The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2011
Filed:
Aug. 19, 2004
Toshiaki Matsuo, Hitachi, JP;
Takayuki Matsumoto, Hitachi, JP;
Naruyasu Okamoto, Tokyo, JP;
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Abstract
A polymerization processor synthesizes a high quality polymer from a raw material in a molten state. Lactide sent from an apparatus for supplying lactideis heated and molten in an apparatus for melting lactide, and a catalyst is added to the lactide in an apparatus for supplying a catalyst. The molten lactide is supplied through an apparatus for supplying lactideto a horizontal reaction tank, and flows by a head difference with a polymerization reaction proceeding. A discharged reaction solution is supplied to the upper part of a vertical reaction tank, and flows through the vertical reaction tankby gravity with the polymerization reaction proceeding. Thereafter, the reaction solution is transported to an apparatus for removing remaining lactide, where unreacted lactide is removed, and then the reaction solution is discharged.