Process and apparatus for preparation of polyesters

Details Process and apparatus for preparation of polyesters Process and apparatus for preparation of polyesters

1986-09-05

1991-10-01

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

159 67, 159 131, 366287, 366288, 422225, 422229, C08F 200

Patent

active

050532014

ABSTRACT:
A process and apparatus for the preparation of a polyester, wherein a thin film polymerization apparatus having at least one columnar or cylindrical roller-shaped stirring vane rotating along and in close proximity to a substantially cylindrical vertical tank wall is used, and the stirring vane is caused to make an epicyclic movement along the tank wall in the circumferential direction thereof so that the direction of rotation is the same as the direction of revolution and a polyester-forming monomer and/or an oligomer thereof is dropped on the surface of the tank wall in the form of a thin film.

REFERENCES:
patent: 3362793 (1968-01-01), Massoubre
patent: 3407046 (1968-10-01), Massoubre
patent: 3746314 (1973-07-01), Nauta
patent: 4045185 (1977-08-01), Azemar et al.
patent: 4154920 (1979-05-01), Jabarin
patent: 4383888 (1983-05-01), Chino et al.

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