| 摘要 |
PURPOSE:To produce a resin for molding an optical disc enhanced in heat resistance and hardness and decreased in water absorptivity, by radical- polymerizing a specified acrylic compound. CONSTITUTION:A compound of the formula (wherein R is H or CH3) is subjected to radical polymerization carried out either by adding a radical initiator such as an organic peroxide or an azo compound to an acrylic compound of the formula and curing the mixture by heating, or by adding a photosensitizer thereto and curing the mixture by irradiation with ultraviolet rays, electron beams, radiations or the like. Examples of said radical initiators include benzoyl peroxide and azobisisobutyronitrile, which is used preferably in an amount of 0.01-10pts.wt. per 100pts.wt. acrylic compound of the formula. |
