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Show New Plastics Get More Remarkable All the Time While plastic cars and plastic houses "are certainly not for the immediate im-mediate future," Dr. J. J. Pyle, director di-rector of General Electric's plastics laboratory, declares, you may rest assured that In the next 10 years plastic products will find their way into your everyday life in ever-increasing numbers. Dr. Pyle mentioned a list of properties prop-erties available in plastic materials which runs the gamut: Materials so tough that they cannot can-not be broken with a hammer to others as brittle as sandstone; plastics plas-tics with greater transparency than glass to others that even X-rays have difficulty going through; materials ma-terials that are as soft as putty or rubber to others almost as hard as glass; certain plastics flow and distort dis-tort at temperatures considerably less than boiling water (212 degrees F.) whereas others will withstand temperatures as high as the melting point of aluminum alloys (1,300-1,400 degrees F.); certain compositions are among the best electrical insulators insula-tors and others are semiconductors; some plastics can be exposed to sunlight sun-light forever with no color change and others only for matters of minutes min-utes or hours. |