Patents by Inventor Willis B. Hammond

Willis B. Hammond 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).

  • Polyoxazolidones derived from bisanhydrohexitols
    Patent number: 7947785
    Abstract: Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones are highly crosslinked, rigid, and have high solvent resistance.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: May 24, 2011
    Assignee: New Jersey Institute of Technology
    Inventors: Anthony J. East, Michael Jaffe, Willis B. Hammond, George Collins, Ronald N. DeMartino, Zohar Ophir
  • POLYOXAZOLIDONES DERIVED FROM BISANHYDROHEXITOLS
    Publication number: 20100298520
    Abstract: Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones are highly crosslinked, rigid, and have high solvent resistance.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 25, 2010
    Applicant: NEW JERSEY INSTITUTE OF TECHNOLOGY
    Inventors: Anthony J. East, Michael Jaffe, Willis B. Hammond, George Collins, Ronald N. DeMartino, Zohar Ophir
  • Fluorochemical composition for coating soil resistant yarn
    Patent number: 4605587
    Abstract: Improved retention on yarn and processing properties have been discovered in a composition of matter comprising meta and para pyromellitates ##STR1## and 2 to 50 percent by weight of specific dimers of I. and II., wherein A is (CH.sub.2).sub.2 (CF.sub.2).sub.n CF.sub.3, where n is 5 to 13 and B is CH.sub.2 CHOHCH.sub.2 Cl.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: August 12, 1986
    Assignee: Allied Corporation
    Inventors: Robert H. Thomas, Willis B. Hammond, Michael P. Friedberger, William A. Archie
  • Fluorochemical composition for coating soil resistant yarn
    Patent number: 4604316
    Abstract: Improved retention on yarn and processing properties have been discovered in a composition of matter comprising meta and para pyromellitates ##STR1## and 70 to 95 percent by weight of specific dimers and other oligomers of I. and II., wherein A is (CH.sub.2).sub.2 (CF.sub.2).sub.n CF.sub.3, where n is 5 to 13 and B is CH.sub.2 CHOHCH.sub.2 Cl.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: August 5, 1986
    Assignee: Allied Corporation
    Inventors: Robert H. Thomas, deceased, by Mary A. Thomas, executrix, Willis B. Hammond, Michael P. Friedberger, William A. Archie
  • Deuterium exchange between hydrofluorocarbons and amines
    Patent number: 4359368
    Abstract: The concentration of deuterium relative to hydrogen in a hydrofluorocarbon is increased by contacting the hydrofluorocarbon, in the presence of an alkali metal amide, with an amine having a concentration of deuterium that is greater than that which provides equilibrium with the hydrofluorocarbon. In a preferred embodiment, a compound enriched in deuterium is produced by first exposing trifluoromethane to infrared laser radiation to selectively cause a chemical reaction involving deuterium-containing molecules. The deuterium-depleted trifluoromethane is deuterium replenished by exchange with an amine, and the compound enriched in deuterium is converted to heavy water. Heavy water is useful in certain types of nuclear reactors.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: November 16, 1982
    Assignee: Allied Corporation
    Inventors: Willis B. Hammond, Jacob Bigeleisen, Sam A. Tuccio