| 摘要 |
FOAMED ORGANOPOLYSILOXANE ABRASIVE MATERIALS A foamed abrasive material having improved surface friction characteristics is described. The material is an organopolysiloxane foam having abrasive grit uniformly dispersed in the organopolysiloxane. The abrasive foam material having improved surface friction characteristics is prepared by mixing an abrasive grit in an organopolysiloxane having an organopolysiloxane foam-forming agent therein, to uniformly disperse the abrasive grit therein; allowing the mixture to foam; and curing the foam. In one embodiment, an article is formed of abrasive foam material by heating the abrasive grit-containing organopolysiloxane having an organopolysiloxane foam-forming agent therein at an elevated temperature in the presence of a catalyst in a mold, whereby gas formed in situ by the reaction of components in the filler and the organopolysiloxane form cells in the organopolysiloxane while simultaneously curing the organopolysiloxane in the mold at the elevated temperature. |
