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US4645567A Filter media and method of making same 失效
过滤介质及其制作方法

Filter media and method of making same
摘要:
Process for production of anionically charged filter media sheet including pretreatment of filter elements with cationic charge modifier, preferably, employing inorganic colloidal silica charge modifiers. The resulting filters are used for the removal of haze or haze formers from beverages.
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