Bis-(hydroxybenzaldehyde) compound and novel polynuclear polyphenol compound derived therefrom and method for production thereof
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United States of America Patent
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Sep 8, 2009
Grant Date -
Mar 19, 2009
app pub date -
Feb 23, 2006
filing date -
Feb 25, 2005
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Abstract
Provide a new bis-(hydroxybenzaldehyde) compound, as well as a new polynuclear polyphenol compound derived therefrom, suitable for use as component materials for photosensitive resist compositions, component materials and hardeners for epoxy resins, developers and anti-fading agents used in thermosensitive recording materials, bactericides, fungicides, antioxidants and other functional chemical products or component materials thereof, wherein such bis-(hydroxybenzaldehyde) compound is produced by reacting in the presence of trihalogenated acetic acid catalyst or phosphoric acid catalyst a 2,6-di(hydroxymethyl)-4-alkylphenol with a hydroxybenzaldehyde expressed by general formula (14).
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