The present invention relates to a process for preparing plastic lenses having a high-refractive index comprising forming a mixture containing one or more of polyisocyanate compounds; one or more active hydrogen compounds selected from the group consisting of a polyol compound having no sulfur atom, a polyol compound having at least one sulfur atom, and a polythiol compound having at least one sulfur atom in addition to the sulfur atom contained in mercapto group and at least one internal releasing agent and then casting and polymerizing the mixture.
本发明涉及一种制备具有高折射率的塑料镜片的工艺,该工艺包括形成一种混合物,该混合物含有一种或多种多
异氰酸酯化合物;一种或多种活性氢化合物,该活性氢化合物选自以下组别:不含
硫原子的多元醇化合物、至少含一个
硫原子的多元醇化合物、除巯基所含的
硫原子外至少含一个
硫原子的聚
硫醇化合物;以及至少一种内部释放剂,然后浇铸和聚合该混合物。