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1. 发明公开

US20240360257A1 POLYPROPYLENE-ULTRAHIGH-MOLECULAR-WEIGHTS-POLYETHYLENE COMPOSITIONS 审中-公开
公开(公告)号：US20240360257A1
公开(公告)日：2024-10-31
申请号：US18769481
申请日：2024-07-11
申请人： BOREALIS AG
发明人： Pauli Leskinen , Jingbo Wang , Markus Gahleitner , Klaus Bernreitner
IPC分类号： C08F210/06 , C08F2/00 , C08F4/659 , C08F4/6592 , C08F210/02 , C08F210/14 , C08L23/16
CPC分类号： C08F210/06 , C08F2/001 , C08F4/65912 , C08F4/65927 , C08F210/02 , C08F210/14 , C08L23/16 , C08L2203/18 , C08L2207/068 , C08L2314/06
摘要： PP/UHMW-PE (Polypropylene-Ultrahigh-Molecular-Weight-Polyethylene)

composition having

a melting temperature Tm in the range of 125 to 150° C. (DSC, ISO 11357, Part 3),

an MFR2 of 0.15 to 0.60 g/10 min (2.16 kg, 230° C., ISO1133),

units derived from 1-hexene in an amount of at least 1.80 wt.-%, and

a XS according to ISO16152 of less than 5.0 wt.-%

all weight percentages with respect to the total PP/UHMW-PE composition.

2. 发明公开

US20240317905A1 POLYMERS OF VINYLCYCLOBUTANE AND PROCESSES FOR MAKING SAME 审中-公开
公开(公告)号：US20240317905A1
公开(公告)日：2024-09-26
申请号：US18545505
申请日：2023-12-19
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , THE TRUSTEES OF PRINCETON UNIVERSITY
发明人： Nikola S. Lambic , Brian J. Rohde , Irene C. Cai , Sarah J. Mattler , Tzu-Pin Lin , Gursu Culcu , Jo Ann M. Canich , Jarod M. Younker , Alex E. Carptenter , Paul J. Chirik
IPC分类号： C08F10/14 , C08F4/659 , C08F4/6592
CPC分类号： C08F10/14 , C08F4/65912 , C08F4/65916 , C08F4/65927
摘要： Vinylcyclobutane (VCB) homopolymers, VCB copolymers and processes for making same. The VCB homopolymers and copolymers have a polydispersity (PDI) of less than 3.0 and are made by contacting VCB monomer in the presence of a single-site metallocene, post metallocene, or half metallocene, and an activator, under sufficient reaction conditions to produce a VCB (co)polymer having the narrow PDI of less than 3.0. The resulting poly(vinylcyclobutane) polymers have increased crystallinity and melting point properties (Tm of 165° C. to 246° C.) that are comparable to conventional polyolefins such as polyethylene (typical Tm

3. 发明授权

US12091476B2 On-line adjustment of catalysts by trim and olefin polymerization 有权
公开(公告)号：US12091476B2
公开(公告)日：2024-09-17
申请号：US17279736
申请日：2019-10-30
申请人： ExxonMobil Chemical Patents Inc.
发明人： Kevin A. Stevens , David F Sanders , Matthew W. Holtcamp , Charles J. Harlan , Xuan Ye , Adriana S. Silva , Matthew S. Bedoya , Joshua P. Olson
IPC分类号： C08F210/16 , C08F2/01 , C08F2/34 , C08F4/653 , C08F4/659 , C08F4/6592 , C08L23/08
CPC分类号： C08F2/34 , C08F2/01 , C08F4/65904 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F4/65927 , C08F210/16 , C08L23/0815
摘要： In an embodiment, a method for producing a polyolefin includes contacting a first composition and a second composition in in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the third catalyst, a second activator, and a second diluent, and the third composition comprises a mol ratio of the third catalyst to the second catalyst to the first catalyst of from 10:35:55 to 60:15:25, such as 30:20:30; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

