| 摘要 |
In the production of goods from a froth dispersion of the parent Specification, the support or backing stratum is first coated with a suitable coagulating, dehydrating, and/or setting agent, or may be itself of such a nature. Coagulating agents may further be applied to the layer of dispersion. The formers or moulds may be porous or non-porous and may be internally heated, the dispersion, if desired, being such as to gel on heating. Specifications 219,635, 290,313, 328,015, 339,974, [all in Class 70, Indiarubber &c.], and 359,584 are referred to. |
