Title:
セルロースエステルポリマーの製造法及びセルロースエステルポリマーを製造するためのセルロース前処理
Document Type and Number:
Japanese Patent JP5307011
Kind Code:
B2
Abstract:
A method of making cellulose ester polymer comprises the steps of: pre-treating a cellulose source; esterifying the pretreated cellulose source to form a cellulose ester; and optionally hydrolyzing the cellulose ester. The pretreatment step further comprises: mixing, in a first stage, the cellulose source with a first solution of a weak acid and water, whereby the cellulose source being suspended in the first solution; de-liquefying the first stage suspension; mixing, in a second stage, the de-liquefied mass with a second solution of weak acid and water, whereby the mass being suspended in the second solution; and de-liquefying the second stage suspension.
Inventors:
One, Linfu
Kaiser, Lawton, E.
Sams, Frederick, Sea.
Stoner, Henry, Pee.
Tony II, Charles, Yi.
Kaiser, Lawton, E.
Sams, Frederick, Sea.
Stoner, Henry, Pee.
Tony II, Charles, Yi.
Application Number:
JP2009528361A
Publication Date:
October 02, 2013
Filing Date:
July 09, 2007
Export Citation:
Assignee:
Celanese Acetate, LRC
International Classes:
C08B3/04; C08B3/06; C08B3/08
Domestic Patent References:
| JP9188702A | ||||
| JP8501326A | ||||
| JP10298201A | ||||
| JP60088191A | ||||
| JP58093701A | ||||
| JP5239101A | ||||
| JP57010301A |
Foreign References:
| US2478425 |
Attorney, Agent or Firm:
Seiji Ohno
Reiko Tanaka
Ken Kitano
Natsuki Ito
Reiko Tanaka
Ken Kitano
Natsuki Ito