Production of tanned leather and products suitable therefore
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United States of America Patent
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Jan 31, 2006
Grant Date -
Apr 22, 2004
app pub date -
Jan 25, 2002
filing date -
Jan 26, 2001
priority date (Note) -
Expired
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Abstract
The invention provides a process for the production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre)tanned animal hide or pelt is treated with (A) an aldehyde-based treatment agent which may e.g. be (F) a tanning aldehyde or an aldehyde-based stability and/or fastness improving agent or (S) an aldehyde-based syntan,
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