Anti-graffiti coatings and method of graffiti removal
    8.
    发明授权
    Anti-graffiti coatings and method of graffiti removal 失效
    防涂鸦涂料和涂鸦方法

    公开(公告)号:US5773091A

    公开(公告)日:1998-06-30

    申请号:US680265

    申请日:1996-07-11

    摘要: A method for removing soiling and graffiti markings from a barrier coat previously formed on an underlying surface is provided, wherein the method preserves rather than sacrifices the barrier coat. The method includes applying a solvent system which includes at least one substantially non-toxic organic solvent such as 1-methyl-2-pyrrolidinone to an area of the barrier coat. A method is also provided to improve the resistance of a protective barrier coat to graffiti markings and other soiling over time and thereby facilitate any necessary cleaning of this barrier coat. The improvement in the case of wax coatings is achieved by including in the wax, at least one protective chemical agent selected from the group consisting of wax-soluble/water-insoluble UV light absorbers, wax-soluble/water-insoluble free-radical and peroxy-radical scavengers, and wax-soluble/water-insoluble wax antioxidants.

    摘要翻译: 提供了一种从先前形成在下表面上的屏障涂层去除污物和涂鸦标记的方法,其中该方法保留而不是牺牲阻挡涂层。 该方法包括将包含至少一种基本上无毒的有机溶剂如1-甲基-2-吡咯烷酮的溶剂体系施加到阻挡涂层的区域。 还提供了一种方法,以改善防护涂层对涂鸦标记和其他污渍随时间的阻力,从而促进对该阻隔涂层的任何必要的清洁。 通过在蜡中包含至少一种选自蜡溶性/水不溶性UV光吸收剂,蜡溶性/水不溶性自由基和 过氧自由基清除剂和蜡溶性/水不溶性蜡抗氧化剂。