Copolymerizable photoinitiators for UV-crosslinkable adhesives

The invention relates to radically copolymerizable acetophenone or benzophenone derivatives, obtained by reaction of a) (meth)acrylic compounds exhibiting at least one isocyanate-reactive group [compounds a)] with b) compounds exhibiting at least two isocyanate groups [compounds b)] and c) acetophen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ERHARDT ULRICH, BRUCHMANN BERND, LADENBERGER VOLKER, BALZER WOLF-DIETER, MEYER HARALD, SCHUMACHER KARL-HEINZ
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to radically copolymerizable acetophenone or benzophenone derivatives, obtained by reaction of a) (meth)acrylic compounds exhibiting at least one isocyanate-reactive group [compounds a)] with b) compounds exhibiting at least two isocyanate groups [compounds b)] and c) acetophenone or benzophenone derivatives exhibiting at least one isocyanate-reactive group [compounds c)]. The invention also relates to copolymers that contain copolymerizable photoinitiators of the invention and to the use of said copolymers in UV-crosslinkable compositions, particularly hot-melt adhesives.