Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1983-07-18
1985-08-27
Trousof, Natalie
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560 76, 568 9, C07C 6700, C07F 954
Patent
active
045379858
ABSTRACT:
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.
REFERENCES:
patent: 2612516 (1952-09-01), Heimsch et al.
patent: 3076020 (1963-01-01), Stilz et al.
patent: 3177208 (1965-04-01), Stilz et al.
patent: 4179578 (1979-12-01), Fleck et al.
Puskas Imre
Schmitt Marshall
Blumberg Gunar J.
Clarke Vera C.
Magidson William H.
McClain William T.
Standard Oil Company (Indiana)
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