Epoxy stabilization using metal nanoparticles and nitrogen-containing catalysts, and methods

    公开(公告)号:US11053348B2

    公开(公告)日:2021-07-06

    申请号:US16471885

    申请日:2018-02-08

    摘要: The present disclosure provides a curable, one-part epoxy/thiol resin composition. The composition comprises an epoxy/thiol resin mixture including: an epoxy resin component including an epoxy resin having at least two epoxide groups per molecule, a thiol component including a polythiol compound having at least two primary thiol groups, and a nitrogen-containing catalyst for the epoxy resin. The epoxy/thiol resin mixture further includes metal nanoparticles (e.g., silver nanoparticles, copper nanoparticles, or both), dispersed in the epoxy/thiol resin mixture. The present disclosure provides a method of curing a curable, one-part epoxy/thiol resin composition, including providing a curable, one-part epoxy/thiol resin composition and heating the composition to a temperature of at least 50° C.

    THERMAL INDICATOR, THERMAL INDICATING COMPOSITION AND THERMAL INDICATING STRUCTURE

    公开(公告)号:US20210095129A1

    公开(公告)日:2021-04-01

    申请号:US16498804

    申请日:2017-03-29

    摘要: A thermal indicator, a thermal indicating composition (1), as well as two kinds of thermal indicating structures (11) are disclosed. The thermal indicator comprises an organic solid material (2) having a melting point higher than ambient temperature and a dye (3) which contacts the organic solid material (2) and is capable of being dissolved in the organic solid material (2) when the thermal indicator is heated to the melting point of the organic solid material (2). The thermal indicator, the thermal indicating composition (1), as well as these two kinds of thermal indicating structures (1) have simple structures and can be manufactured by a simple process. Furthermore, the existence of the dye (3) in its crystalline state offers significant resistance to UV radiation in outdoor applications.