EPOXY COMPOUND HAVING ALKOXYSILYL GROUP, METHOD FOR PREPARING SAME, COMPOSITION COMPRISING SAME, CURED PRODUCT, AND USE THEREOF

摘要

The present invention relates to a novel epoxy compound having a spacer between a core and an alkoxysilyl group, a method for preparing the same, a composition comprising the same, a cured product, and a use thereof. The epoxy compound exhibits excellent heat-resistant characteristics, particularly a low coefficient of thermal expansion and a high glass transition temperature (which includes Tg-less which does not exhibit glass transition temperature), and an improved brittleness in a composite and/or excellent flame retardant characteristics in a cured product. The present invention provides: an epoxy compound having an alkoxysilyl group which has passed through a spacer group which has at least two epoxy groups, at least one alkoxysilyl group, and a predetermined number of hydrogen, hydroxy groups and/or alkenyl groups; a method for preparing the epoxy compound by means of a step of introducing a spacer group and an epoxy group and an alkoxysilylation step; a method for preparing the epoxy compound by means of a step of introducing a spacer group and an epoxy group, an alkenylation step and an alkoxysilylation step; a composition comprising the epoxy compound; and a cured product and a use thereof. The epoxy composition comprising an epoxy compound having an alkoxysilyl group which has passed through a spacer group according to the present invention exhibits enhanced heat-resistant characteristics, i.e. effects of reducing CTE, increasing glass transition temperature or exhibiting no glass transition temperature (hereinafter referred to as 'Tg less') in a composite. Furthermore, the epoxy composition exhibits improved brittleness. In addition, the cured product of the epoxy composition comprising the epoxy compound having an alkoxysilyl group which has passed through a spacer group according to the present invention exhibits excellent flame retardant characteristics due to introduction of the alkoxysilyl group.