基本信息:
- 专利标题： 醚系纤维素衍生物微粒
- 申请号：CN201680062600.8 申请日：2016-10-26
- 公开(公告)号：CN108350091A 公开(公告)日：2018-07-31
- 发明人： 大坪孝彦 , 太田琴惠 , 越后裕司 , 竹崎宏 , 高木卓 , 皆神贤 , 伊藤彰记 , 御山寿
- 申请人： 东丽株式会社
- 申请人地址： 日本东京都
- 专利权人： 东丽株式会社
- 当前专利权人： 东丽株式会社
- 当前专利权人地址： 日本东京都
- 代理机构： 北京市中咨律师事务所
- 代理人： 段承恩; 孙丽梅
- 优先权： 2015-214372 2015.10.30 JP
- 国际申请： PCT/JP2016/081748 2016.10.26
- 国际公布： WO2017/073626 JA 2017.05.04
- 进入国家日期： 2018-04-25
- 主分类号： C08B11/02
- IPC分类号： C08B11/02
Provided are cellulose ether derivative fine particles that have an average particle size of 1-1000 μm, a linseed oil absorption of 50-1000 mL/100 g, and an average surface pore size of 0.05-5 μm, and that are obtained by mixing a cellulose ether derivative (A), a polymer (B) that is not a cellulose ether derivative, and an alcohol solvent (C), phase-separating the mixture into two phases which are a solution phase containing the cellulose ether derivative (A) as the main component and a solution phase containing the polymer (B) as the main component, forming an emulsion in a system in which the solvents of the two phases obtained by the phase separation are substantially the same, and thereafter, bringing the emulsion into contact with a poor solvent (D).