Liquid purification or separation – Processes – Extracting utilizing solid solute
Reexamination Certificate
2007-02-20
2007-02-20
Kiliman, Ieszek B. (Department: 1773)
Liquid purification or separation
Processes
Extracting utilizing solid solute
C210S634000, C210S651000, C095S090000, C095S146000, C095S148000
Reexamination Certificate
active
10287492
ABSTRACT:
A method for avoidance of attrited carbon dust is disclosed to lead to improved canister performance in emission control. Product attrition by dusting of granular and shaped activated carbons is disclosed to be reduced significantly, or essentially eliminated, by the application of a thin, continuous polymer coating on the granular or shaped activated carbon, without a reduction in adsorption velocity or capacity of the activated carbon when used in automotive emission control canisters.
REFERENCES:
patent: 4476169 (1984-10-01), Nishino et al.
patent: 6540815 (2003-04-01), Hiltzik et al.
Hiltzik Laurence H.
Tolles Edward D.
Walker David R. B.
Kiliman Ieszek B.
McDaniel Terry B.
MeadWestvaco Corporation
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