Patents by Inventor Karl PAETZ-LAUTER

Karl PAETZ-LAUTER 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).

  • Extrusion expansion of low molecular weight polyalkylene terephthalate for production of expanded beads
    Patent number: 9174363
    Abstract: An extrusion expansion of low molecular weight polyalkylene terephthalates having an IV of below 1.0 dl/g to produce gas-charged beads is disclosed. The process includes an extrusion expanding of the resins and an underwater pelletizing of the melt threads. The obtained beads show a composite structure and are characterized by an IV of 0.69 dl/g or more and a melt viscosity ?0 of higher than 300 Pa·s.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: November 3, 2015
    Assignee: ARMACELL ENTERPRISE GMBH & CO.
    Inventors: Karl Paetz-Lauter, Jie Li, Mika Meller
  • EXTRUSION EXPANSION OF LOW MOLECULAR WEIGHT POLYALKYLENE TEREPHTHALATE FOR PRODUCTION OF EXPANDED BEADS
    Publication number: 20130059938
    Abstract: An extrusion expansion of low molecular weight polyalkylene terephthalates having an IV of below 1.0 dl/g to produce gas-charged beads is disclosed. The process includes an extrusion expanding of the resins and an underwater pelletizing of the melt threads. The obtained beads show a composite structure and are characterized by an IV of 0.69 dl/g or more and a melt viscosity ?0 of higher than 300 Pa·s.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Applicant: ARMACELL ENTERPRISE GMBH
    Inventors: Karl PAETZ-LAUTER, Jie LI, Mika MELLER