Pulverized Pulp and Method of Producing Cellulose Ether Using the Same
AssigneeShin-Etsu Chemical Co., Ltd.
InventorMitsuo NARITA
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Abstract
An object of the present invention is to provide a pulverized pulp in which the viscosity reduction caused by pulverization is mitigated and a method for producing cellulose ethers using such pulverized pulp. The above object is achieved by a pulverized pulp of being a pulverized product of a raw material pulp having a pH of 7.5 to 10.5 when measured by dispersing the raw material pulp in water, and having a percent decrease of 30% or less in viscosity caused by pulverization; and a method of producing a cellulose ether including reacting an alkali cellulose obtained from the pulverized pulp and an alkali metal hydroxide solution with an etherifying agent to obtain the cellulose ether.
Claims8
A pulverized pulp, comprising a pulverized product of a raw material pulp having a pH of 7.5 to 10.5 when measured by dispersing the raw material pulp in water, and wherein the pulverized pulp is 30% or less viscous than the raw material pulp.
Dependencies are inferred from the claim text.