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US 6,613,254 B1Granted
Method for making extruded, oriented fiber
AssigneeEthicon, Inc.
InventorIrwin J. Shiffer
Life of this patent
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Abstract
The present invention includes processes for making fibers, which processes include an extrusion step wherein molten polymers are extruded through an extrusion die, thereby forming at least one extruded filament; and an orientation step, wherein the filament is drawn to align the molecules of the filament, and wherein multivariate data analysis techniques are used to analyze data regarding various process variables and, optionally, process variables are adjusted in response to the multivariate data analysis.
Claims4
A process for making filaments, comprising:
- an extrusion step wherein molten polymers are extruded through an extrusion die, thereby forming at least one extruded filament;
- and an orientation step, wherein the filament is drawn to align the molecules of the filament;
- wherein multiple process variables of the extrusion step are monitored and data collected with respect thereto, the collected data is analyzed using a projections to latent structures technique and, optionally, process variables are adjusted in response to the analysis.
Dependencies are inferred from the claim text.