VERFAHREN ZUR HERSTELLUNG VON UNGESAETTIGTEN POLYESTERHARZEN

In the prodn. of unsatd. polyester resins by polycondens. of the 2-naphthol-diene adduct (I) with maleic anhydride (IA) and dicarboxylic acid or their anhydrides with glycol and then copolymerisation with a crosslinking monomer, unsatd. polyester obtd. in known manner is first modified with diisocya...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	JEDLINSKI,ZBIGNIEW,DR...,GLEIWITZ, THOMALLA,BOGDAN,DR, JACH,JAN, KUBICA,STEFAN, JEDLINSKI,STANISLAW, PILAT,WLADYSLAW
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In the prodn. of unsatd. polyester resins by polycondens. of the 2-naphthol-diene adduct (I) with maleic anhydride (IA) and dicarboxylic acid or their anhydrides with glycol and then copolymerisation with a crosslinking monomer, unsatd. polyester obtd. in known manner is first modified with diisocyanate (II) and then crosslinked. Pref. (II) is an aliphatic diisocyanate of formula OCN-(CH2)n-NCO (with n = 2-10) or aromatic diisocyanate, e.g. 2,4-IDI and its isomers. (II) is added in an amt. of 0.5-5 wt.% w.r.t. the unsatd. polyester. Pref. a soln. of half the amt. of unsatd. polyester in styrene is treated with (II) and then the other half is added. The resin has increased chemical and thermal stability and good industrial properties.