Alternating copolyestercarbonate resins

Details Alternating copolyestercarbonate resins Alternating copolyestercarbonate resins

1980-09-22

1982-11-23

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528173, 528191, C08G 6364

Patent

active

043606563

ABSTRACT:
Alternating copolyestercarbonate resins having repeating units of the formula: ##STR1## wherein R.sup.1 is para-phenylene; each R is independently an aromatic hydrocarbylene or inertly substituted aromatic hydrocarbylene, e.g., ##STR2## and x is a number from 0.05 to 0.65 exhibit physical properties such as heat resistance, clarity and impact strength that are superior to the comparable properties of corresponding random copolymers. Such resins are useful for making transparent tough films and molded articles having high heat resistance.

REFERENCES:
patent: 3169121 (1965-02-01), Goldberg
patent: 4156069 (1979-05-01), Prevorsek et al.

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