Mineral fibre provided with a microporous or mesoporous coating
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United States of America Patent
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Issued Date -
Oct 7, 2004
app pub date -
May 17, 2004
filing date -
Jul 25, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a mineral fibre provided with an essentially mineral microporous or mesoporous coating and to a product comprising such fibres and optionally an organic constituent such as a binder, having a specific surface area at least equal to 10 m.sup.2/g, preferably at least equal to 30 m.sup.2/g. The invention also relates to a process for forming a fibre thus coated, by bringing the bare fibre into contact with a composition of organic assembling groups and of at least one precursor of the material constituting the microporous or mesoporous coating, polymerization or precipitation and growth of the precursor around the organic assembling groups and then removal of the organic assembling groups. Also included in the invention are applications of the coated fibre in catalysis and photocatalysis, in the filtration and treatment of gases and liquids, and its use at temperatures as high as 900.degree. C. or higher, taking advantage of its remarkable withstand capability under such conditions.
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