Abstract: A resin compound for a molding die, a molding die made of the resin compound, and a molding method using the molding die are disclosed. The resin compound includes thermoplastic resin, inorganic fiber reinforcing material and inorganic particle filler, has a flexural strength of 1000 kgf/cm.sub.2 or more and a modulus of elasticity in bending of 70000 kgf/cm.sup.2 or more, and allows machining. A deflection temperature under flexural load of the compound may be 180.degree. C. or more. From this compound, it is possible to provide a core, a cavity block or the like of molding dies which can be accurately finished by machining finishing with a low cost and within a short term, have durability and allows recycling. The molding dies can be applied to various molding methods, and provide accurate molded products with a low cost.
Type:
Grant
Filed:
October 10, 1995
Date of Patent:
August 24, 1999
Assignee:
Otsuka Kagaku Kabushiki Kaisha
Inventors:
Yasuhiko Ichikawa, Koji Sakane, Yozaburo Tsujikawa, Takio Tasaka