RUSTPROOFING LUBRICANT FOR GALVANIZED STEEL SHEET

PURPOSE:To obtain the title rustproofing lubricant excellent not only in lubricity and resistance to discoloration but also in removability by washing by using a neutralized pentaerythritol fatty acid ester and a specified alkali (alkaline earth) metal salt as the constituents. CONSTITUTION:An penta...

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Main Authors NUMAKURA YUKIO, NAKAYAMA MOTOHIRO, NAGAEI YOSHIO, OKUMURA YASUO
Format Patent
LanguageEnglish
Published 07.05.1991
Subjects
CHEMISTRY
FUELS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:PURPOSE:To obtain the title rustproofing lubricant excellent not only in lubricity and resistance to discoloration but also in removability by washing by using a neutralized pentaerythritol fatty acid ester and a specified alkali (alkaline earth) metal salt as the constituents. CONSTITUTION:An pentaerythritol fatty acid ester obtained by esterifying a 10-18C higher fatty acid with pentaerythritol and having an acid value of at most 5, an iodine value of at most 20 and a hydroxyl number of at most 50 is neutralized with a secondary amine in an amount equimolar to the free fatty acid contained in the ester compound. 70-97% of the neutralized compound is mixed with 3-30% of at least one of an alkali (alkaline earth) metal salt of oxidized petroleum and an alkali (alkaline earth) metal salt of an aromatic hydrocarbon sulfonic acid to give a rustproofing lubricant which is utilized for press working of a galvanized steel sheet and is excellent not only in lubricity and resistance to discoloration but also in removability by washing (degreasing properties).
Bibliography:Application Number: JP19890243918