Process for the solid state polycondensation of linear polyester

Details Process for the solid state polycondensation of linear polyester Process for the solid state polycondensation of linear polyester

1975-11-07

1978-01-17

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75T, C08K 720

Patent

active

040691942

ABSTRACT:
A separating or anticaking agent consisting of spherical glass particles having a diameter of 3 to 30.mu. is added to polyester resin granulates to prevent agglomeration during solid state polycondensation in a plug-flow reactor. Thin-walled articles formed from the end product are characterized by high strength, high transparency, crystal clear color, good gas impermeability and a smooth surface.

REFERENCES:
patent: 3305532 (1967-02-01), Middleburg et al.
patent: 3544523 (1970-12-01), Maxion
patent: 3583935 (1971-06-01), Weissermel et al.
patent: 3621074 (1971-11-01), Siggel et al.
patent: 3634359 (1972-01-01), Breitschaft et al.
patent: 3876608 (1975-04-01), Anderson et al.

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