Patents by Inventor Jozef J. I. Van Dun

Jozef J. I. Van Dun 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).

  • Publication number: 20210277214
    Abstract: A foam bead is formed from a composition comprising an ionomer comprising, in polymerized form, ethylene, an unsaturated acid comonomer and, optionally, an acrylate comonomer, wherein the unsaturated acid comonomer is at least partially neutralized with a neutralizing agent. A sintered foam structure is formed from foam beads that are formed from above composition.
    Type: Application
    Filed: June 29, 2018
    Publication date: September 9, 2021
    Applicants: Dow Global Technologies LLC, Performance Materials NA, Inc.
    Inventors: Haiyang Yu, Jinliang Yan, Yunfeng Yang, Jozef J.I. Van Dun
  • Publication number: 20210252826
    Abstract: The present disclosure provides a fabric laminate. In an embodiment, the fabric laminate includes a fabric sheet, a coating layer, and a tie layer. The fabric sheet is composed of propylene-based polymer fibers. The coating layer is composed of one or more ethylene-based polymers. The tie layer is located between the fabric sheet and the coating layer. The tie layer is composed of at least 50 wt % of a crystalline block composite (CBC) and an optional blend component. The CBC includes (i) an isotactic crystalline propylene homopolymer (iPP); (ii) an ethylene/propylene copolymer; and (iii) a diblock with the formula (EP)-(iPP). The CBC has a block composite index (CBCI) from 0.1 to 1.0. The fabric laminate has a peel force from 20 N/15 mm to 40 N/15 mm.
    Type: Application
    Filed: August 31, 2018
    Publication date: August 19, 2021
    Inventors: Stefan Ultsch, Yushan Hu, Jozef J.I. Van Dun, Ming Ming
  • Publication number: 20210155832
    Abstract: A composition is provided, which comprises an ethylene/C3-C6 alpha-olefin interpolymer, and wherein the interpolymer comprises the following properties: a) an HCC value that meets the following equation: HCC(wt %)??648.6[(wt %)(cc)/(g)]×(density)+569.4(wt %); b) an aged flowability ?130 g/sec.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 27, 2021
    Inventors: Jozef J. I. Van Dun, Yi Jin
  • Publication number: 20210115213
    Abstract: The present disclosure provides a foam bead. The foam bead is formed from a composition containing (A) a silane-functionalized ethylene/?-olefin multi-block interpolymer. The present disclosure also provides a sintered foam structure. The sintered foam structure is formed from foam beads that are formed from a composition containing (A) a silane-functionalized ethylene/?-olefin multi-block interpolymer.
    Type: Application
    Filed: June 29, 2018
    Publication date: April 22, 2021
    Inventors: Haiyang Yu, Jozef J I Van Dun, Yunfeng Yang
  • Publication number: 20190218708
    Abstract: The present disclosure provides and article. The article includes: (A) a polyester fabric; (B) a coating on a surface of the polyester fabric, the coating comprising at least one of (i) an ethylene/vinyl acetate/maleic anhydride terpolymer and (ii) an ethylene/methyl acrylate/glycidyl methacrylate terpolymer.
    Type: Application
    Filed: September 18, 2017
    Publication date: July 18, 2019
    Inventors: Varun Thakur, Stefan Ultsch, Miguel A. Prieto Goubert, Burcak Conley, Jozef J.I. Van Dun
  • Publication number: 20190194503
    Abstract: A composition is provided, which comprises an ethylene/C3-C6 alpha-olefin interpolymer, and wherein the interpolymer comprises the following properties: a) an HCC value that meets the following equation: HCC (wt %)??648.6 [(wt %)(cc)/(g)]×(density)+569.4 (wt %); b) an aged flowability ?130 g/sec.
