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US 6,440,547 B1Granted
Lyocell film made from cellulose having low degree of polymerization values
AssigneeWeyerhaeuser Company
InventorsMengkui Luo, Vincent A. Roscelli, Amar N. Neogi, James E. Sealey, II, Richard A. Jewell
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Abstract
The present invention provides lyocell films, having a high hemicellulose content of at least 5%, a low copper number of less than 2, and including cellulose that has a low average degree of polymerization (D.P.) in the range of about 200 to 1100.
Claims1
Lyocell film comprising:
- (a) a hemicellulose content of at least 5% by weight;
- (b) cellulose having an average degree of polymerization of from about 200 to about 1100;
- and
- (c) a copper number less than about 2.0.
1 more element
Dependencies are inferred from the claim text.