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Wunner Sche Bitumen Werke G M
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Wunner Sche Bitumen Werke G M
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Publication of GB190718101ApublicationCriticalpatent/GB190718101A/en
Curing Cements, Concrete, And Artificial Stone
(AREA)
Abstract
18,101. Wunner 'she Bitumen Werke Ges. April 29, [date applied for under Patents Act, 1901]. Pitch.-A mixture of pitch and heavy coal tar oils is emulsified by means of alkalis or alkali carbonates and is then oxidized by means of inorganic oxides, for example the superoxides of barium, manganese, magnesium, sodium, or lead. The material so treated may be used for electric insulation, or, when mixed with Portland cement or similar materials, for building purposes. Sand and water glass may also be added.
GB190718101D1907-04-291907-08-09Improved Process for the Manufacture of Electric Insulating Materials, also suitable for Building Purposes.
ExpiredGB190718101A
(en)