Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2005-02-22
2005-02-22
Moore, Margaret G. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C556S451000, C556S460000, C524S588000
Reexamination Certificate
active
06858697
ABSTRACT:
The present invention is; (a) a process for stabilizing a cyclotetrasiloxane, such as 1,3,5,7-tetramethylcyclotetrasiloxane, against polymerization used in a chemical vapor deposition process for silicon oxides in electronic material fabrication comprising providing an effective amount of a neutral to weakly acidic polymerization inhibitor to such cyclotetrasiloxane; and (b) a composition of a cyclotetrasiloxane, such as 1,3,5,7-tetramethylcyclotetrasiloxane, stabilized against polymerization used in a chemical vapor deposition process as a precursor for silicon oxides in electronic material fabrication, comprising; such cyclotetrasiloxane and a neutral to weakly acidic polymerization inhibitor. A free radical scavenger can also be included in the process and composition.
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Gaffney Thomas Richard
Mayorga Steven Gerard
Xiao Manchao
Air Products and Chemicals Inc.
Moore Margaret G.
Morris-Oskanian Rosaleen P.
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