Wood composite with water-repelling agent
AssigneeWeyerhaeuser NR Company
InventorsJack G. Winterowd, Travis E. Bjorkman, Erik M. Parker
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Abstract
The present disclosure includes a wood composite made from cellulosic particles, a binder, and a water-repelling agent. In some embodiments, the water repelling agent includes aliphatic compounds having a molecular distribution between about 16 and about 36 carbon atoms per molecule. In some embodiments, the water-repelling agent has an average molecular weight of about 220 to about 350 Daltons (solids portion). The water-repelling agent may be applied as a wax emulsion or in neat wax form. The present disclosure also relates to a method for manufacturing a wood composite as described above.
Claims20
A wood composite comprising:
- cellulosic particles;
- a binder;
- and
- a water-repelling agent, the water repelling agent comprising aliphatic compounds having a molecular distribution between about 16 and about 36 carbon atoms per molecule;
- wherein the water-repelling agent has a solids portion and an oil portion and the solids portion has an average molecular weight of about 220 to about 350 Daltons;
- and
- wherein the water-repelling agent has an oil content of less than about 3%.
A method for making a wood composite comprising:
- forming a wood composite formulation, the wood composite formulation comprising:
- cellulosic particles;
- a binder;
- and
- a water-repelling agent;
- and
- compressing the wood composite formulation under heat and pressure to form a wood composite;
- wherein the water-repelling agent comprises aliphatic compounds having a molecular distribution between about 16 and about 36 carbon atoms per molecule;
- and
- wherein the water-repelling agent has a solids component and an oil component and the solids component has an average molecular weight of about 220 to about 350 Daltons.
A water repelling-agent for a wood composite, the water-repelling agent comprising an alkane mixture having a molecular distribution between about 16 and about 36 carbon atoms per molecule;
- wherein the water-repelling agent has a solids component and an oil component and the solids component has an average molecular weight of about 220 to about 350 Daltons and an oil content of less than about 3%;
- and
- wherein the water-repelling agent has a melt point between about 18° C. and about 48° C.
Dependencies are inferred from the claim text.