Metal treatment – Compositions – Heat treating
Reexamination Certificate
2005-12-07
2011-12-06
Wyszomierski, George (Department: 1733)
Metal treatment
Compositions
Heat treating
C148S637000, C585S002000, C585S734000
Reexamination Certificate
active
08070885
ABSTRACT:
Quenching fluid composition comprising one or more additives and a saturated base oil having a kinematic viscosity at 100° C. “K” expressed in centistokes and a viscosity index “I” wherein I is greater than 120 and K greater than 2 cSt.
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International Search Report dated Apr. 7, 2006 (PCT/EP2005/056565).
Shell Oil Company
Wyszomierski George
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