Patents by Inventor Gert J. Claasen

Gert J. Claasen 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: 10967619
    Abstract: A stretch-modified elastomeric multilayer film comprising a core layer comprising a first ethylene-?-olefin block copolymer, wherein the first ethylene-?-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (I2) from 0.5 g/10 min to 5 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, and at least one outer layer independently comprising a second ethylene-?-olefin block copolymer and from 2.5 to 30 wt. % of an antiblock agent, wherein the second ethylene-?-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (I2) from 0.5 g/10 min to 25 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, wherein the density of the first ethylene-?-olefin block copolymer is equal to or greater than the density of the second ethylene-?-olefin block copolymer.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 6, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Andy C. Chang, Jacquelyn A. Degroot, Kate R. Brown, Aleksandar Stoiljkovic, Gert J. Claasen, Barbara Bonavoglia, Carlos E. Ruiz
  • Patent number: 10391739
    Abstract: The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more ?-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: August 27, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Barbara Bonavoglia, Gert J. Claasen, Jacquelyn A. Degroot, Selim Bensason
  • Patent number: 10131114
    Abstract: The instant invention provides nonwoven fabrics and staple or binder fibers prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0.970 g/cm3, a melt index (12) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz/Mw) in the range of from less than 2.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: November 20, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Jacquelyn A Degroot, Gert J. Claasen, Selim Bensason, Mehmet Demirors, Thor Gudmundsson, Jason C. Brodil
  • Patent number: 9873958
    Abstract: Fibers made a polyethylene composition, and method of making the same. The polyethylene composition comprises less than or equal to 100 percent by weight of the units derived from ethylene and less than 20 percent by weight of units derived from one or more ?-olefin comonomers; wherein said polyethylene composition has a density in the range of 0.930 to 0.960 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 1 to 300 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, a shear viscosity in the range of 20 to 250 Pascal-s at 3000 s?1 shear rate measured at 190° C., vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition; and wherein the fiber is a monocomponent meltspun fiber.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: January 23, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Randy E. Pepper, Mridula Babli Kapur, Gert J. Claasen, Edward N. Knickerbocker, Nathan J. Wiker, William J. Michie, Jr., Mark B. Davis
  • Publication number: 20170341836
    Abstract: A package formed from a multilayer structure which comprises a nonwoven layer; a coextruded multilayer film having a polyolefin-based sealant layer with a melting point of equal to or less than 127° C.; wherein the nonwoven layer forms an outer layer of the package is provided.
    Type: Application
    Filed: August 28, 2015
    Publication date: November 30, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Shaun Parkinson, Gert J. Claasen, Kurt Brunner
  • Publication number: 20170253012
    Abstract: A stretch-modified elastomeric multilayer film comprising a core layer comprising a first ethylene-?-olefin block copolymer, wherein the first ethylene-?-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (12) from 0.5 g/10 min to 5 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, and at least one outer layer independently comprising a second ethylene-?-olefin block copolymer and from 2.5 to 30 wt. % of an antiblock agent, wherein the second ethylene-?-olefin block copolymer comprises at least 50 mol. % ethylene, has a melt index (12) from 0.5 g/10 min to 25 g/10 min, and has a density of 0.850 g/cc to 0.890 g/cc, wherein the density of the first ethylene-?-olefin block copolymer is equal to or greater than the density of the second ethylene-?-olefin block copolymer.
    Type: Application
    Filed: September 21, 2015
    Publication date: September 7, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Andy C. Chang, Jacquelyn A. Degroot, Kate R. Brown, Aleksandar Stoiljkovic, Gert J. Claasen, Barbara Bonavoglia, Carlos E. Ruiz
  • Patent number: 9683096
    Abstract: A polypropylene impact copolymer is disclosed. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C4-C10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C4-C10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the dispersed phase intrinsic viscosity (IV) to the matrix phase IV being 0.95 or less.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 20, 2017
    Assignee: Braskem America, Inc.
    Inventors: John Kaarto, Alechia Crown, Li-Min Tau, Gert J. Claasen
  • Publication number: 20170159211
    Abstract: Fibers made a polyethylene composition, and method of making the same. The polyethylene composition comprises less than or equal to 100 percent by weight of the units derived from ethylene and less than 20 percent by weight of units derived from one or more ?-olefin comonomers; wherein said polyethylene composition has a density in the range of 0.930 to 0.960 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 1 to 300 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, a shear viscosity in the range of 20 to 250 Pascal-s at 3000 s?1 shear rate measured at 190° C., vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition; and wherein the fiber is a monocomponent meltspun fiber.
    Type: Application
    Filed: February 20, 2017
    Publication date: June 8, 2017
    Inventors: Randy E. Pepper, Mridula Babli Kapur, Gert J. Claasen, Edward N. Knickerbocker, Nathan J. Wiker, William J. Michie, JR., Mark B. Davis
  • Patent number: 9663642
    Abstract: The instant invention discloses fibers. The fibers according to the instant invention comprise a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more ?-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 30, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Randy E. Pepper, Mridula Kapur, Gert J. Claasen, Edward N. Knickerbocker, Nathan J. Wiker, William J. Michie, Jr., Mark B. Davis
  • Publication number: 20160317696
    Abstract: A process for making a hydrophilic nonwoven structure comprising: forming a nonwoven structure comprising fibers; and exposing the nonwoven structure to an atmospheric plasma comprising an inert gas and a substance having a polar group and which can be vaporized or made into an aerosol and which forms a free radical upon exposure to a dielectric barrier discharge is provided. Also provided are nonwoven structures produced thereby and articles containing the nonwoven structures.
