Patents by Inventor Hans Staudenmayer

Hans Staudenmayer 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).

  • Method for the production of aliphatic polyesters
    Patent number: 9376530
    Abstract: The present invention relates to a method for the production of aliphatic polyesters in a two-step method. There are thereby added, in a first step, to a precondensate of an aliphatic dicarboxylic acid or to a mixture of aliphatic dicarboxylic acids and an aliphatic dialcohol or to a mixture of aliphatic dialcohols, further monomeric components, i.e. further aliphatic dicarboxylic acids and also a further aliphatic dialcohol, a polyester prepolymer being obtained. In a further step, polycondensation of the prepolymer obtained in the first step is effected.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: June 28, 2016
    Assignee: Uhde Inventa-Fischer GmbH
    Inventors: Christopher Hess, Hans Staudenmayer
  • METHOD FOR THE PRODUCTION OF ALIPHATIC POLYESTERS
    Publication number: 20150065678
    Abstract: The present invention relates to a method for the production of aliphatic polyesters in a two-step method. There are thereby added, in a first step, to a precondensate of an aliphatic dicarboxylic acid or to a mixture of aliphatic dicarboxylic acids and an aliphatic dialcohol or to a mixture of aliphatic dialcohols, further monomeric components, i.e. further aliphatic dicarboxylic acids and also a further aliphatic dialcohol, a polyester prepolymer being obtained. In a further step, polycondensation of the prepolymer obtained in the first step is effected.
    Type: Application
    Filed: December 10, 2012
    Publication date: March 5, 2015
    Applicant: UHDE INVENTA-FISCHER GMBH
    Inventors: Christopher Hess, Hans Staudenmayer