Reference : Low viscosity allophanates containing actinically curable groups
Patent : Patent
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
Low viscosity allophanates containing actinically curable groups
Weikard, Jan [ > > ]
Detrembleur, Christophe mailto [> Bayer AG > > >]
Greszta-Franz, Dorota [ > > ]
Richter, Frank [ > > ]
Fischer, Wolfgang [ > > ]
Schmitz, Jörg [ > > ]
Mundstock, Holger [ > > ]
United States Patent
US 7902315
DE200410043540 20040909
Bayer AG
C08G18/22; C08G18/30; C08G18/67; C08G18/79; C08G18/80
C08G18/67B4; C08G18/78B4K; C08G18/79K; C08G18/81K3B2; C09D175/14; C09D175/16
[en] The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures 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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