发明授权
- 专利标题： Polylactic acid and manufacturing process thereof
- 专利标题（中）： 聚乳酸及其制备方法
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申请号： US11658093申请日： 2005-07-20
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公开(公告)号： US08304490B2公开(公告)日： 2012-11-06
- 发明人: Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
- 申请人： Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
- 申请人地址： JP Osaka JP Tokyo JP Osaka JP Shiga
- 专利权人： Teijin Limited,Musashino Chemical Laboratory, Ltd,Mutual Corporation,Yoshiharu Kimura
- 当前专利权人： Teijin Limited,Musashino Chemical Laboratory, Ltd,Mutual Corporation,Yoshiharu Kimura
- 当前专利权人地址： JP Osaka JP Tokyo JP Osaka JP Shiga
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2004-214496 20040722; JP2004-230978 20040806; JP2004-252804 20040831; JP2004-378709 20041228
- 国际申请： PCT/JP2005/013672 WO 20050720
- 国际公布： WO2006/009285 WO 20060126
- 主分类号： C08G63/08
- IPC分类号： C08G63/08 ; C08G63/88 ; C08G63/06 ; C08L67/04
摘要：
It is an object of the present invention to provide polylactic acid containing a stereocomplex crystal and having excellent moldability, a high molecular weight, high crystallinity and a high melting point and a process for manufacturing the same. It is another object of the present invention to provide a composition comprising the polylactic acid and a molded product of the polylactic acid. The present invention is characterized from polylactic acid having a weight average molecular weight of 80,000 to 500,000 and a melting peak at 195° C. or higher which accounts for 80% or more of the total of melting peaks in the temperature elevation step when measured by a differential scanning calorimeter (DSC) and a process for manufacturing the same.
公开/授权文献
- US20080039579A1 Polyactic Acid and Manufacturing Process Thereof 公开/授权日：2008-02-14