Monsanto Company

Floyd B Erickson

Ross M Hedrick

James D Gabbert

James C Woodbrey

This invention relates to construction panels comprising metal-thermoplastic-metal laminates and a process for preparing same, said laminates possessing in combination critical service properties of low coefficient of linear thermal expansion, low inelastic ratio, and excellent flexural stiffness.

Metal-thermoplastic-metal laminates

This invention relates to construction panels comprising metal-thermoplastic-metal laminates and a process for preparing same, said laminates possessing in combination critical service properties of high heat distortion temperature, low coefficient of linear thermal expansion, low inelastic ratio, and lightness in weight.

This invention concerns a photoimaging procedure in which the image is characterized by a differential concentration of sulfate groups, depending upon the degree of light exposure, and is developable by selective absorption of dyes and other procedures. The sulfate groups can be obtained by SO.sub.2 treatment of hydroperoxy groups produced in a photooxidation imaging procedure.

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Webster Groves, MO, United States of America

Floyd B Erickson