Patents by Inventor John F. E. Keenan

John F. E. Keenan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Triaryl phosphates
    Patent number: 4370281
    Abstract: The invention provides triaryl phosphates of the general formula ##STR1## wherein x is 1 or 2, R.sub.1 is hydrogen, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, t-butyl or isopropyl, R.sub.4 is hydrogen or an isopropyl group and R.sub.5 is an isopropyl group, with the proviso that at least one of the aryl radicals is a di-isopropylphenyl radical, but not more than two of the three aryl groups are identical.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: January 25, 1983
    Assignee: Ciba-Geigy AG
    Inventors: Brian G. Clubley, Thomas G. Hyde, John F. E. Keenan
  • Process for the dyeing of hydrophobic fibres
    Patent number: 4255152
    Abstract: A batchwise process for dyeing hydrophobic fibres at 110.degree. C. to 135.degree. C. with a disperse dye in the presence of an adduct of an average of 1 to 4 molar proportions of ethylene oxide, propylene oxide or styrene oxide or a combination of these oxides with 1 molar proportion of a phenol compound having the formula ##STR1## in which n is a number from 1 to 4,R.sub.1 is hydrogen, chlorine an alkyl group with 1 to 8 carbon atoms, an alkoxy group with 1 to 8 carbon atoms or an alkenyl group with 2 to 8 carbon atoms.R.sub.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: March 10, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Brian Hewitt, Cyril Hobday, James Jack, John F. E. Keenan