Patents Assigned to Equistar Chemicals, LP
  • Patent number: 10723049
    Abstract: This disclosure provides for compatibilizer compositions that are useful in compounding polypropylenes and ethylene elastomeric copolymers for injection molding applications. The compatibilizer includes a combination of: Component A of polypropylene homopolymers or polypropylene copolymers containing small amounts of ethylene; and Component B of propylene bipolymers with ethylene and/or other ?-olefin comonomers, the bipolymer having a relatively high proportion of propylene moieties, for example, 50-75% propylene. Compared to known or conventional compatibilizer formulations, the bipolymer Component B is relatively propylene rich and generally can be used in the injection molding composition in lower concentrations.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 28, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Ryan Kramb, Jeanine A. Smith, Fabio Ceccarani
  • Patent number: 10654961
    Abstract: The present disclosure provides a peroxide-modified polyethylene, related compositions, and wire-and-cable products made therefrom. The process for preparing the peroxide-modified polyethylene including the steps of: (A) preparing a first Ziegler-Natta-catalyzed polyethylene in a first reactor; (B) transferring the first Ziegler-Natta-catalyzed polyethylene from the first reactor to a second reactor; (C) admixing a first amount of an organic peroxide to the second reactor; (D) reacting the organic peroxide with a polyethylene composition made from or containing the first Ziegler-Natta-catalyzed polyethylene, thereby coupling the polyethylene components and forming the peroxide-modified polyethylene; and (E) collecting the peroxide-modified polyethylene.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: May 19, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Chun D. Lee, Mick C. Hundley, Cindy Flenniken
  • Patent number: 10654956
    Abstract: The present disclosure generally relates to ethylene alpha-olefin copolymers and methods of making ethylene alpha-olefin copolymers. The ethylene alpha-olefin copolymers may have a density of about 0.915 g/mL to about 0.918 g/mL, a rheological polydispersity index greater than 0.8, a melt index of about 0.4 dg/10 min to about 2.0 dg/10 min, and/or a CEF T50 of 84° C. or less. The ethylene alpha-olefin copolymers may be made by combining an ethylene monomer and one or more alpha-olefin monomers in the presence of a catalyst, such as a Ziegler-Natta catalyst.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 19, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Harilaos Mavridis, Roberta Pica, Pietro Baita, Gabriele Mei, Massimo Covezzi
  • Patent number: 10654996
    Abstract: The present disclosure provides a method for crosslinking polyolefins through using a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier and related moisture-crosslinkable polyolefin-based compositions. The method is for crosslinking a first polyolefin includes the steps of: (A) selecting a second polyolefin being substantially-miscible with the first polyolefin and having particles of a morphology selected from the group consisting of powder and substantially spherical; (B) admixing the second polyolefin to the first polyolefin; (C) adsorbing a silane-crosslinking agent onto the second polyolefin, thereby rendering a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier; (D) melt blending the first polyolefin and the substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier, thereby yielding a moisture-crosslinkable polyolefin-based composition; and (E) crosslinking the moisture-crosslinkable polyolefin-based composition.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 19, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Cindy L. Flenniken, Chun D. Lee
  • Publication number: 20200140778
    Abstract: A lubricant composition is described. The novel lubricant composition has superior thermal stability, and can reduce the need to replenish the lubricant. The lubricant composition includes at least a soap component, a thickener component, an oil component, and a spherical polyolefin component (optionally Microthene). The spherical polyolefin component includes polyolefin microparticles.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 7, 2020
    Applicant: EQUISTAR CHEMICALS, LP
    Inventor: MAGED G. BOTROS
  • Publication number: 20200140667
    Abstract: A molded in-color composition comprising a thermoplastic olefin resin composition, a compatibilizer composition, and one or more pigments. The molded in-color composition has: (i) a ?L* value within ?1.0 to 0 of a L* value for a standard, wherein the L* value for the standard is about 24.85; (ii) a ?a* value within ±0.3 of a a* value for a standard, wherein the a* value for the standard is about ?0.09; (iii) a ?b* value within ±0.3 of a b* value for a standard, wherein the b* value for the standard is about ?0.74, and (iv) a ?E* value?1.0. Articles made from the molded in-color composition include a variety of articles, including but not limited to, at least parts of an automobile.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: PERRY J. BANTA, MICHAEL J. DAMMANN
  • Patent number: 10633466