4. 发明公开

US20240294682A1 PROCESS FOR PRODUCING POLYETHYLENE POLYMERS 审中-公开
公开(公告)号：US20240294682A1
公开(公告)日：2024-09-05
申请号：US18573575
申请日：2022-06-23
申请人： BOREALIS AG
发明人： Pascal CASTRO , Vasileios KANELLOPOULOS , Georgy KIPIANI , Marja MUSTONEN , Irfan SAEED
IPC分类号： C08F210/16 , C08F2/00 , C08F2/34 , C08F4/659 , C08F4/6592
CPC分类号： C08F210/16 , C08F2/001 , C08F2/34 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F2420/07
摘要： The disclosure relates to a process for polymerising olefins, the process comprising polymerising ethylene, optionally in the presence of at least one other alpha olefin comonomer, preferably C4-C10 alpha olefin comonomer, preferably in multi stage polymerisation process configuration, in the presence of a single-site polymerisation catalyst to produce a polymer component to produce a polyethylene polymer or a polyethylene copolymer, wherein the single-site polymerisation catalyst comprises (i) a transition metal complex; (ii) a cocatalyst; and optionally (iii) a support; and is characterised by a (Weibull modulus)×(scale parameter) product equal to or higher than 40 MPa and a (Weibull modulus)/(scale parameter) ratio equal to or lower than 0.50 MPa−1 wherein the Weibull modulus and the scale parameter are determined by the Weibull analysis of the compressive strength of the catalyst particles. The disclosure further relates to a single-site polymerisation catalyst, comprising (i) a transition metal complex; (ii) a cocatalyst; and optionally (iii) a support, preferably a silica support; wherein the single-site polymerisation catalyst is characterised by a (Weibull modulus)×(scale parameter) product equal to or higher than 40 MPa and a (Weibull modulus)/(scale parameter) ratio equal to or lower than 0.50 MPa−1 wherein the Weibull modulus and the scale parameter are determined by the Weibull analysis of the compressive strength of the catalyst particles. The disclosure further relates to use of the single-site polymerisation catalyst in the preparation of a polyethylene polymer component, a polyethylene polymer, or a polyethylene copolymer.

5. 发明公开

US20240287225A1 PROCESSES TO PRODUCE POLY ALPHA-OLEFIN TRIMER AND APPARATUS THEREFOR 审中-公开
公开(公告)号：US20240287225A1
公开(公告)日：2024-08-29
申请号：US18647691
申请日：2024-04-26
申请人： ExxonMobil Chemical Patents Inc.
发明人： Patrick C. Chen , Mark H. Li , Jennifer L. Rapp , Pramod J. Nandapurkar , Brian H. Wahn , Babak Lotfizadehdehkordi , Craig J. Emett , Najeeb M. Kuzhiyil , Jian Yang
IPC分类号： C08F210/16 , C07C2/30 , C07C2/32 , C08F4/659 , C08F4/6592
CPC分类号： C08F210/16 , C07C2/30 , C07C2/32 , C08F4/65908 , C08F4/65912 , C08F4/65922
摘要： In at least one embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin to a first catalyst system comprising activator and 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 first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more. The process includes introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition including an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer.

6. 发明公开

US20240279452A1 HIGH TEMPERATURE BLASTING RESISTANCE ISOTACTIC POLYBUTENE ALLOY AND PREPARATION METHOD THEREOF 审中-公开
公开(公告)号：US20240279452A1
公开(公告)日：2024-08-22
申请号：US18648964
申请日：2024-04-29
申请人： QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Aihua HE , Chenguang LIU , Huafeng SHAO
IPC分类号： C08L23/22 , C08F2/01 , C08F2/06 , C08F4/659 , C08F210/08
CPC分类号： C08L23/22 , C08F2/01 , C08F2/06 , C08F4/65912 , C08F210/08 , C08F2400/02 , C08F2800/20 , C08L2205/025 , C08L2205/035 , C08L2207/10
摘要： Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.

