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    • 42. 发明专利
    • Casting mold for poly(thio) urethane lens molding, and production method of poly(thio) urethane-based plastic lens
    • 聚四氟乙烯透镜成型模具和聚四氟乙烯基塑料镜片的生产方法
    • JP2014104738A
    • 2014-06-09
    • JP2012261890
    • 2012-11-30
    • Mitsui Chemicals Inc三井化学株式会社
    • RYU AKINORISEKI RYOICHIFUJII KAZUKI
    • B29C33/40
    • PROBLEM TO BE SOLVED: To provide a casting mold of poly(thio) urethane lens molding in which releasability, penetrability, and a white turbidness depression effect of a poly(thio) urethane lens are excellent, and white turbidness of a mold member after lens molding is suppressed.SOLUTION: A poly(thio) urethane lens casting mold 10 includes: a first mold member 12; a second mold member 14; spacers 16 that are disposed at a peripheral part 12b of the first mold member 12 and a peripheral part 14b of the second mold member 14, and that alienate a first face 12a and a second face 14a that counter by a prescribed distance; and a cavity 18 that is surrounded by the first mold member 12 and the second mold member 14 and the spacers 16 and forms the lens. At least one face of the first face 12a and the second face 14a comprises a polyolefin that is obtained by that at least one olefin selected from a 3-20C α-olefin is performed by (co)polymerization, and in which a glass transition point is at least 15°C.
    • 要解决的问题:提供一种聚(硫)聚氨酯透镜成型体的模具,其中聚(硫代)聚氨酯透镜的脱模性,穿透性和白浊混浊效果优异,并且透镜后的模具部件的白色混浊度 成型被抑制。解决方案:聚(硫代)聚氨酯透镜铸模10包括:第一模具构件12; 第二模具构件14; 间隔件16,其设置在第一模具构件12的周边部分12b和第二模具构件14的周边部分14b处,并且使与第一面12a和第二面14a相隔一定距离; 以及由第一模具构件12和第二模具构件14以及间隔件16包围并形成透镜的空腔18。 第一面12a和第二面14a的至少一个面包含通过由(共)聚合进行至少一种选自3-20℃的α-烯烃的烯烃获得的聚烯烃,其中玻璃化转变点 至少15°C。