| 摘要 |
<p>Disclosed is the reaction product of: a solvent-carried component chosen from the group consisting of resorcinol and a mixture of resorcinol and phenol and a solvent-carried first aldehyde component to provide a novolac resin. This novolac resin thereby being pre-mixed, to provide a novolac resin in solvent with a solids content of about 64 % to 83 % and a viscosity of about 250 to 3500 cps. A second aldehyde component is added at the time of use to bring the aldehyde percentage to 100 % or more of the equivalent amount of total aldehyde to phenolic hydroxyl radicals and to retain a high solids content with a workable viscosity. This mixture is then spread upon a fire resistive reinforcing fiberglass material, and the solvent is removed at the time of cure to provide a fire-resistant reinforced plastic material.</p> |
