Celanese Gmbh

Other

William A Hoffman, Iii

John C Trebellas

Preston K Martin

A new composition of matter particularly useful as a diluent in ultraviolet coating compositions is disclosed, having the formulae : ##STR1## wherein R is --CH.sub.3 or --CH.sub.2 CH.sub.3, R' is hydrogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 halogenated alkyl, R' is hydrogen or methyl, and n is 1-4.

Diluents for ultraviolet coating compositions

A multi-colored illuminated display device whereby colors are constantly changing due to small variations of temperature in the air moving about a contoured sheet of encapsulated cholesteric phase liquid crystal-coated polymeric film situated in a clear, colorless chimney. The rear interior surface of the chimney is coated to prevent the transmission of light therethrough, thus enhancing the reflected colors on the viewing faces. A source of heat and light such as a light bulb is used at the base. The heat rises by convection assisted by louvres or a small low speed fan may be installed. Many colorful designs may be achieved by varying the shape of the liquid crystal sheel and the range of heat temperatures used.

Liquid crystal display device

Water soluble polyester coating compositions convertible to baked coatings characterized by chemical resistance, hardness and flexibility comprising a polyol component incorporating a minor proportion of pentaerythritol and a coupling agent constituted by phthalic anhydride. After neutralizing with a base the water soluble polyester can be interacted with a cross-linking agent, e.g., an aminoplast.

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N. Bergen, NJ, United States of America

William A Hoffman, Iii