Title:
POLYMERIZATION OF LACTIC ACID AND POLYMERIZER
Document Type and Number:
Japanese Patent JP3471112
Kind Code:
B2
Abstract:
PURPOSE: To obtain an industrially feasible process and installation which effectively polymerizes the feedstock for polymerization mainly comprising lactides in the molten phase and gives a poly(lactic acid) or polylactate of high quality.
CONSTITUTION: The feedstock of lactide in tank 1 and the copolymerization components and additives in tanks 3 and 5 are fed into the melting mixer 7, and the molten mixture is fed to at least two reactors 10, 14 which are each quipped with stirrers and connected in series. The product which has completed the prescribed reactions is continuously discharged through the finisher 20 and the filter 22 to the outside of the polymerization system.
Inventors:
Masao Matsui
Eiichi Kozeki
Yasuhiro Fujii
Eiichi Kozeki
Yasuhiro Fujii
Application Number:
JP6048295A
Publication Date:
November 25, 2003
Filing Date:
March 20, 1995
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
Kanebo Co., Ltd.
Kanebo Co., Ltd.
International Classes:
C08G63/08; C08G63/78; C08L101/16; (IPC1-7): C08G63/78
Domestic Patent References:
| JP726001A | ||||
| JP7233245A |
Attorney, Agent or Firm:
Yusuke Hiraki (2 outside)
Yusuke Hiraki (3 outside)
Yusuke Hiraki (3 outside)
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