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1. 发明授权

US4438227A Composition and method of masking 失效
标题翻译：组合和掩蔽方法
公开(公告)号：US4438227A
公开(公告)日：1984-03-20
申请号：US432451
申请日：1982-10-04
申请人： James B. Nall , Jeffery J. King
发明人： James B. Nall , Jeffery J. King
IPC分类号： B05D1/32 , C09D101/18 , C08L1/18 , B05D5/00
CPC分类号： B05D1/32 , C09D101/18 , Y10S260/24 , Y10S524/905
摘要： A composition and method of application of the composition to produce masks of the type particularly useful in the manufacture of varnished electronic terminals and components is specified. The composition consists of mixing acetone, nitrocellulose, methyl isobutyl ketone (MIBK), arylsulfonamide formaldehyde resin, and tri (b-chloroethyl) phosphate, a fire retardant, under carefully controlled conditions. This masking product is applied, prior to the varnish, on an electronic part and is subjected to heating in the varnish curing oven to about 200.degree. F. whereupon the masking product will carbonize. The resulting carbonized coating is easily removed by brushing to produce a varnish mask where the masking product was applied.
摘要翻译：规定组合物的组合物和施用方法，用于生产特别可用于制造清漆电子终端和组分的类型的掩模。该组合物是在仔细控制的条件下混合丙酮，硝基纤维素，甲基异丁基酮（MIBK），芳基磺酰胺甲醛树脂和三（B-氯乙基）磷酸酯，一种阻燃剂。该掩蔽产品在清漆之前涂覆在电子部件上，并在清漆固化炉中加热至约200°F，于是掩蔽产物将碳化。通过刷涂容易地除去所得到的碳化涂层，以产生涂覆掩蔽产品的清漆掩模。

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