Patents by Inventor John Lean

John Lean 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: 8435411
    Abstract: Methods of removing impurities from an impurity-loaded organic salt solution by intermixing the impurity-loaded organic salt solution with a stripping solution to form a biphasic mixture, wherein the intermixing effectively reduces the concentration of impurities in the impurity-loaded organic salt, thereby removing impurities from the organic salt and forming an impurity-reduced organic salt solution phase and a stripping solution phase are provided herein.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: May 7, 2013
    Assignee: Cytec Technology Corp.
    Inventors: John Lean, Scott Griffin, Matthew Taylor
  • Publication number: 20110140037
    Abstract: Methods of removing impurities from an impurity-loaded organic salt solution by intermixing the impurity-loaded organic salt solution with a stripping solution to form a biphasic mixture, wherein the intermixing effectively reduces the concentration of impurities in the impurity-loaded organic salt, thereby removing impurities from the organic salt and forming an impurity-reduced organic salt solution phase and a stripping solution phase are provided herein.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 16, 2011
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: John LEAN, Scott GRIFFIN, Matthew TAYLOR
  • Publication number: 20060141150
    Abstract: The present invention discloses a process for producing a core-shell polymer that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, optional one crosslinking monomer (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier to produce a polymerization medium, and (4) initiating free radical polymerization within the polymerization medium to produce a core polymer, wherein the core contains a free radical control agents, (5) adding a second monomer to the polymerization medium containing the core polymer, and (6) allowing polymerization to proceed in the presence of the free radical control agent to produce the core-shell polymer.
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Inventors: Lei Zheng, John Lean, Eric Castner, Thierry Florent Materne, Dane Parker, Frank Feher
  • Publication number: 20050288393
    Abstract: A thermoplastic elastomer composition comprised of (a) a thermoplastic resin selected from the group consisting of polyphenylene ether, polypropylene, polyethylene, and polystyrene, (b) a block copolymer selected from the group consisting of styrene-ethylene butylene-styrene, styrene-ethylene propylene-styrene, hydrogenated polybutadiene, hydrogenated polyisoprene, hydrogenated styrene-isoprene random copolymer, styrene-ethylene propylene block copolymer, styrene-ethylene ethylene propylene-styrene and hydrogenated styrene-butadiene random copolymers, (c) a core-shell polymer comprised of a polymeric core and a polymeric shell with the proviso that the polymeric core and/or the polymeric shell may be crosslinked, and (d) an oil.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 29, 2005
    Inventors: John Lean, Manoj Ajbani, Eric Castner, Lei Zheng, Christopher Kiehl