Process for coloring thermoplastics

Details Process for coloring thermoplastics Process for coloring thermoplastics

1995-01-10

1995-10-31

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26432818, 264349, 523351, B29C 4546, B29C 4736

Patent

active

054627095

ABSTRACT:
An improved process for coloring polymethacrylates or polyglutarimides in an extruder includes admixing the molten thermoplastic, conveyed directly from the polymerization operation, in an extruder mixing zone with a dispersion of at least one pigment, dye, or colorant in a suitable clear carrier, then conveying the admixed colored thermoplastic into an extrusion zone or injection molding zone.

REFERENCES:
patent: 2136450 (1938-11-01), Marks
patent: 3562379 (1971-02-01), Duggins
patent: 4065532 (1977-12-01), Wild et al.
patent: 4125582 (1978-11-01), Langlois
patent: 4246374 (1981-01-01), Kopchik
patent: 4259277 (1981-03-01), Hill
patent: 4444714 (1984-04-01), Martenson
patent: 4484952 (1984-11-01), Bes et al.
patent: 4727117 (1988-02-01), Hallden-Abberton et al.
patent: 4985187 (1991-01-01), Bes et al.
patent: 4988477 (1991-01-01), Bes et al.
patent: 5236645 (1993-08-01), Jones
patent: 5326516 (1994-07-01), Brannon
C. Rauwendaal, "Mixing in Polymer Processing", M. Dekker, NYC (1991), pp. 164, 176, 180, 182, and 185-187.

Affiliated with

Also associated with

Rating

Process for coloring thermoplastics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for coloring thermoplastics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for coloring thermoplastics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1770491