METHODS OF MAKING DISPERSIBLE ADDITIVES FOR POLYMERIC MATERIALS

Additives for polymeric compositions are prepared by coated a pigments with a dispersant, and thereafter dispersing the dispersant-coated pigment in a liquid nonaqueous polymeric carrier. Preferably, the dispersant-coated pigment is spraydried. That is, most preferably, an aqueous dispersion of the...

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Bibliographische Detailangaben
Hauptverfasser:	MCINTOSH, STANLEY A, GASPERSON, G. DANIEL, JONES, FRANK R, CASWELL, DONALD, SHORE, GARY W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS GENERAL PROCESSES OF COMPOUNDING MECHANICAL FINISHING OF YARNS OR ROPES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WARPING OR BEAMING WORKING-UP YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	Additives for polymeric compositions are prepared by coated a pigments with a dispersant, and thereafter dispersing the dispersant-coated pigment in a liquid nonaqueous polymeric carrier. Preferably, the dispersant-coated pigment is spraydried. That is, most preferably, an aqueous dispersion of the pigment and dispersant is subjected to a spray-drying operation so as to obtain pigment coated with the dispersant. The dispersant-coated pigment has an average particle size of about 5 .mu.m or greater, but is capable of breaking apart to average particle sizes of about 1 .mu.m or less when dispersed in a polymeric host material.