Method for impregnating a support matrix with solid and/or liquid compounds using compressed gases, and matrials impregnated in this manner
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United States of America Patent
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Issued Date -
May 27, 2004
app pub date -
May 29, 2003
filing date -
Aug 22, 2000
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for impregnating a support matrix with solid and/or liquid compounds using a compressed gas or a compressed mixture of gases at densities ranging from 0.15 to 1.3 kg/l and at least two unsymmetrical pressure changes (pulsations). The method is further charcterized in that both a multitude of impregnating substances such as biologically active compounds, technical materials or metal-organic compounds, as well as support matrices of biological origin and organic or inorganic substances can be used that have large inner surfaces and/or inner surfaces that are difficult to access.
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