MANUFACTURE OF COMPOSITE BOARD USING ACETYL CELLULOSE

Title:

MANUFACTURE OF COMPOSITE BOARD USING ACETYL CELLULOSE

Document Type and Number:

Japanese Patent JPH0826810

Kind Code:

A

Abstract:

PURPOSE: To obtain a no-asbestos-fiber composite board having the same or a higher level of physical properties than the case where asbestos fiber is used by molding a mixture of a siliceous raw material, a calcareous raw material, an acetyl cellulose having a low acetyl value and water followed by steam aging.

CONSTITUTION: This composite board is obtained by molding a mixture of a siliceous raw material, a calcareous raw material, acety] cellulose acetylated at the level where the obtained acetyl cellulose is essentially insoluble in water followed by steam aging. The acetyl value of the acetyl cellulose is usually about 0.5-8.4. Further, fiber lengths of the acetyl cellulose are usually 0.1-10.0mm.

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Inventors:

HIGUCHI NOBUAKI
TORAMARU YOUKO
MATSUMOTO MASAHIKO

Application Number:

JP15994094A

Publication Date:

January 30, 1996

Filing Date:

July 12, 1994

Export Citation:

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Assignee:

TOSCO CORP

International Classes:

C04B16/02; C04B28/18; C04B40/02; C08L1/00; C08L1/12; (IPC1-7): C04B28/18; C04B16/02; C04B40/02; C08L1/12

Attorney, Agent or Firm:

Minoru Nakamura (7 outside)

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