Method of manufacturing polymerizable composition for optical material and method of manufacturing optical material
AssigneeMitsui Chemicals, Inc.
InventorsNaoyuki Kakinuma, Koji Suesugi
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Abstract
A method of manufacturing a polymerizable composition for an optical material according to the present invention includes a step of mixing an iso(thio)cyanate compound (A1) and an organic coloring matter (B), so as to obtain a mixed solution a, a step of mixing the mixed solution a, an ultraviolet absorbing agent (D), and an iso(thio)cyanate compound (A2) which is identical to or different from the iso(thio)cyanate compound (A1), so as to obtain a mixed solution b, and a step of mixing a mixed solution b and an active hydrogen compound (C).
Claims9
A method of manufacturing a polymerizable composition for an optical material, comprising:
- a step of mixing an iso(thio)cyanate compound (A1) and an organic coloring matter (B) to obtain a mixed solution a;
- a step of mixing the mixed solution a, an ultraviolet absorbing agent (D), and an iso(thio)cyanate compound (A2) which is identical to or different from the iso(thio)cyanate compound (A1) to obtain a mixed solution b;
- and
- a step of mixing the mixed solution b and an active hydrogen compound (C).
Dependencies are inferred from the claim text.