Adhesion of a Composite Wooden Member by Grooving and Case Hardening Prior to Encapsulation
AssigneeGibbs Group Holdings, Inc.
InventorBarrie GIBBS
Life of this patent
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Abstract
Coating adhesion on wooden members, such as wooden railroad crossties, is improved through use of three surface-treating techniques prior to application of the coating. The first technique involves forming grooves on the surface of the wooden article, the second technique involves exposing the wooden article to heat to reduce the moisture content of the surface of the wooden article, and the third technique involves creating incisions on the surface of the wooden article to further promote adhesion. The techniques may be advantageously used together to further enhance coating adhesion.
Claims20
A method for making a coated wooden article having improved coating adhesion comprising:
- a) providing a wooden member having a surface;
- b) treating at least a portion of the surface of the wooden member to enhance adhesion of a subsequently-applied resinous coating;
- and
- c) coating at least a portion of the surface of the wooden member with a resinous coating to produce a coated wooden article resistant to separation of the wooden member and the resinous coating.
A coated wooden article having improved coating adhesion produced by a method comprising:
- a) providing a wooden member having a surface;
- b) treating at least a portion of the surface of the wooden member to enhance adhesion of a subsequently-applied resinous coating;
- and
- c) coating at least a portion of the surface of the wooden member with a resinous coating to produce a coated wooden article resistant to separation of the wooden member and the resinous coating.
A coated wooden railroad crosstie having improved coating adhesion produced by a method comprising:
- a) providing an wooden railroad crosstie having a surface and two ends;
- b) treating at least a portion of the surface of the wooden railroad crosstie to enhance adhesion of a subsequently-applied resinous coating;
- c) fixing an end cap to each end;
- and
- d) coating at least a portion of the surface of the wooden railroad crosstie with a resinous coating to produce a coated wooden article resistant to separation of the resinous coating from the wooden railroad crosstie.
Dependencies are inferred from the claim text.