Patents by Inventor Robert J. Kufrin

Robert J. Kufrin 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).

  • Patent number: 4110268
    Abstract: In the preparation of normally liquid polyether polyols for use in the production of polyurethane foams, alkaline or basic catalysts, such as potassium hydroxide, which are employed in the process of preparing said polyether polyols, are neutralized with (a) oleic acid or with (b) oleic acid and higher molecular weight alkylbenzene or alkyltoluene sulfonic acids such as dodecylbenzene sulfonic acids and dodecyltoluene sulfonic acids, or such alkylnaphthalene sulfonic acids as butyl- or amylnaphthalene sulfonic acids, which results in a number of advantages, including reducing or eliminating purification procedures, producing polyether polyol compositions which have improved solubility, particularly in higher molecular weight polyols or polyol ethers and also in certain ingredients used in the polyurethane foam formulations in which said specially neutralized polyether polyols are used, and reducing catalyst costs in the process of producing polyurethane foams from said polyether polyol compositions.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: August 29, 1978
    Assignee: Witco Chemical Corporation
    Inventors: Kermit D. Longley, Robert Herke, Robert J. Kufrin