Patents Represented by Attorney Allen (Zhi Yang) Xue

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  • Method of making polylactic acid and its products
    Patent number: 8241545
    Abstract: The present disclosure provides a method for preparing polylactic acid and its products using a twin-screw extruder, comprising the step of mixing carbon dioxide adducts of carbene and lactide, and obtaining polylactic acid and its products via reactive extrusion using a twin-screw extruder.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 14, 2012
    Assignee: Nanjing Universty of Technology
    Inventors: Zhenjiang Li, Pingkai Ouyang, He Huang