Patents by Inventor Brian W. Walther

Brian W. Walther 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: 9511567
    Abstract: Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: December 6, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Yushan Hu, Burcak Conley, Kim L. Walton, Colin Li Pi Shan, Gary R. Marchand, Rajen M. Patel, Eva-Maria Kupsch, Brian W. Walther
  • Patent number: 9447269
    Abstract: The present invention relates to a film having a combination of good flexibility and excellent barrier properties. The film comprises at least one barrier layer. The barrier layer comprises at least 5 percent, by weight of the layer, of an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a density in the range of from 0.855 to 0.900 g/cm3; and having a melt index (190° C./2.16 kg) of greater than 200 g/10 min. The barrier layer further comprises at least 60 percent, by weight of the layer, of an interpolymer derived from ethylene and vinyl alcohol monomer units.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 20, 2016
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Brian W. Walther, Sharon Baker
  • Publication number: 20150267020
    Abstract: A styrenic polymer foam contains a polymer composition in the form of a continuous matrix defining multiple cells therein, the polymer composition contains a first polymer and second polymer, the first polymer being a maleic anhydride-grafted high density polyethylene and the second polymer being a styrenic polymer resin that is free of grafted maleic anhydride. The first polymer contains on average 0.05 or more weight-parts of grafted maleic anhydride based on total weight of the first polymer and the concentration of first polymer in the polymer composition is sufficient to provide at least six weight-parts of grafted maleic an hydride per million weight parts of the polymer composition.
    Type: Application
    Filed: November 11, 2013
    Publication date: September 24, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Kendra M. Giza, Mark A. Barger, Richard T. Fox, Suzanne M. Guerra, Brian W. Walther
  • Publication number: 20150247014
    Abstract: The invention provides a composition comprising at least the following: A) an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having the following properties: i) a melt viscosity (177° C.) less than, or equal to, 200,000 cP, ii) a density from 0.855 to 0.900 g/cc; B) an ethylene-based polymer; and C) a polar polymer.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 3, 2015
    Inventors: Didem Oner-Deliormanli, Brian W. Walther, Rajen M. Patel, Gregory Bunker, John W. Garnett, IV
  • Patent number: 9120887
    Abstract: The invention provides a crosslinked composition formed by thermally treating a composition comprising at least the following: A) an ethylene-based polymer that has a density less than, or equal to, 0.910 g/cc; B) an olefin-based polymer that has a melt viscosity less than, or equal to, 20,000 cP, at 350° F.; and C) a crosslinking agent.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 1, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Peter R. Voorheis, Brian W. Walther, Selim Yalvac
  • Patent number: 9102824
    Abstract: The invention provides a composition comprising a first composition, which first composition comprises the following: A) a first interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene; B) a second interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene; and wherein the first composition has at least one of the following features: a) an [(ML(1+4, 125° C.))/Mw(conv)]*1000 greater than 0.429 mole/g; b) a Mooney Viscosity (ML, 1+4, 125° C.) greater than, or equal to, 70, and has a low shear viscosity (? at 0.1 rad/sec) less than, or equal to, 100,000 Pa·sec; and c) a Mooney Viscosity (ML(1+4, 125° C.)) greater than, or equal to, 70, and has an [Mw(abs)]/[Mw(conv)] less than 1.2.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: August 11, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Wenbin Liang, Brian W. Walther, Timothy E. Clayfield, Arnis U. Paeglis, Sherrika D. Daniel, Larry A. Meiske
  • Publication number: 20150217544
    Abstract: Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).
    Type: Application
    Filed: September 13, 2013
    Publication date: August 6, 2015
    Inventors: Yushan Hu, Burcak Conley, Kim L. Walton, Colin Li Pi Shan, Gary R. Marchand, Rajen M. Patel, Eva-Maria Kupsch, Brian W. Walther
  • Publication number: 20140378602
    Abstract: The invention provides a composition comprising a first composition comprising the following: A) a first ethylene/?-olefin interpolymer that has a weight average molecular weight (Mw) greater than 90,000 g/mole and a MWD less than, or equal to 3, each as determined by conventional GPC; B) a second ethylene/?-olefin interpolymer; and wherein the first composition has a number average molecular weight (Mn) less than 10,000 g/mole, as determined by conventional GPC; and wherein the ?-olefin of first interpolymer is the same as the ?-olefin of the second interpolymer.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 25, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Brian W. Walther, Timothy E. Clayfield, Curvel Hypolite
  • Publication number: 20140343213
    Abstract: The present disclosure is directed to a composition and articles containing the composition. The composition includes an ethylene-propylene-diene interpolymer (EPDM) having a rheology ratio greater than 33. The EPDM also has a molecular weight distribution greater than 3.0. The composition has a dissipation factor less than or equal to 0.01 radians as measured in accordance with ASTM D 150 (130° C., 60 Hz).
