Title:
2-CYANOACRYLATE-PURIFYING METHOD
Document Type and Number:
WIPO Patent Application WO/2012/117977
Kind Code:
A1
Abstract:
Provided is a 2-cyanoacrylate-purifying method which can decolorize a 2-cyanoacrylate that has undergone discoloration and which can minimize the after discoloration of the resulting decolorized 2-cyanoacrylate. The 2-cyanoacrylate-purifying method includes: adding a specific aromatic polyhydroxyl compound to a 2-cyanoacrylate that has undergone discoloration; and after a lapse of 0.5 day or longer at 0 to 40°C, subjecting the resulting mixture to reduced-pressure distillation.
Inventors:
NAGAHAMA YOSHIO
NISHINO YUKINORI
YAMAMOTO HIROAKI
NISHINO YUKINORI
YAMAMOTO HIROAKI
Application Number:
PCT/JP2012/054642
Publication Date:
September 07, 2012
Filing Date:
February 24, 2012
Export Citation:
Assignee:
TAOKA CHEMICAL CO LTD (JP)
NAGAHAMA YOSHIO
NISHINO YUKINORI
YAMAMOTO HIROAKI
NAGAHAMA YOSHIO
NISHINO YUKINORI
YAMAMOTO HIROAKI
International Classes:
C07C253/34; C07C255/23; C09J4/04
Domestic Patent References:
| WO2004106284A1 | 2004-12-09 |
Foreign References:
| JPH04124168A | 1992-04-24 | |||
| JP2007126632A | 2007-05-24 | |||
| JP2010532810A | 2010-10-14 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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