.000 claims 1
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 9
- DMAXMXPDVWTIRV-UHFFFAOYSA-N 2-(2-phenylethyl)phenol Chemical class OC1=CC=CC=C1CCC1=CC=CC=C1 DMAXMXPDVWTIRV-UHFFFAOYSA-N 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- ABPYVNPDRFJZEU-UHFFFAOYSA-N 2-(2,2,2-triphenylethyl)phenol Chemical class OC1=CC=CC=C1CC(C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 ABPYVNPDRFJZEU-UHFFFAOYSA-N 0.000 description 1
- ANPZHJKLCJISQH-UHFFFAOYSA-N 2-(2,2-diphenylethyl)phenol Chemical class OC1=CC=CC=C1CC(C=1C=CC=CC=1)C1=CC=CC=C1 ANPZHJKLCJISQH-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229930193551 sterin Natural products 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
Vynález sa týká přísady proti starnutiu pre biele, farebné a sadzové vulkanizáty z prírodného a syntetického kaučuku. Přísada proti starnutiu je zmesou 2-merkaptobenzimidazolu a arylalkylfenolov- s anorganickým plnivom.The invention relates to an anti-aging additive for white, colored and carbon black vulcanizates of natural and synthetic rubber. The anti-aging additive is a mixture of 2-mercaptobenzimidazole and arylalkylphenols with an inorganic filler.
Podta dosial známých postupov sa vyrábala přísada proti starnutiu pre biele, farebné i sadzové vulkanizáty z prírodného a syntetického kaučuku len v jednom druhu (AO č. 165 480). Táto přísada proti starnutiu pozostávala z technického 2-merkaptobenzimidazolu, ktorého čistota bola 80, maximálně 85 % účinnej látky, a ostatok tvořili sprievodné nečistoty, vznikajúce pri výrobě 2-merkaptobenzimidazolu, predovšetkým vol'ná síra, ktorej obsah bol 10 až 17 proč. Druhou zložkou přísady proti starnutiu je Antioxidant 3, ktorý představuje technická zmes fenyletylfenolov vo formě světlej viskóznej kvapaliny, dobré rozpustnej v běžných organických rozpúšťadlách. Treťou komponentou přísady proti stárnutí bolo anorganické plnidlo, upravujúce fyzikálně vlastnosti zmesi účinných látok. Nevýhodou dosial' známej přísady proti starnutiu bola nízká čistota používanej účinnej látky, a tým vysoký obsah nežiadúcich vedlejších komponent, ktoré neprispievali k účinnosti, resp. v bezsírnych vulkanizátoch malí negativny vplyv na antioxidačnú účinnost přísady ako takej. Dosial' využívaná přísada proti starnutiu obsahovala maximálně 35 % plnidiel, minimálně 19 % 2-merkaptobenzimidazolu a minimálně 46 % zmesných fenyletylfenolov.Anti-aging additives for white, colored and soot vulcanizates of natural and synthetic rubber have been produced in only one type (AO No. 165 480) according to the prior art. This anti-aging additive consisted of technical 2-mercaptobenzimidazole having a purity of 80 to a maximum of 85% of the active ingredient, and the remainder being the accompanying impurities resulting from the production of 2-mercaptobenzimidazole, in particular free sulfur having a content of 10 to 17 why. The second component of the anti-aging additive is Antioxidant 3, which is a technical blend of phenylethylphenols in the form of a light viscous liquid, well soluble in conventional organic solvents. The third component of the anti-aging additive was an inorganic filler, modifying the physical properties of the active ingredient mixture. A disadvantage of the known anti-aging additive has been the low purity of the active ingredient used, and thus the high content of undesirable secondary components, which did not contribute to the efficacy and / or effectiveness. in sulfur-free vulcanizates it has a negative effect on the antioxidant efficacy of the additive itself. The anti-aging additive used so far contained a maximum of 35% fillers, a minimum of 19% 2-mercaptobenzimidazole and a minimum of 46% mixed phenylethylphenols.
