Show discarded india grubber utilized it is a matter of common knowledge that india rubber goods even of the highest quality are perishable al though although not subject joany to any great wear and tear the time comes when tho the rubber loses lose its elasticity and becomes soft and rot ten hitherto euch such perished rubber has represented a waste material for which no use could be found but by a groces recently invented the perished rubber can bo be made it is said once more serviceable by incorporating the waste with certain hydrocarbons and with a proportion of trinidad asphalt by adding to the mixture certain vegetable oils and submitting the product to heat there is produced a substance to which the name of blandy to has been given it can bo be made hard and dense or soft and pliable by modifying modifying certain parts of the process and it seems to be applicable to most of the various purposes for which pure rubber is used st louis globe democrat |