Patents by Inventor Nigel Shields

Nigel Shields 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: 9688808
    Abstract: Fiber reinforced epoxy resin composites are produced using a specific epoxy resin system. The epoxy resin system contains at least one polyglycidyl ether of a polyphenol. The system also contains a hardener that contains a mixture of aminocyclohexanealkylamine and polyalkylene polyamine hardeners. The ratio of epoxy resin groups to amine hydrogen groups is from 1.05 to 1.50. The epoxy resin system contains a tertiary amine catalyst such as a tertiaryaminophenol, a benzyl tertiary amine or an imidazole compound.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 27, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Radhakrishnan Karunakaran, Carol L. O'Connell, Nigel Shields, Nikhil K. Verghese, Martin Reimers
  • Patent number: 9309354
    Abstract: A two-component curable epoxy resin system is disclosed. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol that has an epoxy equivalent weight of up to about 200 and contains no more than 2% by weight of monohydrolyzed resin species.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: April 12, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Nigel Shields, Martin Reimers, Nikhil K. E. Verghese, Timothy A. Morley, Marty J. Null, Rajesh H. Turakhia
  • Publication number: 20140213698
    Abstract: A two-component curable epoxy resin system is disclosed. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol that has an epoxy equivalent weight of up to about 200 and contains no more than 2% by weight of monohydrolyzed resin species.
    Type: Application
    Filed: June 6, 2012
    Publication date: July 31, 2014
    Inventors: Nigel Shields, Martin Reimers, Nikhil K. E. Verghese, Timothy A. Morley, Marty J. Null, Rajesh H. Turakhia
  • Patent number: 8648148
    Abstract: Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of aesthetic, physical and mechanical properties, in particular good impact with low consistent gloss across an injection molded textured part, and a method for preparing such a composition.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: February 11, 2014
    Assignee: Styron Europe GmbH
    Inventors: Nigel A. Shields, Dominique Maes, Mary Ann Jones, Thomas D. Traugott
  • Publication number: 20130005853
    Abstract: Fiber reinforced epoxy resin composites are produced using a specific epoxy resin system. The epoxy resin system contains at least one polyglycidyl ether of a polyphenol. The system also contains a hardener that contains a mixture of aminocyclohexanealkylamine and polyalkylene polyamine hardeners. The ratio of epoxy resin groups to amine hydrogen groups is from 1.05 to 1.50. The epoxy resin system contains a tertiary amine catalyst such as a tertiaryaminophenol, a benzyl tertiary amine or an imidazole compound.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 3, 2013
    Inventors: Timothy A. Morley, Radhakrishnan Karunakaran, Carol L. O'Connell, Nigel Shields, Nikhil K. Verghese, Martin Reimers
  • Publication number: 20110040035
    Abstract: Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of aesthetic, physical and mechanical properties, in particular good impact with low consistent gloss across an injection molded textured part, and a method for preparing such a composition.
    Type: Application
    Filed: October 5, 2006
    Publication date: February 17, 2011
    Inventors: Nigel A. Shields, Dominique Maes, Mary Ann Jones, Thomas D. Traugott
  • Publication number: 20100210778
    Abstract: Disclosed is a carbonate polymer blend composition comprising (a) a carbonate polymer, (b) a propylene polymer, (c) a compatibilizing graft copolymer, (d) a polymer selected from a graft modified propylene polymer and/or an alpha-olefin carboxylic acid copolymer, and/or an olefin block copolymer, optionally (e) a filler, (f) optionally a thermoplastic resin other than (a), (b), (c), or (d) and (g) optionally one or more additive selected from stabilizers, pigments, mold release agents, flow enhancers, or antistatic agents. Said carbonate polymer blend composition has a good balance of physical properties, impact resistance, process-ability, and reduced gloss in molded articles.
    Type: Application
    Filed: August 25, 2008
    Publication date: August 19, 2010
    Inventors: Pascal E.R.E.J. Lakeman, Franciscus J.T. Krabbenborg, Thomas D. Traugott, Ronald Wevers, Nigel Shields
  • Patent number: 5041498
    Abstract: Rubber modified styrene-acrylonitrile (ABS) resins are provided which have three different types of rubber particles. One particle type is a small, emulsion-produced particle and another is a large emulsion-produced particle. The third particle type is a large, mass-polymerized graft copolymer particle which comprisees as its rubbery substrate a diene polymer ingredient containing at least about 80 weight percent of a polymerized diene monomer and which constitutes no more than about 30 weight percent of the total rubber components contained within the compositions of interest. The resulting compositions have very high gloss characteristics and reduced gloss sensitivity to molding condition variations.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: August 20, 1991
    Assignee: The Dow Chemical Company
    Inventors: Marie L. Hare, Patricia B. Leng, Nigel Shields, David E. Henton