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Apeldoorn, Netherlands

Patent
Nuplex Resins B.V. | Date: 2014-04-07

The present invention relates to a crosslinkable composition crosslinkable by Real Michael Addition (RMA) reaction comprising a component with at least 2 activated unsaturated groups (hereafter referred to as the RMA acceptor groups) and a component with at least 2 acidic protons CH in activated methylene or methane groups (hereafter referred to as the RMA donor groups) which components can react to form a crosslinked network.


Patent
Nuplex Resins B.V. | Date: 2015-11-12

An RMA crosslinkable composition for making thick coating layers having at least one crosslinkable component comprising reactive components A and B each including at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (CH) in activated methylene or methine groups, and the at least 2 reactive groups of component B are activated unsaturated groups (CC), to achieve crosslinking by Real Michael Addition reaction, the composition further including a base catalyst (C), an XH group containing component (D) that is also a Michael addition donor reactable with component B under the action of catalyst C, wherein X is C, N, P, O or S and a sag control component (E). A crosslinkable composition is also disclosed for preparing thick coating layers having a dry thickness of at least 70 mu having a surface appearance and hardness of the resulting cured composition.


A crosslinkable composition including at least one crosslinkable component that is crosslinkable under the action of a base catalyst, a first carbonate salt according to a first formula as latent base crosslinking catalyst, and a second carbonate salt according to a second formula as potlife extender, wherein the second carbonate is present in an amount of at least 5 mole % and preferably at most 500 mole % relative to the molar amount of the first carbonate. Further disclosed are catalyst compositions composed of the first and second carbonate salts, to the use of the catalyst composition as base catalyst system in crosslinkable compositions and the crosslinkable compositions, in particular coating compositions comprising the catalyst composition.


Patent
Nuplex Resins B.V. | Date: 2012-11-13

The invention relates to a crosslinkable polymer binder comprising a polyurethane macromer and grafted thereon a vinyl polymer, to an aqueous dispersion comprising said crosslinkable polymer binder and to a process for the manufacture of said crosslinkable polymer binder and said aqueous dispersion thereof. The crosslinkable polymer binder can be used in coating compositions or adhesives.


Patent
Nuplex Resins B.V. | Date: 2016-01-07

An RMA crosslinkable composition for making thick coating layers having at least one crosslinkable component comprising reactive components A and B each including at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (CH) in activated methylene or methine groups, and the at least 2 reactive groups of component B are activated unsaturated groups (CC), to achieve crosslinking by Real Michael Addition reaction, the composition further including a base catalyst (C), an XH group containing component (D) that is also a Michael addition donor reactable with component B under the action of catalyst C, wherein X is C, N, P, O or S and a sag control component (E). A crosslinkable composition is also disclosed for preparing thick coating layers having a dry thickness of at least 70 mu having a surface appearance and hardness of the resulting cured composition.

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