Thermosetting adhesives comprising a resin having azetidinium functional groups
AssigneeGeorgia-Pacific Chemicals LLC
InventorsPablo Dopico, Cornel Hagiopol, Jason Rivers, Richard Rammon
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Abstract
Thermosetting adhesives for use in e.g., particleboard or fiberboard, wherein the adhesives comprise a resin having azetidinium functional groups, can provide fast tack-building and curing, as well as ultimately excellent bonding characteristics. Preferably, the azetidinium-functional resin is formed from the reaction product of a polyamidoamine and epichlorohydrin.
Claims18
A composition for preparing wood composites, said composition comprising (1) a thermosetting adhesive comprising predominantly a resin having azetidinium functional groups;
- (2) a wood element selected from the group consisting of wood flakes, wood strands, wood particles, wood layers, and mixtures thereof;
- and (3) urea as a cross-linking additive.
A composition for preparing wood composites, said composition comprising (1) a thermosetting adhesive comprising predominantly a resin having azetidinium functional groups;
- (2) a wood element selected from the group consisting of wood flakes, wood strands, wood particles, wood layers, and mixtures thereof;
- and (3) urea as a cross-linking additive, wherein the thermosetting adhesive is substantially free of protein.
Dependencies are inferred from the claim text.