PARTICLE SIZE CONTROL OF ORGANIC POLYMER COMPOUND POWDER

PURPOSE:To simply obtain the title powder having the wholly shifted particle size distribution of powder or narrowed particle size distribution, desired particle diameters and uniform particle size by growing fine particles of organic polymer compound powder. CONSTITUTION:Finely granulated organic p...

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Bibliographische Detailangaben
Hauptverfasser:	CHIKAKI YASUTAKA, UNO IKUO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To simply obtain the title powder having the wholly shifted particle size distribution of powder or narrowed particle size distribution, desired particle diameters and uniform particle size by growing fine particles of organic polymer compound powder. CONSTITUTION:Finely granulated organic polymer compound powder is heat- treated at =glass transition temperature to grow the fine particles of the powder, to enlarge the average particle diameter of the powder to narrow the particle size distribution. The raw material powder has preferably 0.1-50mum average particle diameter. Nylon or polystyrene is used as the organic polymer compound.