REMARKABLE RUBBER DISCOVERY
A discovery of the highest importance has been made by a lecturer in chemistry ot tho Manchester (England) School of Technology. When rubber and sulphur are mixed together at a high temperature, the rubber becomes hard and tough '-"vulcanised" is tho technical term for tfce change. While rubber can stnnd the necessary heat, other raw materials with which it might be usefully'mixed would be destroyed. The new invention is a cold ' process, in which two gases ...are used to produce. th» free sulphur required in vulcanising. When crude rubber, either in the solid or the liquid form, 1a treated with the two pases it becomes efficiently vulcanised, and when.it is mixnd with any waste material wch' as sawdust, leather scraps, or paper, a similar change takes place without the Pjonerhes of tho waste material 'being affected. TJns discovery is to bo applied iinmcduitoly to the manufacture of linoleum, the heavier classes of wall-paper, and artificial leather for upholstery. It is also applicable to, the manufacture of 011cmece "boots (of rubber ntid leather scrap) and of felt (combining rubber and There"will ofeo be developments in connection with motor tyres.
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Dominion, Volume 13, Issue 290, 1 September 1920, Page 4
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191REMARKABLE RUBBER DISCOVERY Dominion, Volume 13, Issue 290, 1 September 1920, Page 4
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