Optical molding material

An optical molding material which is an aromatic polycarbonate resin pellet, wherein the amount of fine powders having a particle diameter of 1.0 mm or less, produced from 5 kg of the pellets mixed in a vessel for 1 hour, is 300 ppm or less. The formation of carbide during molding can be suppressed...

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Bibliographische Detailangaben
1. Verfasser:	KAWANO, SHINZI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	An optical molding material which is an aromatic polycarbonate resin pellet, wherein the amount of fine powders having a particle diameter of 1.0 mm or less, produced from 5 kg of the pellets mixed in a vessel for 1 hour, is 300 ppm or less. The formation of carbide during molding can be suppressed by using the pellets of the present invention.