| abstract |
PURPOSE: A resin material capable of cleaning easily contaiminated materials in molds of molding of transfer molding, etc. without damaging the molds, containing a thermosetting resin, an inorganic filler having specific particle diameters, and a fibrous filler having specified fiber length, having limited particle diameters of the whole material. n CONSTITUTION: A resin molding material containing (A) a thermosetting resin (e.g., phenolic resin, melamine resin, etc.), (B) an inorganic filler (e.g., CaCO 3 , silica, clay, etc.) having particle diameters passing through 42 meshes Tyler standar sieve, and (C) an fibrous filler (e.g., pulp sawdust, glass fiber, etc.) having ≤0.44mm fiber length, wherein the whole particles pass through 42 meshes Tyler standard sieve, is used for cleaning molds. A blending range is preferably 15W85pts.wt. component A, 10W50pts.wt. component B, and 5W35pts.wt. component C. n EFFECT: When the resin molding material is molded in molds, contaminated materials accumulated in the surfaces of the molds are pushed out by the molding material, and removed easily. n COPYRIGHT: (C)1984,JPO&Japio |