US Patent 7988884 Preparation of sterically hindered hydroxyphenylcarboxylic acid esters
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Patent abstract
A novel manufacturing process is described for producing hindered phenolic alkyl esters, which may be useful as antioxidants. This process simplifies catalyst neutralization and removal during the preparation of hindered phenolic esters. Compositions that comprise the hindered phenolic esters produced according to these methods are also described.
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Patent Inventor Names
Chi Hung Cheng0
Hassan Y Elnagar0
J. Robert Adams0
Vincent J. Gatto0
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US Patent 07988884 Preparation of sterically hindered hydroxyphenylcarboxylic acid esters US Patent 7988884 Preparation of sterically hindered hydroxyphenylcarboxylic acid esters
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Patent Number
079888840
Patent Number
79888840
Edits on 28 Mar, 2023
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Is a
Patent Jurisdiction
Patent Number
079888840
Date of Patent
August 2, 2011
0Patent Application Number
126936850
Date Filed
January 26, 2010
0Patent Primary Examiner
Edits on 8 Dec, 2021
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US Patent 07988884 Preparation of sterically hindered hydroxyphenylcarboxylic acid esters
Infobox
Is a
Patent jurisdiction
Patent number
07988884
Date of patent
August 2, 2011
Patent application number
12693685
Date Filed
January 26, 2010
Patent primary examiner
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