GRANULAR COLORANT FORMING SPECKLED PATTERN

PURPOSE:To provide a granular colorant which forms a beautiful speckled pattern on a resin molding and thus gives the molding a decorative effect. CONSTITUTION:A granular colorant is obtd. by covering the surface of a thermoplastic resin pellet as the central core with a hardenable resin well mixed...

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Bibliographic Details
Main Authors KOBAYASHI KATSUTOSHI, SAITO OSAMU, SHIRAIWA NOBUHIRO, TOMITA YOSHIRO
Format Patent
LanguageEnglish
Published 21.06.1994
Edition5
Subjects
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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Summary:PURPOSE:To provide a granular colorant which forms a beautiful speckled pattern on a resin molding and thus gives the molding a decorative effect. CONSTITUTION:A granular colorant is obtd. by covering the surface of a thermoplastic resin pellet as the central core with a hardenable resin well mixed in advance with a dye or pigment and then hardening the hardenable resin. The hardenable resin is ultraviolet-curable or of a multicomponent reactive type. Thus, the colorant is obtd. without resort of the previous grinding of a hardened resin, a high-cost secondary processing, or any special work on a mold or a molding machine. The colorant is homogeneously dispersed in a resin and gives a molding having a beautiful speckled pattern easily at a high reproducibility while using a generally used extruder or injection molding machine.
Bibliography:Application Number: JP19920330407