Document dY5KQDRw7yXB03k3xLBQbv2oq

ft I <.1 Kr. S. T. take - Bound! kook hiin. Cowan ud ittaohoefer ^iT^Tf.TTr - eepiio nn or sn Kerch 27, 1946 tha following 0. 8* patent assigned to irutroog Cork Coapany ai; pos sibly contain sene polata of lataroat la ooa&aetloa with pour attaopta to speed up tha reaction tlae of Celellltet lo. 2,396,2^6 - larch 12, 1946 - Conral C. Callla Tou will noto that thla patoot iarolrea a ooapoaition consisting ofi (a) Recetlve eonohydroted alualaa, produced by bauxite or any other aluBina-oont&lnlag mineral. (b) Lise. (e) Asbestos fibera. It la olalaed that the reaction between the llae and uonobydreted alurine would take plaea at about rooe tecoarature. after whleht 'The block aay be dried by beating to an elevated teoper&ture fros about 150 to 400 T. or higher. The elevated teaperature la not used to effeetu&te the reeetlon between the alkaline earth oxide and tha aonohydrated alunlna aa thla reaction should take pl*ce at about roou texpercture to produce a well bonded, light-weight saterial having good lnaulatlsg properties.* Tha finished product la uaed for Insulating purposes and seasa to b&va very good thermal-conductivity and strength. It la also claimed to withstand tenperaturaa aa high aa 1930 F. However, no Motion is uede aa to what tha weight of the naterlal runs per cubic foot or whether the product la suitable for pipe Insulation. H4iG. President 01-0213910 GAF 22734