Process for producing an aromatic polyester composition

Details Process for producing an aromatic polyester composition Process for producing an aromatic polyester composition

1982-03-08

1983-11-08

Lee, Lester L.

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

Synthetic resins

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

525439, 525444, 528125, 528126, 528128, 528173, 528176, 528179, 528193, C08G 6360

Patent

active

044143656

ABSTRACT:
A process for producing an aromatic polyester composition, which is characterized in that in producing an aromatic polyester represented by the general formula A, ##STR1## (wherein X is an alkylene group having 1 to 4 carbon atoms, --O--, --SO.sub.2 --, --S--, or --CO--; m and n are each 0 or 1; the ratio of d to e is in the range of from 1:1 to 10:1; the ratio of e to f is in the range of from 9:10 to 10:9; and the substituents attached to the benzene ring are in para or meta position to one another), the polymerization is carried out by the method of bulk polymerization, using substantially no solvent, and in the presence of at least one polymer selected from the group consisting of polyalkylene terephthalates, polyphenylene sulfides, aromatic polysulfones, and aromatic polyesters represented by the general formula B, ##STR2## wherein (p+q) is in the range of from 10 to 100 and p/(p+q).gtoreq.0.8.

REFERENCES:
patent: 3742087 (1973-06-01), Nield
patent: 4189549 (1980-02-01), Matsunaga et al.
patent: 4276397 (1981-06-01), Froix
patent: 4316004 (1982-02-01), Imai et al.

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