Patent (Patents)
Low-viscosity allophanates having actinically hardenable groups
Weikard, Jan; Detrembleur, Christophe; Grestza-Franz, Dorota et al.
2006
 

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Detrembleur C 2006 Patent EP 1634901 A1.pdf
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Abstract :
[en] A radiation-curing binder containing allophanate groups is prepared by reacting at =130[deg]C compound(s) containing uretdione groups with OH-functional compounds containing groups reacting with polymerization with ethylenically unsaturated compounds on exposure to actinic radiation, optionally other NCO-reactive compounds, in the presence of a catalyst comprising at least one zinc compound to form allophanate groups by opening the uretdione ring. Independent claims are also included for: (A) a coating composition comprising the radiation-curing binder(s) containing allophanate groups, optionally polyisocyanate(s) containing free or blocked isocyanate groups, which are free from groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation, optionally other compounds containing groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally contain free or blocked NCO groups, optionally one or more isocyanate-reactive compounds, initiator(s), and optionally solvents; and (B) a substrate coated with a coating obtained from the radiation-curing binder containing allophanate groups.
Disciplines :
Materials science & engineering
Chemistry
Inventor :
Weikard, Jan
Detrembleur, Christophe ;  Bayer AG
Grestza-Franz, Dorota
Richter, Frank
Fischer, Wolfgang
Schmitz, Jörg
Mundstock, Holger
Language :
German
Title (54) :
Low-viscosity allophanates having actinically hardenable groups
Publication date (43-45) :
15 March 2006
Filing date (22) :
27 August 2005
Patent/publication number (10-11) :
EP 1634901
Patent status (13) :
A
Priority number (30) :
DE200410043540 20040909
International classification (IPC) (51) :
C08G18/67; C08G18/78; C08G18/79; C08G18/81; C09D175/14; C09D175/16
European classification (ECLA) (52) :
C08G18/67B4; C08G18/78B4K; C08G18/79K; C08G18/81K3B2; C09D175/14; C09D175/16
Applicant (71) :
Bayer AG
Publication organism (19) :
EPO
Available on ORBi :
since 16 June 2011

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