Vulcanization process and compositions for use therein

Details Vulcanization process and compositions for use therein Vulcanization process and compositions for use therein

1979-12-26

1981-01-20

Hamrock, William F.

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

Synthetic resins

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

260 237H, C08L 9100

Patent

active

042463750

ABSTRACT:
The use of C.sub.10 to C.sub.14 alkanoic acids, especially lauric acid, as a processing aid in the vulcanization of polychloroprene rubbers by heating in the presence of magnesium oxide, zinc oxide and thiophosphoric-N,N',N"-trimethyltriamide. Also the manufacture of pre-formed mixtures of the acid and the amide in the ratio of 0.5:1 to 2:1 for use in this process.
The use of these acids overcome the technical problem of blooming on storage which is obtained when the more usual stearic acid is used in the process.

REFERENCES:
patent: 3400106 (1968-09-01), Morita
patent: 3458461 (1969-07-01), Mihal
patent: 3810856 (1974-05-01), Dalhuisen et al.

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