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    WOOD PIGMENT COMPOSITIONS AND WOOD TREATMENT PROCESSES
    11.
    发明申请
    WOOD PIGMENT COMPOSITIONS AND WOOD TREATMENT PROCESSES 审中-公开

    公开(公告)号：US20190099913A1

    公开(公告)日：2019-04-04

    申请号：US16103387

    申请日：2018-08-14

    Applicant: Koppers Performance Chemicals Inc.

    Inventor： Md Sayful Islam ,  Jun Zhang

    IPC: B27K5/02 ,  B27K3/02 ,  B27K3/00 ,  B27K3/34 ,  B27K3/08

    Abstract: Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.

    Spray-on exterior coating compositions for wood treatment
    17.
    发明授权
    Spray-on exterior coating compositions for wood treatment 有权

    公开(公告)号：US11091654B2

    公开(公告)日：2021-08-17

    申请号：US15965410

    申请日：2018-04-27

    Applicant: Koppers Performance Chemicals Inc.

    Inventor： Min Kuang ,  Jun Zhang

    IPC: C09D5/18 ,  C09D175/02 ,  C08K5/00 ,  C08L75/02 ,  B05B7/04 ,  C09D175/12

    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.

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