Method of manufacturing pourable pulverulent rubber-filler mixtu

Details Method of manufacturing pourable pulverulent rubber-filler mixtu Method of manufacturing pourable pulverulent rubber-filler mixtu

1989-01-30

1990-03-27

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523333, 523334, C08L 900

Patent

active

049121510

ABSTRACT:
A method for manufacturing pourable pulverulent rubber-filler mixtures starting from rubber solutions is disclosed. In this method, the filler is dispersed in an organic solvent and then mixed with a rubber solution to obtain a stable rubber-containing filler dispersion. The dispersion is then introduced into hot water containing a dispersed filler and subjected to high shear forces, causing the organic solvent to simultaneously be largely distilled off. After the rubber-containing filler dispersion has been completely added, an aqueous filler dispersion is added, water is removed from the precipitated rubber-filler mixture, and the product mixture is dried under constant agitation.

REFERENCES:
patent: 4250082 (1981-02-01), Sommer et al.

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