Title of Invention

HIGHLY-PURIFIED1,3-BUTYLENE GLYCOL

Abstract High purity 1,3-butylene glycol obtained from acetaldol by a liquid phase hydrogen reduction method, by adding a base to crude 1,3-butylene glycol free of high-boiling material, heat treating the mixture and then distilling off 1,3-butylene glycol. In high performance liquid chromatography analysis under specified condition, each peak eluted in a relative time of 1,3-butylene as 1.0, has an absorbance of 0.02 or less at a measuring wavelength of 210 nm. This has no odor and shows less change with time.
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94-mum-2005-abstract(25-8-2008).pdf

94-mum-2005-abstract(complete)-(31-1-2005).pdf

94-mum-2005-abstract(granted)-(9-7-2009).pdf

94-mum-2005-cancelled page(27-7-2010).pdf

94-mum-2005-cancelled pages(25-8-2008).pdf

94-mum-2005-claims(complete)-(31-1-2005).pdf

94-mum-2005-claims(granted)-(9-7-2009).pdf

94-MUM-2005-CORRESPONDENCE 27-6-2008.pdf

94-mum-2005-correspondence(18-11-2009).pdf

94-MUM-2005-CORRESPONDENCE(19-12-2008).pdf

94-MUM-2005-CORRESPONDENCE(25-5-2009).pdf

94-mum-2005-correspondence(ipo)-(20-10-2009).pdf

94-mum-2005-correspondence(ipo)-(27-7-2010).pdf

94-mum-2005-description(complete)-(31-1-2005).pdf

94-mum-2005-description(granted)-(9-7-2009).pdf

94-mum-2005-drawing(9-7-2009).pdf

94-mum-2005-drawing(complete)-(31-1-2005).pdf

94-mum-2005-drawing(granted)-(9-7-2009).pdf

94-mum-2005-form 1(17-6-2005).pdf

94-mum-2005-form 1(25-8-2008).pdf

94-mum-2005-form 1(31-1-2005).pdf

94-mum-2005-form 13(25-5-2009).pdf

94-mum-2005-form 13(25-8-2008).pdf

94-mum-2005-form 18(5-7-2005).pdf

94-mum-2005-form 2(complete)-(31-1-2005).pdf

94-mum-2005-form 2(granted)-(9-7-2009).pdf

94-mum-2005-form 2(title page)-(complete)-(31-1-2005).pdf

94-mum-2005-form 2(title page)-(granted)-(9-7-2009).pdf

94-mum-2005-form 3(25-8-2008).pdf

94-mum-2005-form 3(31-1-2005).pdf

94-mum-2005-form 5(25-8-2008).pdf

94-mum-2005-form 5(31-1-2005).pdf

94-MUM-2005-OTHER DOCUMENT 27-6-2008.pdf

94-MUM-2005-PCT-ISA-210 27-6-2008.pdf

94-mum-2005-petition under rule 137(25-8-2008).pdf

94-mum-2005-petition under rule 138(17-6-2005).pdf

94-mum-2005-power of authority(25-8-2008).pdf

94-mum-2005-power of authority(5-8-2005).pdf

94-mum-2005-specification(amanded)-(25-8-2008).pdf


Patent Number 235622
Indian Patent Application Number 94/MUM/2005
PG Journal Number 30/2009
Publication Date 24-Jul-2009
Grant Date 09-Jul-2009
Date of Filing 31-Jan-2005
Name of Patentee DAICEL CHEMICAL INDUSTRIES LTD.
Applicant Address 1-BANCHI, TEPPO-CHO, SAKAI-SHI, OSAKA-FU
Inventors:
# Inventor's Name Inventor's Address
1 YASUO TSUJI OF KUBA 6-8-2, OHTAKE-SHI, HIROSHIMA-KEN
2 KUNIO TAGAWA SEKIGAHAMA 1-3-1, WAKI-CHO, KUGA-GUN, YAMAGUCHI-KEN
PCT International Classification Number B01J25/02
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA