Polycarbonate from dihydroxydiphenyl cycloalkane

Dihydroxydiphenyl cycloalkanes corresponding to the formula (I) in which R1 and R2 independently of one another represent hydrogen, halogen, C1-C8 alkyl, C5-C6 cycloalkyl, C6-C10 aryl and C7-C12 aralkyl, m is an integer of from 4 to 7, R3 and R4, individually selectable for each X, independently of...

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Bibliographische Detailangaben
Hauptverfasser:	FREITAG, DIETER, WEYMANS, GUENTHER, WALDENRATH, WERNER, SCHRADER, LUTZ, FRITSCH, KARL-HERBERT, WESTEPPE, UWE, CASSER, CARL, WULFF, CLAUS H
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	Dihydroxydiphenyl cycloalkanes corresponding to the formula (I) in which R1 and R2 independently of one another represent hydrogen, halogen, C1-C8 alkyl, C5-C6 cycloalkyl, C6-C10 aryl and C7-C12 aralkyl, m is an integer of from 4 to 7, R3 and R4, individually selectable for each X, independently of one another represent hydrogen or C1-C6 alkyl and X represents carbon with the proviso that, at at least one atom X, both R3 and R4 are alkyl, a process for their production, their use for the production of high molecular weight polycarbonates, the polycarbonates made from dihydroxydiphenyl cycloalkane of formula (I) and films made from these polycarbonates.