Patents by Inventor C. H. McLean

C. H. McLean 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).

  • Polymerizable compositions
    Patent number: 5283160
    Abstract: A photopolymerisable composition comprising a polymerisable olefinically unsaturated compound and a photoinitiator composition(a) a photoinitiator comprising an anthraquinone compound having in the 2-position a substituent of the formula:--X COR.sup.1wherein R.sup.1 represents an optionally substituted hydrocarbyl radical and X represents ##STR1## wherein R.sup.2 represents hydrogen or an optionally substituted hydrocarbyl radical, and(b) a hydrogen donor capable of reducing the photoinitiator when the latter is in an excited state.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: February 1, 1994
    Assignee: Zeneca Limited
    Inventors: N. S. Allen, R. T. Cook, C. H. McLean, I. A. Weddell