VULCANIZING ACCELERATOR FOR RUBBER

VULCANIZING ACCELERATOR FOR RUBBER

PURPOSE:A vulcanizing accelerator suitable for tire, tube, etc., effective in vulcanization with a sulfur or organic sulfur-containing compound, having improved dispersibility into rubber, bloom-resistant heat aging characteristics and low vulcanization return, having a specific structure. CONSTITUT...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAHAMA SEIICHI, YAMAGUCHI KAZUO, YOKOYAMA ISAMU, YAMAZAKI SHO, OSHIDA HIDETAKA
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:PURPOSE:A vulcanizing accelerator suitable for tire, tube, etc., effective in vulcanization with a sulfur or organic sulfur-containing compound, having improved dispersibility into rubber, bloom-resistant heat aging characteristics and low vulcanization return, having a specific structure. CONSTITUTION:100pts.wt. rubber (e.g., natural rubber, isoprene rubber, etc.,) is blended with 0.1-10pts.wt. sulfur or organic sulfur-containing compound as a vulcanizing agent and 0.1-10pts.wt., preferably 0.5-5pts.wt. compound [e.g., poly(1,13-dithia-4,7,10-trioxatridecane)-bis-(2-thiabenzothiazole), etc.,] shown by the formula (X is 1-3; n is 1-5) as a vulcanizing accelerator and vulcanized. A weight ratio of the vulcanizing agent/vulcanizing accelerator is 0.1/10-10/0.1, preferably 0.1-5/0.5.