'Zistili sme, že je možné připravit přísadu proti starnutiu so zvýšenou účinnosťou, ktorá je vhodná pre aplikáciu do bielých, farebných i sadzových vulkanizátov z prírodného a syntetického1 kaučuku.'We found that it is possible to prepare anti-aging with increased efficiency, which is suitable for application to white, colored and soot vulcanized natural rubber and synthetic 1.
Přísada proti starnutiu pozostáva z 2-merkaptobenzimidazolu minimálnej čistoty 98 proč., pričom obsah je 15 — 25 % 2-merkaptoimidazolu, z 45 — 60 % hmotnostných technickej zmesi fenyletylfenolov, zložených z o- a p-izomérov monofenyletylfenolu, 2,4a 2,6-izomérov difenyletylfenolov a trifenyletylfenolu, pričom táto zmes má hustotu 1,08.10 -3 kg m_3. Trefou komponentou je oxid křemičitý, ktorého obsah v přísadě proti stárnutiu so zvýšenou účinnosťou je maximálně 30 — 33 % hmotnostných.The anti-aging additive consists of 2-mercaptobenzimidazole of minimum purity of 98 why, having a content of 15-25% of 2-mercaptoimidazole, of 45-60% by weight of a technical mixture of phenylethylphenols composed of the o- and p-isomers of monophenylethylphenol, 2,4 and 2, 6-isomers of diphenylethylphenols and triphenylethylphenol, the mixture having a density of 1.08.10 -3 kg m-3 . The preferred component is silica, whose content in the anti-aging additive having a maximum efficiency of 30-33% by weight.
Použitím novej přísady proti starnutiu pripravenej podl'a predmetu vynálezu, vykazujú surové zmesi hodnoty spracovatel'skej bezpečnosti o 20 % vyššie.By using the novel anti-aging additive prepared according to the invention, the raw mixtures show a processing safety value 20% higher.
Nová přísada proti starnutiu v sledovanej koncentrácii neovplyvňuje fyzikálno-mechanické vlastnosti vulkanizátu. V priebehu teplovzdušného starnutia po dobu 1 až 10 dní pri teplote 130 °C dochádza k spomaleniu degradácie namáhaného vulkanizátu. Úroveň pevnosti v tahu a ťažnosti starnúceho vulkanizátu s novou přísadou proti starnutiu je 0' 10 % vyššia v porovnaní s vulka4 nizátom, ktorý obsahoval doteraz známu přísadu proti starnutiu.The new anti-aging additive at the concentration of interest does not affect the physico-mechanical properties of the vulcanizate. During hot-air aging for 1 to 10 days at 130 ° C, degradation of stressed vulcanizate slows down. The level of tensile strength and ductility of an aging vulcanizate with a novel anti-aging additive is 0-10% higher compared to a filament 4 nizate containing a previously known anti-aging additive.
Predmet vynálezu dokumentujú nasledujúce příklady prevedenia:The following examples illustrate the invention:
Příklad 1 (Podlá dosial' známého postupu výroby sa přísada proti starnutiu připravuje následovně j:Example 1 (According to the known production process, the anti-aging additive is prepared as follows:
Do 220 kg technického 2-merkaptobenzimidazolu, obsahujúceho' maximálně 85 % účinnej látky, sa za miešania přidalo 315 kg SiOa a postupné sa za miešania pri teplote miestnosti připustilo 515 kg zmesi fenyletylfenolov. Analýzou přísady proti starnutiu sa zistili obsah 2-merkaptobenzimidazolu minimálně 19 % a obsah nerozpustného zvyšku v acetone maximálně 35 °/o. Obsah volnej síry v přísadě proti starnutiu bol minimálně 3 %.To 220 kg of technical 2-mercaptobenzimidazole containing not more than 85% active ingredient, 315 kg of SiO2 was added with stirring, and 515 kg of phenylethylphenols were gradually added with stirring at room temperature. Analysis of the anti-aging additive revealed a 2-mercaptobenzimidazole content of at least 19% and an insoluble residue content of no more than 35% acetone. The free sulfur content of the anti-aging additive was at least 3%.
