| 摘要 |
<p>Materials can be utilised at temps. above 260 degrees C, the fibres being bonded with a thermocurable resin contg. 5-40% wt. pref. 30% dicyanodiamide. The thermocurable resin is pref. self-extinguishing. The thermocurable resin is pref. a phenol-formaldehyde/melamine-formaldehyde copolymer, or a phenol-formaldehyde/melamine-foraldehyde/urea-formaldehyde terpolymer. The resin pref. contains 30-65.</p> |
