Abstract: This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, ?int., greater than or equal to 0.01, satisfying 0.01×(Z?50)0.78??int.?0.01×(Z?60)0.78 inequality wherein Z is a normalized molecular weight defined by Z = M w M e where Mw and Me are the weight average and entanglement molecular weights, and; a residual catalytic metal of from ?0.03 to ?5 ppm of hafnium. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.855 to about 0.975 g/cc, a polydispersity, M w M n , from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.
Abstract: A metal complex of the formula (1) TCyLMZp (1), wherein M is a group 4 metal, Z is an anionic ligand, p is the number 1 or 2, TCy is a thiophene-fused cyclopentadienyl-type ligand of the formula (2) is described. Methods of making and using the metal complex are also described.
Type:
Grant
Filed:
December 13, 2018
Date of Patent:
February 14, 2023
Inventors:
Alexandra Berthoud, Maxence Valla, Georgy P. Goryunov, Oleg V. Samsonov, Dmitry Y. Mladentsev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.
Type:
Grant
Filed:
October 20, 2020
Date of Patent:
February 14, 2023
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, Jr., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
Abstract: The present invention relates to a novel ligand compound, a transition metal compound and a catalyst composition comprising the same. The novel ligand compound and the transition metal compound of the present invention may be useful as a catalyst of polymerization reaction for preparing an olefin-based polymer having a low density.
Abstract: The present disclosure provides a method that embodies a simple and effective route to remove homogeneous catalysts from solutions wherein NMR/MRI signal amplification by reversible exchange (SABRE) or parahydrogen-induced polarization (PHIP) is performed. A method for recovering a homogeneous SABRE/PHIP catalyst for reuse is also described.
Type:
Grant
Filed:
February 17, 2020
Date of Patent:
February 7, 2023
Assignees:
Board of Trustees of Southern Illinois University, Vanderbilt University, The Regents of the University of California
Inventors:
Boyd M. Goodson, Eduard Y. Chekmenev, Igor V. Koptyug, Kirill V. Kovtunov, Roman V. Shchepin, Bryce E. Kidd, Jonathan Gesiorski, Max E. Gemeinhardt, Danila A. Barskiy
Abstract: The present invention describes a process for preparing isopropylidene bis(cyclopentadienyl)zirconium dichloride comprising the steps of: (a) reacting acetone and cyclopentadiene in the presence of sodium methoxide or sodium ethoxide so as to form 2,2-dicyclopentadienylpropane; and (b) reacting said 2,2-dicyclopentadienylpropane with zirconium(IV) chloride in the presence of n-butyl lithium so as to form isopropylidene bis(cyclopentadienyl) zirconium dichloride.
Abstract: A metal complex of the formula (1) InCyLMZp (1), wherein M is a group 4 metal, Z is an anionic ligand, p is number of 1 to 2, InCy is an indole fused cyclopentadienyl-type ligand of the formula (2) wherein R1 independently is a C1-C4-alkyl, m is a number of 0 to 4, R2 is a C1-C10-alkyl, C5-C10-cycloalkyl, or a C6-C10-aryl unsubstituted or substituted with C1-C10-alkyl or C1-C4-dialkyl amino, R3, R4 and R5 each is independently selected from hydrogen, C1-C4-alkyl, C6-C10-aryl unsubstituted or substituted with C1-C4-alkyl, halide, or both of C1-C4-alkyl and halide and, L is an amidinate ligand of the formula (3a) wherein the amidine-containing ligand (3a) is bonded to the metal M via the imine nitrogen atom N2, wherein R7 is independently selected from C1-C4-alkyl and halide and q is a number of 0 to 4, Sub4 is a cyclic or linear aliphatic or aromatic substituent.
