公开(公告)号：US5767212A

公开(公告)日：1998-06-16

申请号：US775794

申请日：1996-12-31

Applicant: Yuichiro Iguchi ,  Setsuo Baba ,  Koichiro Oka

Inventor： Yuichiro Iguchi ,  Setsuo Baba ,  Koichiro Oka

IPC: C08F2/02 ,  C08F20/38

CPC classification number: C08F20/38

Abstract: The present invention relates to a method of producing a sulfur-containing transparent polymer by polymerizing a composition containing a (metha)acrylate monomer having sulfur in its molecule, characterized by radical polymerization of a composition containing at least one compound selected from radical chain transfer compounds and radical trapping compounds in an amount of 0.1 to 7.0% by weight of the total amount of the composition. The polymer obtained by polymerization is less colored. The method can provide a polymer having a high total light transmittance, a high refractive index and a light weight and is hardly yellowed during use.

Abstract translation: 本发明涉及一种通过在其分子中聚合含有具有硫的（甲基）丙烯酸酯单体的组合物的组合物来生产含硫透明聚合物的方法，其特征在于包含至少一种选自自由基链转移化合物 和自由基捕获化合物，其量为组合物总量的0.1至7.0重量％。 通过聚合获得的聚合物较少着色。 该方法可以提供具有高总透光率，高折射率和轻重量的聚合物，并且在使用期间几乎不变黄。