Melt spinning colored polycondensation polymers

Details Melt spinning colored polycondensation polymers Melt spinning colored polycondensation polymers

1997-09-15

2000-08-29

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

With incorporating dye susceptible material or dyeing workpiece

8497, 8512, 8516, 264103, 264130, 264143, 264211, 26421112, 26421114, D01F 106, D01F 662, D02G 302

Patent

active

061104051

ABSTRACT:
The invention is a method of coloring melt spun condensation polymers while avoiding hydrolytic degradation and maintaining the melt viscosity of the polymer. The method includes adding a liquid dispersion of a colorant to the melt phase of a condensation polymer, and in which the amount and type of the liquid in the dispersion will not substantially affect the melt viscosity of the condensation polymer; and thereafter spinning the colored melt phase condensation polymer into filament form. In another aspect the invention is a polyester filament including polyethylene terephthalate, a colorant, and a nonaqueous organic liquid that is soluble in melt phase polyester, and has a boiling point above 300.degree. C., but that otherwise does not modify the polymer chain.

REFERENCES:
patent: 3160600 (1964-12-01), Holsten et al.
patent: 3666713 (1972-05-01), Wear
patent: 3879341 (1975-04-01), Barkey et al.
patent: 3923726 (1975-12-01), Benz
patent: 3969312 (1976-07-01), Lees
patent: 4016132 (1977-04-01), Lees
patent: 4167503 (1979-09-01), Cipriani
patent: 4208318 (1980-06-01), Ono et al.
patent: 4264326 (1981-04-01), Rau
patent: 4443573 (1984-04-01), Wells et al.
patent: 4802886 (1989-02-01), Boocock
patent: 4842781 (1989-06-01), Nishizawa et al.
patent: 5057369 (1991-10-01), Yamaguchi et al.
patent: 5194090 (1993-03-01), Tajiri et al.
patent: 5308395 (1994-05-01), Burditt et al.
patent: 5389327 (1995-02-01), Longhi
patent: 5833893 (1998-11-01), Jones et al.
Abstract of Japan 58-149,311 (Published Sep. 5, 1983).
Anonymous, "Colorantes y Aditivos," Internet, Dec. 17, 1998, XP002088362, URL:http://www.plastecusa.com/coloramt.htm.

Affiliated with

Also associated with

Rating

Melt spinning colored polycondensation polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Melt spinning colored polycondensation polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Melt spinning colored polycondensation polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1246376