| 摘要 |
<p>Rubber latex foam of S.G. 9.6 to 20.8 g/dm3, pref. between 12.8 and 19.2 g/dm3, is produced by introducing into a mould a rubber latex foam of wet S.G. 70 to 100 g./l., pref. 80 to 90 g./l., expanding the foam under vacuum to fill the mould, after which the latex foam is congealed, gelled and vulcanised. The latex may be from natural or synthetic rubbers or mixtures.</p> |
