Liquid aqueous compositions comprising perfluoropolyethereal compounds suitable as lubricants in the plastic processing of metals
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United States of America Patent
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May 18, 1993
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N/A
app pub date -
Jan 22, 1991
filing date -
Sep 19, 1988
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Expired
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Abstract
Aqueous compositions containing from 1% to 40% by weight of a perfluoropolyethereal compound having a molecular weight ranging from 400 to 5,000 and containing carboxylic end groups, which are salified with an organic or inorganic base are disclosed. The compositions are useful as lubricating/refrigerating liquids in the plastic cold processing processes of metals, in particular, rolling, dishing, drawing, and the like.
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