C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/79 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2533080
The invention relates to a process for preparing polyisocyanates having a high uretdione group content by phosphine-catalysed isocyanate oligomerization in the presence of organic carbonates and/or nitriles.
Halpaap Reinhard
Hecking Andreas
Laas Hans-Josef
Richter Frank
Bayer Materialscience Ag
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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