Long-shelflife concentrated aqueous solutions of melamine-formaldehyde condensates, preparation and use thereof
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United States of America Patent
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Nov 17, 1987
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N/A
app pub date -
Sep 30, 1986
filing date -
Oct 4, 1985
priority date (Note) -
Expired
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Abstract
Concentrated aqueous solutions of sulfo-containing melamine-formaldehyde condensates containing hydantoin derivatives to prolong their shelf life. These melamine-formaldehyde condensates are predominantly used as additives in inorganic binders to improve their flow and strength properties.
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