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US 2006/0142433 A1Published application
Binding wood using a thermosetting adhesive composition comprising a protein-based component and a polymeric quaternary amine cure accelerant
AssigneeGeorgia-Pacific Resins, Inc.
InventorsJason Rivers, Brandi Johnson Griffin, Cornel Hagiopol, Robert Breyer, Winford Liles
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Abstract
Thermosetting adhesive compositions for use in e.g., particleboard or fiberboard, wherein the compositions comprise a blend of a protein-based component and a polymeric quaternary amine cure accelerant, can provide the fast tack-building and curing, as well as ultimately good bonding characteristics normally associated with synthetic resin compositions. Preferably, the polymeric quaternary amine cure accelerant is the reaction product of a polyamidoamine and epichlorohydrin.
Claims5
A method of making a wood composite, the method comprising:
- (a) supplying an amount of cellulosic material having an overall moisture content of between 4 and 10% by weight;
- (b) applying to the cellulosic material a polymeric quaternary amine cure accelerant in an amount of 1 to 8% by weight of the cellulosic material, said polymeric quaternary amine cure accelerant being supplied as an aqueous composition having a solids content of between 5 to 75% by weight
- (c) also applying to the cellulosic material a protein component in an amount of 1 to 8% by weight of the cellulosic material to yield a thermosetting cellulosic composition,
- (d) the cellulosic material, polymeric quaternary amine cure accelerant and protein component each being supplied in an amount such that Total Moisture Input per amount of cellulosic material is between 8 and 12% by weight, where the Total Moisture Input is defined as the sum of (1) a product of the overall % by weight moisture content of the cellulosic material and the amount of cellulosic material (2) a product of the polymeric quaternary amine cure accelerant % by weight moisture content and the amount of polymeric quaternary amine cure accelerant and (3) a product of the protein component % by weight moisture content and the amount of protein component and
- (e) consolidating said thermosetting cellulosic composition to yield said wood composite.
2 more elements
Dependencies are inferred from the claim text.