| 摘要 |
PURPOSE:To obtain an improved molding of good heat stability and low deformation, by irradiating a heterogeneous system consisting of a synthetic resin molding and a vinyl monomer with ultrasonic waves. CONSTITUTION:A heterogeneous system consisting of a synthetic resin molding and a vinyl monomer is irradiated with ultrasonic waves. Among the synthetic resins for producing the synthetic resin molding applied,polyvinyl chloride resin and polystyrene resin which have been used in various applications because of their particularly good moldability but have been somewhat lacking in functional property and durability are preferable since they are inexpensive, can be easily molded and are used generally. With respect to the shape of the synthetic resin molding applicable,sheets, films, plates, etc., are preferable since they can be uniformly irradiated with ultraviolet rays and can be produced continuously.
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