Invention Application
- Patent Title: PROCESS OF MAKING COLORED EXTRUDED ARTICLES
- Patent Title (中): 制作彩色超级文章的过程
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Application No.: PCT/US1996015339Application Date: 1996-09-25
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Publication No.: WO1997011830A1Publication Date: 1997-04-03
- Inventor: E.I. DU PONT DE NEMOURS AND COMPANY , LOCKE, John, S. , PEARLMAN, Paul, Sheldon , SHIBATA, Caroline, Tjhen , TADLER, Kenneth J.
- Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
- Assignee: E.I. DU PONT DE NEMOURS AND COMPANY
- Current Assignee: E.I. DU PONT DE NEMOURS AND COMPANY
- Priority: US60/004,405 19950928; US8/629,683 19960409
- Main IPC: B29C47/00
- IPC: B29C47/00
Abstract:
A process of making colored extruded articles wherein each colorant is contained in a separate color concentrate and each color concentrate is fed to an extruder (8) through a separate gravimetric feeder (2, 4, 6) where the color concentrates are melt blended with a thermoplastic polymer prior to extruding.
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