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US 6,706,876 B2Granted
Cellulosic pulp having low degree of polymerization values
AssigneeWeyerhaeuser Company
InventorsMengkui Luo, Vincent A. Roscelli, Amar N. Neogi
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Abstract
The present invention is directed to a pulp useful for making lyocell fibers. The pulp has a degree of polymerization from about 300 to about 1000; an alpha cellulose content of less than about 90% and in one instance can be made in a roll form. The degree of polymerization can be modified by acid hydrolysis, steam explosion; or alkaline enzymate degradation.
Claims3
A cellulosic pulp product useful for making lyocell fibers comprising a Kraft pulp having a degree of polymerization from about 300 to about 1,000 and an alpha-cellulose content of less than 90%.
Dependencies are inferred from the claim text.