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).
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Publication number: 20240150503Abstract: A propylene-ethylene copolymer includes propylene as a primary monomer, an ethylene content (ET) of 3.0% to 5% by weight, a melt flow rate of from 20 to 45 g/10 min, a xylene soluble fraction (XS) of from 2.0% to 7.0% by weight, and an XS/ET ratio of less than or equal to 1.51.Type: ApplicationFiled: December 5, 2023Publication date: May 9, 2024Applicant: W.R. GRACE & CO.-CONN.Inventors: Matthew Fedec, Jan Van Egmond, Manu Rego, John Kaarto, Li-Min Tau
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Publication number: 20240018346Abstract: A polymer composition includes a low ethylene random copolymer that can be used to form a meltspun or spunbond article at high spinning velocities. The polymer composition has a low xylene soluble content, a high crystallinity, or both, while having reduced spin-break at high spinning velocities. The polymer composition also exhibits good fiber tenacity and fabric softness.Type: ApplicationFiled: December 6, 2021Publication date: January 18, 2024Applicant: W.R. Grace & Co.-CONN.Inventor: John Kaarto
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Publication number: 20230374283Abstract: Polymer compositions are disclosed that contain a heterophasic polypropylene polymer. The polymer composition includes a first polymer phase that may comprise a polypropylene homopolymer and a second polymer phase that may comprise a rubber-like propylene-ethylene random copolymer. The polymer composition is made using Ziegler-Natta catalyst that results in a dramatically reduced VOC and oligomer content.Type: ApplicationFiled: October 14, 2021Publication date: November 23, 2023Inventors: Jing ZHONG, John KAARTO, Jonathan REEDS, Amaia MONTOYA
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Patent number: 11643481Abstract: The present invention provides polymer compositions having improved corrosivity, color stability and clarity. Also disclosed is a process of preparing the polymers. The process may comprise incorporating into the polymer an acid neutralizing amount of an amorphous aluminum silicate. The amorphous aluminum silicate may be present in the polymer in an amount such that the polymer composition having a Corrosivity Index of less than 6. A refractive index of the amorphous aluminum silicate may be the same or substantially the same as a refractive index of the polymer.Type: GrantFiled: February 1, 2019Date of Patent: May 9, 2023Assignee: W.R. Grace & Co.-Conn.Inventors: Amaia Montoya-Goni, John Kaarto, Michelle Ni Paine, Jose Manuel Rego, Feng Gu, Demetrius Michos, James Neil Pryor
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Publication number: 20220177682Abstract: Polypropylene polymer compositions are disclosed that have excellent stiffness properties. The polypropylene polymer compositions are made by combining a first polypropylene polymer with a second polypropylene polymer. The combination of polymers has been found to produce a composition having high stiffness properties in addition to excellent toughness properties. In addition, the polymer composition has good flow properties for being molded into various products and articles. Of particular advantage, the different polypropylene polymers can be produced at relatively high catalyst activity, especially in comparison to high crystalline polymers made in the past.Type: ApplicationFiled: April 3, 2020Publication date: June 9, 2022Inventors: John KAARTO, Jing ZHONG, Amaia MONTOYA-GONI
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Patent number: 11254848Abstract: 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: GrantFiled: July 27, 2012Date of Patent: February 22, 2022Assignee: W.R. GRACE & CO.-CONN.Inventors: Li-Min Tau, Chai-Jing Chou, John Kaarto, Peter S. Martin, William G. Sheard
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Publication number: 20200369798Abstract: The present invention provides polymer compositions having improved corrosivity, color stability and clarity. Also disclosed is a process of preparing the polymers. The process may comprise incorporating into the polymer an acid neutralizing amount of an amorphous aluminum silicate. The amorphous aluminum silicate may be present in the polymer in an amount such that the polymer composition having a Corrosivity Index of less than 6. A refractive index of the amorphous aluminum silicate may be the same or substantially the same as a refractive index of the polymer.Type: ApplicationFiled: February 1, 2019Publication date: November 26, 2020Applicant: W. R. Grace & Co.-Conn.Inventors: Amaia Montoya-Goni, John Kaarto, Michelle Ni Paine, Jose Manuel Rego, Feng Gu, Demetrius Michos, James Neil Pryor
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Patent number: 10336840Abstract: 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: GrantFiled: October 28, 2014Date of Patent: July 2, 2019Assignee: 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
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Patent number: 9683096Abstract: 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: GrantFiled: August 19, 2010Date of Patent: June 20, 2017Assignee: Braskem America, Inc.Inventors: John Kaarto, Alechia Crown, Li-Min Tau, Gert J. Claasen
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Publication number: 20160251462Abstract: 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: ApplicationFiled: October 28, 2014Publication date: September 1, 2016Applicant: 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
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Patent number: 9109106Abstract: 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: GrantFiled: May 25, 2011Date of Patent: August 18, 2015Assignee: Braskem America, Inc.Inventors: Peter S. Dias, Li-Min Tau, John Kaarto
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Patent number: 9085682Abstract: 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: GrantFiled: May 25, 2011Date of Patent: July 21, 2015Assignee: Braskem America, Inc.Inventors: Peter S. Dias, Li-Min Tau, John Kaarto
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Patent number: 8809461Abstract: 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: GrantFiled: April 28, 2011Date of Patent: August 19, 2014Assignee: Braskem America, Inc.Inventors: Alechia Crown, Debra R. Wilson, John Kaarto
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Publication number: 20140124405Abstract: 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: ApplicationFiled: July 27, 2012Publication date: May 8, 2014Applicant: Dow Global Technologies LLCInventors: Li-Min Tau, Chai-Jing Chou, John Kaarto, Peter S. Martin, William G. Sheard
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Publication number: 20130237111Abstract: 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: ApplicationFiled: July 19, 2011Publication date: September 12, 2013Applicant: BRASKEM AMERICA, INC.Inventors: Alechia Crown, Gert Claasen, Jacquelyn Degroot, Thor Gudmundsson, Charles Crosby, Li-Min Tau, John Kaarto
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Patent number: 8404324Abstract: 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: GrantFiled: April 14, 2010Date of Patent: March 26, 2013Assignee: Braskem America, Inc.Inventors: William G. Lutz, John Kaarto, Robert J. Donald
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Patent number: 8378045Abstract: 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: GrantFiled: June 21, 2010Date of Patent: February 19, 2013Assignee: Dow Global Technologies LLCInventors: John Kaarto, Linfeng Chen, Tak W. Leung
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Publication number: 20120301682Abstract: 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: ApplicationFiled: May 25, 2011Publication date: November 29, 2012Applicant: Dow Global Technologies LLCInventors: Peter S. Dias, Li-Min Tau, John Kaarto
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Publication number: 20120276312Abstract: 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: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: Alecia Crown, Debra R. Wilson, John Kaarto
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Publication number: 20120045956Abstract: 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: ApplicationFiled: August 19, 2010Publication date: February 23, 2012Applicant: Dow Global Technologies Inc.Inventors: Li-Min Tau, Gert J. Claasen, Charles R. Crosby, III, Alechia Crown, John Kaarto