Method of granulating resorcinol/silica mixtures, the granulates

Details Method of granulating resorcinol/silica mixtures, the granulates Method of granulating resorcinol/silica mixtures, the granulates

1991-03-28

1992-09-01

Michl, Paul R.

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...

524492, 524493, 524511, 1563077, 156565, 156910, C08K 513, C08K 336, C08L 6112

Patent

active

051439620

ABSTRACT:
A method of granulating resorcinol/silica mixtures which comprises transporting a mixture of resorcinol and precipitated silica by conveyor worms to two pressing rollers whose shafts are attached vertically above one another and whose contact pressure can be varied, compacting said mixture between said rollers, breaking up the compacted mixture with a cake breaker to obtain a granulate with minimum grain size and separating the remaining dusty portion of said mixture. The mixtures can be added to vulcanizable rubber to provide improved adhesion to rubber reinforcements.

REFERENCES:
patent: 3751331 (1973-08-01), Dane et al.
patent: 3778406 (1973-12-01), Klotzer et al.

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