Using novel amines to stabilize quaternary trialkylalkanolamines

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United States of America Patent

PATENT NO 10264785
APP PUB NO 20170231219A1
SERIAL NO

15582883

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Abstract

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New stabilizers for solutions of choline hydroxide and related quaternary trialkylalkanolamines are disclosed. The stabilizers are alkyl hydroxylamines, hydrazines, hydrazides, or derivates thereof, including compounds containing more than one such functionality. The new stabilizers are effective at concentrations less than about 1000 ppm, and choline hydroxide solutions stabilized with the compounds described herein typically have Gardner Color change less than about 2.0 after six months at reasonable temperatures.

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Patent Owner(s)

Patent OwnerAddress
HUNTSMAN PETROCHEMICAL LLCU S A

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferguson, Dave C Spring, US 4 2

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