Process and apparatus for comminuting particle rubber

Details Process and apparatus for comminuting particle rubber Process and apparatus for comminuting particle rubber

2006-09-19

2006-09-19

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

With heating or cooling of material

C241S024170, C241S024270, C241S065000, C241S259100, C241S261100, C241SDIG031, C241SDIG037

Reexamination Certificate

active

07108207

ABSTRACT:
A process and apparatus for comminuting rubber particles. In this process and apparatus rubber particles at a temperature below the glass transition temperature are introduced into a comminuting device concurrent with the introduction of an inert gas coolant at a temperature below about −75° F. The rubber particles are comminuted in the comminuting device at a rate proportional to the average particle size of the introduced rubber particles to an average size within the range of crumb or powder rubber particles.

REFERENCES:
patent: 4222527 (1980-09-01), Davis
patent: 4273294 (1981-06-01), Hollely et al.
patent: 5624078 (1997-04-01), Bredbeck
patent: 5634599 (1997-06-01), Khais et al.

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