FI225674

A shaped polyurethane product having improved arc-resistance, current leakage properties and dimensional stability which adapt it to be used as an electrical insulator is made by shaping a reactive mixture containing A. A POLYISOCYANATE HAVING ONLY CYCLOALIPHATIC ISOCYANATO GROUPS, B. A POLYISOCYANA...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	EHRHARD F
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON CONDUCTORS ELECTRICITY INSULATORS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A shaped polyurethane product having improved arc-resistance, current leakage properties and dimensional stability which adapt it to be used as an electrical insulator is made by shaping a reactive mixture containing A. A POLYISOCYANATE HAVING ONLY CYCLOALIPHATIC ISOCYANATO GROUPS, B. A POLYISOCYANATE HAVING ONLY CYCLOALIPHATIC AND ALIPHATIC ISOCYANATO GROUPS, OR C. A MIXTURE OF (A) OR (B) WITH AN ALIPHATIC POLYISOCYANATE, WITH A POLYOL MIXTURE CONTAINING D. 5 TO 30 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE POLYOL MIXTURE OF A POLYOL OR POLYOL MIXTURE HAVING A MOLECULAR WEIGHT BELOW ABOUT 1000 IN WHICH THE HYDROXYL GROUPS ARE ONLY CYCLOALIPHATICALLY OR ALIPHATICALLY BOUND AND AT LEAST 50% THEREOF ARE CYCLOALIPHATICALLY BOUND; AND E. 70 TO 90 PERCENT BY WEIGHT OF A POLYOL OR POLYOL MIXTURE HAVING A MOLECULAR WEIGHT BELOW 1000 IN WHICH THE HYDROXYL GROUPS ARE SUBSTANTIALLY ALL ALIPHATICALLY BOUND.