Wetting of water repellent soil by low HLB EO/PO block copolymers and enhancing solubility of same
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United States of America Patent
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Jun 2, 2009
Grant Date -
Dec 29, 2005
app pub date -
Aug 31, 2005
filing date -
Oct 9, 2001
priority date (Note) -
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Abstract
Water repellent soil is treated with low concentrations of EO/PO block copolymer having an HLB value of less than or equal to 2; an average molecular weight of greater than 3,000; and a percent hydrophile of 10 in order to rapidly increase the wetting rate of the water repellent soil.
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