Title:
PRODUCTION METHOD FOR 2-CYANOACRYLATE COMPOUND AND PRODUCTION METHOD FOR PHOTOCURABLE ADHESIVE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/085335
Kind Code:
A1
Abstract:
This production method for a 2-cyanoacrylate compound includes: a depolymerization step for depolymerizing a 2-cyanoacrylate polycondensate that is a condensate of a cyanoacetic acid ester compound and a formaldehyde compound in the presence of a polymerization inhibitor and under heat and reduced pressure to obtain a crude 2-cyanoacrylate monomer; and a distillation purification step for distilling the crude 2-cyanoacrylate monomer to obtain a purified 2-cyanoacrylate monomer. The polymerization inhibitor used in the depolymerization step is a compound that does not have a hydroquinone structure.
Inventors:
ISHIZAKI KENICHI (JP)
OOMURA KENTO (JP)
ISSHIKI ERIKA (JP)
HORIE YOJI (JP)
OOMURA KENTO (JP)
ISSHIKI ERIKA (JP)
HORIE YOJI (JP)
Application Number:
PCT/JP2019/041400
Publication Date:
April 30, 2020
Filing Date:
October 21, 2019
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
International Classes:
C07C253/30; C07C255/23; C09J4/04; C09J11/06
Foreign References:
| CN101497767A | 2009-08-05 | |||
| CN102030681A | 2011-04-27 | |||
| CN102775328A | 2012-11-14 | |||
| US5455369A | 1995-10-03 | |||
| JPS3510309B1 | 1960-08-01 | |||
| JPH11100361A | 1999-04-13 | |||
| JPS5126813A | 1976-03-05 | |||
| JPH11292836A | 1999-10-26 | |||
| JP2001288157A | 2001-10-16 | |||
| JP2002193907A | 2002-07-10 | |||
| JPH09249708A | 1997-09-22 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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