Processes for manufacturing thermoplastic resin compositions
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United States of America Patent
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Jan 25, 1994
Grant Date -
N/A
app pub date -
Apr 2, 1990
filing date -
Apr 5, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for manufacturing a thermoplastic resin composition by melt-kneading a thermoplastic resin and fine particles or an additive, includes: introducing gaseous and/or liquid fluid containing fine particles of at most 10 .mu.m particle diameter or an additive to an unmelted granular or molten thermoplastic resin moving bed; adhering or depositing the fine particles or additive onto said moving bed, while the fluid in the gaseous state is being discharged; and then successively melt-kneading a mixture of the granular resin with the fine particles or additive. This process can be combined with a subsequent shaping step continuously that follows. The process of the invention saves energy, raw materials and labor consumptions and yields shaped articles of high quality and uniformity.
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