Non-crystalline, ethylenically unsaturated polyurethanes
OwnerMichael J. Dvorchak, Lanny D. Venham +2inventors
InventorsMichael J. Dvorchak, Lanny D. Venham, Scott A. Grace, Kevan E. Hudson
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Abstract
The present invention relates to ethylenically unsaturated polyurethanes which i) are substantially free from isocyanate groups, ii) are liquid at 25.degree. C., iii) have a total content of ethylenically unsaturated groups (calculated as C=C, MW 24) of 1 to 20% by weight and iv) contain the reaction product of 4-isocyanatomethyl-1,8-octamethylene diisocyanate (NTI) with a hydroxyalkyl (meth)acrylate. The present invention also relates to a one-component coating composition containing these ethylenically unsaturated polyurethanes.
Claims10
An ethylenically unsaturated polyurethane which
- i) is substantially free from isocyanate groups,
- ii) is liquid at 25.degree.C.,
- iii) has a total content of ethylenically unsaturated groups (calculated as C=C, MW 24) of 1 to 20% by weight and
- iv) comprises the reaction product of 4-isocyanatomethyl-1,8-octamethylene diisocyanate (NTI) with a hydroxyalkyl (meth)acrylate.
Dependencies are inferred from the claim text.