Patents Assigned to The Dow Chemcial Company
  • Alkanolamine/carbon dioxide adduct and polyurethane foam therewith
    Patent number: 5789451
    Abstract: Disclosed is a carbamate adduct prepared by contacting carbon dioxide with an alkanolamine, preferably in a polar medium. The alkanolamine is characterized in that it consists of 1 or 2 ether linkages per molecule. The adduct finds value as a thermally decomposable blowing agent when preparing polyurethane foam and elastomeric products. Integral-skinned polyurethane products prepared in the presence of the carbamate adducts disclosed herein exhibit an enhanced abrasion resistance.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: August 4, 1998
    Assignee: The Dow Chemcial Company
    Inventors: Giuliano Guidetti, Luigi Pellacani, Maurizio Bottazzi