| 摘要 |
A BINDER COMPOSITION OF A PHENOLIC NOVOLAC RESIN AND A (LOWER) ALKOXYLATED TRIAZINEFORMALDEHYDE RESIN CURING AGENT IS DISCLOSED. THE TRIAZINE RESINS NAVE SUFFICIENT CARBON ATOMS IN THE ALKOXY GROUPS SO AS TO PROVIDE A CURING AGENT HAVING A WATER SOLUBILITY OF LESS THAN 15%. THE BINDER CURES AT HIGH TEMPERATURES SO AS TO PROVIDE IMPROVED FLOW AND PROLONGED WORKABILITY TO THE COMPOSITION.THE COMPOSITIONS ARE USEFUL IN REFRACTORY APPLICATIONS HAVING A NEED FOR HIGH TEMPERATURE CURING AGENTS SUCH AS FOR MAINTENANCE AND REPAIR WITHIN REFRACTORY VESSELS BY GUNNING/SPRAYING, MANUFACTURE OF ELECTRODES BY THE SODERBERG METHOD, AND FOR USE IN BLAST FURNACE TAP HOLES. |
