公开(公告)号：US20200339712A1

公开(公告)日：2020-10-29

申请号：US16958891

申请日：2019-02-05

申请人： ExxonMobil Chemical Patents Inc.

发明人： Alex E. Carpenter ,  Danielle Gold Singleton

IPC分类号： C08F4/659 ,  C08F4/6592 ,  C08F210/16

摘要： Catalysts, catalysts systems and methods of polymerizing olefins are provided. The catalyst system may contain two catalysts. Polyolefin polymers are also provided.

公开(公告)号：US10807998B2

公开(公告)日：2020-10-20

申请号：US15852410

申请日：2017-12-22

申请人： ExxonMobil Chemical Patents Inc.

发明人： Jian Yang ,  Xiongdong Lian

IPC分类号： C08F10/06 ,  C07F17/00 ,  C07F7/00 ,  B01J31/22 ,  C08F110/06 ,  C08F210/16 ,  C08F4/76 ,  C08F4/659

摘要： The present disclosure relates to bridged metallocene catalysts that include at least one indenyl ligand substituted at the 2-position with a C3-C10 branched alkyl, such as isopropyl. Catalyst systems including the catalysts, polymerization processes using the catalysts, and polymers made using the catalysts are also described.

公开(公告)号：US10800908B2

公开(公告)日：2020-10-13

申请号：US16081286

申请日：2017-03-03

申请人： Dow Global Technologies LLC

发明人： Cornelis F. J. Den Doelder ,  Jesus Nieto ,  Frederik Gemoets

IPC分类号： C08J5/22 ,  C08L23/08 ,  C08J5/18 ,  B32B27/20 ,  B32B7/12 ,  B32B27/06 ,  B32B7/04 ,  B32B27/18 ,  B32B27/32 ,  B32B27/08 ,  C08F4/659

摘要： The present disclosure provides linear low density polyethylene compositions, films and method of making the same. The linear low density polyethylene compositions, according to the present disclosure, exhibit each of the following properties: (1) a CEF fraction from 70 to 90 C of equal to or greater than 80% of the total CEF fractions; (2) a melt index, I2, measured according to ASTM D 1238 (2.16 kg @190 C), in the range of from 0.8 to 1.2 g/10 minutes; and (3) a melt flow ratio, I10/I2, in the range of from 7.0 to 8.0.

公开(公告)号：US10800863B2

公开(公告)日：2020-10-13

申请号：US15744429

申请日：2016-10-20

申请人： LG Chem, Ltd.

发明人： Dong Eun Kim ,  A Rim Kim ,  Jin Sam Gong ,  Choong Hoon Lee ,  Seung Hwan Jung

IPC分类号： C08F4/76 ,  C08F210/16 ,  C07F9/535 ,  C07F17/00 ,  B01J31/02 ,  C01G23/00 ,  C08F4/659 ,  C08F2/06 ,  C08L23/06 ,  C08L23/12 ,  C08L23/18 ,  C08L47/00

摘要： The present invention relates to a transition metal complex that exhibits high activity in the polymerization reaction of olefin monomers and improved copolymerization activity, thus enabling the preparation of a low density, high molecular weight polyolefin, a catalyst composition including the same, and a method for preparing a polyolefin using the composition.

公开(公告)号：US10759879B2

公开(公告)日：2020-09-01

申请号：US16140129

申请日：2018-09-24

申请人： NICHIA CORPORATION

发明人： Masakazu Sakaguchi

IPC分类号： C07F5/00 ,  C07F5/06 ,  C08F4/642 ,  C08F4/6592 ,  C08F212/08 ,  C08F210/02 ,  C08F4/659 ,  C08F10/02

摘要： An alkyl metalloxane compound and a method of producing the same are provided. The alkyl metalloxane compound includes one or more alkyl aluminoxane structural units, and one or more alkyl galloxane structural units per molecule. The method comprises reacting trialkyl gallium, trialkyl aluminum, and water.

公开(公告)号：US20200255563A1

公开(公告)日：2020-08-13

申请号：US16862725

申请日：2020-04-30

申请人： NOVA Chemicals (International) S.A.

发明人： Patrick Lam ,  Victoria Ker ,  Mark Kelly

IPC分类号： C08F210/16 ,  C08F4/659 ,  C08F4/649 ,  C08F4/642 ,  C08F2/34 ,  C08J5/18

摘要： The disclosure provides an ethylene copolymer having a density of from 0.912 g/cm3 to 0.925 g/cm3, a melt flow ratio (I21/I2) of from 20 to 30, and a normal comonomer distribution profile in a GPC-FTIR analysis, wherein the normal comonomer distribution profile has a slope of from −3.5 to −7.5, where the slope is defined as the number of short chain branches per 1000 carbons at a molecular weight of 300,000 minus the number of short chain branches per 1000 carbons at a molecular weight of 30,000. The ethylene copolymers have improved bulk density and when made into film, provide good physical properties.

