| 摘要 |
A process for the manufacture of an abrasive brush of the convolute type, laminate type, flap type or the like is described with an abrasive brush made by such a process. The process comprises the steps of providing a flexible and compressible abrasive substrate, the substrate having first and second major surfaces; coating the substrate on at least the first major surface with a liquid adhesive composition containing a solid epoxy resin, a curing agent and a volatile solvent; drying the coated substrate to volatilize the solvent; cutting the substrate into smaller pieces; assembling a plurality of the pieces to provide an assembly wherein at least a pair of the pieces are oriented with respect to one another so that a first major surface of one of the pieces abuts a second major surface of another of the pieces; heating the assembly at a temperature higher than that of the drying step to cure the solid epoxy resin and thereby bond the pieces to one another within the assembly; and cooling the assembly to provide the brush. |
