Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB170645A
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Individual
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Individual
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Priority to GB170645ApriorityCriticalpatent/GB604918A/en
Publication of GB604918ApublicationCriticalpatent/GB604918A/en
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products
(AREA)
Abstract
Rubber is rendered porous by the use of the following ingredients which are heated by steam or other methods to evolve gases; ammonium carbonate, bicarbonate of soda, sodium nitrate, ammonium chloride, carbonate of methanolamine, calcium carbide or ammonium sulphate. An accelerator (unspecified) may be used.