OPEN-STRUCTURE POLYHEDRAL OLIGOMERIC SILSESQUIOXANE AND COMPOSITION COMPRISING SAME

摘要

The present invention relates to an open-structure polyhedral oligomeric silsesquioxane (POSS) and a composition comprising the same. More specifically, the present invention relates to a POSS having increased compatibility with resin due to the POSS being cross-linkable, and having improved transparency due to the POSS having a partial open-cage structure; and a composition comprising the POSS having excellent solubility with siloxane resins, heat-resistance, mechanical properties and encapsulation properties, and an improved cross-link density, light-transmitting properties, and gas-barrier properties, thereby being usable for the encapsulation of various optical elements, especially for the encapsulation of phototransparent electronic devices or thick films. In addition, the present invention also relates to a coating composition comprising the open-cage POSS which has outstanding flexibility and excellent hardness, thereby being effectively usable for buffering against external shocks and reinforcing durability.