Patent (Patents)
Radiation-curing binders and a process for their preparation
Greszta-Franz, Dorota; Fischer, Wolfgang; Weikard, Jan et al.
2006
 

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Detrembleur C 2006 Patent CA 2518135 A1.pdf
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Abstract :
[en] The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing group s) and 3) optionally NCO-reactive groups, by reacting at temperatures .ltoreq. 130.degree.C A) one or more NCO-functional compounds containing uretdione groups wit h B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B ), at least one of these compounds having an OH functionality of .gtoreq. 2, in the presence of D) a catalyst containing one or more zinc compounds, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups. The present invention also relates to the binders obtained by the process of the invention.
Disciplines :
Chemistry
Materials science & engineering
Inventor :
Greszta-Franz, Dorota
Fischer, Wolfgang
Weikard, Jan
Detrembleur, Christophe ;  Bayer AG
Mundstock, Holger
Schmitz, Jörg
Language :
English
Title (54) :
Radiation-curing binders and a process for their preparation
Publication date (43-45) :
09 March 2006
Filing date (22) :
02 September 2005
Patent/publication number (10-11) :
CA 2518135
Patent status (13) :
A
Priority number (30) :
DE200410043538 20040909
International classification (IPC) (51) :
C07C275/60; C07C275/62; C08G18/78; C09D175/04
European classification (ECLA) (52) :
C08G18/67B4; C08G18/78B4K; C08G18/79K; C08G18/80B3D; C08G18/81K3B2; C09D175/14; C09D175/16
Applicant (71) :
Bayer AG
Publication organism (19) :
Canadian Intellectual Property Office
Available on ORBi :
since 28 June 2011

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