Sulfur vulcanizable rubber contining sodium thiosulfate pentahyd

Details Sulfur vulcanizable rubber contining sodium thiosulfate pentahyd Sulfur vulcanizable rubber contining sodium thiosulfate pentahyd

1996-09-16

1998-04-28

Jagannathan, Vasu

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253327, 525241, 525242, 525232, 525349, 524 83, 524419, C08F 834, C08L 700

Patent

active

057445524

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: 5187239 (1993-02-01), Parks et al.
patent: 5594052 (1997-01-01), D'Sidocky
International Polymer Science and Technology, vol. 2, No. 6, 1975, Shawbury GB, pp. t43-t44.
Rubber World, vol. 204, No. 5, Aug. 1991, pp. 18-24.
Helt et al: "Post vulcanization stabilization for NR," Rubber World, vol. 204, No. 5, Aug. 1991, pp. 18-24, XP000610653 International Polymer Science and Technology, vol. 2, No. 6, 1975, pp. T/43-T/44, XP002019420.

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