Patents by Inventor Colin Loyns

Colin Loyns 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).

  • Retarder composition
    Patent number: 9133288
    Abstract: The invention relates to a retarder composition for the control of unwanted polymerization reactions during the production and processing of ethylenically unsaturated compounds, the composition comprising at least one di-substituted quinone compound and at least one hydroxylamine compound. Optionally, the composition also comprises at least one stable free radical nitroxyl compound and one or more formulation adjuvants. The invention also envisages a process stream comprising at least one ethylenically unsaturated compound, and a method for the prevention of unwanted polymerization reactions during the production and processing of ethylenically unsaturated compounds. The composition has been found to be far more effective than expected, given that the individual components show little or no efficacy when used alone, and poses much less hazard to humans than the compositions of the prior art.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 15, 2015
    Assignee: NUFARM UK LIMITED
    Inventors: Colin Loyns, Andrew Nigel Fawbert, Angela Jane Glossop, Peter Mark Price
  • Retarder Composition
    Publication number: 20130116486
    Abstract: The invention relates to a retarder composition for the control of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds, the composition comprising at least one di-substituted quinone compound and at least one hydroxylamine compound. Optionally, the composition also comprises at least one stable free radical nitroxyl compound and one or more formulation adjuvants. The invention also envisages a process stream comprising at least one ethylenically unsaturated compound, and a method for the prevention of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds. The composition has been found to be far more effective than expected, given that the individual components show little or no efficacy when used alone, and poses much less hazard to humans than the compositions of the prior art.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 9, 2013
    Applicant: NUFARM UK LIMITED
    Inventors: Colin Loyns, Andrew Nigel Fawbert, Angela Jane Glossop, Peter Mark Price
  • INHIBITION OF POLYMERISATION
    Publication number: 20100168434
    Abstract: The present invention provides methods and compositions for inhibiting polymerisation of ethylenically unsaturated monomers, which involve the use of nitroxide compound of formula (I): wherein R1 is C4-20 hydrocarbyl; and R2, R3, R4 and R5 are independently each C1-6 alkyl.
    Type: Application
    Filed: October 19, 2006
    Publication date: July 1, 2010
    Applicant: A H MARKS AND COMPANY LIMITED
    Inventors: Richard Colin Loyns, Edward David Rippon, Emyr Phillips
  • Polymerisation inhibitor
    Publication number: 20060167244
    Abstract: A polymerisation inhibitor comprising a non-hindered cyclic hydroxylamine either alone or in combination with an additional inhibitor.
    Type: Application
    Filed: May 30, 2003
    Publication date: July 27, 2006
    Inventors: Emyr Philips, Colin Loyns