Parkhurst Wendel & Rossi
Apparatus for automatically determining rate of plasticizer absorption of resin powder
 An apparatus for automatically determining the rate of plasticizer absorption of a powdery resin sample such as a vinyl chloride resin sample. The apparatus for automatically determining the rate of plasticizer absorption of a powdery resin sample is one in which the rate of plasticizer absorption is determined by treating, in a centrifugal separator 10, a powdery resin contained in an inspection container 2 together with an excess of a plasticizer, to remove from the powdery resin sample the excess plasticizer, and determining the amount of the plasticizer absorbed by and remaining in the powdery resin. The apparatus according to the present invention includes an electronic balance 3 for weighing out the powdery resin which is connected to an arithmetic circuit 61; an injection means 5 for injecting the plasticizer into the powdery resin; a disposal chute 6 for recovering the inspection container 2 already used in the weight-determination; and a suction device 7 for aspirating the plasticizer separated by and remaining in the centrifugal separator 10. The apparatus further includes a robot 4 for transferring the powdery resin contained in the inspection container 2 to the electronic balance 3, the plasticizer-injection means 5, the centrifugal separator 10 or the disposal chute 6; and a driving unit 15 for moving an aspiration port 9 of the suction device 7 up and down within the centrifugal separator 10. 
Shin-Etsu Chemical Co., Ltd.
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Mikio Yuji Takashi Masaru Hajime Hajime Hideo Keisuke
Kitai Nogami Chino Takeuchi Kitamura Yashiro Yoshikoshi Kato