Process for manufacturing unsaturated carboxylic acid...

Details Process for manufacturing unsaturated carboxylic acid... Process for manufacturing unsaturated carboxylic acid...

2005-08-30

2005-08-30

Shippen, Michael L. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid anhydrides

C562S894000

Reexamination Certificate

active

06936734

ABSTRACT:
The present invention relates to a process for preparing an unsaturated carboxylic acid anhydride by reacting an unsaturated carboxylic acid and a lower aliphatic carboxylic acid anhydride in the presence of a stabilizer and catalyst that contains a metal salt of an anionic organic compound which has at least one carboxyl group.

REFERENCES:
patent: 2319070 (1943-05-01), Lowe et al.
patent: 4781868 (1988-11-01), Langerbeins
patent: 4830789 (1989-05-01), Hinenoya et al.
patent: 4857239 (1989-08-01), Hurtel et al.
patent: 4874558 (1989-10-01), Fife et al.
patent: 35 44 765 (1987-06-01), None
patent: 863 141 (1941-03-01), None
patent: 2 592 040 (1987-06-01), None
patent: 612 790 (1948-11-01), None
patent: WO 95/32940 (1995-12-01), None
D. Plusquellec, et al., “A New Synthesis of Carboxylic and Carbonic Acid Anhydrides using Phase Transfer Reactions”, TETRAHEDRON, vol. 44, No. 9, pp 2471-2476, 1988.

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