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