Standard Oil Company (indiana)

Marshall Schmitt

Imre Puskas

A process for the manufacture of 1,4-bis[2-(4'-carbomethoxystyrenyl)] benzene is disclosed. This process comprises reacting, at a temperature of about 0.degree. C. to about 100.degree. C., in a highly polar anhydrous organic solvent or solvent mixture, or in liquid ammonia, a p-xylylene-bis-(trialkylphosphonium halide) or p-xylylene-bis-(triarylphosphonium halide) with 4-carbomethoxybenzaldehyde, initiated by the slow introduction of an organometallic compound or an inorganic base. Polyesters, such as polyethylene terephthalate, are copolymerized with about 5 to about 20 parts per million of 1,4-bis[2-(4'-carbomethoxystyrenyl)] benzene. 1,4-bis[2-(4'-carbomethoxystyrenyl)] benzene is useful to provide permanent whiteness to polyesters and polyamides and other synthetic or natural polymers. Polyesters are useful for the manufacture of fibers, films, and related industrial products.

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Chicago, IL, United States of America

Marshall Schmitt