Patents by Inventor Alan Graham MacDiarmid

Alan Graham MacDiarmid 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).

  • Publication number: 20090014920
    Abstract: The invention relates to polymer filaments and methods for their production. In particular, although not exclusively, the invention relates to conducting polymer filaments and their production from solutions of polymerisable oxidizable monomer units.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 15, 2009
    Applicant: MASSEY UNIVERSITY
    Inventors: Warwick John Belcher, Alan Graham MacDiarmid, David Leslie Officer, Simon Berners Hall
  • Patent number: 6140462
    Abstract: The present invention is directed to oxidative and reductive methods of fabricating electrically conducting polymers and precursors thereof in particular polyanilines in which the polymer chains are deaggregated. Such deaggregated conducting polymers and precusors thereof exhibit better processability and higher electrical conductivity than do the corresponding aggregated polymers. Substituted and unsubstituted polyanilines in the substantially non oxidized or non reduced form (emeraldine form) are converted to an intermediate deaggregated reduced or oxidized form. The intermediate reduced or oxidized deaggregated form is processed into an article. The articles is subsequently treated with a dopant and an oxidizing or reducing agent to reform the original substantially non oxidized or non reduced form. The methods described herein permit the formation of articles such as shaped articles and films having deaggregated structure and higher electrical conductivity.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: October 31, 2000
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Alan Graham MacDiarmid, Weigong Zheng