Patents by Inventor Rafael Warsitz

Rafael Warsitz 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 preparation of purified elastomers from solution
    Patent number: 7071292
    Abstract: The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates to elastomers which can be obtained by the method according to the present invention, to the use of the elastomers for the production of all types of products, and to the product which is produced by processing the elastomer which can be obtained by the method according to the present invention.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 4, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dirk Achten, Rafael Warsitz, Gregor Dudziak, Franz-Josef Mersmann, Stephen Pask, Zsolt Szentivanyi
  • Method for the preparation of purified elastomers from solution
    Publication number: 20050197486
    Abstract: The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates to elastomers which can be obtained by the method according to the present invention, to the use of the elastomers for the production of all types of products, and to the product which is produced by processing the elastomer which can be obtained by the method according to the present invention.
    Type: Application
    Filed: October 12, 2004
    Publication date: September 8, 2005
    Inventors: Dirk Achten, Rafael Warsitz, Gregor Dudziak, Franz-Josef Mersmann, Stephen Pask, Zsolt Szentivanyi
  • Process for separating dissolved or colloidal solids from a nonaqueous solvent
    Publication number: 20040168981
    Abstract: Process for the separation of substances present in dissolved and/or colloidal form, in particular of catalysts, from solutions in a nonaqueous solvent, with the aid of a membrane, wherein the solution is passed through a membrane which has a hydrophobic coating and a mean pore size of not more than 30 nm.
    Type: Application
    Filed: February 9, 2004
    Publication date: September 2, 2004
    Applicant: Bayer Aktiengesellschaft
    Inventors: Gregor Dudziak, Andreas Nickel, Kerstin Baumarth, Martina Mutter, Olaf Strange, Rafael Warsitz