Type:
Grant
Filed:
April 15, 2019
Date of Patent:
January 24, 2023
Inventors:
Georgy Pavlovich Goryunov, Oleg Vladimirovich Samsonov, Dmitry Vadimovich Uborsky, Alexander Zel'Manovich Voskoboynikov, Alexandra Berthoud, Maxence Valla
Abstract: Catalyst system, the catalyst system comprising (i) at least one metallocene complex of formula (I) wherein Mt1 is Hf, X is a sigma-donor ligand, R1, R2, R3 are the same or different from each other and can be hydrogen or a saturated linear or branched C1-C10 alkyl, whereby the alkyl group can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, or R1 and R2 or R2 and R3 can form a ring having 4 to 6 C-atoms and 1 to 3 double bonds, R4 and R5 are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, n can be 1 to 5, Ar is a C6-C20-aryl or -heteroaryl group, which can be unsubstituted or substituted by 1 to 5 linear or branched C1-C10 alkyl group(s), and (ii) an aluminoxane cocatalyst and (iii) optionally an aluminium alkyl compound AI(R7)3, with R7 being a linear or branched C2-C8-alk
Type:
Grant
Filed:
March 28, 2018
Date of Patent:
January 24, 2023
Assignee:
Borealis AG
Inventors:
Luigi Maria Cristoforo Resconi, Noureddine Ajellal, Anna Fait, Irfan Saeed, Maria Ranieri, David Quin, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Oleg Samsonov, Alexander Z. Voskoboynikov
Abstract: The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum content in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.
Type:
Grant
Filed:
January 9, 2019
Date of Patent:
January 24, 2023
Inventors:
Bog Ki Hong, Jin Young Park, Si Jung Lee, Yi Young Choi, Soung Hun Yoo, Sunghyun Park, Chang Woan Han, Sun Mi Kim
Abstract: New bisindenyl ligand complexes and catalysts comprising those complexes. The invention is directed to improving the manufacturing of specific C1-symmetric bisindenyl complexes by modifying one of the indenyl ligands in order to improve the selectivity of the complex synthesis towards the desired anti-isomer, increase the yield and simplify the purification of the complex. The invention also relates to the use of the new bisindenyl metallocene catalysts for the production of polypropylene homopolymers or propylene copolymers.
Type:
Grant
Filed:
March 18, 2019
Date of Patent:
January 3, 2023
Assignee:
Borealis AG
Inventors:
Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov, Ville Virkkunen, Luigi Maria Cristoforo Resconi
Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; and satisfies the following requirements (provided that S1+S2+S3=1), when measuring the relative content of peak area according to melting temperature (Tm) using SSA (Successive Self-nucleation and Annealing) analysis: the content(S1) of peak area at Tm less than 100° C. is 0.33 to 0.35; the content(S2) of peak area at Tm of 100° C. or more and 120° C. or less is 0.52 to 0.56; and the content(S3) of peak area at Tm greater than 120° C. is 0.10 to 0.14.
Type:
Grant
Filed:
December 20, 2019
Date of Patent:
January 3, 2023
Inventors:
Jeongkyu Lee, Sung Min Lee, Hyojoon Lee, Chang Hwan Jang, Sung Ho Park, Seul Ki Im, Jinyoung Lee, Sung Joon Oh, Seyoung Kim, Jisoo Song
Abstract: The present invention relates to an olefin-based polymer, which has (1) a density (d) ranging from 0.85 to 0.90 g/cc, (2) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 0.1 g/10 min to 15 g/10 min, (3) the density (d) and the melt temperature (Tm) satisfying Tm (° C.)=a×d?b of Equation 1 (2,350<a<2,500, and 1,900<b<2,100), and (4) a ratio (hardness/Tm) of the hardness (shore A) to the melt temperature (Tm) in a range of 1.0 to 1.3. The olefin-based polymer according to the present invention exhibits excellent anti-blocking properties due to having improved hardness as a low-density olefin-based polymer.
Type:
Grant
Filed:
December 24, 2018
Date of Patent:
January 3, 2023
Inventors:
Sang Eun Park, Eun Jung Lee, Hyun Jin Ju, In Sung Park, Kyung Bok Bae, Choong Hoon Lee
Abstract: Provided herein is a composition for treating aluminum containing surfaces, wherein the composition includes a reaction product of at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and at least one fatty acid, wherein the molar ratio of the amino group/s of the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and of the at least one fatty acid is 1.2:1 to 1:2, and wherein the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof is linked to the at least one fatty acid by at least one carboxylic acid/amine salt bond and/or at least one amide bond.
Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I), M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula I has M=Hf, X is a sigma ligand, R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms, R1 is a C6-C20-aryl, which can be unsubstituted or substituted by one or up to 5 linear or branched C1-C10 alkyl group(s), R2 is a saturated linear or cyclic C3-C20 alkyl group or a branched CR3R4R5 group, wherein R3 is hydrogen or an C1-C20 alkyl group and R4 and R5 are the same or are different and can be an C1-C20 alkyl group and (ii) a boron containing cocatalyst.
