Charles Herbert King Jr.
Electrician at Greenhill St, Charlotte, NC

6383635, May 7, 2002

Aug 31, 1999

09/386812

Charles Melvin King - Charlotte NC
Christopher Waddell Goff - Charlotte NC
William Timothy Albright - Charlotte NC

Wellman, Inc. - Shrewbury NJ

B32B 2734

428395, 428364, 428365, 428392, 428480

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 comprises 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 comprising polyethylene terephthalate, a colorant, and a nonaqueous organic liquid that is soluble in melt phase polyester, and has a boiling point above 300° C. , but that otherwise does not modify the polymer chain.

6182685, Feb 6, 2001

Mar 17, 1999

9/271143

Christopher Waddell Goff - Charlotte NC
Charles Melvin King - Charlotte NC

Wellman, Inc. - Shrewsbury NJ

F16K 4900

137340

An injector structure is disclosed for delivering liquid additives, and particularly colorants, into a polyester production system capable of being cleaned without removal from a production line. The device includes a valve body with an internal channel extending longitudinally therein, a hollow housing for receiving a reciprocating stem, and an insulating jacket for minimizing the affect that heat from a melt extruder may have on the liquid colorant as the liquid colorant flows through the injector. A fluid inlet in communication with the internal channel is provided for delivering fluid from an external source to the valve body. The reciprocating stem, in an open position, allows liquid colorant to flow from the fluid inlet through the internal channel and out of a discharge opening at one end of the valve body. In a closed position, the reciprocating stem blocks the internal channel thereby preventing delivery of the fluid from the fluid inlet to the discharge opening. By reciprocating the stem within the internal channel, any obstructing matter is loosened, thereby allowing an uninterrupted flow of liquid colorant through the injector structure.

6110405, Aug 29, 2000

Sep 15, 1997

8/929831

Charles Melvin King - Charlotte NC
Christopher Waddell Goff - Charlotte NC
William Timothy Albright - Charlotte NC

Wellman, Inc. - Shrewsbury NJ

D01F 106, D01F 662, D02G 302

264 78

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.