Patents by Inventor Pascal Wust

Pascal Wust 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).

  • Multilayer nonwoven structure
    Patent number: 12759261
    Abstract: A nonwoven fabric (NF) comprising a multilayer structure that comprises: i) at least one meltblown layer (M) comprising melt blown fibers (MBF) comprising a first propylene polymer (PP1) having: a) an amount of 2,1-regiodefects in the range from 0.0 to 0.1 mol-%; and b) a melting temperature Tm in the range from 155 to 170° C., ii) at least one spunbonded layer (S) comprising spunbonded fibers (SBF) comprising a second propylene polymer (PP2) having: a) an amount of 2,1-regiodefects in the range from 0.4 to 1.5 mol-%; and b) a melting temperature Tm in the range from 145 to 160° C. wherein the melting temperature of the first polypropylene polymer Tm (PP1) is at least 5.0° C. higher than that of the second first polypropylene polymer Tm (PP2).
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: October 13, 2026
    Assignee: Borealis AG
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Henk Van Paridon, Gustaf Tobieson, Wilhelmus Henricus Adolf Sars, Anita Luyten, Pascal Wust, Onur Uzun
  • PROPYLENE-BUTENE RANDOM COPOLYMER COMPOSITION WITH LOW EXTRACTABLE CONTENT
    Publication number: 20250129190
    Abstract: A propylene-butene random copolymer composition comprising 98 to 99.99 wt % of a propylene-butene random copolymer based on the total weight of the propylene-butene random copolymer composition, and 0.01 to 1 wt % based on the total weight of propylene-butene random copolymer composition of an alpha nucleating agent, the composition having a melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 in the range of from 20.0 to below 150.0 g/10 min a butene content in the range of from 4.0 to 8.5 wt % based on the total weight of the propylene-butene random copolymer, and a relative amount of <2,1> erythro regio-defects in the range of from 0.01 to 1.2 mol %, determined by quantitative 13C NMR spectroscopy, as described herein.
    Type: Application
    Filed: September 15, 2022
    Publication date: April 24, 2025
    Applicant: BOREALIS AG
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Lionel Delaviere, Pascal Wust
  • MULTILAYER NONWOVEN STRUCTURE
    Publication number: 20250083409
    Abstract: A nonwoven fabric (NF) comprising a multilayer structure that comprises: i) at least one meltblown layer (M) comprising melt blown fibers (MBF) comprising a first propylene polymer (PP1) having: a) an amount of 2,1-regiodefects in the range from 0.0 to 0.1 mol-%; and b) a melting temperature Tm in the range from 155 to 170° C., ii) at least one spunbonded layer (S) comprising spunbonded fibers (SBF) comprising a second propylene polymer (PP2) having: a) an amount of 2,1-regiodefects in the range from 0.4 to 1.5 mol-%; and b) a melting temperature Tm in the range from 145 to 160° C. wherein the melting temperature of the first polypropylene polymer Tm (PP1) is at least 5.0° C. higher than that of the second first polypropylene polymer Tm (PP2).
    Type: Application
    Filed: August 2, 2022
    Publication date: March 13, 2025
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Henk Van Paridon, Gustaf Tobieson, Wilhelmus Henricus Adolf Sars, Anita Luyten, Pascal Wust, Onur Uzun