公开(公告)号：US20230084211A1

公开(公告)日：2023-03-16

申请号：US17891905

申请日：2022-08-19

申请人： KANEKA CORPORATION

发明人： Samuel Kyran ,  Young Hoon Lim

IPC分类号： C08G12/08 ,  C08K7/02 ,  C08J11/16

摘要： A degradable resin composition comprising at least one benzoxazine group in a backbone or as an endcap and at least one cleavable covalent bond is provided. Also provided is a thermoset composition comprising a cured benzoxazine-based resin composition including at least one imine group. A degradable resin composition comprising at least one benzoxazine group in a backbone or an endcap, at least one acetal group, and at least one acrylate group is also provided. A method of recycling a resin composition includes providing a cured polymer resin composite which comprises a cured benzoxazine-based resin composition including at least one cleavable covalent bond, and fibers. The method then includes exposing the cured polymer resin composite to an acid, thereby cleaving the at least one cleavable covalent bond to produce a degraded polymer resin, and removing the fibers from the degraded polymer resin.

公开(公告)号：US11447655B2

公开(公告)日：2022-09-20

申请号：US16639010

申请日：2018-08-17

申请人： KANEKA CORPORATION ,  THE UNIVERSITY OF CONNECTICUT

发明人： Luyi Sun ,  Jingjing Liu ,  Songshan Zheng ,  Thomas D'Auria ,  Young Hoon Lim ,  Tianlei Zhou ,  Masaya Kotaki

IPC分类号： C09D129/04 ,  C09D7/61 ,  C23C14/18 ,  C23C14/34 ,  B05D1/00 ,  B05D1/02 ,  C08K3/34

摘要： Hybrid organic/inorganic coating compositions of nanometer thickness are described, where the organic layer is a clay-containing layer comprising a clay and a hydrophilic polymer and the inorganic layer is a metal-containing layer comprising a metal with a refractive index greater than 1.5, where the coating compositions allow for the generation and tenability of iridescent color through control of the coat thickness.

公开(公告)号：US20230365730A1

公开(公告)日：2023-11-16

申请号：US18026997

申请日：2021-09-30

申请人： KANEKA CORPORATION

发明人： Young Hoon Lim

IPC分类号： C08F222/40 ,  C08F234/02 ,  C08J5/24 ,  C07D413/14

CPC分类号： C08F222/406 ,  C07D413/14 ,  C08F234/02 ,  C08J5/24 ,  C08F2810/20

摘要： A benzoxazine resin composition is provided. The benzoxazine resin composition includes a benzoxazine resin that is a reaction product of an amine, a phenol, and an aldehyde. Either the amine is a diamine or the phenol is a bisphenol, and the benzoxazine resin has at least one nitrogen-containing crosslinking functional group or pyrocitric functional group. A method of preparing a benzoxazine resin composition is also provided. The method includes reacting an amine, a phenol, and an aldehyde at a temperature of above 60° C., for 1 h to 5 days to form a benzoxazine resin. The benzoxazine resin has at least one nitrogen-containing crosslinking functional group or pyrocitric functional group, and either the amine is a diamine or the phenol is a bisphenol. Also provided is a cured resin made from the benzoxazine resin composition.