POLYCARBONATES EXHIBITING IMPROVED HEAT RESISTANCE

Thermoplastic polymer exhibiting improved heat resistance comprised of the polymerized reaction products of (i) a carbonate precursor, and (ii) at least one dihydric phenol represented by the general formula wherein: R is independently selected from alkyl radicals; R, is independently selected from...

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Bibliographische Detailangaben
Hauptverfasser:	HEDGES, CHARLES VERNON, MARK, VICTOR
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Thermoplastic polymer exhibiting improved heat resistance comprised of the polymerized reaction products of (i) a carbonate precursor, and (ii) at least one dihydric phenol represented by the general formula wherein: R is independently selected from alkyl radicals; R, is independently selected from monovalent hydrocarbon radicals; X is selected from cycloalkylidene radicals containing from 8 to about 16 ring carbon atoms; each n is two; and m represents a whole number having a value of from 0 up to the number of replaceable hydrogen atoms present on X.