Abstract: The heat deflection temperature of amorphous thermoformed polyethylene terephthalate is increased by removing absorbed and/or adsorbed water therefrom, as by heating in an oven, or by desiccation. Following drying, the material is kept in a desiccated storage vessel until time of use.

Abstract: This invention relates to a method and apparatus for the aseptic packaging of high acid food products. More specifically, the present invention is directed to a method whereby preformed barrier plastic containers are immersed in an aqueous sterilizing bath at a temperature ranging from 212.degree. F. to 140.degree. F. for a time interval ranging from one to sixty seconds, following which, after draining the sterilizing liquid therefrom, the containers are filled with presterilized high acid food product under essentially inert atmosphere conditions and thereafter closed in an inert atmosphere by sealing a sterile closure element thereto. Novel apparatus for automatically carrying out the method of the invention is also provided.

Abstract: Metal-modified para-substituted phenol-aldehyde novolak resins suitable for use in pressure sensitive manifolding systems are produced by melting and mixing together a para-substituted phenol-aldehyde resin and a metal alkanoate salt in the presence of an ammonium compound.

Abstract: This invention discloses novel pyrazoloxanthene compounds, useful as the color-formers or imaging sources in pressure-sensitive copy papers and in thermally-sensitive imaging papers, and a process for preparing these compounds.