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Polyurethane lens resin, plastic lens made of the resin and manufacturing method of the lens
Polyurethane lens resin, plastic lens made of the resin and manufacturing method of the lens
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机译:聚氨酯透镜树脂,由该树脂制成的塑料透镜及其制造方法
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摘要
Polyurethane base lens resins obtained by reacting one or more of sulfur-containing polyisocyanates compound with one or more of sulfur-containing polyols, and polyurethane base lenses comprising these resins are disclosed. A method for preparing polyurethane base lenses which comprises adding internal mold releasing agents to the mixture of the above polyisocyanates and polyols prior to casting polymerization is also disclosed.
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