Patents by Inventor Carsten Buschmann

Carsten Buschmann 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).

  • Process for the purification of a polycarbodiimide
    Patent number: 9481641
    Abstract: A process for purifying a polycarbodiimide comprising (a) providing a mixture comprising a polycarbodiimide and a carbodiimidization catalyst; (b) separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture according to (a) to a first distillation, (c) adding an entrainer to the first bottom product obtained from (b) to obtain a mixture; (d) further separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture obtained from (c) to a second distillation.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: November 1, 2016
    Assignee: BASF SE
    Inventors: Karl Haeberle, Maria Teresa Hechavarria Fonseca, Lars Rehling, Frank Schaefer, Fatemeh Ahmadnian, Heinrich Bollmann, Markus Bubolz, Carsten Buschmann, Guenter Scholz, Maria Thomas
  • PROCESS FOR THE PURIFICATION OF A POLYCARBODIIMIDE
    Publication number: 20150225336
    Abstract: A process for purifying a polycarbodiimide comprising (a) providing a mixture comprising a polycarbodiimide and a carbodiimidization catalyst; (b) separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture according to (a) to a first distillation, (c) adding an entrainer to the first bottom product obtained from (b) to obtain a mixture; (d) further separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture obtained from (c) to a second distillation.
    Type: Application
    Filed: September 19, 2013
    Publication date: August 13, 2015
    Applicant: BASF SE
    Inventors: Karl Haeberle, Maria Teresa Hechavarria Fonseca, Lars Rehling, Frank Schaefer, Fatemeh Ahmadnian, Heinrich Bollmann, Markus Bubolz, Carsten Buschmann, Guenter Scholz, Maria Thomas