    Type: Application
    Filed: August 25, 2017
    Publication date: June 27, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Jozef J.I. VAN DUN, Yi JIN
  • Patent number: 10239676
    Abstract: The present disclosure is directed to compositions and film structures suitable for heat seal production. The heat sealable flexible film structure includes: a layer (A) comprising a blend comprising from 35 to 80 percent by weight of the layer (A) of a propylene based plastomer or elastomer (“PBPE”) and from 20 to 65 percent by weight of the layer (A) of a low density polyethylene having a density in the range of from 0.915 g/cm3 to 0.935 g/cm3, wherein the blend has a melt index (as determined according to ASTM D 1238 (at 190° C./2.16 Kg); a layer (B), adjacent to layer (A), comprising a polyolefin-based polymer, wherein the polymer or polymer blend which makes up layer (B) flows more easily than the blend of layer (A) under conditions intended for making a hard seal with the film structure; and an outermost layer (C) comprising a material having a melting point greater than 140° C.; wherein the ratio of the thickness of layer (B) to the thickness of layer (A) is 3:1 or greater.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: March 26, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Chuan Yar Lai, Kurt Brunner, Jozef J.i. Van Dun, Nicolas C. Mazzola, Maria Isabel Arroyo Villan
  • Publication number: 20160244229
    Abstract: The present disclosure is directed to compositions and film structures suitable for heat seal production. The heat sealable flexible film structure includes: a layer (A) comprising a blend comprising from 35 to 80 percent by weight of the layer (A) of a propylene based plastomer or elastomer (“PBPE”) and from 20 to 65 percent by weight of the layer (A) of a low density polyethylene having a density in the range of from 0.915 g/cm3 to 0.935 g/cm3, wherein the blend has a melt index (as determined according to ASTM D 1238 (at 190° C./2.16 Kg); a layer (B), adjacent to layer (A), comprising a polyolefin-based polymer, wherein the polymer or polymer blend which makes up layer (B) flows more easily than the blend of layer (A) under conditions intended for making a hard seal with the film structure; and an outermost layer (C) comprising a material having a melting point greater than 140° C.; wherein the ratio of the thickness of layer (B) to the thickness of layer (A) is 3:1 or greater.
    Type: Application
    Filed: October 10, 2014
    Publication date: August 25, 2016
    Inventors: Chuan Yar Lai, Kurt Brunner, Jozef J.i. Van Dun, Nicolas C. Mazzola, Maria Isabel Arroyo Villan
  • Patent number: 7847029
    Abstract: This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention comprise an elastomeric polyolefin resin and a high pressure low density type resin. The preferred compositions of the present invention comprise from 88 to 99 percent elastomer or plastomer and from 1 to 12 percent by weight of a high pressure low density type resin.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: December 7, 2010
    Assignee: Dow Global Technologies, Inc.
    Inventors: Thomas I. Butler, Andy C. Chang, Jozef J. I. Van Dun, Ronald J. Weeks, Jeffrey D. Weinhold, Rajen M. Patel, David T. Gillespie
  • Patent number: 7736737
    Abstract: The present invention relates to soft touch fibers and nonwoven fabrics made from such fibers. The fibers comprise an incompatible polymer system which leads to the soft touch quality. The fibers comprise a mixture of at least two thermoplastic polymers each having different viscosities and wherein the mixture has an interfacial tension from about 0.5 to about 20 mN/m, and wherein the mixture comprises a portion of the fiber surface. The fibers may include from 40-98 percent of a polyolefin continuous phase and from 2 to 60 weight percent of an amorphous thermoplast dispersed phase, such as polystyrene or polyamide.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: June 15, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Jozef J. I. Van Dun, Daniel R. Bosak, John E. Flood, Edward N. Knickerbocker, Thomas Allgeuer, Karin Katzer, Miguel A. Prieto Goubert
  • Publication number: 20080293890
    Abstract: This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention comprise an elastomeric polyolefin resin and a high pressure low density type resin. The preferred compositions of the present invention comprise from 88 to 99 percent elastomer or plastomer and from 1 to 12 percent by weight of a high pressure low density type resin.
