High flow urea-formaldehyde powders for particleboard and fiberboard manufacture
AssigneeGeorgia-Pacific Chemicals LLC
InventorsRobert A. Breyer, Tyler Krauth, John D. Cothran, Paul S. Baxter, Ashlee Cribb
Life of this patent
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Abstract
Particulate binder compositions made with amine-aldehyde resins and methods for making same are provided. The method for making the particulate binder composition can include spray-drying an amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1 to produce a particulate binder composition. The particulate binder composition can have a fusion diameter of about 35 mm to about 70 mm.
Claims20
A method for making a particulate binder composition, comprising:
- spray-drying an amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1 to produce a particulate binder composition, wherein the particulate binder composition has a fusion diameter of about 35 mm to about 70 mm.
A method for making a particulate binder composition, comprising:
- reacting an intermediate amine-aldehyde reaction product having a total aldehyde compound to total amine compound molar ratio of about 1.7:1 to about 1.8:1 with a first amine compound to produce a liquid amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1;
- agitating the liquid amine-aldehyde resin to produce an aerated mixture;
- and
- spray-drying the aerated mixture to produce the particulate binder composition, wherein the particulate binder composition has a fusion diameter of about 35 mm to about 70 mm.
A method for making a composite product, comprising:
- reacting an intermediate amine-aldehyde reaction product having a total aldehyde compound to total amine compound molar ratio of about 1.7:1 to about 1.8:1 with a first amine compound to produce a liquid amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1;
- agitating the liquid amine-aldehyde resin to produce an aerated mixture;
- spray-drying the aerated mixture to produce the particulate binder composition, wherein the particulate binder composition has a fusion diameter of about 35 mm to about 70 mm;
- combining the particulate binder composition with a plurality of lignocellulose substrates to form a curable mixture;
- and
- at least partially curing the curable mixture to produce a composite product.
Dependencies are inferred from the claim text.