7. 发明公开

US20240166854A1 THERMOPLASTIC ELASTOMER COMPOSITION 审中-公开
公开(公告)号：US20240166854A1
公开(公告)日：2024-05-23
申请号：US18280201
申请日：2022-02-24
申请人： MITSUI CHEMICALS, INC.
发明人： Yuto YOSHIDA , Terufumi SUZUKI , Shota ABE
IPC分类号： C08L23/08 , C08F2/04 , C08F4/646 , C08F4/659 , C08F4/6592 , C08F210/16
CPC分类号： C08L23/0815 , C08F2/04 , C08F4/6465 , C08F4/65912 , C08F4/6592 , C08F210/16 , C08L2205/025 , C08L2205/03 , C08L2207/04
摘要： A thermoplastic elastomer composition including 100 parts by mass of a block copolymer containing a polymer block (X) having an aromatic vinyl compound as a main component and a polymer block (Y) having a conjugated diene compound as a main component, or a hydrogenated product thereof (A); 1 to 400 parts by mass of an ethylene/α-olefin copolymer (B) satisfying the following requirements (b-1) to (b-3); and 0 to 200 parts by mass of a polyolefin-based resin (C) satisfying the following requirement (c-1), (b-1) a kinematic viscosity at 100° C. is 5 to 5,000 mm2/s and a kinematic viscosity at 40° C. is 50 to 100,000 mm2/s, (b-2) a weight-average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 1,000 to 30,000, (b-3) a content ratio of ethylene structural units is 15 to 85 mol %, and (c-1) MFR (230° C. and 2.16 kg) is 0.1 to 500 g/10 min.

8. 发明公开

US20240132639A1 OLEFIN-BASED POLYMER, FILM PREPARED THEREFROM, AND PREPARATION METHODS THEREFOR 审中-公开
公开(公告)号：US20240132639A1
公开(公告)日：2024-04-25
申请号：US18265854
申请日：2021-12-02
申请人： HANWHA SOLUTIONS CORPORATION
发明人： Jisong JO , Jeong Hynn PARK , Sun Dong KIM , Munhee LEE , Ui Gap JOUNG
IPC分类号： C08F10/14 , C08F2/34 , C08F4/02 , C08F4/14 , C08F4/659 , C08F4/6592
CPC分类号： C08F10/14 , C08F2/34 , C08F4/025 , C08F4/14 , C08F4/65904 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F2500/12
摘要： An olefin-based polymer, a film prepared from the olefin-based polymer, and preparation methods for manufacturing the olefin-based polymer and the film are disclosed. The olefin-based polymer has excellent processability, and a film prepared from the olefin-based polymer, particularly, a linear low density polyethylene film has excellent mechanical strength, in particular, drop impact strength.

9. 发明公开

US20240084051A1 PROCESS FOR PREPARING CATALYSTS AND CATALYST COMPOSITIONS 审中-公开
公开(公告)号：US20240084051A1
公开(公告)日：2024-03-14
申请号：US18484553
申请日：2023-10-11
申请人： Formosa Plastics Corporation, U.S.A.
发明人： Michael D. Jensen , Kevin Chung , Daoyong Wang , Wei-Chun Shih , Guangxue Xu , Chih-Jian Chen , Charles R. Johnson, II , Mary Lou Cowen
IPC分类号： C08F4/659 , C08F2/01 , C08F2/34 , C08F4/02 , C08F4/6592 , C08F10/06 , C08F110/02
CPC分类号： C08F4/65916 , C08F2/01 , C08F2/34 , C08F4/02 , C08F4/65912 , C08F4/65927 , C08F10/06 , C08F110/02 , C08F2410/01
摘要： Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

10. 发明授权

US11919980B2 Dual catalyst composition 有权
公开(公告)号：US11919980B2
公开(公告)日：2024-03-05
申请号：US16633673
申请日：2018-08-02
申请人： TOTAL RESEARCH & TECHNOLOGY FELUY
发明人： Virginie Cirriez , Alexandre Welle , Aurélien Vantomme
IPC分类号： C08F4/653 , B01J35/00 , C07F17/00 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F210/16
CPC分类号： C08F210/16 , B01J35/0046 , C07F17/00 , C08F4/6428 , C08F4/65904 , C08F4/65912 , C08F4/65916 , C08F4/65927
摘要： The present invention relates to a catalyst composition comprising:

catalyst component A comprising a bridged metallocene compound with two tetrahydroindenyl groups, each group being unsubstituted or substituted;
catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group;
an optional activator; an optional support; and an optional co-catalyst.

The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.

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