Measuring and testing – Volume or rate of flow – Expansible chamber
Reexamination Certificate
2005-03-15
2005-03-15
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Volume or rate of flow
Expansible chamber
Reexamination Certificate
active
06865939
ABSTRACT:
A method for surface modification of microchannels and capillaries. The method produces a chemically inert surface having a lowered surface free energy and improved frictional properties by attaching a fluorinated alkane group to the surface. The coating is produced by hydrolysis of a silane agent that is functionalized with either alkoxy or chloro ligands and an uncharged C3-C10fluorinated alkane chain. It has been found that the extent of surface coverage can be controlled by controlling the contact time from a minimum of about 2 minutes to a maximum of 120 minutes for complete surface coverage.
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Kirby Brian J.
Shepodd Timothy Jon
Lefkowitz Edward
Nissen Donald A.
Sandia Naitonal Laboratories
Thompson Jewel V.
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