Patents Assigned to POLYMER RESEARCH & DEVELOPMENT
  • Process for producing high-performance polymer fibers
    Patent number: 9205589
    Abstract: The present invention relates to a process for the preparation of polymer filaments having a high tensile strength and modulus by extrusion of a solution of a solvent and linear high-molecular weight polymer and subsequent spinning and quenching of the filaments thus formed, wherein after spinning and quenching the as-spun filaments are stretched under contact with steam for removing the solvent from filaments being stretched.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: December 8, 2015
    Assignee: POLYMER RESEARCH & DEVELOPMENT
    Inventors: Pieter Jan Lemstra, Robert Marc Fifield, Altug Altay
  • PROCESS FOR PRODUCING HIGH-PERFORMANCE POLYMER FIBERS
    Publication number: 20130241105
    Abstract: The present invention relates to a process for the preparation of polymer filaments having a high tensile strength and modulus by extrusion of a solution of a solvent and linear high-molecular weight polymer and subsequent spinning and quenching of the filaments thus formed, wherein after spinning and quenching the as-spun filaments are stretched under contact with steam for removing the solvent from filaments being stretched.
    Type: Application
    Filed: October 5, 2011
    Publication date: September 19, 2013
    Applicant: POLYMER RESEARCH & DEVELOPMENT
    Inventors: Pieter Jan Lemstra, Robert Marc Fifield, Altug Altay