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Laminating varnish composition containing a difunctional epoxy resin, a polyfunctional epoxy resin, a difunctional phenol and a polyfunctional phenol and a solvent
Laminating varnish composition containing a difunctional epoxy resin, a polyfunctional epoxy resin, a difunctional phenol and a polyfunctional phenol and a solvent
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机译:包含双官能环氧树脂,多官能环氧树脂,双官能苯酚和多官能苯酚以及溶剂的层压清漆组合物
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摘要
Electrical laminates are prepared from prepreg materials prepared by impregnating a substrate with a laminating varnish comprising a solvent solution of a curable composition comprising (A) a mixture of at least one epoxy resing having an average of more than 1 but not more than 2 vicinal epoxy groups per molecule and at least one epoxy resin having an average of more than 2 vicinal epoxy groups per molecule; (B) a mixture of at least one phenolic hydroxyl-containing compound having an average of more than 1 but not more than 2 phenolic hydroxyl groups per molecule and at least one phenolic hydroxyl-containing compound having an average of more than 2 phenolic hydroxyl groups per molecule; and (C) at least one catalyst for effecting the reaction between (A) and (B).
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