SPRAY-ON EXTERIOR COATING COMPOSITIONS FOR WOOD TREATMENT

    公开(公告)号:US20190092949A1

    公开(公告)日:2019-03-28

    申请号:US15965410

    申请日:2018-04-27

    Inventor: Min Kuang Jun Zhang

    Abstract: Methods for spraying a coating composition, with or without a fire retardant, onto a wood product, and wood products produced by the methods are disclosed. The method comprises a two-component system comprising (i) one or more aliphatic isocyanate compounds; and (ii) one or more aliphatic amine compounds, and, optionally, one or more fire retardants which are stored separately and combined in a spray gun to form a mixture which is then sprayed onto the wood product to form an external coating on one or more surfaces of the wood product. Wood coated with the compositions disclosed herein have increased dimensional stability and are resistant to checking and/or splitting compared to untreated wood.

    SOLVENT-BORNE WOOD PRESERVATIVE COMPOSITIONS

    公开(公告)号:US20190084182A1

    公开(公告)日:2019-03-21

    申请号:US15933047

    申请日:2018-03-22

    Abstract: Wood preservative compositions comprising a particulate copper compound in a solvent carrier with low aromatic content. Particulate copper dispersions in this composition demonstrated superior stability, and wood treated with the composition is protected from attack by wood decay fungi and termites. The invention is also directed to wood preservative compositions comprising: (a.) a biodegradable organic solvent carrier selected from the group consisting of vegetable oil, renewable resource oil, and biodiesel; (b.) a dispersion of solid particles of a metal compound having a particle size between about 0.005 microns to about 10 microns; (c.) an organic biocide; and (d.) a dispersant; ratio of the dispersant to the metal compound is from about 1:500 to about 100:1 (wt/wt). The invention is also directed to compositions comprising penflufen and solvent carriers. The invention is also directed to methods of treating wood using the compositions, and wood treated with the disclosed compositions and methods.

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