Color pigment master batch and blow molding method using the same
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United States of America Patent
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Apr 13, 2004
Grant Date -
Feb 27, 2003
app pub date -
Mar 28, 2002
filing date -
Apr 17, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A color pigment master batch having a high recycling property and a process for producing a blow-molded article having a grain-tone appearance using this color pigment master batch. The color pigment master batch for blow molding includes a pigment and a carrier resin. The carrier resin is a thermoplastic elastomer which is a crystalline or amorphous thermoplastic elastomer having a Vicat softening point higher than a melting temperature of a molding base resin and a crystal melting point or a flow-starting temperature higher by 20.degree. C. or more than a melting temperature of the molding base resin and in which an MFR ratio thereof to the molding base resin is 5 or more.
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