    Abstract: A low density polyethylene composition characterized by having a density in range of 0.91 to 0.94 gm/cm3, a melt index in the range of 1 to 5 g/10 minutes, a gel permeation chromatography branching index in the range of 1.2 to 1, a polydispersity index in the range of 3.5 to 7.5, a viscosity ratio in the range of 0.7 to 1, and a long chain branching frequency greater than zero at a log molecular weight (log(MW)) value in the range of 4 to 5.5. Film formed from the polyethylene compositions with favorable haze and gloss characteristics, and a process for forming such film, are also described.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: April 28, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Maged G. Botros, Allen L. Brown, Stephen M. Imfeld
  • Publication number: 20200122445
    Abstract: Film structures and related methods and uses thereof are described herein. One or more of the film structures generally include an A layer, a B layer and a C layer. The B layer is positioned between the A layer and the C layer. The A layer includes high density polyethylene. The B layer includes linear low density polyethylene and a nucleating agent. The C layer includes one or more polymers. One or more of the related methods include methods for producing film structures including an A layer, a B layer, and a C layer.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 23, 2020
    Applicant: Equistar Chemicals, LP
    Inventors: Lindsay E. Corcoran, Thomas J. Schwab
  • Publication number: 20200124547
    Abstract: Provided herein are apparatuses that include a testing device and a controller. The testing device may include a chamber, a sample holder, a temperature sensor, and a heater band or a heater. The controller may be in communication with at least one of the temperature sensor and the heater band or the heater. The apparatuses may include one or more testing devices, and the testing devices may be arranged in a bin. Methods of performing a test with the apparatuses are also provided.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 23, 2020
    Applicant: Equistar Chemicals, LP
    Inventors: Steven M. Wilhelm, Kristy S. McKenna
  • Patent number: 10604610
    Abstract: The present disclosure provides a peroxide-modified polyethylene and related compositions as well as films, sheets, and multilayer structures made therefrom. A film composition is made from or containing a peroxide-modified polyethylene composition made from or containing a peroxide-modified polyethylene made from or containing the reaction products of a polyethylene composition made from or containing a first Ziegler-Natta-catalyzed polyethylene and a first amount of an organic peroxide to the second reactor.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 31, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Stephen M. Imfeld, D. Ryan Breese
  • Patent number: 10570270
    Abstract: Provided herein are polyolefin-based compositions useful for making rotomolded parts having useful properties, including those related to impact resistance and color. In one aspect, there are provided compositions comprising (a) a rotational molded polyolefin, comprising a resin, wherein the resin is polyethylene or a copolymer thereof, having a melt index (MI) ranging from about 1 g/10 minutes to about 10 g/10 minutes; and (b) an additive package comprising: (i) an antioxidant; (ii) a processing stabilizer; (iii) optionally a UV light stabilizer; (iv) optionally a fatty acid-based acid scavenger comprising a metal salt of a fatty acid; and (v) a dihydrotalcite-based acid scavenger present in the composition at between about 800 ppm to about 3,000 ppm. In some embodiments, the ARM Impact Percent Ductility is greater than or equal to about 60% for a molded part made from the cured composition and measured after the composition has been cured between 18-24 minutes at a temperature of 550° F.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: February 25, 2020
    Assignee: Equistar Chemicals, LP
    Inventors: Steven W. Horwatt, Kelly A. Enderle
  • Publication number: 20190382568
    Abstract: Low density polyolefin compositions with improved stiffness, impact balance, and high dimensional stability are described. These compositions are useful for making automotive components, such as injection molded parts, as well as other articles of manufacture. The compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 55 wt. % to about 72 wt. %; (b) a first elastomer and a second elastomer that are not the same, wherein the combined weight percent of components (b) ranges from about 18 wt. % to about 33 wt. %; (c) a filler present in an amount ranging from about 6 wt. % to about 12 wt. %; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %, all wt. % are based on the total weight of the composition.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 19, 2019
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: JUE LU, CHANGLAI YANG, MICHAEL J. DAMMANN
  • Patent number: 10501613
    Abstract: The present disclosure relates to pipes comprising bimodal high molecular weight high density polyethylene which has been extruded in the presence of one or more organic peroxides that are present in an amount ranging from 30 ppm to 200 ppm. The pipe has an improved long-term hydrostatic strength. Also provided are methods for preparing pipes having these characteristics.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 10, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Harilaos Mavridis, Chun D. Lee, Steven W. Horwatt, Sameer D. Mehta
