Fast Water-Absorbing Material Having a Coating of Elastic Film-Forming Polyurethane with High Wicking
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
May 31, 2012
filing date -
Jun 1, 2011
priority date (Note) -
Abandoned
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Abstract
The invention relates to a process for producing a water-absorbing material by coating water-absorbing polymer particles with a film-forming polyurethane and pyrogenic silica and heat treating the coated particles. The invention further relates to the water-absorbing material obtainable according to the process of the invention. The water-absorbing material has improved wicking ability (FHA) and fixed swell rate (FSR).
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