Water Repellent Organopolysiloxane Materials
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United States of America Patent
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Mar 26, 2015
app pub date -
May 2, 2013
filing date -
May 2, 2012
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Abstract
A process for increasing the hydrophobicity of a porous product by treating the product or a composition providing the product, with a water repellent material, characterised in that the porous product or a composition providing the product is treated with an aqueous suspension of microcapsules, where the microcapsules comprise a water repellent organopolysiloxane core material and a shell of a silicon-based network polymer comprising silica units.
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