Reference : Low viscosity allophanates containing actinically curable groups
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Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
Low viscosity allophanates containing actinically curable groups
Weikard, Jan [ > > ]
Detrembleur, Christophe mailto [> Bayer AG > > >]
Greszta-Frank, Dorota [ > > ]
Richter, Frank [ > > ]
Fischer, Wolfgang [ > > ]
Schmitz, Jörg [ > > ]
Mundstock, Holger [ > > ]
JP 2006097019
DE200410043540 20040909
Bayer AG
C08F299/06; C08G18/67; C09D175/14; C09D4/00
C08G18/67B4; C08G18/78B4K; C08G18/79K; C08G18/81K3B2; C09D175/14; C09D175/16
[en] PROBLEM TO BE SOLVED: To provide a process for producing a radiation-curing binder containing an allophanate group; and to provide the binder obtained by the process, and a coating composition containing the binder. ; SOLUTION: The process comprises reacting at a temperature of <=130[deg.]C (A) one or more compounds containing uretdione groups with (B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), (C) optionally NCO-reactive compounds other than (B) in the presence of (D) a catalyst containing at least one zinc compound to form allophanate groups by opening the uretdione ring.

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