SINGLE OR MULTI-LAYER FILTER MATERIAL AND METHOD FOR THE PRODUCTION THEREOF
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United States of America Patent
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Issued Date -
Dec 1, 2011
app pub date -
Nov 5, 2009
filing date -
Jan 29, 2009
priority date (Note) -
Abandoned
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Abstract
The invention relates to a single or multi-layer filter material, comprising at least one layer made of cellulose, glass fiber, synthetic fiber, or a mixture thereof, and saturated with a binding agent made of an epoxy resin and a curing agent. The hardening agent comprises a first hardener cross-linking at a lower temperature, and a second hardener cross-linking at a higher temperature, so that the epoxy resin can be hardened stepwise depending on the temperature.
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