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:
Feb. 04, 2020
Filed:
Jun. 13, 2019
Peking Puyuan Institute for Advanced Materials and Technology, Beijing, CN;
PEKING PUYUAN INST. FOR ADVANCED MATERIALS & TECH., Beijing, CN;
Abstract
A disk reactor for production of polycarbonate includes a cylinder provided with an end cover at each end. The cylinder is provided with a material inlet, a product outlet and a gas phase port thereon. The cylinder is provided with a driving shaft therein. The driving shaft is provided with plural disks at different spaces thereon. Each disk has slope different from each other. Each disk is provided with plural transverse blades and plural transverse scrapers thereon. A scraper blade is arranged between two disks and fixed on the driving shaft. Compared with the prior disk reactors, the disk reactor fully considers the change of melt viscosity in the polymerization process, simultaneously increases the mass transfer area of the reactor, has good film forming and surface renew performance and high light component removal efficiency, and can produce polycarbonate with high molecular weight and uniform quality.