Decomposable plastics containing starch and preparaton method
Title：
Decomposable plastics containing starch and preparaton method
Application Number：
 200410008972
Application Date：
 2004/03/22
Announcement Date：
 2005/01/12
Pub. Date：
Publication Number：
 1563161
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C08L 3/02, C08L 29/04
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Yang Dongzhi, Hu Ping, Ye Herong
Key Words：
 Decomposable plastics, starch, preparaton method
Abstract：
 The plastic is mixture prepared from starch, poval, poly beta-hydroxybutyric acid ester or maleic anhydride grafted with poly beta-hydroxybutyric acid ester. The preparing method includes mixing starch in certain ratio with one or above materials of poval, poly beta-hydroxybutybic acid ester and said maleic anhydride, applying placticizer on the mixture and placing them in sealed bag at room temperature, taking out the material in bag and feeding it into extruder, and obtaining desired product through extruding, pelletizing and injection moulding.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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