公开(公告)号：US5439766A

公开(公告)日：1995-08-08

申请号：US976115

申请日：1992-11-13

申请人： Richard A. Day ,  Donald H. Glatzel ,  John R. Mertz ,  Joel L. Roth ,  David J. Russell ,  Logan L. Simpson

发明人： Richard A. Day ,  Donald H. Glatzel ,  John R. Mertz ,  Joel L. Roth ,  David J. Russell ,  Logan L. Simpson

IPC分类号： G03C1/725

CPC分类号： G03C1/725

摘要： According to the present invention, good image resolution of a cationically polymerized epoxy based coating, such as a solder mask or dielectric or etch resist, is provided by combining a cationically polymerized epoxy based coating with conventional epoxy glass substrates cured with a curing agent that does not produce basic reaction products. Preferably, the coating is photoimagable. The method for making the same is also provided. The coating material includes an epoxy resin system comprising between from about 10% to about 90%, preferably about 28% to about 57% by weight of a polyol epoxy resin, and from about 10% to about 90%, preferably about 43% to 72% by weight, of a brominated epoxy resin. Optionally, a polyepoxy resin or an epoxy creosol novolak resin is added to the resin system. The polyepoxy resin may be added from an effective amount up to less than 90% of the resin system; the epoxy creosol novolak may be added from an effective amount up to about 80 pph.

摘要翻译： 根据本发明，通过将阳离子聚合的环氧基涂层与用固化剂固化的常规环氧玻璃基底组合来提供阳离子聚合的环氧基涂层（例如焊料掩模或电介质或抗蚀剂）的良好图像分辨率， 不产生碱性反应产物。 优选地，涂层是可光成像的。 还提供了制造它们的方法。 涂料包括环氧树脂体系，其包含约10％至约90％，优选约28％至约57％重量的多元醇环氧树脂，以及约10％至约90％，优选约43％至 72重量％的溴化环氧树脂。 任选地，在树脂体系中加入聚环氧树脂或环氧酚醛清漆树脂。 聚环氧树脂可以从有效量添加到树脂体系的90％以下; 可以从高达约80pph的有效量加入环氧裂解酚醛清漆。