Polycondensation products and a process for their preparation
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United States of America Patent
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Jan 22, 2008
Grant Date -
Jan 27, 2005
app pub date -
Jul 10, 2003
filing date -
Jul 12, 2002
priority date (Note) -
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Abstract
The invention relates to the polycondensation products produced by reaction of bisphenol residues from bisphenol production with an aldehyde in an acidic medium useful for the production of refractory molded bodies, of unmolded substances used in the refractory industry and, together with coating powder residues, as binding agents or binding agent components for the production of molded nonwoven fabric parts.
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