Method of producing styrenic resin granulate and shaped article
AssigneeIdemitsu Petrochemical Co., Ltd.
InventorHirofumi Ishibashi
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Abstract
The invention provides a method of producing styrenic resin granulates including dry-compression-molding a powder of styrenic resin having a syndiotactic configuration at a compression pressure of 1-20 t/cm and at a molding temperature falling within the range of the glass transition temperature of the powder of styrenic resin to the melting point thereof, inclusive; and crushing the resultant molded product. High-quality styrenic polymer granulates can be produced in an industrially advantageous manner by means of a large-scale apparatus for producing styrenic polymer having a syndiotactic configuration.
Claims5
A method of producing styrenic resin granulates, comprising
- dry-compression-molding a powder of styrenic resin having a highly syndiotactic configuration at a compression pressure of 1-20 t/cm and at a molding temperature falling within a range of the glass transition temperature of the powder of styrenic resin to the melting point thereof, inclusive;
- and
- crushing the resultant molded product.
Dependencies are inferred from the claim text.