公开(公告)号：US10730966B2

公开(公告)日：2020-08-04

申请号：US16089478

申请日：2017-03-13

申请人： Univation Technologies, LLC

发明人： Mahsa Heydari ,  Roger L. Kuhlman ,  C. Jeff Harlan

IPC分类号： C08F4/659 ,  B01J31/38 ,  C08F210/16 ,  C07F7/00 ,  C07F7/28

摘要： Embodiments of the present disclosure are directed towards metal complexes that can be utilized to form polymers. As an example, the present disclosure provides a metal complex of Formula (I) wherein M is Zr, Hf, or Ti; each Het is independently a heterocyclic; each L is independently a bridging group; each X is independently Cl, Br, I, or alkyl; each R1 is independently selected from the group including hydrogen, alkyls, alkenyls, alkynyls, cycloalkyls, aryls, acyls, aroyls, alkoxys, aryloxys, alkylthiols, dialkylamines, alkylamidos, alkoxycarbonyls, aryloxycarbonyls, carbomoyls, alkyl- and dialkyl-carbamoyls, acyloxys, acylaminos, aroylaminos, aromatic rings, fused aromatic rings, and combinations thereof; and each n is independently an integer having a value of one to five.

公开(公告)号：US10717793B2

公开(公告)日：2020-07-21

申请号：US16313640

申请日：2017-11-07

申请人： LG Chem, Ltd.

发明人： Sol Cho ,  Ki Soo Lee ,  Heon Yong Kwon ,  Sung Hyun Park ,  Myung Han Lee ,  Oh Joo Kwon ,  Seung Mi Lee ,  Eun Ji Shin ,  Hyun Jee Kwon ,  Sung Ho Park ,  Seul Ki Im ,  Jin Young Lee

IPC分类号： C08L23/08 ,  C08F210/16 ,  C08F4/653 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/659 ,  B29C48/10 ,  B29C48/00 ,  B29K23/00 ,  B29K105/00

摘要： The present invention provides an olefin polymer in which LCB (long chain branch) is introduced into mLLDPE (metallocene linear low-density polyethylene) to control the storage modulus, whereby the olefin polymer has excellent bubble stability and processing load characteristics and exhibits excellent processability during preparation of a film, and further has excellent mechanical properties and transparency.

公开(公告)号：US10676589B2

公开(公告)日：2020-06-09

申请号：US16357699

申请日：2019-03-19

申请人： Univation Technologies, LLC

发明人： Yuanqiao Rao ,  Ping Cai ,  Kevin J. Cann ,  F. David Hussein ,  Wesley R. Mariott ,  Phuong A. Cao

IPC分类号： C08F4/02 ,  C08K3/36 ,  B01J21/06 ,  B01J21/08 ,  B01J21/18 ,  B01J35/00 ,  B01J37/02 ,  C08F10/00 ,  C08F4/659 ,  C08F110/02 ,  C08F4/6592

摘要： Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.

公开(公告)号：US20200165422A1

公开(公告)日：2020-05-28

申请号：US16751328

申请日：2020-01-24

申请人： NOVA Chemicals (International) S.A.

发明人： Fazle Sibtain ,  Christopher John Brooke Dobbin ,  Donald Gary Hartlen ,  Kenneth Edward Taylor ,  Hamidreza Khakdaman

IPC分类号： C08L23/08 ,  C08L23/14 ,  C08F4/659 ,  C08F4/658 ,  C08F4/655 ,  B32B27/34 ,  B32B27/08 ,  B32B7/12 ,  C08F210/16 ,  B29C41/04 ,  C08L23/20 ,  C08J5/18 ,  B32B27/32 ,  B32B3/26 ,  C08F4/6592 ,  C08F2/00 ,  C08J5/00

摘要： This disclosure relates to a continuous solution polymerization process wherein production rate is increased. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst formulation are injected into a first reactor forming a first ethylene interpolymer. Process solvent, ethylene, optional comonomers, optional hydrogen and a heterogeneous catalyst formulation are injected into a second reactor forming a second ethylene interpolymer. The first and second reactors may be configured in series or parallel modes of operation. Optionally, a third ethylene interpolymer is formed in an optional third reactor, wherein an optional heterogeneous catalyst formulation may be employed. In a solution phase, the first, second and optional third ethylene interpolymers are combined, the catalyst is deactivated, the solution is passivated and following a phase separation process an ethylene interpolymer product is recovered.