PROCESS FOR THE PREPARATION OF MOULDING COMPOSITIONS FROM UNSATURATED POLYESTERS

A process for the preparation of thermally stable, high- temperature-resistant moulding compositions from unsaturated polyester resins which contain - preferably by modification using dicyclopentadiene - cyclopentene or cyclohexene groups. The moulding compositions are cured in a first step at tempe...

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Bibliographische Detailangaben
Hauptverfasser:	HOLOCH, JAN, DEMMLER, KURT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A process for the preparation of thermally stable, high- temperature-resistant moulding compositions from unsaturated polyester resins which contain - preferably by modification using dicyclopentadiene - cyclopentene or cyclohexene groups. The moulding compositions are cured in a first step at temperatures below 100 DEG C in the presence of free-radical formers which decompose at these temperatures, and subsequently post-cured at temperatures between 120 and 200 DEG C in the presence of free-radical formers whose half life period at 120 DEG C is greater than 30 minutes.