Patents Assigned to Epik Entwicklung Und Produktion Innovativer Kunstoffe GmbH
  • Method for producing polyols and polyols
    Patent number: 6683119
    Abstract: The present invention provides an improved process for producing polyols from polyurethane wastes. The polyols produced by that process are further used to generate polyurethanes. According to the present invention polyurethane wastes are added to a mixture of at least one diol and at least one secondary alkyl amine and reacted at temperatures in the range of 120 to 220° to produce a mixture of polyether alcohols with a dissolved or dispersed mixture of substituted ureas.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: January 27, 2004
    Assignees: Epik Entwicklung Und Produktion Innovativer Kunstoffe GmbH
    Inventor: Gerhard Behrendt