Polyester process

Details Polyester process Polyester process

2000-03-10

2000-10-03

Acquah, Samuel A.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

528190, 528193, 528194, 528195, 528219, 528275, 528298, 528302, 528303, 528306, 528307, 528308, 5283086, 524777, 524779, 524788, 430106, 430107, 430114, G03G 900, C08G 6300

Patent

active

061270806

ABSTRACT:
A process for the preparation of an unsaturated polyester which comprises (i) reacting an organic diol with a cyclic akylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol, and (ii) optionally adding thereto a further amount of cyclic alkylene carbonate in the presence of a second catalyst, and (iii) subsequently polycondensing the resulting mixture with a dicarboxylic acid.

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patent: 5376494 (1994-12-01), Mahabadi et al.
patent: 5407772 (1995-04-01), Bayley et al.

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