Patents by Inventor Lothar Weller

Lothar Weller 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).

  • A PROCESS FOR PRODUCING A THREE-DIMENSIONAL GREEN BODY BY A FUSED FILAMENT FABRICATION (FFF) PROCESS
    Publication number: 20200156283
    Abstract: The invention relates to a process for producing a three-dimensional green body by a fused filament fabrication process employing at least one filament, which comprises a core material (CM) coated with a layer of a shell material (SM), and a three-dimensional extrusion printer (3D printer). The three-dimensional extrusion printer 0 contains at least one nozzle and at least one mixing element. The invention further relates to three-dimensional objects and an extruded strand obtained by the process.
    Type: Application
    Filed: July 31, 2018
    Publication date: May 21, 2020
    Inventors: Jordan Thomas KOPPING, Lothar WELLER, Felix Arndt VOLKMANN, Sebastian Mathias SCHILLO, Daniel LEUTZ
  • Coated polyoxymethylenes
    Patent number: 8029912
    Abstract: The present invention relates to coated polyoxymethylene moldings comprising at least one polyoxymethylene homo- or copolymer A), and also, if appropriate, further additives B), which has been coated on the surface with at least one binder C) and one formaldehyde scavenger D), wherein the binder C) used comprises a polyalkylene oxide C1 or a polyvinyl ester C2 or a graft polymer C3 composed of C1 and C2 or a mixture of these, and the formaldehyde scavenger D) used comprises at least one imidazolidin-2-one compound.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: October 4, 2011
    Assignee: BASF SE
    Inventors: Karthikeyan Sharavanan, Jens Assmann, Lidcay Herrera Taboada, Rainer Anderlik, Lothar Weller, Michael Prinz, Jürgen Demeter
  • COATED POLYOXYMETHYLENES
    Publication number: 20100324184
    Abstract: The present invention relates to coated polyoxymethylene moldings comprising at least one polyoxymethylene homo- or copolymer A), and also, if appropriate, further additives B), which has been coated on the surface with at least one binder C) and one formaldehyde scavenger D), wherein the binder C) used comprises a polyalkylene oxide C1 or a polyvinyl ester C2 or a graft polymer C3 composed of C1 and C2 or a mixture of these, and the formaldehyde scavenger D) used comprises at least one imidazolidin-2-one compound.
    Type: Application
    Filed: February 5, 2009
    Publication date: December 23, 2010
    Applicant: BASF SE
    Inventors: Karthikeyan Sharavanan, Jens Assmann, Lidcay Herrera Taboada, Rainer Anderlik, Lothar Weller, Michael Prinz, Jürgen Demeter