Patents by Inventor James P. Neilan

James P. Neilan 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).

  • Method for accelerating oxime production
    Patent number: 5334762
    Abstract: A method for preparing oximes where an aldehyde or ketone is reacted with hydroxylamine or its salt in the presence of a catalytic amount of an organotin(IV) compound such as monoalkyltin(IV), dialkyltin(IV) and aryltin(IV). The organotin(IV) compound is represented by the formula I:(R.sup.1).sub.n SnX.sub.m-n (I)where R.sup.1 is independently selected from alkyl of 1 to 18 carbons or aryl, X is halogen, oxygen, hydroxyl, OR.sup.1, R.sup.2 CO.sub.2 --, R.sup.2 O.sub.2 C--(Z).sub.y --CO.sub.2 -- or R.sup.2 CO.sub.2 (CH.sub.2).sub.y S--, R.sup.2 is alkyl of 1 to 18 carbons or aryl, Z is selected from CH.sub.2 or CH.dbd.CH, where y is 0 to 6, n is 1 or 2 and m is 4 except that when X is oxygen, n is 2 and m is 3. Exemplary of the organotin(IV) compounds are butyltin tris(2-ethylhexanoate), dibutyltin diacetate and diphenyltin dichloride.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: August 2, 1994
    Assignee: Zeneca Inc.
    Inventors: James P. Neilan, Donald J. Gosciniak
  • N-2,2-dimethyl-2-(2-hydroxy-alkylphenyl) heterocycles and stabilized compositions
    Patent number: 4925938
    Abstract: Novel hindered hydroxyphenyl alkyl isocyanurates are provided which are useful as stabilizers of resins made from at least one ethylenically unsaturated monomer.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: May 15, 1990
    Assignee: ICI Americas Inc.
    Inventors: James P. Neilan, John F. Stephen
  • N-2,2-dimethyl-2-(2-hydroxy-alkylphenyl) heterocycles and stabilized compositions
    Patent number: 4826983
    Abstract: Novel hindered hydroxyphenyl alkyl isocyanurates are provided which are useful as stabilizers of resins made from at least one ethylenically unsaturated monomer.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: May 2, 1989
    Assignee: ICI Americas Inc.
    Inventors: James P. Neilan, John F. Stephen