Methods for making lignocellulose composite products with oxidative binders and complexed metal catalyst
AssigneeGeorgia-Pacific Chemicals LLC
InventorsBobby L. Williamson, Adam K. Sniady
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Abstract
In some examples, a method for making a composite product can include combining a plurality of lignocellulose substrates, one or more complexed metal catalysts, one or more complexing agents, and one or more oxidants to produce a lignocellulose binder mixture and heating the lignocellulose binder mixture to produce a composite product. The lignocellulose binder mixture can have a molar ratio of the complexing agent to the complexed metal catalyst of about 0.1 or greater.
Claims20
A method for making a composite product, comprising:
- combining a plurality of lignocellulose substrates, a complexed metal catalyst, a complexing agent, and an oxidant to produce a lignocellulose binder mixture, wherein the lignocellulose binder mixture has a molar ratio of the complexing agent to the complexed metal catalyst of about 0.1 or greater;
- and
- heating the lignocellulose binder mixture to produce the composite product.
A method for making a composite product, comprising:
- combining a plurality of lignocellulose substrates, a complexed metal catalyst, a complexing agent, a polyphenolic material, and an oxidant to produce a lignocellulose binder mixture, wherein the lignocellulose binder mixture has a molar ratio of the complexing agent to the complexed metal catalyst of about 0.1 or greater;
- maintaining the lignocellulose binder mixture at a temperature of less than 60° C. for at least 10 min;
- and subsequently
- heating the lignocellulose binder mixture to a temperature of at least 60° C. to produce the composite product.
A method for making a composite product, comprising:
- combining a plurality of lignocellulose substrates, a complexed metal catalyst, a complexing agent, an unsaturated compound, and an oxidant to produce a lignocellulose binder mixture, wherein the lignocellulose is a material that includes lignin and cellulose, hemicelluose, or a combination of cellulose and hemicelluloses, and wherein the lignocellulose binder mixture has a molar ratio of the complexing agent to the complexed metal catalyst of about 0.1 or greater, and wherein the unsaturated compound comprises dicyclopentadiene, ethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, diethylene glycol dimethacrylate, poly(ethylene glycol)diacrylate, poly(ethylene glycol)dimethacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, pentaerythritol triacrylate, an unsaturated polyester prepolymer, an unsaturated polyether prepolymer, an unsaturated polyamide prepolymer, an unsaturated polyurethane prepolymer, or any mixture thereof;
- and
- heating the lignocellulose binder mixture to produce the composite product.
Dependencies are inferred from the claim text.