Patent (Patents)
Radiation-curing binders and a process for their preparation
Weikard, Jan; Detrembleur, Christophe
2006
 

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Detrembleur C 2006 Patent CN 1746247 A.pdf
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Abstract :
[en] A binder is prepared by reacting isocyanate-functional compound(s) containing uretdione groups; compounds that contain isocyanate-reactive groups and contain groups that react with ethylenically unsaturated compounds; saturated, hydroxyl-containing compound(s); and a catalyst containing ammonium salts or phosphonium salts of aliphatic or cycloaliphatic carboxylic acids. Preparation of a binder containing allophanate groups, groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and optionally isocyanate (NCO)-reactive groups, which comprises reacting at 130[deg]C NCO-functional compound(s) containing uretdione groups; compounds that contain isocyanate-reactive groups and contain groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups); saturated, hydroxyl-containing compound(s), at least one of these compounds having an OH functionality of 2; and a catalyst containing one or more ammonium salts or phosphonium salts of aliphatic or cycloaliphatic carboxylic acids, the reaction hydroxyl-containing compounds taking place at least proportionally with the formation of allophanate groups. An independent claim is also included for a coating composition comprising: (1) binders; (2) optionally polyisocyanate(s) which contain free or blocked isocyanate groups and optionally contain groups which react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation; (3) optionally compounds other than the polyisocyanate(s) which contain groups which react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation and optionally contain NCO-reactive groups; (4) optionally isocyanate-reactive compound(s) which are free from groups which react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation; and (5) initiators.
Disciplines :
Chemistry
Materials science & engineering
Inventor :
Weikard, Jan
Detrembleur, Christophe ;  Bayer AG
Language :
Chinese
Title (54) :
Radiation-curing binders and a process for their preparation
Publication date (43-45) :
15 March 2006
Filing date (22) :
09 September 2005
Patent/publication number (10-11) :
CN 1746247
Patent status (13) :
A
Priority number (30) :
DE200410043538 20040909
International classification (IPC) (51) :
C09D4/02; C09J4/02
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) :
China
Available on ORBi :
since 16 June 2011

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