TERPOLYMER METHACRYLATE DISPERSANT
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United States of America Patent
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N/A
Issued Date -
Sep 11, 2008
app pub date -
Mar 5, 2007
filing date -
Mar 5, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A methacrylate terpolymer, methods for making the terpolymer, and lubricant compositions containing the terpolymer. The terpolymer is derived from (a) a C.sub.4-alkylmethacrylate monomeric unit; (b) a C.sub.10-15-alkylmethacrylate monomeric unit; and (c) a di-lower-alkylaminoalkyl methacrylate monomeric unit. Component (a) is in the terpolymer in an amount ranging from about 15 up to less than about 30 percent by weight of the terpolymer. Component (b) is in the terpolymer in an amount ranging from more than about 70 up to about 80 percent by weight of the terpolymer. Component (c) is in the terpolymer in an amount ranging from about 2 to less than about 10 percent by weight of the terpolymer.
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