Patents by Inventor Willis Hammond

Willis 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).

  • Patent number: 10377765
    Abstract: An AB monomer, useful for the production of condensation polymers, wherein the AB monomer has the structure: A-X-C-Y-B; wherein A is reactive carbonyl derivative of carboxylic acids; Y is a bisanhydrohexitol unit derived from the group consisting of isosorbide, isoidide and isomannide; X is selected from the group consisting of: aromatic rings, including 1,4-phenylene, 1,3-phenylene, 2,6-naphthalene 2,7-naphthalene, and substituted derivatives thereof; heterocycles including, 2,5-furan, 2,5-thiophene, substituted 2,5-furan and substituted 2,5-thiophene; and saturated or unsaturated aliphatic chains; B is OH; and C is selected from the group consisting of ether oxygen, a sulfide, and an amine, wherein the amine is NH or NR wherein R is C1 to C6, attaching X to Y.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 13, 2019
    Assignee: New Jersey Institute of Technology
    Inventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
  • Patent number: 10364251
    Abstract: An AB monomer, useful for the production of condensation polymers, wherein the AB monomer has the structure: A—X—C—Y—B; wherein A is a carboxylic acid or ester or reactive carbonyl derivative, Y is a bisanhydrohexitol unit derived from isosorbide, isoidide or isomannide; X is selected from the group consisting of aromatic rings, substituted or unsubstituted heterocycles, and saturated or unsaturated aliphatic chains; and B is OH and C is an ester carbonyl link with the carbon attached to X and the oxygen attached to Y, and wherein the AB monomer is at least about 98% pure endo-substituted bisanhydrohexitol derivative or an at least about 98% pure exo-substituted bisanhydrohexitol derivative.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 30, 2019
    Assignee: New Jersey Institute of Technology
    Inventors: Anthony East, Willis Hammond, Michael Jaffe, Xianhong Feng
  • Publication number: 20170210750
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as AB monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: February 2, 2017
    Publication date: July 27, 2017
    Inventors: Anthony East, Willis Hammond, Michael Jaffe, Xianhong Feng
  • Patent number: 9605108
    Abstract: Isosorbide-derived epoxies and methods of making same are disclosed. Isosorbide and its isomers are attached to glycidyl ether to make crosslinkable epoxy resin monomers. Adding the hydrophobic functional group into the backbone of isosorbide epoxy or adjusting the amount and type of crosslinker is operable to modify the mechanical properties and water uptake ratio (from <1 wt % to >50 wt %) of the isosorbide-derived epoxies for different uses. High water uptake epoxies with controllable biodegradation rate are suitable for drug delivery systems or extracellular matrices for biomedical applications, while low water uptake epoxies with strong mechanical properties may be used for can coatings, bone cements and other industrial additives and adhesives.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 28, 2017
    Assignee: New Jersey Institute of Technology
    Inventors: Willis Hammond, Anthony East, Michael Jaffe, Xianhong Feng
  • Patent number: 9580544
    Abstract: A process for producing copolymers of a polymer and asymmetrically substituted compounds of bisanhydrohexitols, including the bisanhydrohexitol isosorbide. In a specific example, the AB monomer isosorbide 2-(4-carbomethoxybenzoate) is synthesized and copolymerized with polyester to form a copolyester. The asymmetrically substituted compounds provide a way of incorporating bisanydrohexitols that may be derived from natural sources into polymers.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 28, 2017
    Assignee: New Jersey Institute of Technology
    Inventors: Anthony East, Michael Jaffe, Willis Hammond, Xianhong Feng
  • Publication number: 20160369046
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 22, 2016
    Inventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
  • Patent number: 9447230
    Abstract: A process for producing a copolyester through the production of an AB monomer of isoidide - Isodide 2-(4-carbomethoxyphenyl) ether. In certain aspects, the AB monomer is produced by performing the steps of: protecting the 2-position of isosorbide with a protecting group; functionalizing the 5-position of isosorbide with a suitable leaving group to form a reactive ester; nucleophilicly displacing the leaving group in a reaction with an alkali metal alkoxide or phenoxide to give an isoidide ether through a stereochemical inversion of the 5-position; and removing the protective moiety to create the AB monomer. In certain embodiments, the copolyester is produced by melting the AB monomer and a polyester, optionally with a catalyst.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 20, 2016
    Assignee: New Jersey Institute of Technology
    Inventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
  • Publication number: 20150307650
    Abstract: Isosorbide-derived epoxies and methods of making same are disclosed. Isosorbide and its isomers are attached to glycidyl ether to make crosslinkable epoxy resin monomers. Adding the hydrophobic functional group into the backbone of isosorbide epoxy or adjusting the amount and type of crosslinker is operable to modify the mechanical properties and water uptake ratio (from <1 wt % to >50 wt %) of the isosorbide-derived epoxies for different uses. High water uptake epoxies with controllable biodegradation rate are suitable for drug delivery systems or extracellular matrices for biomedical applications, while low water uptake epoxies with strong mechanical properties may be used for can coatings, bone cements and other industrial additives and adhesives.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 29, 2015
    Inventors: Willis Hammond, Anthony East, Michael Jaffe, Xianhong Feng
  • Publication number: 20110257346
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: March 17, 2011
    Publication date: October 20, 2011
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East
  • Publication number: 20110237757
    Abstract: Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as AB monomers. The synthesis of polymers from the monomers is also described.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 29, 2011
    Applicant: IOWA CORN PROMOTION BOARD
    Inventors: Anthony East, Willis Hammond, Michael Jaffe, Xianhong Feng
  • Patent number: 5137929
    Abstract: The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of additives which decrease the formation of haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, catalyst, surfactant, and at least one additive wherein the additive is capable of decreasing the amount of decomposition of said dehydrohalocarbon blowing agent to haloalkenes during polymerization of the polyisocyanate and the polyol.Depending upon the polyol and polyisocyanate used and the quantity of polyisocyanate used, the compositions may be used in pour-in-place molded foams; rigid urethane spray foams; rigid high and low density foams for slabstock, froth foams, and molded foams; rigid laminated boardstock; or specialty foams.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: August 11, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Timothy R. Demmin, Richard E. Eibeck, Gary M. Knopeck, Robert C. Parker, Donna M. Ruszaj, Stephen F. Yates, George D. Green, Keith A. Horn, Willis Hammond, Raymond H. P. Thomas