Copolymerizable photoinitiators for UV-crosslinkable adhesives

Details Copolymerizable photoinitiators for UV-crosslinkable adhesives Copolymerizable photoinitiators for UV-crosslinkable adhesives

2007-12-04

2007-12-04

Puttlitz, Karl (Department: 1621)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S271000, C526S317100

Reexamination Certificate

active

10492353

ABSTRACT:
The invention relates to radically copolymerizable acetophenone or benzophenone derivatives, which may be obtained by reacting a) acrylic or methacrylic compounds, which contain at least one isocyanate-reactive group [compounds a)], with b) compounds, which contain at least two isocyanate groups [compounds b)] and c) acetophenone or benzophenone derivatives, which contain at least one isocyanate-reactive group [compounds c)]. Said invention also relates to copolymers, which contain said copolymerizable photoinitiators, as well as to the use of said copolymers in UV-crosslinkable substances, in particular hot-melt pressure-sensitive adhesives.

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