Patents by Inventor Alan Nevin

Alan Nevin 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).

  • Liquid crystal devices
    Patent number: 4965017
    Abstract: An alignment layer for a liquid crystal display consists at least substantially of a polyphenylene polymer wherein at least 80% of the said polyphenylene polymer is composed of aromatic phenylene rings. The alignment layer is capable of providing a homogeneous alignment of liquid crystal molecules disposed adjacent thereto with a high tilt bias angle.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: October 23, 1990
    Assignees: Imperial Chemical Industries PLC, BBC Brown Boveri Ltd.
    Inventors: Paul Holmes, Alan Nevin, Hermann Amstutz, Jurgen Nehring
  • Polyaromatics
    Patent number: 4798742
    Abstract: A process for the preparation of a polyphenylene layer which comprises the steps of treating a copolycyclohexa-3,4-diene under first conditions to aromatize a portion of the aromatic rings and then under second conditions to aromatize the residual cyclohexadiene rings from the first treatment.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: January 17, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: Denis G. H. Ballard, Paul A. Holmes, Alan Nevin, Ian M. Shirley, David L. Twose
  • Polymer coatings
    Patent number: 4791028
    Abstract: A process for the preparation of a polymer composition which comprises a polyarylene which process comprises treating a first composition comprising a polycyclohexadiene, a suitable additive and a solvent for the polycyclohexadiene to a suitable heat treatment such that at least a major portion of the cyclohexenylene rings in the polycyclohexadiene are converted into aromatic groups.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: December 13, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Alan Nevin, Ian Shirley