Optical material of low specific gravity and excellent impact resistance, optical molding product using the optical material and manufacturing method thereof
申请人:NIPPON SHOKUBAI CO., LTD.
公开号:EP0430073A2
公开(公告)日:1991-06-05
The present invention discloses an optical material having excellent transparency, impact resistance and heat resistance and having a low specific gravity and a high refractive index comprising a resin obtained by radical polymerization of specific difunctional (meth)acrylate (A) and aromatic vinyl monomer (B) and, if necessary, polymerizable monomer (C) copolymerizable with the ingredients (A), or (B) or by radical polymerization of the ingredients (A), (B) and (C) under the presence of a radical polymerizable or not-radical polymerizable compound having alkoxysilyl group, epoxy group, alcoholic hydroxy group or carboxyl group in the molecule, an optical molding product comprising the optical material, as well as production process therefor. The optical molding product is utilized as for ophthalmic lenses or lenses for various kinds of optical equipments, prisms, optical fibers, optical waveguides and optical discs.
本发明公开了一种光学材料,该材料具有优异的透明度、抗冲击性和耐热性,并具有低比重和高折射率,该材料由特定的双官能团(甲基)丙烯酸酯(A)和芳香族乙烯基单体(B)以及必要时可与成分(A)共聚的可聚合单体(C)通过自由基聚合得到的树脂组成、或 (B),或在分子中含有烷氧基硅基、环氧基、醇羟基或羧基的可自由基聚合或不可自由基聚合化合物存在的情况下,通过自由基聚合成分 (A)、(B) 和 (C),得到包含该光学材料的光学成型产品及其生产工艺。光学模塑产品可用于制造眼科镜片或各种光学设备的镜片、棱镜、光纤、光波导和光盘。