(PER)FLUOROPOLYETHERS WITH bi- OR ter-PHENYL END GROUPS
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United States of America Patent
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Jan 8, 2015
app pub date -
Feb 12, 2013
filing date -
Feb 17, 2012
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Abstract
The present invention relates (per)fluoropolyether compounds comprising a (per)fluoropolyether chain (Rf) having at least two chain ends, wherein at least one of said chain ends have a bi- or ter-phenyl group bearing at least one nitro group and, optionally one or more further substituents. The invention also relates to processes for the preparation of such compounds and to their use for the preparation of lubricant compositions in the form of oils or greases.
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