Spinning process for nylon 4 fiber
AssigneeAmerican Cyanamid Company
InventorsDenis Coleman, Edwin J. Siegman
Life of this patent
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Abstract
A single phase fusion melt of nylon 4 and water when extruded through a spinneret to form a filament which is stretched provided a fiber of good physical properties without deterioration of the fiber-forming polymer.
Claims3
A process for spinning a nylon 4 fiber which comprises preparing a homogeneous single phase fusion melt of polypyrrolidone and water at a temperature above the boiling point of water at atmospheric pressure and at a temperature and pressure which maintain water in liquid state, said temperature being below the deterioration temperature of said polypyrrolidone, extruding said melt through a spinneret to form a filament, and stretching said filament to provide molecular orientation.
Dependencies are inferred from the claim text.