Patents by Inventor Mark T. Phillips

Mark T. Phillips 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).

  • Redispersible polymer powders by redistribution of polyvinyl alcohol dispersant
    Patent number: 5473013
    Abstract: A process for making a spray dried redispersible polymer powder, especially a VAE copolymer powder, by spray drying a polymer emulsion containing a polyvinyl alcohol redispersant. A sufficient amount of the total polyvinyl alcohol redispersant is added to the polymer emulsion prior to spray drying and the remaining amount of polyvinyl alcohol redispersant is added as a dry powder to the spray dried polymer powder.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: December 5, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thomas E. Zeller, Randall P. Bright, Mark T. Phillips