AQUEOUS DISPERSION OF (METH)ACRYLIC POLYMER AND POLYSILSESQUIOXANE NANO PARTICLES
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United States of America Patent
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Feb 17, 2022
app pub date -
Mar 5, 2020
filing date -
Mar 5, 2020
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Abstract
An aqueous dispersion containing (meth)acrylate polymer particles and substituted silsesquioxane-based particles dispersed in an aqueous carrier, wherein: (a) the substituted silsesquioxane-based particles have an volume-average size of 5 nanometers or more and at the same time less than 500 nanometers as determined by dynamic light scattering; and (b) the substituted silsesquioxane-based particles are substituted only with one or more than one moiety selected from a group consisting of alkyl, aryl, hydroxyl, trace amounts of alkoxy and combinations thereof and contain 50 mole-percent or less hydroxyl substitution in the form silanol functionalities relative to moles of substituted silsesquioxane-based particle as determined by infrared spectroscopy.
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