Title:
THERMOPLASTIC STARCH, BIODEGRADABLE POLYESTER/STARCH COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/000421
Kind Code:
A9
Abstract:
A thermoplastic starch(TPS) comprises (in weight parts) 20-80 parts of starch, 5-40 parts of biodegradable polyester prepolymer, 0.01-10 parts of reaction active agent, 0.01-1.0 parts of catalyst deactivator, 0.01-1.0 parts of antioxidant, and 5-50 parts of auxiliary agent. The said prepolymer has a molecular weight of 10,000-100,000 Dalton,a viscosity range of 0.30-1.2 dL/g, which is measured by Ubbelohde viscosity method, and a melting point range of 60-180℃. The terminal reactive group content of the prepolymer is 1.0-20.0 meq/Kg, which is measured by an end group titration process. A polyester/starch composite material comprising the TPS and its preparation method are also provided.
Inventors:
HOU LIANLONG (CN)
Application Number:
PCT/CN2012/077750
Publication Date:
February 21, 2013
Filing Date:
June 28, 2012
Export Citation:
Assignee:
WUXI BIOELITE BIOLOG MATERIAL TECHNOLOGY CO LTD (CN)
HOU LIANLONG (CN)
HOU LIANLONG (CN)
International Classes:
C08G81/00; C08B31/00; C08G63/91; C08L67/00; C08L67/02; C08L67/04; C08L87/00
Attorney, Agent or Firm:
SHANGHAI ZHI XIN PATENT AGENT LTD. (Zhijun Building 1223 Xie Tu Rd., Xu Hui District, Shanghai 2, CN)
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