This invention has the objective of providing monomer compositions with which polymers of a superior balance of various physical properties such as high oxygen permeability, high water content and a low modulus of elasticity can be obtained. It has the further objective of providing polymers and ophthalmic lenses comprised of said monomers.
It is a monomer composition in which three types of monomers specified by the values of Q = (mass of Si atoms in 1 molecule of monomer) / (molecular weight of the monomer) and of Z = (number of ether oxygens in 1 molecule of monomer) + (number of hydroxyl groups in 1 molecule of monomer) are combined in suitable weight ratios.
本发明的目的是提供一种单体组合物,利用这种单体组合物可以获得各种物理性能 (如高透氧性、高含
水量和低弹性模量)平衡极佳的聚合物。其进一步目标是提供由上述单体组成的聚合物和眼科镜片。
它是一种单体组合物,其中三种类型的单体按适当的重量比组合,其值分别为 Q=(1 个单体分子中 Si 原子的质量)/(单体分子量)和 Z=(1 个单体分子中醚氧原子的数量)+(1 个单体分子中羟基的数量)。