Alternating copolyestercarbonate resins

Details Alternating copolyestercarbonate resins Alternating copolyestercarbonate resins

1977-05-11

1978-08-08

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260463, C08G 6362

Patent

active

041056337

ABSTRACT:
Alternating copolyestercarbonate resins having repeating units of the formula: ##STR1## wherein each R is independently an aromatic hydrocarbylene or inertly substituted aromatic hydrocarbylene, e.g., ##STR2## exhibit physical properties such as heat and impact resistance that are superior to the heat and impact resistance of corresponding random copolymers. Such resins are useful for making transparent tough films and molded articles having high heat resistance.

REFERENCES:
patent: 3030331 (1962-04-01), Goldberg
patent: 3169121 (1965-02-01), Goldberg

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