| Title of Invention | CONTINUOUS PRODUCTION METHOD AND PRODUCTION APPARATUS OF AROMATIC POLYCARBONATE |
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| Abstract | A process by which two or more grades of aromatic polycarbonates are produced by the melting method without causing a switching loss or quality deterioration. The process for aromatic polycarbonate production comprises: feeding a molten mixture of raw materials comprising an aromatic dihydroxy compound and/or carbonic diester produced in the absence of a transesterification catalyst to two series of polycondensation steps, each series comprising three vertical reactors and one horizontal reactor which have been serially connected; and continuously and simultaneously conducting polycondensation in the presence of a transesterification catalyst. |
| Full Text | PLEASE SEE THE SPECIFICATION ATTACHED. |
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207-MUMNP-2009-ABSTRACT(23-1-2009).pdf
207-MUMNP-2009-ABSTRACT(24-8-2009).pdf
207-MUMNP-2009-ABSTRACT(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-CANCELLED PAGES(23-4-2012).pdf
207-MUMNP-2009-CHINA DOCUMENT(23-4-2012).pdf
207-MUMNP-2009-CLAIMS(23-1-2009).pdf
207-MUMNP-2009-CLAIMS(24-8-2009).pdf
207-MUMNP-2009-CLAIMS(AMENDED)-(23-4-2012).pdf
207-MUMNP-2009-CLAIMS(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-CORRESPONDENCE(17-7-2009).pdf
207-MUMNP-2009-CORRESPONDENCE(19-10-2009).pdf
207-MUMNP-2009-CORRESPONDENCE(2-3-2009).pdf
207-MUMNP-2009-CORRESPONDENCE(2-3-2012).pdf
207-MUMNP-2009-CORRESPONDENCE(24-8-2009).pdf
207-MUMNP-2009-CORRESPONDENCE(8-12-2009).pdf
207-MUMNP-2009-CORRESPONDENCE(IPO)-(5-6-2012).pdf
207-MUMNP-2009-DESCRIPTION(COMPLETE)-(23-1-2009).pdf
207-MUMNP-2009-DESCRIPTION(COMPLETE)-(24-8-2009).pdf
207-MUMNP-2009-DESCRIPTION(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-DRAWING(23-1-2009).pdf
207-MUMNP-2009-DRAWING(24-8-2009).pdf
207-MUMNP-2009-DRAWING(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-ENGLISH TRANSLATION(24-8-2009).pdf
207-MUMNP-2009-EP DOCUMENT(23-4-2012).pdf
207-MUMNP-2009-FORM 1(23-1-2009).pdf
207-MUMNP-2009-FORM 18(21-10-2009).pdf
207-MUMNP-2009-FORM 2(COMPLETE)-(23-1-2009).pdf
207-MUMNP-2009-FORM 2(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-FORM 2(TITLE PAGE)-(23-1-2009).pdf
207-MUMNP-2009-FORM 2(TITLE PAGE)-(GRANTED)-(5-6-2012).pdf
207-MUMNP-2009-FORM 26(2-3-2012).pdf
207-MUMNP-2009-FORM 26(23-4-2012).pdf
207-MUMNP-2009-FORM 3(17-7-2009).pdf
207-MUMNP-2009-FORM 3(2-3-2009).pdf
207-MUMNP-2009-FORM 3(23-1-2009).pdf
207-MUMNP-2009-FORM 3(23-4-2012).pdf
207-MUMNP-2009-FORM 5(23-1-2009).pdf
207-MUMNP-2009-FORM-3(2-3-2009).pdf
207-MUMNP-2009-GCC DOCUMENT(23-4-2012).pdf
207-MUMNP-2009-JAPANESE DOCUMENT(23-4-2012).pdf
207-MUMNP-2009-OTHER DOUCEMENT(24-8-2009).pdf
207-MUMNP-2009-PETITION UNDER RULE 137(8-12-2009).pdf
207-MUMNP-2009-REPLY TO EXAMINATION REPORT(23-4-2012).pdf
207-MUMNP-2009-RUSSIAN DOCUMENT(23-4-2012).pdf
207-MUMNP-2009-US DOCUMENT(23-4-2012).pdf
| Patent Number | 252858 | |||||||||||||||
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| Indian Patent Application Number | 207/MUMNP/2009 | |||||||||||||||
| PG Journal Number | 23/2012 | |||||||||||||||
| Publication Date | 08-Jun-2012 | |||||||||||||||
| Grant Date | 05-Jun-2012 | |||||||||||||||
| Date of Filing | 23-Jan-2009 | |||||||||||||||
| Name of Patentee | MITSUBISHI CHEMICAL CORPORATION | |||||||||||||||
| Applicant Address | 14-1 Shiba4-chome Minato-ku Tokyo 108-0014 Japan | |||||||||||||||
Inventors:
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| PCT International Classification Number | C08G64/30 | |||||||||||||||
| PCT International Application Number | PCT/JP2007/060463 | |||||||||||||||
| PCT International Filing date | 2007-05-22 | |||||||||||||||
PCT Conventions:
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