Invention Grant
- Patent Title: Aliphatic polyester composition and method for producing the same
- Patent Title (中): 脂肪族聚酯组合物及其制造方法
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Application No.: US12308891Application Date: 2007-06-28
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Publication No.: US08003721B2Publication Date: 2011-08-23
- Inventor: Yoshinori Suzuki , Kazuyuki Yamane , Hiroyuki Sato , Takahiro Watanabe
- Applicant: Yoshinori Suzuki , Kazuyuki Yamane , Hiroyuki Sato , Takahiro Watanabe
- Applicant Address: JP Tokyo
- Assignee: Kureha Corporation
- Current Assignee: Kureha Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2006-188004 20060707
- International Application: PCT/JP2007/063014 WO 20070628
- International Announcement: WO2008/004490 WO 20080110
- Main IPC: C08K5/52
- IPC: C08K5/52 ; C08K5/5357 ; C08L67/04 ; C08G63/06
Abstract:
Polyglycolic acid and polylactic acid having a weight-average molecular weight of at most 50,000 are melt-kneaded in the presence of a thermal stabilizer to obtain a polyglycolic acid-based aliphatic polyester composition. The aliphatic polyester composition alleviates the too fast crystallizability of polyglycolic acid which has been problematic in forming or molding of polyglycolic acid alone or in combination with another thermoplastic resin, thus showing a crystallization speed which has been lowered and can be controlled in a wide range.
Public/Granted literature
- US20090275692A1 Alphatic polyester composition and method for producing the same Public/Granted day:2009-11-05
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