Method of making heat-resistant polyester by reacting with a N,N

Details Method of making heat-resistant polyester by reacting with a N,N Method of making heat-resistant polyester by reacting with a N,N

1984-03-20

1985-05-28

Phynes, Lucille M.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528288, 528297, C08G 6376

Patent

active

045201757

ABSTRACT:
This invention is a method of making heat-resistant polyester, the method being characterized by reacting the polyester consisting of the aromatic dicarboxylic acid and the glycol with 2-6 carbons with 0.1-5 wt % of the bifunctional epoxy compound expressed by the general formula ##STR1## (R is hydrocarbon group; it may be substituted) to reduce the amount of end carboxyl group to less than 15 g equivalents per 10.sup.6 g of the polymer.

REFERENCES:
patent: 4139521 (1979-02-01), Lazarus et al.
patent: 4459390 (1984-07-01), Arai et al.
patent: 4459391 (1984-07-01), Arai et al.
patent: 4459392 (1984-07-01), Arai et al.

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