Patents by Inventor Ronald N. May

Ronald N. May 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).

  • Polyether polyols, their manufacture and use in polyurethanes production
    Patent number: 4703069
    Abstract: This invention relates to polyether polyols having an average hydroxyl value in the range of 100 to 250 mgKOH/g, which are alkoxylated derivatives of a polyhydric alcohol being a mixture of compounds according to formula (I) or/and (II) ##STR1## wherein R.sup.1 is H, CH.sub.3 or OCH.sub.3,R.sup.2 is H, CH.sub.2 OH or CH.sub.2 C(CH.sub.2 OH).sub.3, andR.sup.3 and R.sup.4 areH, CH.sub.2 OH or CH.sub.2 OCH.sub.3.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: October 27, 1987
    Assignee: Imperial Chemical Industries plc
    Inventors: James P. Brown, Ronald N. May, David Randall
  • Polyether polyols containing hydroxymethyl substituted 1,3-dioxane for use in polyurethanes
    Patent number: 4590226
    Abstract: A polyether polyol having an average hydroxyl value in the range 400 to 650 mgKOH/g which is a alkoxylated derivative of a polyhydric alcohol being itself a single compound or a mixture of compounds according to the general formula (I) ##STR1## where R.sup.1 is --H, --CH.sub.3 or OCH.sub.3R.sup.2 is --H, --CH.sub.2 OH or --CH.sub.2 C(CH.sub.2 OH).sub.3The preparation of polyurethanes, including rigid foams, using these polyols, is also disclosed.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: May 20, 1986
    Assignee: Imperial Chemical Industries Inc.
    Inventors: James P. Brown, William G. Carroll, Ronald N. May, Erik M. B. Merckx, David J. Sparrow