C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/447.3, 117/2
C07F 7/18 (2006.01) C09F 7/00 (2006.01) C10M 105/76 (2006.01) G11B 5/71 (2006.01)
Patent
CA 1308115
FLUORINE-CONTAINING ORGANOSILANES USEFUL AS MAGNETIC MEDIA LUBRICANTS ABSTRACT The invention relates to new organosilanes represented by the following general formula: ?3-m-p (R'COO)p?Si[(OCH2CHR'')yOR''']m CH2(CH2)q(CF2)nCF3 wherein R denotes a methyl, ethyl, propyl, or phenyl radical; R' denotes a monovalent hydrocarbon group having from 7 to 21 carbon atoms; R'' denotes hydrogen or a methyl radical; R''' is selected from the class consisting of monovalent hydro- carbon groups having from 8 to 22 carbon atoms and acyl groups having from 8 to 22 carbon atoms; p has the value of 0, 1 or 2; m has the value of 1, 2, or 3; m + p has the value of 2 or 3; y has an average value from 1 to 20; n is a positive integer from 1 to 7; and q is a positive integer from 1 to 5. The use of the organosilanes as lubricants for magnetic recording media is described.
522318
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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