Patents by Inventor John Kaarto

John Kaarto 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: 10336840
    Abstract: A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: July 2, 2019
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Chai-Jing Chou, Daniel W. Baugh, III, John Kaarto, Jan W. Van Egmond, Jeffrey D. Goad, William G. Sheard
  • 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: 20160251462
    Abstract: A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 1, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Chai-Jing Chou, Daniel W. Baugh, III, John Kaarto, Jan W. Van Egmond, Jeffrey D. Goad, William G. Sheard
  • Patent number: 9109106
    Abstract: The present invention relates to polymer compositions comprising a propylene impact copolymer and a processing aid, as well as corrugated boards made from such compositions. The impact copolymer has a melt flow range of from 1.5 to 3.5 g/10 min and a dispersed phase content of from 5 to 30% by weight. The dispersed phase of the impact copolymer has an ethylene content of from 30- to 70% by weight of the dispersed phase. The matrix phase of the impact copolymer is a propylene homopolymer or a random copolymer comprising units derived from propylene and a second copolymer selected from either ethylene or 1-butene wherein the units derived from the second copolymer comprise from 0 to 5% by weight of the dispersed phase.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: August 18, 2015
    Assignee: Braskem America, Inc.
    Inventors: Peter S. Dias, Li-Min Tau, John Kaarto
  • Patent number: 9085682
    Abstract: The present invention relates to polymer compositions comprising a propylene impact copolymer and a processing aid, as well as corrugated boards made from such compositions. The impact copolymer has a melt flow range of from 1.5 to 3.5 g/10 min and a dispersed phase content of from 5 to 30% by weight. The dispersed phase of the impact copolymer has an ethylene content of from 30- to 70% by weight of the dispersed phase. The matrix phase of the impact copolymer is a propylene homopolymer or a random copolymer comprising units derived from propylene and a second copolymer selected from either ethylene or 1-butene wherein the units derived from the second copolymer comprise from 0 to 5% by weight of the dispersed phase.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 21, 2015
    Assignee: Braskem America, Inc.
    Inventors: Peter S. Dias, Li-Min Tau, John Kaarto
  • Patent number: 8809461
    Abstract: Disclosed is a multimodal propylene impact copolymer composition with improved stiffness while maintaining good impact strength. The continuous phase has a broad PI and provides the multimodal propylene impact copolymer composition with excellent processability. Thermoformed articles made from the multimodal propylene impact copolymer exhibit improved rigidity and good impact strength.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: August 19, 2014
    Assignee: Braskem America, Inc.
    Inventors: Alechia Crown, Debra R. Wilson, John Kaarto
  • Publication number: 20140124405
    Abstract: The present disclosure provides compositions, films and articles containing a random propylene/ethylene copolymer and a substituted phenylene aromatic diester. Polymerization with an improved catalyst system increases the amount of ethylene incorporated into the random propylene/ethylene copolymer backbone which results in improved thermal properties, improved optical properties, and improved heat seal properties.
    Type: Application
    Filed: July 27, 2012
    Publication date: May 8, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Li-Min Tau, Chai-Jing Chou, John Kaarto, Peter S. Martin, William G. Sheard
  • Publication number: 20130237111
    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: July 19, 2011
    Publication date: September 12, 2013
    Applicant: BRASKEM AMERICA, INC.
    Inventors: Alechia Crown, Gert Claasen, Jacquelyn Degroot, Thor Gudmundsson, Charles Crosby, Li-Min Tau, John Kaarto
  • Patent number: 8404324
    Abstract: A mineral-filled, polypropylene composition comprises (i) a coupled, impact propylene polymer, and (ii) at least 0.5 weight percent (wt %) based on the weight of the composition of at least one of calcium carbonate and talc. The compositions are useful in the manufacture of three-layer pipe comprising (A) a first or outer non-foam layer; (B) a second or middle foam layer; and (C) a third or inner non-foam layer.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: March 26, 2013
    Assignee: Braskem America, Inc.
