Title:
METHOD FOR PRODUCING BENZOXAZINE COMPOUND-CONTAINING MIXTURE
Document Type and Number:
WIPO Patent Application WO/2022/004593
Kind Code:
A1
Abstract:
[Problem] To provide a method for producing a mixture containing a benzoxazine compound. The mixture has compatibility with other resins (and preferably epoxy compounds) and, when incorporated in a curable composition, can give a cured product having high heat resistance. [Solution] Provided is a method for producing a mixture containing a benzoxazine compound represented by formula (1), the method including a step for subjecting p-aminophenol, an aromatic primary monoamine compound, a bisphenol compound and a formaldehyde compound to a condensation reaction. In the condensation reaction step, the ratio (OH/NH2) of phenolic hydroxyl groups derived from the p-aminophenol and the bisphenol compound and amino groups derived from the p-aminophenol and the aromatic primary monoamine compound is 1.05/1-1.15/1.
Inventors:
MINAMI MASAKI (JP)
ONO HIDEKI (JP)
SAWADA RYOHTO (JP)
ONO HIDEKI (JP)
SAWADA RYOHTO (JP)
Application Number:
PCT/JP2021/024144
Publication Date:
January 06, 2022
Filing Date:
June 25, 2021
Export Citation:
Assignee:
ENEOS CORP (JP)
PREFERRED NETWORKS INC (JP)
PREFERRED NETWORKS INC (JP)
International Classes:
C07D265/16; C08G14/073
Domestic Patent References:
| WO2019240099A1 | 2019-12-19 |
Foreign References:
| CN101700705A | 2010-05-05 | |||
| CN106750289A | 2017-05-31 | |||
| JP2013060407A | 2013-04-04 | |||
| JP2017186265A | 2017-10-12 | |||
| JP2010235714A | 2010-10-21 |
Other References:
YU, F. ET AL.: "Synthesis of bis-imide type benzoxazine and thermal properties of its polymer", REGUXING SHUZHI, vol. 30, no. 4, 2015, pages 9 - 13, ISSN: 1002-7432
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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