Spandex from poly(tetramethylene-co- ethyleneether)glycols blended with polymeric glycols

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United States of America Patent

PATENT NO 11421070
APP PUB NO 20130260128A1
SERIAL NO

13799004

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A polyurethaneurea composition comprises a reaction product of at least one diisocyanate compound, a polymeric glycol, a poly(tetramethylene-co-ethyleneether) glycol comprising constituent units derived by copolymerizing tetrahydrofuran and ethylene oxide (EO) wherein the portion of the constituent units derived from ethylene oxide is present in the poly(tetramethylene-co-ethyleneether) glycol from greater than about 37 to about 70 mole percent, at least one diamine chain extender, and at least one chain terminator. The invention further relates to the use of blends of polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols as the soft segment base in spandex compositions. The invention also relates to new polyurethane compositions comprising polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols, and their use in spandex.

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Patent Owner(s)

Patent OwnerAddress
THE LYCRA COMPANY LLC2711 CENTERVILLE ROAD ONE LITTLE FALLS CENTRE SUITE 300 WILMINGTON DE 19808

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Palmer,, Jr Charles Francis Greer, US 15 100

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