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公开(公告)号:US20240034720A1
公开(公告)日:2024-02-01
申请号:US18256785
申请日:2021-12-07
IPC分类号: C07D265/16 , C08G65/34 , C08G73/02
CPC分类号: C07D265/16 , C08G65/34 , C08G73/0233 , C08G2650/50 , C08G2650/42 , C08G2650/66 , C08G2650/64
摘要: A process for producing a benzoxazine containing free aliphatic hydroxyl groups and monoester comprising the steps of: a) a reaction of a phenolic acid derivative with a monofunctional oligomer or molecule at a temperature of from 80° C. to 200° C., during 12 h-48 h, in a presence of a Bronsted type acid catalyst, resulting in a monophenol terminated oligomer or molecule and b) reaction of the monophenol terminated oligomer or molecule of step a) with a mixture of an amino-alcohol, a primary amine derivative and paraformaldehyde at a temperature range of from 80° C. to 100° C., from 1 h to 48 h, under stirring.
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公开(公告)号:US20240025867A1
公开(公告)日:2024-01-25
申请号:US18256804
申请日:2021-12-09
发明人: Pierre VERGE , Antoine ADJAOUD , Laura PUCHOT
IPC分类号: C07D265/16 , C08G73/02
CPC分类号: C07D265/16 , C08G73/0233
摘要: A process for producing a benzoxazine containing free aliphatic hydroxyl groups and monoester comprising the steps of: a) a reaction of a phenolic acid derivative with a monofunctional oligomer or molecule at a temperature of from 80° C. to 200° C., during 12 h-48 h, in a presence of a Bronsted type acid catalyst, resulting in a monophenol terminated oligomer or molecule and b) reaction of the monophenol terminated oligomer or molecule of step a) with a mixture of an amino-alcohol, a primary amine derivative and paraformaldehyde at a temperature range of from 80° C. to 100° C., from 1 h to 48 h, under stirring.
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公开(公告)号:US20230235122A1
公开(公告)日:2023-07-27
申请号:US18009787
申请日:2021-06-08
IPC分类号: C08G73/02 , C07D265/16
CPC分类号: C08G73/0233 , C07D265/16
摘要: An ester containing benzoxazine monomer and to a process for synthesizing the monomer and to vitrimers obtained through the polymerization of the ester containing benzoxazine monomer. Also, a use of the vitrimer as a reversible adhesive, sealant, coating or encapsulating systems for substrates selected from the group consisting of a metal, polymer, glass and ceramic material
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