Invention Application
WO2015112098A1 PROCESS FOR MANUFACTURING LACTIDE FROM PLASTICS HAVING POLYLACTIC ACID
审中-公开
具有聚乳酸的塑料制造乳液的方法
- Patent Title: PROCESS FOR MANUFACTURING LACTIDE FROM PLASTICS HAVING POLYLACTIC ACID
- Patent Title (中): 具有聚乳酸的塑料制造乳液的方法
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Application No.: PCT/TH2014/000013Application Date: 2014-03-28
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Publication No.: WO2015112098A1Publication Date: 2015-07-30
- Inventor: THAMMONGKOL, Vivan , KAABBUATHONG, Narin , JUNKASEM, Jirawut , THANPITCHA, Tuspon , LORJAI, Parkpoom , KATEPETCH, Chaiyapruk
- Applicant: PTT PUBLIC COMPANY LIMITED
- Applicant Address: 555 Vibhavadi Rungsit Road Chatuchak, Bangkok 10900 TH
- Assignee: PTT PUBLIC COMPANY LIMITED
- Current Assignee: PTT PUBLIC COMPANY LIMITED
- Current Assignee Address: 555 Vibhavadi Rungsit Road Chatuchak, Bangkok 10900 TH
- Agency: CHANGCHUMNI, Manoon et al.
- Priority: TH1401000401 20140123
- Main IPC: C08J11/12
- IPC: C08J11/12 ; C08J11/14 ; C08J11/16 ; C08J11/24
Abstract:
A process for manufacturing lactide from plastics having polylactic acid (PLA-based plastics) comprises preparing PLA-based plastics, accelerating decomposition of polylactic acid in the plastics to provide low molecular weight polylactic acid, and thermal decomposing the low molecular weight polylactic acid to provide lactide. Also, the process further comprises minimizing size of the PLA-based plastics after the PLA-based plastics preparation step, and purifying lactide after thermal decomposing low molecular weight polylactic acid to provide lactide.
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