Jerry W Potter

US Patent:

6764762, Jul 20, 2004

Filed:

Sep 10, 2002

Appl. No.:

10/238748

Inventors:

Paul Douglas Seemuth - Chattanooga TN
Jerry Fuller Potter - Seaford DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

D02G 300

US Classification:

428364, 428375, 428378, 428394, 811551, 81156

Abstract:

The present invention relates to the application of lubricant to fluoropolymer yarn which enables the yarn to be drawn at a high draw ratio and is removable by scouring, the lubricant being thermally stable at a temperature of at least 120Â C. , and being removable from the yarn by scouring and comprising oil and surfactant and/or wetting agent to enable the lubricant to spread over the surface of the yarn upon application to the yarn, the lubricant comprising oil such as a C6-C20 aliphatic acid ester of a polyol and a surfactant and/or wetting agent.