EPOXY RESIN, EPOXY RESIN COMPOSITION AND HARDENED PRODUCT THEREOF

摘要

THIS INVENTION PROVIDES A NOVOLAK TYPE EPOXY RESIN WHICH HAS LOW MELT VISCOSITY BUT SHOWS HIGH HEAT RESISTANCE WHEN HARDENED. PARTICULARLY, IT RELATES TO A NOVOLAK TYPE EPOXY RESIN IN WHICH THE RELATIONSHIP BETWEEN THE TOTAL % BY WEIGHT OF 3 TO 6 NUCLEUS BODIES AND THE MELT VISCOSITY MEASURED BY A CONE PLATE METHOD AT 150°C SATISFIES SPECIFIED CONDITIONS, AN EPOXY RESIN COMPOSITION CONTAINING THE SAME AND HARDENED PRODUCTS THEREOF.