Ethyl Corporation

Randall R Hopper

Garland E Raley

James M Adams

Robert R Pease

A method for embossing thermoplastic material and the thermoplastic material produced thereby. A transverse section of a continuous length of preformed thermoplastic film is heated by a nondirect contact heat source to raise the temperature of the film above its softening point. The film is then fed immediately between adjacent, counter-rotating embossing rollers, thereby embossing a raised pattern onto the film. The rollers are cooled to fix the embossed pattern on the film. The embossed film has good moduli, low surface gloss or light reflectance, deep embossed pattern, high tensile strength and high impact strength.

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Shelburn, IN, United States of America

Randall R Hopper