Compositions and methods to protect calcitic and/or siliceous surfaces
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United States of America Patent
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Mar 6, 2001
Grant Date -
N/A
app pub date -
Jul 21, 1999
filing date -
Jul 24, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Calcitic and/or siliceous architectural and construction materials are provided with increased resistance to damage from water, oil, grease and weather by a process which comprises treating said materials with an aqueous composition containing: (A) from about 0.1 to 4% by weight on a 100% solids basis of an aqueous solution or self-dispersed emulsion or dispersion of a copolymer which is a reaction product of monomers containing fluorinated groups, cationic groups and nonionic groups, (B) an effective amount of a penetration assistant, and (C) water to make up 100%.
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