Title:
【発明の名称】低平均重合度値を有するアルカリ法パルプ及びその製造方法
Document Type and Number:
Japanese Patent JP2003533602
Kind Code:
A
Abstract:
The present invention provides compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization (D.P.) and a narrow molecular weight distribution. Further, the present invention provides processes for making compositions, useful for making lyocell fibers, by contacting an alkaline pulp having a high hemicellulose content of at least about 7% with an oxidant sufficient to reduce the average degree of polymerization to about 200 to 1100 without substantially reducing the hemicellulose content or increasing the copper number of the pulp.
Inventors:
Sealy, James E, The Second
Neogi, Amar N
Persinger, W Harvey, Junior
Luo, Menkui
Rochelli, Vincent A.
Neogi, Amar N
Persinger, W Harvey, Junior
Luo, Menkui
Rochelli, Vincent A.
Application Number:
JP2001584616A
Publication Date:
November 11, 2003
Filing Date:
April 11, 2001
Export Citation:
Assignee:
WEYERHAEUSER COMPANY
International Classes:
D21C3/02; D01D5/098; D01D5/18; D01F2/00; D21C9/00; D21C9/10; (IPC1-7): D21C3/02
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)