Preparation of new radiation-curing binders
First Claim
1. A process for preparing binders comprising reactingA) one or more NCO-functional compounds containing uretdione groups first withB) one or more compounds which contain groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed byC) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of ≧
- 2,D) in the presence of one or more compounds containing phenoxide groups, as catalysts, andE) optionally auxiliaries and additives,wherein the reaction with compounds of component C) proceeds at least proportionally with the formation of allophanate groups and wherein the binder contains allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups.
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Accused Products
Abstract
Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of≧2, D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, where the reaction with compounds of component C) proceeds at least proportionally with the formation of allophanate groups and where and including binders containing allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. The binders are used in coating compositions used to coat substrates.
55 Citations
13 Claims
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1. A process for preparing binders comprising reacting
A) one or more NCO-functional compounds containing uretdione groups first with B) one or more compounds which contain groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of ≧ - 2,
D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, wherein the reaction with compounds of component C) proceeds at least proportionally with the formation of allophanate groups and wherein the binder contains allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- 2,
Specification
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- Resources
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Current AssigneeAllnex Netherlands B.V. (Allnex (Luxembourg) & Cy SCA)
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Original AssigneeBayer Materialscience AG (Covestro AG)
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InventorsWeikard, Jan, Fischer, Wolfgang, Dètrembleur, Christophe, Mundstock, Holger, Schmitz, Jörg, Greszta-Franz, Dorota
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Primary Examiner(s)Berman; Susan W.
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Application NumberUS11/080,176Publication NumberTime in Patent Office1,177 DaysField of Search528/48, 528/65, 528/57, 522/90, 522/97US Class Current528/48CPC Class CodesC08G 18/166 Catalysts not provided for ...C08G 18/3206 aliphaticC08G 18/672 Esters of acrylic or alkyl ...C08G 18/7837 containing allophanate groupsC09D 175/16 having terminal carbon-to-c...
