| 摘要 |
PROBLEM TO BE SOLVED: To provide a methacrylate crystal having excellent crystal surface washability and also having a low aspect ratio and a method of producing the methacrylate crystal. ! SOLUTION: A method of producing a methacrylate crystal is characterized by using a seed crystal with a long axis side crystal length of 7,000 μm or less and performing crystal growth operation at ΔT to have a crystal growth speed rate smaller than an aspect ratio of the seed crystal, and using a seed crystal with a long axis side crystal length of 7,000 μm or less and also performing crystal dissolution operation at the same time, where ΔT is the difference between a solid-liquid equilibrium temperature and a solution temperature. ! COPYRIGHT: (C)2015,JPO&INPIT |
