Patents by Inventor Anne L. Pacheco

Anne L. Pacheco 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).

  • Preparation of carboxylic acid-containing polyurethane prepolymers and aqueous dispersions thereof
    Patent number: 4460738
    Abstract: Disclosed is a process for making carboxylic acid-containing mono- and polyether polyol addition products by reacting maleic acid, fumaric acid, itaconic acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator. Also disclosed are the processes of making polyurethane prepolymers and aqueous polyurethane dispersions from these carboxylic acid-containing mono- and polyether polyol addition products and processes for using these dispersions in coatings, adhesives and other useful products.
    Type: Grant
    Filed: March 16, 1983
    Date of Patent: July 17, 1984
    Assignee: Olin Corporation
    Inventors: Richard L. Frentzel, Louis Rua, Jr., Anne L. Pacheco