Patents Represented by Attorney M. D. Madsen

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  • Method for the preparation of pure 2-ethylhexyl gallate
    Patent number: 4112238
    Abstract: Crude 2-ethylhexyl gallate is purified by crystallizing it from a system containing an aliphatic hydrocarbon solvent such as hexane and a small proportion of 2-ethylhexanol.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: September 5, 1978
    Assignee: Mallinckrodt, Inc.
    Inventors: Douglas W. Chapman, Hugh C. Bertsch