CYCLIC UREA-FORMALDEHYDE PREPOLYMER-MODIFIED MELAMINE-CONTAINING RESINS, AND USE IN BINDERS FOR CELLULOSIC-BASED COMPOSITES

摘要

A melamine-containing resin modified with a cyclic urea prepolymer comprising urea, formaldehyde and ammonia or a primary amine. The prepolymer-modified melamine-containing resin provides useful binders alone, or when combined or coreacted with other resins. Products prepared with the binder include wood composites such as particleboard and medium density fiberboard.