发明授权
US08133990B2 6-position highly acetylated cellulose diacetate and process for producing the same
有权
6位高度乙酰化纤维素二乙酸酯及其制备方法
- 专利标题： 6-position highly acetylated cellulose diacetate and process for producing the same
- 专利标题（中）： 6位高度乙酰化纤维素二乙酸酯及其制备方法
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申请号： US12343217申请日： 2008-12-23
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公开(公告)号： US08133990B2公开(公告)日： 2012-03-13
- 发明人: Akihiro Higuchi
- 申请人： Akihiro Higuchi
- 申请人地址： JP Osaka
- 专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2007-337746 20071227
- 主分类号： C08B3/06
- IPC分类号： C08B3/06 ; C08B3/24
摘要：
Disclosed is a cellulose diacetate comprising a 6-position highly acetylated cellulose diacetate having a 6-percent viscosity of 40 to 600 mPa·s, and having a total degree of acetyl substitution of DSt and a degree of acetyl substitution at the 6-position of DS6, wherein DSt and DS6 satisfy following Conditions (1) and (2): 2.0≦DSt