ISSN 2415-1297 (Online)   ISSN 2415-1300 (Print)
 
             
 
Volume : 26 Issue : 4 Year : 2018
 
New Synthetic Varnishes from Local Coal-Tar Phenols [Med J Islamic World Acad Sci]
Med J Islamic World Acad Sci. 1991; 4(4): 285-288

New Synthetic Varnishes from Local Coal-Tar Phenols

T. M. Kassem, A. M. Hassan, M. A. Youssif, T. M. Ezzat
From Department of Petrochemicals, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.

Locally producer coal-tar phenols were fractionally distilled and the required fraction which rich with phenol was collected and specified. This phenolic fraction was methylated and acylated with selected acid chlorides to the corresponding ketones which then reduced and finally demethylated to the required alkyl phenols. These alkyl phenols were condensed with formalin to produce the corresponding alkyl phenol-formaldehyde resin which the processed to the required varnishes. Several formulations from the prepared varnish samples were chosen and their electrical and chemical properties were examined.

Keywords: Insulating varnishes, coal-tar phenols, synthetic varnishes


T. M. Kassem, A. M. Hassan, M. A. Youssif, T. M. Ezzat. New Synthetic Varnishes from Local Coal-Tar Phenols. Med J Islamic World Acad Sci. 1991; 4(4): 285-288

Corresponding Author: T. M. Kassem, Egypt


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