Patent #: 7,163,743
Inventor(s): Kenneth Atwood, Anne-Marie Coffin, John Feathers, Richard Hayes and Charles Nelson
Company: E. I. du Pont de Nemours and Company
A monofilament comprising a polyester core and a core coating was granted a patent. The core coating comprises a vinylidene chloride copolymer. The monofilament is drawn at a draw ratio of about 3.0:1 to about 4.5:1 and is heated to a temperature up to about 100° C. The drawn monofilament is heat set at a temperature in the range of 100° C. to 220° C.
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