| 摘要 |
PURPOSE:To provide the subject compsn. giving a molding having a low cure shrinkage, a high dimensional accuracy, an excellent surface quality, and a high hardness, and to prepare the subject material and molding therefrom. CONSTITUTION:The objective compsn. is prepd. by compounding a satd. polyester having a number-average mol. wt. of 4,000 or higher and an acid value of 2-8mg KOH/g and prepd. by reacting a satd. dibasic acid component contg. at least 20mol% adipic acid with a satd. glycol component, and unsatd. polyester, and an ethylenically unsatd. monomer. The compsn. is formed into a sheet together with a fibrous reinforcement and both sides of the sheet are covered with a film, thus giving the objective material. A molding is prepd. by the compression molding of the material in a metal mold. |
