Process for preparing polyester resin

Details Process for preparing polyester resin Process for preparing polyester resin

1971-04-02

1977-04-26

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260475P, C08G 6322

Patent

active

040200493

ABSTRACT:
The invention is a process for reacting organic dicarboxylic acid and glycol under pressure and at elevated temperature in the presence of low molecular weight polyester resin to produce low molecular weight polyester resin product which can be polymerized to high molecular weight polyester resin. The process can be operated batchwise or continuously.

REFERENCES:
patent: 2921051 (1960-01-01), Amborski et al.
patent: 3028366 (1962-04-01), Engle et al.
patent: 3050533 (1962-08-01), Munro et al.
patent: 3427287 (1969-02-01), Pengilly

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