Reference : Radiation-curing binders and a process for their preparation
Patent : Patent
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/93084
Radiation-curing binders and a process for their preparation
Chinese
Weikard, Jan [ > > ]
Detrembleur, Christophe mailto [> Bayer AG > > >]
15-Mar-2006
2005-09-09
China
CN 1746247
DE200410043538 20040909
A
China
Bayer AG
C09D4/02; C09J4/02
C08G18/67B4; C08G18/78B4K; C08G18/79K; C08G18/80B3D; C08G18/81K3B2; C09D175/14; C09D175/16
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[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.
Researchers
http://hdl.handle.net/2268/93084
http://worldwide.espacenet.com/publicationDetails/biblio?CC=CN&NR=1746247A&KC=A&FT=D&date=20060315&DB=EPODOC&locale=fr_be

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