| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a prepolymer for an optical lens molding, in which time concerning a reserve polymerization reaction of a polymerizable composition is shortened, and which can manufacture an optical lens with sufficient productivity, and to provide a method of manufacturing an optical material lens. <P>SOLUTION: The method of manufacturing a prepolymer for optical lens molding is characterized in that a polymerizable composition is made to react removing a hydrogen sulfide gas, the polymerizable composition including: a compound (A) having two or more structures shown by General formula (1) in one molecule; an inorganic compound (B) having a sulfur atom and/or a selenium atom; and a compound (C) having two or more mercapto groups in one molecule. In the formula, R<SB POS="POST">1</SB>denotes a divalent 1-10C hydrocarbon group, and R<SB POS="POST">2</SB>, R<SB POS="POST">3</SB>and R<SB POS="POST">4</SB>each independently denote a 1-10C hydrocarbon group or hydrogen. <P>COPYRIGHT: (C)2012,JPO&INPIT |