    Type: Application
    Filed: December 15, 2014
    Publication date: November 3, 2016
    Inventors: Rudolph J. Koopmans, Evren Aslan-Guerel, Gert J. Claasen
  • Publication number: 20150308039
    Abstract: The present invention relates to nonbreathable extrusion coated nonwoven structures. The structures comprise a nonwoven web comprised of monocomponent or bicomponent fibers having a coating comprising LDPE optionally blended with LLDPE and/or an elastomer. The monocomponent or bicomponent fibers comprise an ethylene based polymer, preferably at the surface of the fiber.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 29, 2015
    Inventors: Barbara Bonaboglia, Elena E. Cordublas, Gert J. Claasen, Jacquelyn A. Degroot, Fabricio Arteaga Larios, Carlos E. Ruiz
  • Publication number: 20140248816
    Abstract: The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more ?-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.
    Type: Application
    Filed: October 4, 2012
    Publication date: September 4, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Barbara Bonavoglia, Gert J. Claasen, Jacquelyn A. Degroot, Selim Bensason
  • Publication number: 20140248811
    Abstract: The instant invention provides nonwoven fabrics and staple or binder fibres prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0. 970 g/cm3, a melt index (12) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz/Mw) in the range of from less than 2.
    Type: Application
    Filed: October 4, 2012
    Publication date: September 4, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Jacquelyn A. Degroot, Gert J. Claasen, Selim Bensason, Mehmet Demirors, Thor Gudmundsson, Jason C. Brodil
  • Publication number: 20140187114
    Abstract: The present invention is an extensible nonwoven comprising a polyolefin elastomer fiber wherein the surface of the fiber further comprises an inorganic filler or PDMS or combinations thereof, wherein the inorganic filler, if present, has D-90 particle size of 5 microns or less.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicants: Dow Brasil S.A., Dow Global Technologies LLC
    Inventors: Hong Peng, Emil Hersche, Jozef J. Van Dun, Edward N. Knickerbocker, Andy C. Chang, Angels Domenech, Aleksandar Stoiljkovic, Gert J. Claasen
  • Publication number: 20140121619
    Abstract: The present invention relates to coatings for articles comprising a non-zeolitic silica mesoporous structure. The coatings of the present invention have shown an ability to effectively reduce odors.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 1, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Evren Aslan-Guerel, Gert J. Claasen, Rudolf J. Koopmans, Scott T. Matteucci
  • Publication number: 20130267138
    Abstract: A method of forming an article that includes applying an aqueous dispersion to a porous substrate, wherein the aqueous dispersion includes a thermoplastic polymer, a dispersing agent, and water. The method includes removing at least a portion of the water, to result in an article formed that is breathable.
    Type: Application
    Filed: June 3, 2013
    Publication date: October 10, 2013
    Inventors: Gert J. Claasen, Miguel A. Prieto, Martin Pavlik
  • Publication number: 20130209707
    Abstract: The present disclosure provides for a tape or monofilament of a polyethylene composition comprising less than or equal to 100 percent by weight of the polyethylene composition derived from ethylene monomers, and less than 20 percent by weight of the polyethylene composition derived from one or more ?-olefin monomers, where the polyethylene composition of the tape or monofilament has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 50 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the polyethylene composition, where the tape or monofilament has a decitex of greater than 500 g/10,000 m.
    Type: Application
    Filed: October 29, 2010
    Publication date: August 15, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Peter Sandkuehler, Gert J. Claasen
  • Publication number: 20130023177
    Abstract: The present invention provides bicomponent fibers, a method of producing bicomponent fibers, nonwoven materials comprising one or more such bicomponent fibers, and a method for making such nonwoven materials. The bicomponent fibers according to the present invention comprise (a) a first component comprising a polymeric material selected from the group consisting of polypropylene, polyester, and polyamide; and (b) a second component comprising a polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene; and less than 20 percent by weight of units derived from one or more ?-olefin comonomers; wherein the polyethylene composition has a density in the range of from 0.945 to 0. 965 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 1.70 to 3.5, a melt index (I2) in the range of from 0.2 to 150 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of from less than 2.5, vinyl unsaturation in the range of from less than 0.
    Type: Application
    Filed: February 2, 2011
    Publication date: January 24, 2013
    Applicant: Dow Blobal Technologies LLC
    Inventors: Gert J. Claasen, Angels Domenech, Thor Gudmundsson
  • Publication number: 20120045956
    Abstract: Fabricated articles are disclosed which comprise a polypropylene impact copolymer. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C4-C10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C4-C10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the matrix MFR to the dispersed phase MFR being 1.2 or less.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Gert J. Claasen, Charles R. Crosby, III, Alechia Crown, John Kaarto
  • Publication number: 20120046400
    Abstract: A polypropylene impact copolymer is disclosed. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C4-C10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C4-C10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the matrix MFR to the dispersed phase MFR being 1.2 or less.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: Dow Global Technologies Inc.
    Inventors: John Kaarto, Alechia Crown, Li-Min Tau, Gert J. Claasen