Liquid oligomers containing unsaturation
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United States of America Patent
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Aug 31, 1999
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N/A
app pub date -
Sep 19, 1997
filing date -
Sep 19, 1997
priority date (Note) -
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Abstract
The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacetate vary from .gtoreq.1:1 to .gtoreq.13.2:1 depending on the functionality of both multifunctional acrylate and acetoacetate. Unuseable gelled or solid oligomer products occur below the claimed ranges. The liquid oligomers of this invention are further crosslinked to make coatings, laminates and adhesives.
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