Method of making powder from rubber and vulcanization products

Details Method of making powder from rubber and vulcanization products Method of making powder from rubber and vulcanization products

1984-11-30

1986-08-26

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With solidifying, consolidating or shaping

241 23, 241 25, 241 29, 241DIG31, B02C 1912

Patent

active

046077960

ABSTRACT:
There is provided a method wherein the source material, rubber or vulcanization products is pulverized in an extruder wherein it is first compressed by a force of 0.2 to 0.7 MPa, then subjected simultaneously to a pressure ranging from 0.2 to 50 MPa and a shear force ranging from 0.03 to 5 N/mm.sup.2 while heating the material to a temperature ranging from 80.degree. to 250.degree. C. and then cooling said material to a temperature ranging from 15.degree. to 60.degree. C. The source materials can be used rubber goods, such as used tires and rejects of tire industry, footwear and industrial rubber production.

REFERENCES:
patent: 3190565 (1965-06-01), Jayne
patent: 3887319 (1975-06-01), Cottingham
patent: 4183448 (1980-01-01), Nash
T. Nazy, "Chemical Technology", Mar. 1976.
N. A. Rogov, "Production of Regenerate", 1957.

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