Abstract: Provided are a process for efficiently producing a non-foamed molded body by impregnating an amorphous thermoplastic resin with 0.3 to 3.0% by mass of carbon dioxide and/or 0.05 to 1.0% by mass of nitrogen and then supplying the amorphous thermoplastic resin thus obtained which is impregnated with carbon dioxide and/or nitrogen to an uppermost stream part of a cylinder in an injection molding machine and molding it and a non-foamed molded body produced thereby.

Abstract: Provided are a process for efficiently producing a non-foamed molded body by impregnating an amorphous thermoplastic resin with 0.3 to 3.0% by mass of carbon dioxide and/or 0.05 to 1.0% by mass of nitrogen and then supplying the amorphous thermoplastic resin thus obtained which is impregnated with carbon dioxide and/or nitrogen to an uppermost stream part of a cylinder in an injection molding machine and molding it and a non-foamed molded body produced thereby.

Abstract: The present invention relates to a mechanism for moving and adjusting the loci of motions of a gripper adapted for seizing the work such as the product of a plastic molder or a sprue runner, etc. It is provided with an actuator, a turnover arm of which one end is connected to the rotary shaft of the actuator, while a gripper is linked to the other end, a noncircular pulley loosely fitted around the rotary shaft of the aforementioned actuator, a circular pulley mounted on the other end of the turnover arm through a shaft rod, a belt spanned between the noncircular pulley and the circular pulley, to be turned therearound, and a spring member which exhibits a maximum elastic rebounding force, when the turnover arm is brought to be realy horizontal.