Příklad 2 (Podlá nového postupu výroby sa přísada proti starnutiu připravuje následovně):Example 2 (According to a new manufacturing process, an anti-aging additive is prepared as follows):
Do 200 kg technického 2-merkaptobenzimidazolu, obsahujúceho minimálně 98 % účinnej látky, sa za miešania přidává 315 kg S1O2 a postupné za miešania pri teplote miestnosti sa přidává 535 kg zmesi fenyletylfenolov o hustotě 1,08.103 kg . m~3. Analýzou přísady proti starnutiu sa zisťuje obsah 2-merkaptobenzimidazolu minimálně 19,5 % a nerozpustný zvyšok v acetone maximálně 33 % hmotnostných. Obsah volnej síry klesá na hodnotu menšiu ako 0,1 % hmotnostného.To 200 kg of technical 2-mercaptobenzimidazole containing at least 98% active ingredient, 315 kg of S1O2 is added with stirring, and 535 kg of a mixture of phenylethylphenols having a density of 1.08.10 3 kg are added successively with stirring at room temperature. m ~ 3 . Analysis of the anti-aging additive reveals a content of 2-mercaptobenzimidazole of at least 19.5% and an insoluble residue in acetone of at most 33% by weight. The free sulfur content decreases to less than 0.1% by weight.
Příklad 3Example 3
Účinnost týchto zmesi bola hodnotená běžnými testami používanými v technologii kaučukov a gumy.The efficacy of these mixtures was evaluated by conventional tests used in rubber and rubber technology.
Vzorka novej přísady proti starnutiu bola porovnávaná s doteraz vyrábanou přísadou proti starnutiu podlá AO 165 480. Skúšobná zmes mala nasledujúce zloženie (dskj:A sample of the new anti-aging additive was compared to the previously produced anti-aging additive according to AO 165 480. The test composition had the following composition (dskj:
— butadienakrylonitrilový kaučuk 100 dsk — sterín 0,5 — ZnO 5,0 — sadze Nigros G 50,0 — TMTD 4,0 — MBT 1,0 — přísad proti stárnutiu 1,0- butadiene acrylonitrile rubber 100 dsk - sterin 0,5 - ZnO 5,0 - carbon black Nigros G 50,0 - TMTD 4,0 - MBT 1,0 - anti-aging additives 1,0
V připravených surových zmesiach a vulkanizátoch sme sledovali:In prepared raw mixtures and vulcanizates we observed:
a) vplyv na spracovatelskú bezpečnost a vulkanizačné charakteristiky(a) impact on processing safety and vulcanization characteristics
b) vplyv na mechanicko-fyzikálne vlastnosti(b) impact on mechanical-physical properties
c) vplyv na priebeh teplovzdušného starnutia.(c) influence on the course of hot air aging.
Porovnáním výsledkov sledovania sa zis244977 tili u vzorky č. 2 o 20 % vyššia hodnota spracovatel'skej bezpečnosti, rovnaké mechanicko-fyzikálne vlastnosti ako vzorka č. 1 a v priebehu teplovzdušného starnutia po dobu 1 — 10 dní pri teplote 130 °C dochádza k spomaleniu degradácie namáhaného vulkanizátu, úroveň v pevnosti tahu a ťažnosti starnutia je o 10 % vyššia v porovnaní so vzorkou č. 1.By comparing the tracing results, sample no. 2 by 20% higher value of processing safety, the same mechanical and physical properties as Sample no. 1 and during hot-air aging for 1 - 10 days at 130 ° C the degradation of stressed vulcanizate is slowed, the tensile strength and aging elongation level is 10% higher compared to sample no. First
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS847123A CS244977B1 (en) | 1984-09-21 | 1984-09-21 | Ingredient against aging with encreased effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS847123A CS244977B1 (en) | 1984-09-21 | 1984-09-21 | Ingredient against aging with encreased effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS712384A1 CS712384A1 (en) | 1985-11-13 |
| CS244977B1 true CS244977B1 (en) | 1986-08-14 |
Family
ID=5419791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS847123A CS244977B1 (en) | 1984-09-21 | 1984-09-21 | Ingredient against aging with encreased effect |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS244977B1 (en) |
-
1984
- 1984-09-21 CS CS847123A patent/CS244977B1/en unknown
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| Publication number | Publication date |
|---|---|
| CS712384A1 (en) | 1985-11-13 |
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