Method for forming nanofiber nonwoven products

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United States of America Patent

PATENT NO 11965275
APP PUB NO 20210355617A1
SERIAL NO

17388544

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Abstract

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A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.

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Patent Owner(s)

Patent OwnerAddress
ASCEND PERFORMANCE MATERIALS OPERATIONS LLC1010 TRAVIS STREET SUITE 900 HOUSTON TX 77002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ortega, Albert Pensacola, US 19 52
Osborn, Scott E Pensacola, US 24 135
Schwier, Chris Pensacola, US 8 8
Yung, Wai-Shing Pensacola, US 31 95

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