Patents by Inventor Guido Boelaers

Guido Boelaers 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).

  • Patent number: 11591444
    Abstract: The present invention refers to a structure comprising a biaxially oriented polypropylene (BOPP) film having at least one layer comprising a homopolymer of propylene which layer is in contact with an oil phase, the homopolymer of propylene has a) a content of isotactic pentads in the range from 95% to 98%, and b) a content of ash of not more than 30 ppm, based on the total weight of the homopolymer of propylene, characterized in that the oil phase has an absorbance value of ?0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity. The present invention further refers to the use of a biaxially oriented polypropylene (BOPP) film for making capacitors comprising said structure, wherein the oil phase has an absorbance value of ?0.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: February 28, 2023
    Assignee: Borealis AG
    Inventors: Franciscus Jacobs, Guido Boelaers, Dietrich Gloger, Helmut Rinnerthaler
  • Patent number: 10886070
    Abstract: The present invention is a structure comprising a biaxially oriented film having a layer comprising a homopolymer of propylene which layer is in contact with oil, characterised in that the homopolymer of propylene has a content of isotactic pentads of from 95% to 98% and a content of ash of not more than 30 ppm.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: January 5, 2021
    Assignee: BOREALIS AG
    Inventors: Franciscus Jacobs, Guido Boelaers
  • Publication number: 20200040150
    Abstract: The present invention refers to a structure comprising a biaxially oriented polypropylene (BOPP) film having at least one layer comprising a homopolymer of propylene which layer is in contact with an oil phase, the homopolymer of propylene has a) a content of isotactic pentads in the range from 95% to 98%, and b) a content of ash of not more than 30 ppm, based on the total weight of the homopolymer of propylene, characterized in that the oil phase has an absorbance value of ?0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity. The present invention further refers to the use of a biaxially oriented polypropylene (BOPP) film for making capacitors comprising said structure, wherein the oil phase has an absorbance value of ?0.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 6, 2020
    Inventors: Franciscus Jacobs, Guido Boelaers, Dietrich Gloger, Helmut Rinnerthaler
  • Patent number: 10519570
    Abstract: The present invention is directed to a new polypropylene composition, polypropylene fibres comprising said polypropylene composition, a spunbonded fabric comprising said polypropylene fibres and/or polypropylene composition, an article comprising said polypropylene fibres and/or said spunbonded fabric as well as to a process for the preparation of such spunbonded fabric and the use of such polypropylene composition for improving the stability of a fibre spinning line.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: December 31, 2019
    Assignee: BOREALIS AG
    Inventors: Guido Boelaers, Bert Broeders, Joachim Fiebig, Henk Van Paridon
  • Publication number: 20180108484
    Abstract: The present invention is a structure comprising a biaxially oriented film having a layer comprising a homopolymer of propylene which layer is in contact with oil, characterised in that the homopolymer of propylene has a content of isotactic pentads of from 95% to 98% and a content of ash of not more than 30 ppm.
    Type: Application
    Filed: April 26, 2016
    Publication date: April 19, 2018
    Inventors: Franciscus Jacobs, Guido Boelaers
  • Publication number: 20150024650
    Abstract: The present invention is directed to a new polypropylene composition, polypropylene fibres comprising said polypropylene composition, a spunbonded fabric comprising said polypropylene fibres and/or polypropylene composition, an article comprising said polypropylene fibres and/or said spunbonded fabric as well as to a process for the preparation of such spunbonded fabric and the use of such polypropylene composition for improving the stability of a fibre spinning line.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 22, 2015
    Inventors: Guido Boelaers, Bert Broeders, Joachim Fiebig, Henk Van Paridon
  • Publication number: 20090274921
    Abstract: Terpolymer of propylene, ethylene and C4 to C8 ?-olefin with good barrier properties and processing properties, wherein the amount of propylene in said terpolymer is at least 94 percent by weight and the melting temperature of said terpolymer is more than 140° C.
    Type: Application
    Filed: June 2, 2009
    Publication date: November 5, 2009
    Inventors: Nina Ackermans, Mark De Ryck, Guido Boelaers