ORGANIC-INORGANIC HYBRID RESIN COMPOSITION, MANUFACTURING METHOD THEREOF AND MANUFACTURING METHOD OF OPTICAL FILM USING THE SAME

摘要

An organic and inorganic hybrid resin composition, its preparation method, and an organic and inorganic hybrid resin are provided to lower a coefficient of thermal expansion and to improve optical characteristic without the deterioration of the transparency of a film. An organic and inorganic hybrid resin composition comprises 5-90 wt% of a silica sol whose surface is modified with an epoxy functional group or an amine functional group; 10-90 wt% of a polycarbonate-based or epoxy-based polymer system; and a solvent. The silica sol is prepared by reacting a silane compound represented by the formula I, or a mixture of the silane compound represented by the formula I and a silane compound represented by the formula II, wherein at least one of R1, R2, R3 and R4 is an organic substituent having an epoxy group or an amine group, and the rest are independently OH or a C1-10 alkoxy group; and at least one of R5, R6, R7 and R8 is OH or a C1-10 alkoxy group, and the rest are independently a C1~10 alkyl group, a C6~20 arylene group, a C1~10 alkyl C6~20 arylene group or a C6~20 aryl C1~10 alkylene group.