Polyesteramide and process for preparing the same

Details Polyesteramide and process for preparing the same Polyesteramide and process for preparing the same

1983-07-15

1984-10-02

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528128, 528172, 528179, 528182, 528183, 528185, C08G 6944

Patent

active

044749368

ABSTRACT:
A polyesteramide having structural units of the general formula: ##STR1## wherein Ar is a bivalent aromatic group comprising at least 10% by mole of a group having the following formula: ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and each is methyl group or ethyl group, and structural units of the general formula: ##STR3## wherein R is a bivalent organic group. At least 10% by mole of a bifunctional phenol compound to be used is a tetraalkylbisphenol-F, and whereby the obtained polyesteramide has improved hydrolysis resistance and electric characteristic with an excellent heat resistance.

REFERENCES:
patent: 3272774 (1966-09-01), Moyer, Jr.
patent: 3575928 (1971-04-01), Lenz et al.
patent: 3859251 (1975-01-01), Kuhfuss et al.
patent: 4272625 (1981-06-01), McIntyre et al.

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