Patents Assigned to Equistar Chemicals, LP
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Publication number: 20240084115Abstract: Compounded virgin low density polyethylene (virgin LDPE) and post-consumer recyclate low density polyethylene, linear low density polyethylene or a combination of low and linear low density polyethylene compositions with improved processability and mechanical properties, including processes of making, products and application in food and non-food packaging are described herein.Type: ApplicationFiled: September 7, 2023Publication date: March 14, 2024Applicant: EQUISTAR CHEMICALS, LPInventor: ROBERT SCOTT WEBER
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Publication number: 20240043666Abstract: Compositions comprising a blend of a first HDPE component having a relatively higher density and lower molecular weight and a second HDPE component, having a relatively lower higher density and higher molecular weight, are provided. The blends demonstrate improved ESCR performance relative to currently available HDPE products at a given density.Type: ApplicationFiled: July 27, 2023Publication date: February 8, 2024Applicant: Equistar Chemicals, LPInventors: Sameer D. Mehta, Harilaos Mavridis
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Publication number: 20230357550Abstract: A composition comprising a blend of a propylene-based copolymer composition and a polybutene elastomer and having a balance of softness and strength in combination with enhanced optical properties is provided. A film comprising a propylene-based copolymer composition and a polybutene elastomer is also provided. The film can have the propylene-based copolymer composition and the polybutene elastomer as separate layers in a multilayer structure or a single layer can be formed from a blend of the propylene-based copolymer composition and the polybutene elastomer. Methods for making the compositions and films are also provided.Type: ApplicationFiled: May 2, 2023Publication date: November 9, 2023Applicant: EQUISTAR CHEMICALS, LPInventors: BRYAN S. SCHLEY, FABIO CECCARANI, RYAN KRAMB
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Patent number: 11753534Abstract: Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend.Type: GrantFiled: November 16, 2021Date of Patent: September 12, 2023Assignee: Equistar Chemicals, LPInventors: Nicholas M. Briggs, Ryan Kramb, Bryan S. Schley, Timothy J. Skillman, Jeffrey J. Strebel, Jeanine A. Smith, David C. Holliman, Rocio S. Garay, Gilles Jobin
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Patent number: 11584846Abstract: The present disclosure generally relates to carbon fiber reinforced polyolefin compositions, which may have a relatively low density. The compositions may include a thermoplastic olefin, a filler component, a compatibilizer, and/or an additive package. In some embodiments, the filler component includes a plurality of carbon fibers. In addition, articles of manufacture and methods of making a carbon fiber reinforced polyolefin composition are provided.Type: GrantFiled: May 2, 2018Date of Patent: February 21, 2023Assignee: Equistar Chemicals, LPInventors: Jue Lu, Changlai Yang, Michael J. Dammann
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Publication number: 20230050126Abstract: Methods for processing polyolefin recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. polyolefin recyclate feedstocks can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed polyolefin recyclates. Processed polyolefin recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both polyolefin recyclate and/or pre-consumer polyolefins.Type: ApplicationFiled: June 21, 2022Publication date: February 16, 2023Applicant: EQUISTAR CHEMICALS, LPInventors: HARILAOS MAVRIDIS, MICK C. HUNDLEY, SAMEER D. MEHTA, MARCO CONSALVI, GERHARDUS MEIER, LINDSAY CORCORAN
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Publication number: 20230023978Abstract: Methods for processing LDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. LDPE recyclate can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed LDPE recyclates. Processed LDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both LDPE recyclate and/or pre-consumer polyolefins.Type: ApplicationFiled: June 21, 2022Publication date: January 26, 2023Applicant: EQUISTAR CHEMICALS, LPInventors: HARILAOS MAVRIDIS, MICK C. HUNDLEY, SAMEER D. MEHTA, MARCO CONSALVI, GERHARDUS MEIER, LINDSAY E. CORCORAN, ANDREAS MAUS, TIMO HEES, PASCAL REBMANN, DIANA DOETSCH, KATHARINA ELSAS
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Publication number: 20220410458Abstract: Methods for processing HDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. HDPE recyclate can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed HDPE recyclates. Processed HDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both HDPE recyclate and/or pre-consumer polyolefins.Type: ApplicationFiled: June 21, 2022Publication date: December 29, 2022Applicant: EQUISTAR CHEMICALS, LPInventors: HARILAOS MAVRIDIS, MICK C. HUNDLEY, SAMEER D. MEHTA, MARCO CONSALVI, GERHARDUS MEIER, LINDSAY E. CORCORAN
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Publication number: 20220402187Abstract: Methods for processing HDPE and/or MDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. HDPE and/or MDPE recyclate feedstocks can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed HDPE recyclate and/or processed MDPE recyclates. Processed HDPE recyclate and/or processed MDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both HDPE and/or MDPE recyclate and/or pre-consumer polyolefins.Type: ApplicationFiled: June 21, 2022Publication date: December 22, 2022Applicant: EQUISTAR CHEMICALS, LPInventors: HARILAOS MAVRIDIS, MICK C. HUNDLEY, SAMEER D. MEHTA, MARCO CONSALVI, GERHARDUS MEIER, LINDSAY E. CORCORAN, ROCIO S. GARAY, TIMOTHY J. SKILLMAN, ERIC D. DAY
