Aromatic polyester from 1,3-bis(p-carboxyphenoxy)propane

Details Aromatic polyester from 1,3-bis(p-carboxyphenoxy)propane Aromatic polyester from 1,3-bis(p-carboxyphenoxy)propane

1989-11-02

1991-03-19

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528176, C08G 6300, C08G 6700, C08G 6900

Patent

active

050012150

ABSTRACT:
A process is described for producing shapable aromatic polyesters derived from 1,3-bis(p-carboxyphenoxy)propane (CPP) and a dihydric phenol comprising forming a mixed anhydride of CPP with a lower monocarboxylic acid containing at least 2 carbon atoms, e.g., acetic acid, and subsequently polymerizing said mixed anhydride with said dihydric phenol or a reactable diester of said dihydric phenol, to obtain said aromatic polyester. The process is capable of producing aromatic polyesters as described having a glass transition temperature of at least about 70.degree. C.

REFERENCES:
patent: 4296232 (1981-10-01), Maresca
patent: 4711911 (1987-12-01), Blount
patent: 4757128 (1988-07-01), Domb et al.
patent: 4769437 (1988-09-01), Blount
patent: 4845179 (1989-07-01), Towle et al.
J. E. McIntyre et al., Polymer: 30 (Apr. 1989), 732-738.
A. Fradet et al., Makromol. Chem. 88, 1233-1251, (1987).
K. W. Leong et al., Macramolecules, 20(4), 705-712.

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