Process for producing polyester resin composition

Details Process for producing polyester resin composition Process for producing polyester resin composition

1988-04-21

1990-02-06

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523348, 524423, 524425, 524430, 524432, 524447, 524451, 524604, 524605, C08K 336, C08K 334, C08K 330, C08K 326

Patent

active

048988979

ABSTRACT:
A process for producing a polyester resin composition containing at least 10 wt % of a white inorganic pigment dispersed in a polyester resin, which comprises kneading the polyester resin with the white inorganic pigment and thereafter subjecting the blend to a polycondensation reaction at a temperature ranging from the melting point of the polyester up to 300.degree. C. and at a reduced pressure of not higher than 5 Torr, is disclosed.

REFERENCES:
patent: 3275590 (1966-09-01), Thomas
patent: 3565852 (1971-02-01), Conix et al.
patent: 3575919 (1971-04-01), Busweiler et al.
patent: 3663499 (1972-05-01), Brinkmann
patent: 3663512 (1972-05-01), Uebee
patent: 3862084 (1975-01-01), Zandstra et al.

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