| 摘要 |
PURPOSE:To improve preservable stability by coating the surface of core body particles by a coating material contg. a room temp. curing organopolysiloxane compsn. chiefly consisting of polyether modified organopolysiloxane and hardener. CONSTITUTION:The surface of the core body particles is coated with the coating material contg. the room temp. curing organopolysiloxane compsn. chiefly consisting of the polyether modified organopolysiloxane and hardener. The organopolysiloxane contg. the silicon atom bonded org. group expressed by -R<1>O(R<2>O)nR<3> (where, R<1>, R<2> are a divalent alkylene group, R<3> is a terminal sealing group and at least two silanol groups within the same molecule is used for the polyether modified organopolysiloxane. Nonmetals, metals, alloys, etc., such as sand, cobalt, iron, copper, nickel, zinc, aluminum, brass and glass having 10-1,000mu average grain size are used as the carrier core body particles to be coated with the coating material. |
