Patents Represented by Attorney T. E. Kelley

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  • Bismaleimide resins
    Patent number: 4924005
    Abstract: Substantially insoluble bismaleimide compositions consisting essentially of bismaleimides of the formula ##STR1## where R.sub.1 and R.sub.2 are independently hydrogen, methyl, ethyl or halogenated methyl. The phenyl groups may be substituted. The compositions, having a solubility in acetone of less than about 5% by wt., are useful as melt processable resins for high temperature resistant laminates.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: May 8, 1990
    Assignee: Monsanto Company
    Inventor: Ronald H. Dahms
  • Alkylaryl sulfonate compositions
    Patent number: 4645623
    Abstract: Alkylarylsulfonate compositions containing low 2-phenyl alkylbenzene sulfonates and alkylated diphenyl oxide sulfonates are provided. The compositions have improved solubility and detergency properties and are useful in aqueous base detergent formulations. Also provided are intermediate compositions suitable for cosulfonation and neutralization.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: February 24, 1987
    Assignee: Monsanto Company
    Inventors: Michael J. Dolan, John N. Rapko, William W. Morgenthaler
  • Aminomethylenephosphonic acid solutions
    Patent number: 4615840
    Abstract: Aqueous solutions of aminomethylenephosphonic acid selected from diethylenetriaminepenta(methylenephosphonic acid), diethylenetriaminetetra(methylenephosphonic acid), diethylenetriaminetri(methylenephosphonic acid) and mixtures thereof are stabilized against crystallization of said aminomethylenephosphonic acid by including non-oxidizing mineral acid in such solutions in an amount stoichiometrically equivalent to at least 10% hydrochloric acid by weight of the solution.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: October 7, 1986
    Assignee: Monsanto Europe S.A.
    Inventors: Michel A. O. Ledent, Bronislav H. May