| 摘要 |
<p>Disclosed is a curable composition for optical materials which comprises (A) an organic compound having a number-average molecular weight of 10,000 or lower and having, per molecule, at least two carbon-carbon double bonds reactive with an SiH group, (B) a polysiloxane compound which is obtained by reacting a di- or polyfunctional organic compound with a polysiloxane compound and which contains at least two SiH groups per molecule, (C) a hydrosilylation catalyst, and (D) a silicone compound which has a structure represented by the general formula R1 nSiO(4-n)/2 (wherein R1s may be the same or different and each represents a hydrogen atom or a C1-50 monovalent organic group optionally substituted by an oxygen, nitrogen, sulfur, or halogen atom, and n is an integer of 1-3) and which has, per molecule, at least two SiH groups and/or carbon-carbon double bonds reactive with an SiH group, the amount of the ingredient (D) being 0.005-10 parts by weight per 100 parts by weight of the sum of the ingredients (A) and (B).</p> |
