发明名称 |
LOW-SUBSTITUTED CELLULOSE ACETATE |
摘要 |
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). |
申请公布号 |
EP2975063(A4) |
申请公布日期 |
2016.08.17 |
申请号 |
EP20140763960 |
申请日期 |
2014.03.12 |
申请人 |
DAICEL CORPORATION |
发明人 |
UKITA, SHIZUKA;TANIGUCHI, HIROKI;SHIMAMOTO, SHU;NAKAMURA, TOSHIKAZU |
分类号 |
C08B3/06;C08B3/24;C08B3/28;C08J5/18;C08L1/12;C08L1/14;D01F2/28 |
主分类号 |
C08B3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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