Process and catalyst-inhibitor systems for preparing synthetic l

Details Process and catalyst-inhibitor systems for preparing synthetic l Process and catalyst-inhibitor systems for preparing synthetic l

1975-05-12

1976-06-08

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252428, 252429R, 252430, 252431R, 252431C, 252431N, 252431P, 252431L, C08G 6314

Patent

active

039621898

ABSTRACT:
Catalyst-inhibitor systems for the polymerization of poly(ethylene terephthalate) having excellent properties for fabrication of fibers and films. The catalyst-inhibitor systems comprise a combination of organic or inorganic salts of manganese and cobalt; titanium alkoxides; organic salts of alkali metals or alkaline earth metals; and a phosphate ester. This invention also is directed to an improved method of preparing synthetic linear polyesters utilizing the new catalyst-inhibitor systems.

REFERENCES:
patent: 2641592 (1953-06-01), Hofrichter
patent: 3372185 (1968-03-01), Hergenrother
patent: 3515700 (1970-06-01), Yokouchi et al.
patent: 3749697 (1973-07-01), Barkey
patent: 3849380 (1974-11-01), Jackson et al.
patent: 3907754 (1975-09-01), Tershany et al.
Matsumura, et al., Chemical Abstracts, vol. 79:147,024a (1973).
Sekawa, et al., Chemical Abstracts, vol. 78:44,274g (1973).

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