    Type: Application
    Filed: November 30, 2012
    Publication date: November 20, 2014
    Inventors: Brian W. Walther, Susan Song, Lin Fu
  • Publication number: 20140205821
    Abstract: The present invention relates to a film having a combination of good flexibility and excellent barrier properties. The film comprises at least one barrier layer. The barrier layer comprises at least 5 percent, by weight of the layer, of an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a density in the range of from 0.855 to 0.900 g/cm3; and having a melt index (190° C./2.16 kg) of greater than 200 g/10 min. The barrier layer further comprises at least 60 percent, by weight of the layer, of an interpolymer derived from ethylene and vinyl alcohol monomer units.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Brian W. Walther, Sharon Baker
  • Patent number: 8772414
    Abstract: The invention provides a composition comprising an ethylene/?-olefin/non-conjugated diene interpolymer, which has the following properties: an Mz(abs)/Mz(Conv) value greater than 1.35; an Mz(BB)/Mw(abs) value greater than 1.6; and a non-conjugated diene content less than 10 weight percent, based on the total weight of the interpolymer.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: July 8, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Wenbin Liang, Brian W. Walther, Gary R. Marchand
  • Patent number: 8609779
    Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: December 17, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
  • Patent number: 8603639
    Abstract: The present disclosure is directed to polymeric compositions which form gloss resins suitable for thermoforming applications. The polymeric compositions include a reaction product composed of a clarified random propylene/?-olefin copolymer, a coupling agent, and optionally an elastomer. Methods for adjusting the melt flow rate of the gloss resin are also disclosed. Adjustment of the gloss resin melt flow rate advantageously enables scrap thermoplastic material containing the gloss resin to be recycled in a thermoforming operation.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 10, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Todd A. Hogan, Malcolm F. Finlayson, Brian W. Walther
  • Publication number: 20130316111
    Abstract: A composition comprising at least the following components: (A) a first composition comprising the following: i) a first interpolymer comprising, in polymerized form, ethylene, an ?-olefin, and a nonconjugated polyene; ii) a second interpolymer comprising, in polymerized form, ethylene, an ?-olefin and a nonconjugated polyene; and wherein the first composition has an MWD less than, or equal to, 3.5, a Mooney Viscosity (ML (1+4 @125° C.)) greater than, or equal to, 80, and an [(ML(1+4 @125° C.))/Mw(conv)]*1000 greater than 0.429 mole/g; (B) a thermoplastic polymer; and (C) a vulcanization agent is provided. A crosslinked composition made by heating one or more of the inventive compositions is also provided. Articles made from one or more of the inventive compositions are also provided.
    Type: Application
    Filed: December 29, 2011
    Publication date: November 28, 2013
    Inventors: Xiaosong Wu, Jose M. Rego, Kim L. Walton, Brian W. Walther, Michael D. Read
  • Patent number: 8563658
    Abstract: Embodiments of the invention provide block composites and their use in thermoplastic vulcanizate compounds.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: October 22, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Kim L. Walton, Brian W. Walther, Robert T. Johnston, Jose M. Rego, Xiaosong (Sharon) Wu
  • Publication number: 20130225738
    Abstract: The instant invention provides polyethylene compositions having reduced plate out, and films made therefrom having reduced blooming. The polyethylene composition suitable for film applications according to the present invention comprises the melt blending product of: (a) an ethylene based polymer; (b) a first antioxidant system comprising one or more antioxidants selected from the group consisting of Octadecyl-3-(3,5-di-tert.butyl-4-hydroxyphenyl)-propionate; Pentaerythritol Tetrakis (3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate); and combinations thereof; (c) a second antioxidant system comprising a liquid phosphite corresponding to the formula [4-(2-methylbutan-2-yl)phenyl]x[2,4-bis(2-methylbutan-2-yl)phenyl]3-x phosphate, wherein x=0, 1, 2, 3, or combinations thereof; and (d) optionally one or more neutralizing agents.
    Type: Application
    Filed: October 17, 2011
    Publication date: August 29, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: John O. Osby, Brian W. Walther, Jose E. Ruiz, Jon W. Hobson, Cristina Serrat
  • Patent number: 8476366
    Abstract: Embodiments of the invention provide block composites and their use in thermoplastic vulcanizate compounds.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: July 2, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Kim L. Walton, Brian W. Walther, Robert T. Johnston, Jose M. Rego, Xiaosong Wu
  • Patent number: 8436089
    Abstract: The instant invention is a polypropylene composition, a method of producing the same, and articles made therefrom. The polypropylene composition according to instant invention includes the reactive melt blending product of a high crystalline polypropylene having a crystallinity of at least 64 percent, an elastomer, a coupling agent, and optionally a filler. The polypropylene composition according to instant invention has a melt flow rate in the range of less than 1 g/10 minutes measured at 230° C. under a load of 2.16 kg in accordance with ASTM-D 1238.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: May 7, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Malcolm F. Finlayson, Brian W. Walther, Todd A. Hogan, Stephen M. Hoenig, Kim L. Walton
  • Publication number: 20130096263
    Abstract: The invention provides a crosslinked composition formed by thermally treating a composition comprising at least the following: A) an ethylene-based polymer that has a density less than, or equal to, 0.910 g/cc; B) an olefin-based polymer that has a melt viscosity less than, or equal to, 20,000 cP, at 350° F.; and C) a crosslinking agent.
    Type: Application
    Filed: June 21, 2011
    Publication date: April 18, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Peter R. Voorheis, Brian W. Walther, Selim Yalvac
  • Patent number: 8389634
    Abstract: A thermoplastic composition is described that comprises (i) from 1 to 99 percent by weight of the total composition of at least one thermoplastic copolymer, for example, styrene block copolymers, and (ii) from 1 to 99 percent by weight of the total composition of at least one homogeneously branched ethylene/?-olefin interpolymer, for example ethylene/1-octene, having a density of less than or equal to 0.899 g/cc and a Brookfield viscosity of greater than 500 cP (350° F.).
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: March 5, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Selim Yalvac, Teresa Karjala, Wilson Cheung, Brad Moncla, Brian W. Walther