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US 6,698,247 B2Granted
Method and feedstock for making silica by flame combustion
AssigneeCorning Incorporated
InventorsDavid L. Tennent, Joseph M. Whalen
Life of this patent
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Abstract
A method for making silica includes delivering a silica precursor comprising a perfluorinated group to a conversion site and passing the silica precursor through a conversion flame to produce silica soot.
Claims31
A method for making silica, comprising:
- delivering a silica precursor comprising at least one perfluorinated carbon group (RF) having a carbon atom bonded directly or through an intermediate oxygen atom to silicon to a conversion site;
- and
- passing the silica precursor through a conversion flame to produce silica soot.
A method for making fused silica, comprising:
- delivering a silica precursor comprising at least one perfluorinated carbon group having a carbon atom bonded directly or through an intermediate oxygen atom to silicon to a conversion site;
- passing the silica precursor through a conversion flame to produce silica soot;
- and
- depositing the silica soot onto a deposition surface, wherein the silica soot is immediately consolidated into glass.
1 more element
A method for making silica, comprising:
- delivering a silica precursor comprising at least one perhalogenated carbon group (RZ) having a carbon atom bonded directly or through an intermediate oxygen atom to silicon to a conversion site;
- and
- passing the silica precursor through a flame to produce silica soot.
Dependencies are inferred from the claim text.