Multifunctional allyl carbamates and coatings therefrom

   
   

Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.

Allyl carbamates worden onthuld. Allyl carbamates worden voorbereid door een reagerend isocyanaat met een allylic alcohol of alkoxylated allylic alcohol. De geschikte isocyanaat worden daarvan geselecteerd uit hexamethylenediisocyanate (HDI), HDI biuret, dimeer, HDI trimeer, HDI allophanate, isophoronediisocyanate (IPDI), IPDI trimeer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, en mengsels. Allyl carbamates hebben minstens twee allyl functionele groepen per molecule. Uv-geneesbaar en aan de lucht drogend deklagen die van allyl carbamates worden geformuleerd toon uitstekende chemische weerstand en fysieke eigenschappen.

 
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