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US 4,977,238 AGranted
Additives suitable for use in aminoplastic resins
AssigneeNorsolor
InventorsRoger Garrigue, Jack Lalo
Life of this patent
Estimating the term…
Abstract
Precondensates of urea and formaldehyde containing monomethylolacrylamidomethyleneurea are produced from pure acrylamidomethyleneurea and urea/formaldehyde precondensate or from the starting substances used for the manufacture of acrylamidomethyleneurea with formaldehyde. They are useful additives for aminoplastic resins, which in turn may be used as glue in the manufacture of chipboard sheets.
Claims10
An acrylic additive derived from urea, comprising precondensate of urea and formaldehyde containing monomethylolacrylamidomethyleneurea.
Dependencies are inferred from the claim text.