Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...
Patent
1997-03-04
1998-05-26
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling rate of movement of molding material or its...
264 78, 264211, B29C 4792, D01F 104
Patent
active
057560200
ABSTRACT:
A process for producing solution dyed extruded articles from thermoplastic polymer wherein each colorant is contained in a separate color concentrate and each concentrate is fed to an extruder through a separate gravimetric feeder where the concentrates are melt blended with the thermoplastic polymer prior to extruding.
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AATCC Committee, CMC: Calculation of Small Color Differences for Acceptability, AATCC Technical Manual, pp. 321-324, 1991.
Roderick McDonald, Acceptability and Perceptibility Decisions Using the CMC Color Difference Formula, Quality Control, vol. 20, No. 6, pp. 31-37, Jun. 1988.
Locke John S.
Pearlman Paul Sheldon
Shibata Caroline Tjhen
Tadler Kenneth J.
E. I. Du Pont de Nemours and Company
Tentoni Leo B.
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