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Publication number: 20220402188Abstract: Methods for processing LLDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. LLDPE recyclate can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed LLDPE recyclates. Processed LLDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both LLDPE recyclate and/or pre-consumer polyolefins.Type: ApplicationFiled: June 21, 2022Publication date: December 22, 2022Applicant: EQUISTAR CHEMICALS, LPInventors: HARILAOS MAVRIDIS, MICK C. HUNDLEY, SAMEER D. MEHTA, MARCO CONSALVI, GERHARDUS MEIER, LINDSAY E. CORCORAN
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Publication number: 20220396689Abstract: Compounded virgin and post-consumer recyclate HDPE compositions with improved processability and mechanical properties, including processes of making, products and application in food packaging are described herein.Type: ApplicationFiled: June 8, 2022Publication date: December 15, 2022Applicant: EQUISTAR CHEMICALS, LPInventor: D. RYAN BREESE
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Patent number: 11474054Abstract: 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: GrantFiled: October 22, 2019Date of Patent: October 18, 2022Assignee: Equistar Chemicals, LPInventors: Steven M. Wilhelm, Kristy S. McKenna
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Publication number: 20220290010Abstract: A multilayer film having enhanced toughness and optical properties is provided. The multilayer film includes a base layer, an outer layer, and a tie layer between the base layer and the outer layer. The multilayer film can also include additional layers. Methods for making such multilayer films are also provided. Multilayer films according to the present invention are particularly useful packaging applications where rupture resistance and high clarity are desirable.Type: ApplicationFiled: March 10, 2022Publication date: September 15, 2022Applicant: EQUISTAR CHEMICALS, LPInventors: MICK C. HUNDLEY, GANG ZHANG, WILLIAM R. PODBORNY
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Patent number: 11376828Abstract: 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: GrantFiled: October 22, 2019Date of Patent: July 5, 2022Assignee: Equistar Chemicals, LPInventors: Lindsay E. Corcoran, Thomas J. Schwab
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Publication number: 20220177681Abstract: Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend.Type: ApplicationFiled: November 16, 2021Publication date: June 9, 2022Applicant: EQUISTAR CHEMICALS, LPInventors: NICHOLAS M. BRIGGS, RYAN KRAMB, BRYAN S. SCHLEY, TIMOTHY J. SKILLMAN, JEFFREY J. STREBEL, JEANINE A. SMITH, DAVID C. HOLLIMAN, ROCIO S. GARAY, GILLES JOBIN
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Patent number: 11242498Abstract: 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: GrantFiled: November 7, 2019Date of Patent: February 8, 2022Assignee: Equistar Chemicals, LPInventor: Maged G. Botros
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Patent number: 11021551Abstract: Catalyst systems and solution olefin polymerization processes using a combination of titanium compounds (e.g. halides) with vanadium compounds (e.g. halides or oxyhalides) with tri-n-octyl aluminum (TNOAL) as a co-catalyst, which provides lower in situ oligomerization of olefins that are incorporated into the homopolymer. This feature provides a higher density homopolymer using TNOAL, which enhances polymer properties such as increased moisture barrier and stiffness. Multi-reactor systems and solution olefin polymerization processes comprising this catalyst system.Type: GrantFiled: August 2, 2018Date of Patent: June 1, 2021Assignee: Equistar Chemicals, LPInventors: Michael W. Lynch, D. Ryan Breese, Thomas J. Schwab
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Patent number: 11015039Abstract: A polymer composition and/or an article containing: (a) a random propylene terpolymer which comprises: (i) 90.0-96.0 wt. %, based on the total weight of the propylene terpolymer, of propylene derived units; (ii) 3.0-7.0 wt. %, based on the total weight of the propylene terpolymer, of 1-butene derived units; and (iii) 1.0-5.0 wt. %, based on the total weight of the propylene terpolymer, of ethylene derived units; and (b) about 0.01 to about 1.0 wt. %, based on the total weight of the propylene terpolymer, of a clarifying agent, with the balance of the polymer composition being the random propylene terpolymer and/or optionally at least one additive.Type: GrantFiled: August 7, 2015Date of Patent: May 25, 2021Assignees: Equistar Chemicals, LP, Baseli Polioiefine Italia S.r.l.Inventors: Ambra Montaletti, Roberta Marzolla, Jean-Pierre Bideau, Giampaolo Pellegatti, Tim Schloemer, Tim Skillman
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Patent number: 10920056Abstract: 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: GrantFiled: June 14, 2019Date of Patent: February 16, 2021Assignee: Equistar Chemicals, LPInventors: Jue Lu, Changlai Yang, Michael J. Dammann
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Publication number: 20200362121Abstract: Compositions and methods of prepared next generation pipe resins from bimodal high molecular weight high density polyethylene with improved long-term hydrostatic strength are described.Type: ApplicationFiled: May 12, 2020Publication date: November 19, 2020Applicant: EQUISTAR CHEMICALS, LPInventors: SAMEER D. MEHTA, Ndiba N. Dioh