[1]JournaloftheAmericanChemicalSociety,1951,vol.73,p.5857
[2]Patent:US2014/18384,2014,A1.Locationinpatent:Paragraph0170;0171
[1]Patent:US2319426,1939,
[1]RicercaScientifica,1956,vol.26,p.3352,3354
[1]Patent:US2064331,1935,A
[1]CurrentPatentAssignee:DUPONTDENEMOURSINC-US2149335,1933,A
[2]CurrentPatentAssignee:DUPONTDENEMOURSINC-US2064331,1935,A