Title of Invention

AZEOTROPIC DISTILLATION METHOD

Abstract An azeotropic distillation method, comprising a reaction step, a distillation step for separating and refining a reaction product, and a recovery step for collecting a reactant after the distillation step; wherein at least one component constituting the reactant in the reaction step can act as an entrainer for the azeotropic distillation in the distillation step; and a portion of the reactant capable of acting as the entrainer is supplied to the distillation step.
Full Text PLEASE SEE THE SPECIFICATION ATTACHED.

Documents:

1530-mumnp-2008-abstract(18-7-2008).pdf

1530-MUMNP-2008-ABSTRACT(GRANTED)-(26-9-2011).pdf

1530-MUMNP-2008-CANCELLED PAGES(21-10-2011).pdf

1530-mumnp-2008-claims(18-7-2008).pdf

1530-MUMNP-2008-CLAIMS(AMENDED)-(21-10-2010).pdf

1530-MUMNP-2008-CLAIMS(GRANTED)-(26-9-2011).pdf

1530-MUMNP-2008-CORRESPONDENCE(12-9-2011).pdf

1530-MUMNP-2008-CORRESPONDENCE(22-10-2008).pdf

1530-MUMNP-2008-CORRESPONDENCE(22-9-2010).pdf

1530-MUMNP-2008-CORRESPONDENCE(23-07-2008).pdf

1530-MUMNP-2008-CORRESPONDENCE(23-5-2011).pdf

1530-mumnp-2008-correspondence(23-7-2008).pdf

1530-MUMNP-2008-CORRESPONDENCE(29-8-2008).pdf

1530-MUMNP-2008-CORRESPONDENCE(IPO)-(26-9-2011).pdf

1530-mumnp-2008-description(complete)-(18-7-2008).pdf

1530-MUMNP-2008-DESCRIPTION(GRANTED)-(26-9-2011).pdf

1530-MUMNP-2008-DRAWING(GRANTED)-(26-9-2011).pdf

1530-mumnp-2008-form 1(18-7-2008).pdf

1530-mumnp-2008-form 13(22-9-2010).pdf

1530-MUMNP-2008-FORM 18(23-07-2008).pdf

1530-mumnp-2008-form 2(18-7-2008).pdf

1530-MUMNP-2008-FORM 2(GRANTED)-(26-9-2011).pdf

1530-mumnp-2008-form 2(title page)-(18-7-2008).pdf

1530-MUMNP-2008-FORM 2(TITLE PAGE)-(GRANTED)-(26-9-2011).pdf

1530-mumnp-2008-form 26(18-7-2008).pdf

1530-MUMNP-2008-FORM 26(22-9-2010).pdf

1530-MUMNP-2008-FORM 3(12-9-2011).pdf

1530-MUMNP-2008-FORM 3(18-7-2008).pdf

1530-MUMNP-2008-FORM 3(21-10-2010).pdf

1530-MUMNP-2008-FORM 3(22-10-2008).pdf

1530-MUMNP-2008-FORM 5(18-7-2008).pdf

1530-MUMNP-2008-OTHER DOCUMENT(21-10-2010).pdf

1530-MUMNP-2008-PETITION UNDER RULE 137(23-5-2011).pdf

1530-MUMNP-2008-REPLY TO EXAMINATION REPORT(21-10-2010).pdf

1530-MUMNP-2008-VERIFIED ENGLISH TRANSLATION(29-8-2008).pdf

1530-MUMNP-2008-WO INTERNATIONAL PUBLICATION REPORT(18-7-2008).pdf

1530-mumnp-2008-wo international publication report(23-7-2008).pdf

abstract1.jpg

Drawings.pdf

Form-1.pdf

Form-3.pdf

Form-5.pdf


Patent Number 249036
Indian Patent Application Number 1530/MUMNP/2008
PG Journal Number 39/2011
Publication Date 30-Sep-2011
Grant Date 26-Sep-2011
Date of Filing 18-Jul-2008
Name of Patentee SHOWA DENKO K.K.
Applicant Address 13-9 SHIBADAIMON 1-CHOME, MINATO-KU, TOKYO 105-8518
Inventors:
# Inventor's Name Inventor's Address
1 HIROSHI MARUTA c/o OITA COMPLEX PETROCHEMICALS SECTOR SHOWA DENKO K.K. 2 Oaza Nakanosu Oita-shi Oita 870-0189
2 CHIHIRO OTOGAWA c/o OITA COMPLEX PETROCHEMICALS SECTOR SHOWA DENKO K.K. 2 Oaza Nakanosu Oita-shi Oita 870-0189
PCT International Classification Number C07C29/82
PCT International Application Number PCT/JP2007/052169
PCT International Filing date 2007-02-01
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2006-026051 2006-02-02 Japan