METHOD TO PRODUCE POLYMER MODIFIED GROUND TIRE RUBBER

The present invention provides methods for making shelf-stable fluidizable particles that comprise mixing from 35 wt. % to 89.95 wt. %, based on total solids, of particles of one or more vulcanizate having a sieve particle size of from 10 to 800 μm, 10 to 65 wt. %, based on total solids, of one or m...

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Bibliographische Detailangaben
Hauptverfasser:	LAU WILLIE, HEULINGS HARRY R
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides methods for making shelf-stable fluidizable particles that comprise mixing from 35 wt. % to 89.95 wt. %, based on total solids, of particles of one or more vulcanizate having a sieve particle size of from 10 to 800 μm, 10 to 65 wt. %, based on total solids, of one or more thermoplastic polymer in the form of an emulsion of a thermoplastic polymer in the presence of from 0.05 to 3 wt. %, based on total solids, of a passivating agent, to form a moist mixture followed by drying the moist mixture to form fluidizable particles such that the total solids content of the mixture remains 65 wt. % or more throughout processing. In addition, the invention provides plasticizer free storage stable fluidizable particles and 0colored fluidizable particles.