Title:
【発明の名称】酸ドープ溶液中にセルロースを浸漬することによりセルロースにセルロースエステルを導入するための方法
Document Type and Number:
Japanese Patent JPH11511212
Kind Code:
A
Abstract:
A method for treating cellulose with cellulose ester for use in various paper products involves reacting cellulose and an acid anhydride to form a cellulose ester-carboxylic acid solution. Acetic anhydride may be used as the acid anhydride, and a cellulose acetate-acetic acid solution may formed as the resulting cellulose ester-acetic acid solution. The cellulose acetate-acetic acid solution is diluted in a mixer, with additional acetic acid. Bulk cellulose is milled into cellulose fibers, and the diluted cellulose acetate-acetic acid solution diluted is combined with the cellulose fibers to achieve a treated fiber. Excess cellulose acetate-acetic acid solution is removed from the treated fiber and recycled to the mixer used in dilution. The treated fiber is water washed followed by removing water from the washed treated fiber. This product can then be used in paper making to produce a sheet for circuit boards, laminated products, and various paper products.
Inventors:
Johnson, Griffin Ivan
Mitchell, Melvan Glen
Mitchell, Melvan Glen
Application Number:
JP53270697A
Publication Date:
September 28, 1999
Filing Date:
March 07, 1997
Export Citation:
Assignee:
Eastman Chemical Company
International Classes:
C08L1/02; D21C9/00; (IPC1-7): D21C9/00
Attorney, Agent or Firm:
Takashi Ishida (3 others)