Compositions – Heat-exchange – low-freezing or pour point – or high boiling...
Reexamination Certificate
2006-01-24
2006-01-24
Boyer, Charles (Department: 1751)
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
C252S073000, C252S079000, C508S110000, C508S431000
Reexamination Certificate
active
06989107
ABSTRACT:
A method for the mechanical working of metals and alloys which comprises conducting the mechanical working in the presence of an aqueous cooling lubricant having a pH of 6-10 and containing a phosphate ester of the formulain-line-formulae description="In-line Formulae" end="lead"?R1(oxyalkylene)nOP(O)(X)(OH) (I),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?orin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?(HO)2(O)P-(oxyalkylene)mOP(O)(OH)2 (II),in-line-formulae description="In-line Formulae" end="tail"?where R1is an alkyl group with 1-12 carbon atoms, oxyalkylene is a group containing 2-4 carbon atoms, n is a number from 1-20, X is hydroxyl, R1O or R1(oxyalkylene)nO, where R1, oxyalkylene and n have the meanings mentioned above, and m is a number from 4-40, or a salt thereof, and an alkenyl substituted succinic acid of the formulain-line-formulae description="In-line Formulae" end="lead"?HOOCCH(R2)CH2COOH (III),in-line-formulae description="In-line Formulae" end="tail"?where R2is an alkenyl group with 4-10 carbon atoms, or a salt thereof, or a mixture of any of the compounds I, II and III.
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AB Chem Dimension
Birch & Stewart Kolasch & Birch, LLP
Boyer Charles
Hamlin D. G.
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