Powdered resins with fillers

Patent metadata

Field	Value
Publication number	US-9834646-B2
Application number	US-201514870476-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Sep 30, 2011
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

Particulate binder compositions and methods for making and using same are provided. The binder composition for producing composite lignocellulose products can include an aldehyde based resin and a filler, an extender, or a combination thereof. The binder composition can be in the form of particulates. The particulates can each comprises the filler, the extender, or the combination thereof and the aldehyde based resin.

First claim

What is claimed is:

1. A binder composition for making a composite lignocellulose product, comprising:
a first plurality of particulates comprising an aldehyde based resin; and
about 0.5 wt % to 10 wt % of a second plurality of particulates, based on a combined weight of the first plurality of particulates and the second plurality of particulates, the second plurality of particulates having a different composition than the first plurality of particulates and comprising a filler, an extender, or a combination thereof, wherein:
the filler comprises a nut shell, a seed shell, a fruit pit, or any combination thereof, and
the extender comprises corn flour, soy flour, wheat flour, or any combination thereof.

2. The binder composition of claim 1 , wherein the aldehyde based resin comprises a urea-aldehyde resin, a melamine-aldehyde resin, a phenol-aldehyde resin, a resorcinol-aldehyde resin, or any mixture thereof.

3. The binder composition of claim 1 , wherein the aldehyde based resin comprises a phenol-formaldehyde resole resin.

4. The binder composition of claim 1 , wherein the aldehyde based resin comprises a phenol-formaldehyde resin having a molar ratio of formaldehyde to phenol of about 2.1:1 to about 2.65:1.

5. The binder composition of claim 1 , wherein the first plurality of particulates is free of the filler and the extender, and wherein the second plurality of particulates is free of the aldehyde based resin.

6. The binder composition of claim 1 , wherein the binder composition comprises about 1 wt % to 9 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates.

7. The binder composition of claim 1 , wherein the second plurality of particulates comprises the filler, and wherein the filler comprises pecan shell, peanut shell, wheat shell, almond shell, walnut shell, corn husk, or any combination thereof.

8. The binder composition of claim 1 , wherein the second plurality of particulates comprises the extender, and wherein the extender comprises corn flour, wheat flour, or a combination thereof.

9. The binder composition of claim 1 , wherein the second plurality of particulates comprises the filler and the extender, and wherein the filler comprises pecan shell, peanut shell, wheat shell, almond shell, walnut shell, corn husk, or any combination thereof.

10. The binder composition of claim 1 , wherein:
the aldehyde based resin comprises a phenol-formaldehyde resin having a molar ratio of formaldehyde to phenol of about 2.1:1 to about 2.65:1,
the filler, if present, comprises pecan shell, peanut shell, wheat shell, almond shell, walnut shell, corn husk, or any combination thereof, and
the extender, if present, comprises corn flour.

11. The binder composition of claim 1 , wherein:
the binder composition comprises about 1 wt % to 9 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates,
the aldehyde based resin comprises a phenol-formaldehyde resin having a molar ratio of formaldehyde to phenol of about 1.8:1 to about 2.65:1, and
the second plurality of particulates comprises the filler, wherein the filler comprises pecan shell, peanut shell, or a combination thereof.

12. A binder composition for making a composite lignocellulose product, comprising:
a first plurality of particulates comprising a phenol-formaldehyde resole resin; and
about 0.5 wt % to about 30 wt % of a second plurality of particulates, based on a combined weight of the first plurality of particulates and the second plurality of particulates, the second plurality of particulates having a different composition than the first plurality of particulates and comprising an extender, wherein the extender comprises corn flour, soy flour, wheat flour, or any combination thereof.

13. The binder composition of claim 12 , wherein the extender comprises corn flour.

14. The binder composition of claim 12 , wherein the binder composition comprises about 1 wt % to about 16 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates.

15. The binder composition of claim 12 , wherein the binder composition comprises about 1 wt % to 10 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates.

16. The binder composition of claim 12 , wherein the binder composition comprises about 1 wt % to about 16 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates, and wherein the extender comprises corn flour.

17. The binder composition of claim 12 , wherein the second plurality of particulates further comprises a filler, and wherein the filler comprises a nut shell, a seed shell, a fruit pit, or any combination thereof.

18. The binder composition of claim 12 , wherein the first plurality of particulates is free of the extender, and wherein the second plurality of particulates is free of the phenol-formaldehyde resole resin.

19. A method for making a composite lignocellulose product, comprising:
contacting a plurality of lignocellulose substrates with a particulate binder composition comprising a first plurality of particulates and a second plurality of particulates to produce a furnish, wherein:
the binder composition comprises about 0.5 wt % to 10 wt % of the second plurality of particulates, based on a combined weight of the first plurality of particulates and the second plurality of particulates,
the first plurality of particulates comprises an aldehyde based resin, and
the second plurality of particulates has a different composition than the first plurality of particulates and comprises a filler, an extender, or a combination thereof, wherein:
the filler comprises a nut shell, a seed shell, a fruit pit, or any combination thereof, and
the extender comprises corn flour, soy flour, wheat flour, or any combination thereof; and

at least partially curing the binder composition in the furnish to produce a composite lignocellulose product.

20. The method of claim 19 , wherein:
the aldehyde based resin comprises a phenol-formaldehyde resin having a molar ratio of formaldehyde to phenol of about 1.8:1 to about 2.65:1,
the second plurality of particulates comprises the filler and the filler comprises pecan shell, peanut shell, wheat shell, almond shell, walnut shell, corn husk, or any combination thereof, and
the composite lignocellulose product is a particleboard, a fiberboard, a plywood, an oriented strand board, or a laminated veneer board.

21. The method of claim 19 , wherein:
the binder composition comprises about 1 wt % to 9 wt % of the second plurality of particulates, based on the combined weight of the first plurality of particulates and the second plurality of particulates,
the aldehyde based resin comprises a phenol-formaldehyde resin having a molar ratio of formaldehyde to phenol of about 2.1:1 to about 2.65:1,
the filler, if present, comprises pecan shell, peanut shell, wheat shell, almond shell, walnut shell, corn husk, or any combination thereof, and
the extender, if present, comprises corn flour.

22. The method of claim 19 , wherein the first plurality of particulates is free of the extender, and wherein the second p

Assignees

• Georgia Pacific Chemicals Llc

Inventors

• Baxter Paul S
• Fowler Raymond D
• Cothran John D
• Bunn Aubra K

Classifications

• C08J2397/02

  Lignocellulosic material, e.g. wood, straw or bagasse · CPC title

• C09J161/06

  of aldehydes with phenols · CPC title

• C08K3/346

  Clay · CPC title

• C08L61/06

  of aldehydes with phenols · CPC title

• C08K2201/005

  Additives being defined by their particle size in general · CPC title