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pulverizing process for rubber scum 1

Apr 20, 2001 What I claim is 1. A process for producing fine rubber powders at ambient temperatures by using waste rubber comprising the following steps of a pre-pulverizing waste rubber by a mechanical roller into particles with a size of 1-4 mm b soaking the particles in a solvent selected from one or more alcohols andor ethers from 30 seconds to 10 minutes and c pulverizing the soaked rubber ...