sell cyclobutane-1,2,3,4-tetracarboxylic dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride

cyclobutane-1,2,3,4-tetracarboxylic dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride CAS: 4415-87-6; Purity:99.9% cyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamine monomer are used for preparation a polyimide (PI), the type of polyimide has excellent electrical characteristics and optical type, with the material prepared the PI film, in addition to having a higher rate cast visible outside, and can withstand high temperatures thirty-four Baidu. Its performance is very good, is the preparation of a liquid crystal display with an ideal material for the film.