发明名称 |
PRODUCTION OF FLAME-RETARDING LAMINATE |
摘要 |
PURPOSE:To obtain the title laminate improved in flame retardancy, heat resistance and punching quality by impregnating paper bases with a specified resin varnish containing Sb2O5 and then impregnating them with a resin varnish containing a flame retardant. CONSTITUTION:A primary impregnation resin varnish (A) is obtained by dispersing Sb2O5 in a resin varnish obtained by dissolving a condensate of an alkylphenol-containing phenol with melamine in a solvent containing a volatile organic solvent (e.g. acetone) and water. A secondary impregnation hydrophobic resin varnish (B) is obtained by mixing a resin varnish such as phenolic resin or an epoxy resin with a flame retardant (e.g. tetrabromobisphenol A). Paper bases are impregnated with component A and then with component B and dried. The obtained resin-impregnated bases are laminated optionally together with metallic foils and press-molded. |
申请公布号 |
JPH02199133(A) |
申请公布日期 |
1990.08.07 |
申请号 |
JP19890018613 |
申请日期 |
1989.01.26 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
EZAKI YOSHIAKI;NEMOTO KAZUHIKO;OGAWA AKIHIKO |
分类号 |
B32B15/08;C08J5/10;C08J5/24;C08L61/06;C08L61/28;H05K1/03 |
主分类号 |
B32B15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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