Sulfur vulcanizable rubber containing sodium thiosulfate pentahy

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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152209R, 524419, C08K 546, C08K 330

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active

055940528

ABSTRACT:
A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100.degree. C. to 200.degree. C., said rubber composition, containing a sulfur vulcanizable rubber, a sulfenamide compound and a hydrated thiosulfate. Addition of the hydrated thiosulfate to a sulfur vulcanizable rubber and a sulfenamide compound significantly increases the rate of vulcanization of the rubber.

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patent: 5162409 (1992-11-01), Mroczkowski
patent: 5227425 (1993-07-01), Rauline
Yu. N. Nikitin, Vulcanization of Nitrile Rubber by Sulfides and Thiosulfates of Alkali and Alkaline Earth Metals, International Polymer Science and Technology, vol. 2, No. 6 (1975).
Ephraim, Fritz, Inorganic Chemistry, pp. 579-585 (1954).

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