Title:
(METH)ACRYLIC ACID ESTER COMPOUND HAVING ISOCYANATE GROUP, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/141002
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce the dialkylcarbamoyl chloride content of a (meth)acrylic acid ester compound having an isocyanate group. The present invention includes a method for producing a (meth)acrylic acid ester compound having an isocyanate group and having a dialkylcarbamoyl chloride content of 0.1 mass% or less, said method including a step (2) in which a predetermined compound (B) and a phosgene are brought into contact in the presence of an N-disubstituted formamide compound (A) to obtain a phosgene reaction product, and a step (3) in which the phosgene reaction product obtained in step (2) and a hydroxylamine hydrochloride compound are brought into contact to obtain a (meth)acrylic acid ester compound having a predetermined isocyanate group.
Inventors:
WAKABAYASHI TOMOMITSU (JP)
MAEDA YOSHIHIKO (JP)
MAEDA YOSHIHIKO (JP)
Application Number:
PCT/JP2021/000012
Publication Date:
July 15, 2021
Filing Date:
January 04, 2021
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C07C263/16; C07C263/10; C07C265/04; C07B61/00
Domestic Patent References:
| WO2018070541A1 | 2018-04-19 | |||
| WO2008143207A1 | 2008-11-27 |
Foreign References:
| JP2014062071A | 2014-04-10 | |||
| JP2013523881A | 2013-06-17 | |||
| CN104086458A | 2014-10-08 | |||
| CN102702028A | 2012-10-03 | |||
| JP2006232797A | 2006-09-07 | |||
| JP2016150922A | 2016-08-22 | |||
| JP2007055993A | 2007-03-08 | |||
| JP2006291188A | 2006-10-26 | |||
| JPH07278088A | 1995-10-24 | |||
| JPS545921A | 1979-01-17 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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