C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/78 (2006.01) C08G 63/08 (2006.01) C08J 3/20 (2006.01) C08L 101/16 (2006.01)
Patent
CA 2636884
A polylactic acid production apparatus including a horizontal reaction vessel not having any rotational axis continued along the direction of central axis line of rotational axes of agitation blades disposed in the vessel, which horizontal reaction vessel is provided with at least a reactant port opening and an exhaust vent; and a production process using the apparatus. A polylactic acid of high quality can be stably produced while removing any low- molecular substances contained in polylactic acid.
L~invention concerne un appareil destiné à la fabrication d~acide polylactique comprenant une cuve de réaction horizontale ne comportant aucun axe de rotation dans la direction de l~axe central des axes de rotation de lames d~agitation disposées dans la cuve, ladite cuve de réaction horizontale comprenant au moins un orifice d'introduction des réactifs et un orifice d'échappement ; ainsi qu~un procédé de fabrication utilisant l~appareil. Un acide polylactique de grande qualité peut être fabriqué de manière stable tout en éliminant toute substance de faible poids moléculaire contenue dans l~acide polylactique.
Katsuda Takeshi
Kurihara Hideshi
Nonokawa Ryuji
Ohashi Kenji
Suzuki Hirotaka
Borden Ladner Gervais Llp
Teijin Limited
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