Process for the production of free-flowing rubber powders with s

Details Process for the production of free-flowing rubber powders with s Process for the production of free-flowing rubber powders with s

1987-08-18

1988-09-13

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523209, 524236, 524442, 524492, 524575, C08K 336, C08K 500, C08L 700, C08L 900

Patent

active

047710926

ABSTRACT:
A process for the production of free-flowing rubber powders with silicic acid as filler comprises combining a rubber latex with silicic acid filler while stirring in the presence of specific auxiliary agents, adjusting the pH range of the mixture to cause coagulation, and separating and drying the resultant solids wherein the specific auxiliary agents comprise organic surfactants together with colloidal silicic acid.

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patent: 4003981 (1977-01-01), Turk et al.
patent: 4070286 (1978-01-01), Iler et al.
patent: 4105426 (1978-08-01), Iler et al.
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patent: 4250082 (1981-02-01), Sommer et al.
patent: 4357439 (1982-11-01), Blumel et al.
patent: 4482657 (1984-11-01), Fischer et al.
patent: 4567231 (1986-01-01), Huebner et al.
patent: 4659607 (1987-04-01), Kataoka et al.

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