    Inventors: William G. Lutz, John Kaarto, Robert J. Donald
  • Patent number: 8378045
    Abstract: Disclosed are thermoformed articles composed of propylene homopolymer containing a substituted phenylene aromatic diester. The thermoformed articles have high stiffness, good compression strength, excellent processability, and excellent optics.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 19, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: John Kaarto, Linfeng Chen, Tak W. Leung
  • Publication number: 20120301682
    Abstract: The present invention relates to polymer compositions comprising a propylene impact copolymer and a processing aid, as well as corrugated boards made from such compositions. The impact copolymer has a melt flow range of from 1.5 to 3.5 g/10 min and a dispersed phase content of from 5 to 30% by weight. The dispersed phase of the impact copolymer has an ethylene content of from 30-to 70% by weight of the dispersed phase. The matrix phase of the impact copolymer is a propylene homopolymer or a random copolymer comprising units derived from propylene and a second copolymer selected from either ethylene or 1-butene wherein the units derived from the second copolymer comprise from 0 to 5% by weight of the dispersed phase.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Peter S. Dias, Li-Min Tau, John Kaarto
  • Publication number: 20120276312
    Abstract: Disclosed is a multimodal propylene impact copolymer composition with improved stiffness while maintaining good impact strength. The continuous phase has a broad PI and provides the multimodal propylene impact copolymer composition with excellent processability. Thermoformed articles made from the multimodal propylene impact copolymer exhibit improved rigidity and good impact strength.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Inventors: Alecia Crown, Debra R. Wilson, John Kaarto
  • 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
  • Publication number: 20110256333
    Abstract: A mineral-filled, polypropylene composition comprises (i) a coupled, impact propylene polymer, and (ii) at least 0.5 weight percent (wt %) based on the weight of the composition of at least one of calcium carbonate and talc. The compositions are useful in the manufacture of three-layer pipe comprising (A) a first or outer non-foam layer; (B) a second or middle foam layer; and (C) a third or inner non-foam layer.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 20, 2011
    Inventors: William G. Lutz, John Kaarto, Robert J. Donald
  • Publication number: 20100301059
    Abstract: Disclosed are thermoformed articles composed of propylene homopolymer containing a substituted phenylene aromatic diester. The thermoformed articles have high stiffness, good compression strength, excellent processability, and excellent optics.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 2, 2010
    Inventors: John Kaarto, Linfeng Chen, Tak W. Leung
  • Publication number: 20090176898
    Abstract: Tensile draw an orientable polymer composition wherein at least 50 weight-percent of the polymers in the orientable polymer composition are polypropylene-based polymers and wherein the orientable polymer composition contains four weight-percent or less of a combination of polypropylene xylene solubles and ethylene/propylene copolymer xylene solubles and ten volume percent or more of inorganic filler to prepare a cellular oriented polymer composition having a density of 0.85 grams per cubic centimeter or less and a flexural modulus of 4137 megaPascals (600,000 pounds per square inch) or more.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 9, 2009
    Inventors: Kevin L. Nichols, John Kaarto, Alechia Crown, Malcolm F. Finlayson
  • Publication number: 20040038022
    Abstract: This invention relates to a method of making a film-fabric composite (includinng a film-fabric laminate) wherein the fabric is characterized as having improved tensile elongation (without rupture). In particular, the invention pertains to a method of making a film-fabric laminate having structual elastic-like behavior wherein the fabric is a nonwoven thermally bonded fabric characterized as having improved high strain rate tensile elongation and comprises a plurality of fibers comprised of at least one polypropylene polymer and at least one ethylene polymer, wherein the method comprises stretching the laminate at a high strain rate. The improved farbic is characterized by higher high strain rate tensile properties and a broader bond window which is also shifted to substantially lower temperatures with regard to maximum tensile properties.
    Type: Application
    Filed: September 27, 2002
    Publication date: February 26, 2004
    Inventors: Rexford A. Maugans, Kalyan Sehanobish, Michael E. Rowland, Ray A. Herring, John Kaarto, Kenneth E. Springs, Thoi H. Ho
  • Patent number: 6593005
    Abstract: The present invention includes a coextruded film having at least two layers. The first layer contains a coupled propylene polymer and the second layer contains an in-reactor blend of a linear low density polyethylene fraction and a substantially linear polyethylene fraction. Alternatively, the second layer may include a homogeneously branched linear polyethylene. Preferably, the first layer makes up about 50 weight percent or less of the overall coextruded film structure. The first layer may also contain a polyethylene, such as a linear low density polyethylene, a low density polyethylene, a high density polyethylene, substantially linear polyethylene, a homogeneously branched linear polyethylene, an in-reactor blend of linear low density polyethylene and a substantially linear polyethyelene, and blends thereof.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 15, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Lisa S. Madenjian, Johan A. Thoen, Wendy D. Hoenig, Pak-Wing S. Chum, John Kaarto, Daniel J. Falla
  • Publication number: 20020156193
    Abstract: The present invention includes a composition comprising (a) at least one propylene polymer coupled by reaction with a coupling amount of poly(sulfonyl azide) sufficient to increase the melt strength of the propylene polymer before coupling at least about 1.5 fold as compared with the resulting coupled propylene polymer; and (b) at least one ethylene polymer wherein the ethylene polymer is present in an amount sufficient to improve film mechanical properties of tear resistance in either the machine direction (MD) and cross direction (CD) as measured by the Elmendorf Tear method (ASTM D-1922) or dart impact strength as measured by the procedure of ASTM D-1709 or a modified method thereof in which the height from which the dart is dropped is decreased from 26″ to 10.5″ (0.66 m to 0.27 m) as compared with a film formed in the same manner using the coupled propylene polymer of (a) alone.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 24, 2002
    Inventors: Li-Min Tau, Wendy D. Hoenig, Lisa S. Madenjian, Pak-Wing S. Chum, John Kaarto, Johan A. Thoen