首页>
外国专利>
NOVEL ISOCYANATE COMPOUND WITH AT LEAST TWO SULFUR ATOMS IN MOLECULES AND URETHANE RESIN WITH SULFUR FOR OPTICAL LENS CONTAINING ISOCYANATE COMPOUND
NOVEL ISOCYANATE COMPOUND WITH AT LEAST TWO SULFUR ATOMS IN MOLECULES AND URETHANE RESIN WITH SULFUR FOR OPTICAL LENS CONTAINING ISOCYANATE COMPOUND
展开▼
机译:新型异氰酸酯化合物,其分子中具有至少两个硫原子,而含异氰酸酯的光学透镜用氨基甲酸乙酯树脂与硫
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: Provided is a novel isocyanate compound with at least two sulfur atoms in molecules which is superior in refraction index and optical property so that it is useful for producing urethane resin which is widely used as optical materials for plastic lens. CONSTITUTION: The novel isocyanate compound with at least two sulfur atoms in molecules is represented by formula 1, wherein n is an integer of 1-2. The urethane resin with sulfur for the optical lens is prepared by mixing polythiol compound with at least two functional groups and the isocyanate compound represented by the formula 1 or mixtures of the isocyanate compound represented by the formula 1 and other isocyanate compounds.
展开▼