Title:
低置換度酢酸セルロース
Document Type and Number:
Japanese Patent JP6378712
Kind Code:
B2
Abstract:
A cellulose acetate according to the present invention has a total degree of acetyl substitution of 0.4 to 1.1 and has a compositional distribution index (CDI) of 3.0 or less, where the CDI is specified by the formula: CDI = Measured value of half height width of chemical composition / Theoretical value of half height width of chemical composition
where the measured value of half height width of chemical composition is a half height width of chemical composition determined by analyzing a cellulose acetate propionate by HPLC, where the cellulose acetate propionate is prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and Theoretical value of half height width of chemical composition = 2.35482 �¢ 3 * DPw * DS / 3 * 1 - DS / 3 / DPw where DS is the total degree of acetyl substitution; and DPw is a weight-average degree of polymerization determined by a GPC-light scattering method using a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample).
Inventors:
Ukida Shizuka
Hiroki Taniguchi
Shu Shimamoto
Toshikazu Nakamura
Hiroki Taniguchi
Shu Shimamoto
Toshikazu Nakamura
Application Number:
JP2016079434A
Publication Date:
August 22, 2018
Filing Date:
April 12, 2016
Export Citation:
Assignee:
Daicel Corporation
International Classes:
C08B3/06; D01F2/28
Domestic Patent References:
| JP58034801A | ||||
| JP62007701A | ||||
| JP9077801A | ||||
| JP2009155555A | ||||
| JP2003201301A | ||||
| JP5921762B2 | ||||
| JP4261401A | ||||
| JP56059801A | ||||
| JP48017580A |
Attorney, Agent or Firm:
Goto Patent Office
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