Patents by Inventor Peter Jansens

Peter Jansens 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 producing and purifying aqueous phases
    Patent number: 8362299
    Abstract: The present invention relates to a method for purifying an unpurified phase, containing a target product, preferably (meth)acrylic acid, water, and at least one impurity differing from the target product and from water comprising: a) crystallizing the target product and water; b) separating the crystals from the mother liquor created in step a); c) melting at least part of the separated crystals to form a melt; and d) recycling at least part of said melt to step b). The invention further relates to a method for the production of a purified phase, containing a target product and water, a method for the production of a polymer based on (meth)acrylic acid, polymers that may be obtained by means of said method, chemical products, such as fibers or molded bodies, and the use of polymers.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: January 29, 2013
    Assignee: Evonik Stockhausen GmbH
    Inventors: Axel Hengstermann, Franz-Felix Kuppinger, Jorg Leistner, Jurgen Mosler, Peter Jansens
  • METHOD FOR PRODUCING AND PURIFYING AQUEOUS PHASES
    Publication number: 20110046297
    Abstract: The present invention relates to a method for purifying an unpurified phase, containing a target product, preferably (meth)acrylic acid, water, and at least one impurity differing from the target product and from water comprising: a) crystallizing the target product and waters; b) separating the crystals from the mother liquor created in step a); c) melting at least part of the separated crystals to form a melt; and d) recycling at least part of said melt to step b). The invention further relates to a method for the production of a purified phase, containing a target product and water, a method for the production of a polymer based on (meth)acrylic acid, polymers that may be obtained by means of said method, chemical products, such as fibers or molded bodies, and the use of polymers.
    Type: Application
    Filed: March 11, 2009
    Publication date: February 24, 2011
    Inventors: Axel Hengstermann, Franz-Felix Kuppinger, Jorg Leistner, Jurgen Mosler, Peter Jansens