Compaction of pulverized rubber mixtures

Details Compaction of pulverized rubber mixtures Compaction of pulverized rubber mixtures

1977-04-11

1978-11-07

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4247, 260761, 260763, 260765, C08K 501

Patent

active

041245598

ABSTRACT:
Compacting of a rubber mixture by forcing a vulcanisable mixture of rubber and additives required for its manufacture through a diminishing cross-section. The mixture includes a vulcanising medium and is in the form of a pourable powder having a particle size of 0.1 to 6 mm with a powder density of 0.4 to 0.8 g/cm.sup.3. Compacting is at a temperature of 0.degree. to 60.degree. C, so that a granular, compact, yet not completely homogeneous, mixture of a density of 1.1 to 1.4 g/cm.sup.3 is produced. A device for compacting is also shown.

REFERENCES:
patent: 3654218 (1972-04-01), Clas et al.
patent: 3797702 (1974-03-01), Robertson
patent: 3799510 (1974-03-01), Schott
patent: 3846365 (1974-11-01), Berg et al.
patent: 3888997 (1975-06-01), Guibert
patent: 3895035 (1975-07-01), Berg et al.
patent: 3923707 (1975-12-01), Berg et al.
patent: 4032501 (1977-06-01), Schulz
Perry--Chemical Engineers' Handbook (5th ed.) (McGraw-Hill) (N.Y.) (1973) pp. 8-58 to 8-61.

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