  • Publication number: 20190315950
    Abstract: The present disclosure provides a low-smoke, non-halogenated flame retardant composition made from or containing (a) a first ethylene/vinyl acetate copolymer, having a total content of vinyl acetate-derived units in an amount from about 15 to about 45 weight percent, based upon the total weight of the ethylene/vinyl acetate copolymer; (b) a coupling agent; (c) magnesium dihydroxide; (d) hydromagnesite; and (e) huntite.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 17, 2019
    Applicant: EQUISTAR CHEMICALS, LP
    Inventor: CHUN D. LEE
  • Patent number: 10435549
    Abstract: The present disclosure provides a thermoplastic olefinic composition made from or containing: (A) a first polymer composition made from or containing a homopolymer polypropylene; (B) a second polymer composition made from or containing a polypropylene polymer grafted with an unsaturated monomer; (C) a third polymer composition made from or containing a first elastomeric ethylene copolymer; and (D) a carbon fiber composition made from or containing a carbon fiber coupled with a sizing composition. Optionally, the thermoplastic olefinic composition may be further made from or contain (a) a fourth polymer composition made from or containing a heterophasic polypropylene copolymer, (b) a fifth polymer composition made from or containing a second elastomeric ethylene composition, (c) an inorganic filler composition, (d) an additives composition, or (e) any combination of these components. The thermoplastic olefinic composition is suitable for use as a metal-replacement component, including automotive components.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: October 8, 2019
    Assignee: Equistar Chemicals, LP
    Inventor: Alberto Prieto
  • Publication number: 20190300659
    Abstract: Provided herein are liquid-containing masterbatches and methods of forming liquid-containing masterbatches. The methods may include providing a mixture including an organosilane and porous particles; and heating the mixture at a temperature effective to adsorb at least a portion of the organosilane to one or more surfaces of the porous particles to form a polyolefin master batch. An organosilane may be present in a polyolefin master batch in an amount ranging from about 10% to about 50% by weight of the polyolefin master batch, and the porous particles may include [1] polypropylene, [2] a copolymer including (i) a propylene monomer and (ii) at least one of an ethylene monomer and a butene monomer, or [3] a combination thereof.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 3, 2019
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: CINDY L. FLENNIKEN, CHUN D. LEE
  • Patent number: 10385191
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: August 20, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Changlai Yang, Dongman Choi
  • Patent number: 10358547
    Abstract: The present disclosure generally relates to low density compositions useful for making automotive components, such as molded parts, as well as other articles of manufacture; such compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 53 wt. % to about 65 wt. %, based on a total weight of the composition; (b) a first elastomer, a second elastomer, and an impact-modifying compatibilizer, wherein the combined weight percent of components (b) ranges from about 27 wt. % to about 32 wt. %, based on the total weight of the composition; (c) a filler present in an amount ranging from about 5 wt. % to about 12 wt. %, based on the total weight of the composition; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 23, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Peter J. Glenister, Michael J. Dammann, Changlai Yang
  • Patent number: 10266727
    Abstract: Tie-layer adhesives having graft compositions for bonding to metal substrates is disclosed. The graft compositions are made up of the reaction product of a live, grafted polyolefin and an olefin elastomer. The grafted polyolefin is first made by heating a polyolefin and an unsaturated monomer. Further reaction of the live, grafted polyolefin with an olefin elastomer provides the graft composition. Grafting efficiency is boosted dramatically by the presence of the olefin elastomer and use of the additional reaction step. The graft composition, when formulated into a tie-layer adhesive provides improved bonding to metal substrates.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 23, 2019
    Assignee: Equistar Chemicals, LP
    Inventor: Maged G. Botros
  • Patent number: 10240072
    Abstract: The present disclosure provides a polyolefin-based composition, suitable for use as a tie-layer adhesive composition, and a process for making the polyolefin-based composition. The polyolefin-based composition is made from and/or contains a grafted polyolefin copolymer composition, a base resin composition, and optionally, an additives composition. The grafted polyolefin copolymer composition is made from and/or contains a grafted polyolefin composition, an olefin elastomer composition, and a long-chain branched polyolefin composition. The grafted polyolefin is coupled to the olefin elastomer and the long-chain branched polyolefin.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: March 26, 2019
    Assignee: Equistar Chemicals, LP
    Inventor: Maged G. Botros