Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2007-03-13
2008-10-21
Zimmer, Marc S (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C528S491000, C528S493000, C436S039000, C436S072000
Reexamination Certificate
active
07439318
ABSTRACT:
An analytical technique for the accurate and precise measurement of trace water in chemical reagents, comprising the steps of combining a chemical reagent comprising ≦5 ppm water, with hexafluoroacetone (HFA), to form a sample mixture comprising at least the chemical reagent and a water derivative of hexafluoroacetone; and measuring the concentration of the water derivative of hexafluoroacetone by gas chromatography.
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Baum Thomas H.
Borovik Alexander S.
Wang Ziyun
Xu Chongying
Advanced Technology & Materials Inc.
Chappuis Maggie
Hultquist Steven J.
Intellectual Property / Technology Law
Zimmer Marc S
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