Ceramic articles with bleed-through barrier and methods of manufacture thereof
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United States of America Patent
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Feb 6, 2024
Grant Date -
Sep 24, 2020
app pub date -
Nov 30, 2018
filing date -
Nov 30, 2017
priority date (Note) -
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Abstract
Methods for limiting bleed-through of aqueous catalyst solutions in ceramic articles are described herein. The methods include applying a hydrophobic cellulose derivative, such as ethylcellulose, to an exterior surface of a fired porous ceramic article. The aqueous catalyst solution is applied to the fired porous ceramic article, such that the hydrophobic cellulose derivative limits bleed-through of the aqueous catalyst solution through at least a portion of the ceramic article. Ceramic articles with skins that limit bleed-through of aqueous catalyst solutions are also described herein.
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