| 摘要 |
AQUEOUS COMPOSITIONS COMPRISING PHENOLIC RESIN AND CROSSLINKING AGENT Storage-stable, heat-reactive aqueous. compositions prising at least one novolak phenolic resin, at least one formaldehyde polymer, and water, wherein said formaldehyde polymer is present in an amount sufficient to crosslink said novolak resin, are useful for direct bonding of natural and synthetic resins to rigid and non-rigid substrates and as primers for rubber-to-metal adhesives. The herein-described aqueous adhesive systems can have incorporated therein conventional additives such as fillers and the like. . |
