PREPARATION OF HYDROXYALKYLALKYLCELLULOSE

Title:

PREPARATION OF HYDROXYALKYLALKYLCELLULOSE

Document Type and Number:

Japanese Patent JPS60192702

Kind Code:

A

Abstract:

PURPOSE: To produce a hydroxyalkylalkylcellulose in good reaction efficiency by suppressing side reactions, by reacting an alkali cellulose with both an alkylene oxide and an alkyl halide in a specified two-stage process.

CONSTITUTION: An alkali cellulose (of an alkali content corresponding to 5W 80mol% of the total alkyl halide used in the reaction) is reacted with an alkyl halide (e.g., methyl chloride) in an amount of 0W80wt% of the total alkyl halide used at a temperature of about 30W90°C for about 0.5W5hr. Next, a necessary amount of an alkali hydroxide (e.g., sodium hydroxide) and the remaining portion of the alkyl halide are added to the reaction system, and the resulting mixture is reacted at about 10W90°C to produce a hydroxyalkylalkylcellulose.

Inventors:

CHIBA TOORU
MARUYAMA KAZUMASA
NAGURA SHIGEHIRO
HATAYAMA KOUJI
MUTOU YASUAKI

Application Number:

JP4838984A

Publication Date:

October 01, 1985

Filing Date:

March 14, 1984

Export Citation:

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Assignee:

SHINETSU CHEM IND CO

International Classes:

C08B11/193; (IPC1-7): C08B11/193

Domestic Patent References:

JPS5038782A

1975-04-10

Foreign References:

US4096325A

1978-06-20

Attorney, Agent or Firm:

Ryoichi Yamamoto

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