发明授权
US07459517B2 Polyhydroxyalkanoate, process for preparing the same, and resin composition containing the polyhydroxyalkanoate
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聚羟基链烷酸酯，其制备方法以及含有聚羟基链烷酸酯的树脂组合物
- 专利标题： Polyhydroxyalkanoate, process for preparing the same, and resin composition containing the polyhydroxyalkanoate
- 专利标题（中）： 聚羟基链烷酸酯，其制备方法以及含有聚羟基链烷酸酯的树脂组合物
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申请号： US10531226申请日： 2003-10-23
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公开(公告)号： US07459517B2公开(公告)日： 2008-12-02
- 发明人: Tatsuki Fukui , Tetsuya Yano , Chieko Mihara , Shinya Kozaki , Tsutomu Honma , Takashi Kenmoku
- 申请人： Tatsuki Fukui , Tetsuya Yano , Chieko Mihara , Shinya Kozaki , Tsutomu Honma , Takashi Kenmoku
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2002-310310 20021024; JP2003-092408 20030328; JP2003-356982 20031016
- 国际申请： PCT/JP03/13532 WO 20031023
- 国际公布： WO2004/037889 WO 20040506
- 主分类号： C08G63/02
- IPC分类号： C08G63/02 ; C08G63/91 ; C12P7/62 ; C08G9/08
摘要：
A novel polyhydroxyalkanoate having a monomer unit represented by the formula (1), the unit having a carboxyl group substituting a ring structure at the end of side chain, obtainable by oxydizing vinyl or methyl group substituting a ring structure at the end of the side chain. The polyhydroxyalkanoate has high thermal stability, charge stablity, a high charge amount, improved dispersibility and biodegradability together, and therefore, suitable for resin moldings, and binders and charge controlling agents for toners used in the electrophotographic process.