| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical plastic article for infrared communication, which has good dispersion of fine particles, and which is capable of presenting a white color by stably scattering and reflecting light in a visible light region. <P>SOLUTION: The method of manufacturing the optical plastic article is configured such that a vinyl copolymer (C) with a weight average molecular weight of >1,000 and <500,000 is applied in a urethane or allyl-based monomer, which is agitated and heat or photocured, and fine particles of microphase-separated structure with the dispersed vinyl copolymer (C) is formed in the cured material. The vinyl copolymer (C) is obtained by copolymerization between a vinyl monomer (A), which has a SP value with a difference of <3 to a SP value of the cured material of the urethane or allyl-based monomer and a molecular weight of not less than 180, of 5-45 wt.% and a vinyl monomer (B), which has a SP value with a difference of not less than 3 to the same of the above, of 10-95 wt.%. The external of particles being a compatible part is formed by using the component of the vinyl monomer (A), and the internal of particles being an incompatible part is formed by the component of the vinyl monomer (B). <P>COPYRIGHT: (C)2011,JPO&INPIT |