Type:
Grant
Filed:
December 12, 2017
Date of Patent:
December 20, 2022
Assignee:
Borealis AG
Inventors:
Noureddine Ajellal, Anna Fait, Luigi Resconi, Vyatcheslav Izmer, Dmitry Kononovich, Alexander Voskoboynikov, Rafael Sablong, Timo Sciarone
Abstract: The present disclosure generally relates to processes to produce alpha-olefin oligomers and poly alpha-olefins. In an embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin and a first catalyst system comprising a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes PAO dimer comprising at least 96 mol % of vinylidene and 4 mol % or less of trisubstituted vinylene and disubstituted vinylene, based on total moles of vinylidene, trisubstituted vinylene, and disubstituted vinylene. The method includes introducing the first reactor effluent, a second alpha-olefin and a second catalyst composition comprising an acid catalyst into a second reactor under second reactor conditions to form a second reactor effluent comprising PAO trimer.
Type:
Grant
Filed:
June 28, 2021
Date of Patent:
December 13, 2022
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Patrick C. Chen, Mark H. Li, Jennifer L. Rapp, Monica D. Lotz, Babak LotfizadehDehkordi, Craig J. Emett, Najeeb M. Kuzhiyil, Jian Yang
Abstract: The present invention relates to an olefin-based polymer, which has (1) a density (d) ranging from 0.850 to 0.865 g/cc, (2) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 0.1 g/10 min to 3.0 g/10 min, and (3) a soluble fraction (SF) of 10 wt % or more at ?20° C. in cross-fractionation chromatography (CFC), in which a weight average molecular weight (Mw) of the soluble fraction is in a range of 50,000 g/mol to 500,000 g/mol. The olefin-based polymer according to the present invention exhibits improved anti-blocking properties as a low-density olefin-based polymer.
Type:
Grant
Filed:
December 24, 2018
Date of Patent:
December 6, 2022
Inventors:
Eun Jung Lee, Hyun Jin Ju, In Sung Park, Sang Eun Park, Kyung Bok Bae, Choong Hoon Lee
Abstract: Embodiments of the present disclosure are directed towards catalyst formulations including a metallocene and a stearic compound selected from bis 2-hydroxyethyl stearyl amine, aluminum distearate, and combinations thereof, where the metallocene is represented by the following formula: (Formula (I)) wherein each n-PR is n-propyl, and each X is independently CH3, Cl, or F.
Type:
Grant
Filed:
March 4, 2019
Date of Patent:
December 6, 2022
Assignee:
Univation Technologies, LLC
Inventors:
Wesley R. Mariott, John F. Szul, Haiqing Peng, James M. Farley, Bruce J. Savatsky, Brandon C. Locklear
Abstract: A nano platelet gibbsite treated with compound of formula (ORa)3Si—Rb or of formula Rc—COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical is used as a catalyst support.
Abstract: A process for preparing an olefin polymer, including the steps of forming a particulate olefin polymer in a gas-phase polymerization reactor in the presence of a C3-C5 alkane as polymerization diluent, separating discharged polyolefin particles from concomitantly discharged gas at a pressure from 1 to 2.2 MPa, degassing the polyolefin particles at a pressure from 0.1 to 0.4 MPa with a gas made from or containing a C3-C5 alkane; and transferring the separated gas and the gas from the degassing to a work-up unit operated at a pressure from 0.001 to 0.2 MPa below the pressure of the separation, wherein the gas for degassing is continuously received from the work-up unit.
Type:
Grant
Filed:
August 2, 2018
Date of Patent:
November 22, 2022
Assignee:
Basell Polyolefine GmbH
Inventors:
Gabriele Mei, Giulia Mei, Giuseppe Penzo
Abstract: A main purpose of the present invention is to provide a multi-block copolymer composition having good elasticity and excellent stress relaxation properties, as well as small tension set. The present invention achieves the purpose by providing a multi-block copolymer composition obtained by a modification treatment, the composition including a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond to a block copolymer A; wherein the block copolymer A includes a block copolymer A1 having a specific primary structure and a block copolymer A2 having a specific primary structure, and the mass ratio (A1/A2) of the block copolymer A1 and the block copolymer A2 is 100/0 to 50/50.
Type:
Grant
Filed:
August 23, 2018
Date of Patent:
November 8, 2022
Assignees:
ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY