著者

若菜 章 広川 隆一 藤田 稔 熊沢 元春

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.4, pp.242-245, 1971

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Pour point reversions of various lubricating oils containing one of three different type pour point depressants (naphthalene-chlorinated paraffin condensation product, phenol-chlorinated paraffin condensation product and polyalkylmethacrylate) were measured by sudden cooling-heating cycle method and Federal test method.<BR>In the former test any pour point reversion was not recognized, but in the latter test a 2.57.5°C range of the pour point reversions was observed in all cases.<BR>Polyalkylmethacrylate gave the most effective pour point depressions and the most stable pour point reversions among the additives.