| 摘要 |
An environmentally-safe heat-reactive curable melt adhesive in fine crystalline powder form is mixed with any of a large variety of compatible particulate materials and heated to a predetermined temperature for a predetermined time during which the powder liquifies and cross links. The preliminary mixture can be accomplished by gentle tumbling, and in the process, the powder crystals cling to the particles. Upon subsequent cooling, the powder adhesive cross link bonds the particles to each other and/or to each other and to a supporting member or surface. Application of pressure at the time of heating is particularly useful where the end product has some thickness. A grinding wheel can be made by sifting the dry mixture through a soft non-woven pad until its interstices are essentially filled. The pad is then placed under pressure during the heating process.
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