Patent Number:
6,884,883
Title:
Method for reducing pulp to powder and process for the production of a cellulose ether
Abstract:
Pulp is ground by means of a vertical roller mill. The average particle diameter of the resulting powdered pulp is adjusted to 20-300 .mu.m. The powdered pulp thus obtained is used as a starting material for the production of cellulose ethers.
Inventors:
Shima; Yukio (Niigata-ken, JP), Narita; Mitsuo (Niigata-ken, JP), Hatayama; Atsushi (Niigata-ken, JP)
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classification:
C08B 1/06 (20060101); C08B 1/00 (20060101); C08B 037/00 (); C08B 003/22 (); C08B 011/00 (); C07H 001/00 ()
Expiration Date:
04/26/2022