Title:
METHOD FOR PRODUCING BLOCKED ISOCYANATE COMPOUND AND METHOD FOR PRODUCING ISOCYANATE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2023/106377
Kind Code:
A1
Abstract:
Provided is a method for producing a blocked isocyanate compound, the method comprising a reaction step of reacting a primary amine compound, a carbonic acid derivative, and a blocking agent by means of heat treatment in the presence of at least one compound selected from the group consisting of a secondary amine compound represented by general formula (I) and a tertiary amine compound represented by general formula (II) to obtain a blocked isocyanate compound. Also provided is a method for producing an isocyanate compound, the method comprising a reaction step of decomposing a blocked isocyanate compound into a blocking agent and an isocyanate compound by means of heat treatment in the presence of at least one compound selected from the group consisting of a secondary amine compound represented by general formula (I) and a tertiary amine compound represented by general formula (II) to obtain the isocyanate compound. [Chemical formula 1]
Inventors:
INADA HIROSHI (JP)
NAKAOKA KOICHI (JP)
ONISHI KAZUHIRO (JP)
NAKAOKA KOICHI (JP)
ONISHI KAZUHIRO (JP)
Application Number:
PCT/JP2022/045329
Publication Date:
June 15, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C07C263/04; C07C239/08; C07C265/14; C07C269/04; C07C269/08; C07C271/12; C07C271/24; C07C271/28; C07C271/44; C07C271/56; C07C271/58; C07C273/14; C07C275/06; C07C275/14; C07C275/18; C07C275/24; C07C275/26; C07C275/28
Domestic Patent References:
| WO2014157636A1 | 2014-10-02 | |||
| WO2008084824A1 | 2008-07-17 | |||
| WO2008120645A1 | 2008-10-09 |
Foreign References:
| JP2005320334A | 2005-11-17 | |||
| JPH03184947A | 1991-08-12 | |||
| US5728317A | 1998-03-17 | |||
| US3970680A | 1976-07-20 | |||
| JP2004217743A | 2004-08-05 | |||
| JP2011178994A | 2011-09-15 | |||
| JP2008127293A | 2008-06-05 | |||
| KR20150134964A | 2015-12-02 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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