    Type: Application
    Filed: December 23, 2005
    Publication date: November 27, 2008
    Applicant: DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Thomas I. Butler, Andy C. Chang, Jozef J. I. Van Dun, Ronald J. Weeks, Jeffrey D. Weinhold, Rajen M. Patel, David T. Gillespie
  • Patent number: 7413803
    Abstract: Extensible bicomponent fibers and webs particularly adapted for disposable personal care product component applications. Sheath/core configurations providing desirable feel properties for elastic embodiments when compared with conventional elastic fibers and webs are obtained with specific olefin polymer combinations and sheath configurations.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: August 19, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Joy F. Jordan, Renette E. Richard, Christian L. Sanders, Varunesh Sharma, Stephen M. Englebert, Bryon P. Day, Andy C. Chang, Hong Peng, Jozef J. I. Van Dun, Randy E. Pepper, Edward N. Knickerbocker, Antonios K. Doufas, Rajen M. Patel
  • Patent number: 7101622
    Abstract: Fibers that exhibit good elasticity or extensibility and tenacity, and low modulus are prepared from propylene-based copolymers. The propylene-based copolymers comprise at least about 50 weight percent (wt %) of units derived from propylene and at least about 8 wt % of units derived from one or more comonomers other than propylene, e.g., ethylene. Particularly preferred propylene copolymers are characterized as having 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity. In one aspect of the invention, fibers are subjected to stress-induced crystallization by subjecting the fiber to tensile elongation during draw.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 5, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Andy C. Chang, Hong Peng, Jozef J. I. Van Dun, Randy E. Pepper, Edward N. Knickerbocker, Antonios K. Doufas, Rajen M. Patel, Lizhi Liu, Byron P. Day, Stephen M. Englebert, Joy F. Jordan, Renette E. Richard, Christian L. Sanders, Varunesh Sharma
  • Patent number: 7101623
    Abstract: Extensible bicomponent fibers and webs particularly adapted for disposable personal care product component applications. Sheath/core configurations providing desirable feel properties for elastic embodiments when compared with conventional elastic fibers and webs are obtained with specific olefin polymer combinations and sheath configurations.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 5, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Joy F. Jordan, Renette E. Richard, Christian L. Sanders, Varunesh Sharma, Stephen M. Englebert, Bryon P. Day, Andy C. Chang, Hong Peng, Jozef J. I. Van Dun, Randy E. Pepper, Edward N. Knickerbocker, Antonios K. Doufas, Rajen M. Patel
  • Patent number: 6812289
    Abstract: This invention relates to cast films prepared from interpolymer compositions comprising; (A) a substantially linear ethylene/&agr;-olefin interpolymer present in the composition in an amount of from about 10 to about 100% by weight based on the combined weight of Components A and B; and (B) a heterogeneous interpolymer present in the composition in an amount of from about 0 to about 90% by weight based on the combined weight of Components A and B; and wherein said interpolymer composition has an I10/I2 value of < about 10.0 and is characterized as having a viscosity at 100 rad/s and a relaxation time (&tgr;) which satisfies either of the following relationships; Log(viscosity at 100 rad/s)≦4.43−0.8 log(I2) or log(&tgr;)>−1.2−1.3* log(I2) The interpolymer compositions are useful in cast stretch film manufacture with the resulting cast films having an excellent balance of strength and processability.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: November 2, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Jozef J. I. Van Dun, Jacquelyn A. deGroot, Pradeep Jain, Kalyan Sehanobish, Pak-Wing S. Chum
  • Publication number: 20030114595
    Abstract: This invention relates to cast films prepared from interpolymer compositions comprising;
    Type: Application
    Filed: July 22, 2002
    Publication date: June 19, 2003
    Inventors: Jozef J.I. Van Dun, Jacquelyn A. deGroot, Pradeep Jain, Kalyan Sehanobish, Pak-Wing S. Chum
  • Patent number: 5858491
    Abstract: Hollow molded articles prepared from a molding composition comprising:(A) from 95 to 60 percent by weight, based on the weight of (A) and (B), of an ethylene polymer having a density of 0.955 g/cm.sup.3 or higher, a melt index from 0.3 to 10 g/10 min, a melt index ratio I.sub.21 /I.sub.2 of from 40 to 80, and a polydispersity of from 1.8 to 10, the ethylene polymer being selected from the group consisting of i) high density ethylene homopolymers and ii) high density ethylene copolymers prepared by slurry or gas phase polymerization in the presence of a Ziegler or Phillips catalyst or prepared by polymerization in the presence of a transition metal compound catalyst containing a cyclopentadienyl or cyclopentadienyl derivative moiety; and(B) from 5 to 40 percent by weight, based on the weight of (A) and (B), of a homogeneous linear or substantially linear ethylene interpolymer having a density from 0.85 to 0.93 g/cm.sup.3, a melt index from 0.5 to 5 g/10 min, and a polydispersity of from 1.8 to 2.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: January 12, 1999
    Assignees: Dow Belgium, Dow Europe S.A.
    Inventors: Theo L. V. Geussens, Herbert Bongartz, Jozef J. I. Van Dun
  • Patent number: 5631069
    Abstract: Medium modulus molded polyethylene materials with improved impact strength are made. The polyethylene material is molded to pipes, bars, and sheets. The molded material comprises high molecular weight linear polyethylene and a substantially linear ethylene/.alpha.-olefin interpolymer. The material is more than about 0.23 mm thick, has a density in the range of about 0.923 to about 0.95 grams/cubic centimeter (g/cc) and has an excellent impact resistance.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: May 20, 1997
    Assignee: The Dow Chemical Company
    Inventors: Jeffrey J. Wooster, Theo L. V. Geussens, Jozef J. I. Van Dun