RESIN COMPOSITION FOR LAMINATE
PURPOSE:The titled resin composition providing a cured material having extremely low change of color by heating in a gas, obtained by adding a high ortho-phenol formaldehyde resin as a curing agent to an epoxy compound. CONSTITUTION:(A) An epoxy compound having two or more epoxy groups in a molecule...
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| creator | YOSHIMURA YUKIO YASUZAWA KOUHEI IWABUCHI SHINJI |
| description | PURPOSE:The titled resin composition providing a cured material having extremely low change of color by heating in a gas, obtained by adding a high ortho-phenol formaldehyde resin as a curing agent to an epoxy compound. CONSTITUTION:(A) An epoxy compound having two or more epoxy groups in a molecule is blended with (B) a high ortho-phenol formaldehyde resin[having an ortho ratio shown by the formula (infrared spectrum) of >=70%]as a curing agent in amounts to give preferably 0.9-1.2 equivalent phoenolic hydroxy group per equivalent epoxy group, to give the desired composition. If necessary, a curing promotor, e.g., benzyldimethylamine etc., a solvent, e.g., methyl ethyl ketone, etc. are added to the blend, which is impregnated into glass cloth, carbon fiber cloth, etc. as a base for laminated and cured. USE:A copper-clad laminate, etc. for forming circuit, etc. |
| format | Patent |
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CONSTITUTION:(A) An epoxy compound having two or more epoxy groups in a molecule is blended with (B) a high ortho-phenol formaldehyde resin[having an ortho ratio shown by the formula (infrared spectrum) of >=70%]as a curing agent in amounts to give preferably 0.9-1.2 equivalent phoenolic hydroxy group per equivalent epoxy group, to give the desired composition. If necessary, a curing promotor, e.g., benzyldimethylamine etc., a solvent, e.g., methyl ethyl ketone, etc. are added to the blend, which is impregnated into glass cloth, carbon fiber cloth, etc. as a base for laminated and cured. 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| subjects | CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
| title | RESIN COMPOSITION FOR LAMINATE |
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