Copolyester carbonate with cycloalkylphenyl end groups
AssigneeGeneral Electric Company
InventorsVictor Mark, deceased, legal representatives Ester H. Mark
Life of this patent
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Abstract
Thermoplastic aromatic polycarbonate containing the polymerized reaction products of (i) at least one dihydric phenol, (ii) a carbonate precursor, and (iii) at least one end-capping agent represented by the formula ##STR1## wherein: R is independently selected from alkyl radicals; Z is a cycloalkyl radical; and n is an integer having a value of from 0 to 4 inclusive.
Claims2
An aromatic copolyestercarbonate having an isophthalate group, a terephthalate group, or a mixture of isophthalate and terephthalate groups and containing at least one terminal group represented by the formula ##STR16## wherein R is independently selected from alkyl radicals;
- Z represents a cycloalkyl radical;
- and
- n is an integer having a value of from 0 to 4 inclusive.
Dependencies are inferred from the claim text.