Powder coatings containing oxirane groups beta to urethane or urea groups
AssigneeBASF SE
InventorsWalter H. Ohrbom, Timothy S. December
Life of this patent
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Abstract
A powder coating composition contains solid particulates of a mixture of a solid material having at least two epoxide groups, each beta to a urethane or urea group, and a solid crosslinker reactive with epoxide groups.
Claims17
A powder coating composition, comprising solid particulates of a mixture of a solid material having at least two epoxide groups, each beta to a urethane or urea group, and a solid crosslinker reactive with epoxide groups wherein the solid material having at least two epoxide groups, each beta to a urethane or urea group, is prepared by a process that includes a step of reacting an oligomeric or polymeric polyisocyanate with a member selected from the group consisting of glycidol, allyl amine, and allyl alcohol.
A powder coating composition, comprising solid particulates of a mixture of a solid material having at least two epoxide groups, each beta to a urethane or urea group, and a solid crosslinker reactive with epoxide groups and further comprising a second solid material having at least two epoxide groups, wherein said epoxide groups are not beta to urethane or urea groups.
Dependencies are inferred from the claim text.