Dissolving wood pulps and methods of making and using the same
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United States of America Patent
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May 30, 2023
Grant Date -
Nov 18, 2021
app pub date -
Jul 29, 2021
filing date -
Feb 23, 2018
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Abstract
This disclosure relates to methods of making novel dissolving wood pulps by processes comprising acid prehydrolysis, pulping, and a multi-stage bleaching process comprising oxidation with a catalyst and peroxide under acidic conditions, as well as to products made therefrom having a combination of medium-purity, low viscosity, and improved reactivity, filterability, and/or clogging that can be used as a substitute for traditional high-purity dissolving pulps in a wide variety of applications.
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