公开(公告)号：US11555084B2

公开(公告)日：2023-01-17

申请号：US16956231

申请日：2018-12-19

申请人： Dow Global Technologies LLC

发明人： Sarat Munjal ,  Brian W. Kolthammer ,  Mehmet Demirors ,  Michael D. Turner ,  Joshua B. Gaubert ,  Yijian Lin

IPC分类号： C08F210/16 ,  C08F2/01 ,  C08F4/64 ,  C08F2/00 ,  C08F2/06 ,  C08F4/655 ,  C08F4/659

摘要： Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.

公开(公告)号：US10954365B2

公开(公告)日：2021-03-23

申请号：US16385211

申请日：2019-04-16

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

发明人： Brian Molloy ,  Shivendra Goyal ,  Stephen Salomons ,  Fazle Sibtain

IPC分类号： C08J5/00 ,  C08L23/08 ,  C08F2/00 ,  C08F4/6592 ,  B29C41/22 ,  C08F2/06 ,  B32B3/26 ,  B32B27/32 ,  C08J5/18 ,  C08L23/20 ,  B29C41/04 ,  C08F210/16 ,  B32B7/12 ,  B32B27/08 ,  B32B27/34 ,  C08F4/655 ,  C08F4/658 ,  C08F4/659 ,  C08L23/14 ,  B29K23/00 ,  B29K105/00 ,  C08F210/14

摘要： This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Yd) greater than 0; total catalytic metal ≥3.0 ppm; ≥0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.869 to about 0.975 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 20% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

公开(公告)号：US20210079139A1

公开(公告)日：2021-03-18

申请号：US16956231

申请日：2018-12-19

申请人： Dow Global Technologies LLC

发明人： Sarat Munjal ,  Brian W. Kolthammer ,  Mehmet Demirors ,  Michael D. Turner ,  Joshua B. Gaubert ,  Yijian Lin

IPC分类号： C08F210/16 ,  C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/64 ,  C08F4/655 ,  C08F4/659

摘要： Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.

公开(公告)号：US10766980B2

公开(公告)日：2020-09-08

申请号：US16344837

申请日：2017-10-24

申请人： SABIC GLOBAL TECHNOLOGIES B.V.

发明人： Remy Peter Theresia Smeets ,  Nicolaas Hendrika Friederichs ,  Robert Lap Key Chan

IPC分类号： C08F110/02 ,  C08F4/655

摘要： The invention relates to a process for the production of ultra high molecular weight polyethylene in the presence of a catalyst system that comprises (I) the solid reaction product obtained from the reaction of a) a hydrocarbon solution containing 1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and 2) an organic oxygen containing titanium compound and b) an aluminium compound of the formula AlRaX(3-a) where R is a hydrocarbylgroup containing (3-10) carbon atoms, X is an halogenide and 0

公开(公告)号：US10647588B2

公开(公告)日：2020-05-12

申请号：US15776810

申请日：2016-12-05

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

发明人： Peter Zoricak ,  Qinyan Wang ,  Holly Ann Severin ,  Mohamed Elamine Aiffa ,  Kevin Dickinson

IPC分类号： B01J21/10 ,  B01J27/10 ,  C01F5/30 ,  B01J27/138 ,  B01J19/18 ,  B01J21/06 ,  B01J37/02 ,  C08F4/655 ,  C08F4/659 ,  C08F10/02 ,  C08F210/16

摘要： The various embodiments of the invention provide, a magnesium dichloride support and the magnesium titanium polymerization procatalyst made therefrom, and methods for making and using the same.

公开(公告)号：US20190292283A1

公开(公告)日：2019-09-26

申请号：US16306296

申请日：2017-05-29

申请人： BOREALIS AG

发明人： Yi LIU ,  Victor SUMERIN ,  Ravindra TUPE

IPC分类号： C08F210/16 ,  C08F4/655 ,  C08F4/649 ,  C08F4/659 ,  C08L23/08

摘要： A polyethylene composition comprising a base resin is disclosed herein. The base resin includes an ethylene homo- or copolymer fraction (A1), and an ethylene homo- or copolymer fraction (A2). Fraction (A1) has a lower weight average molecular weight than fraction (A2). The base resin has a melt flow rate MFR21 of equal to or less than 8.0 g/10 min and a density of 930 to 950 kg/m3. The polyethylene composition has a melt flow rate MFR5 of 0.01 to 0.3 g/10 min, a flow rate ratio FRR21/5 of equal to or more than 20 and a ratio of the weight average molecular weight and the number average molecular weight (Mw/Mn) of equal to or less than 30. Also the polyethylene composition has a tensile modulus of less than 1000 MPa. Also a process for the production of a polyethylene composition comprising polyethylene base resin is disclosed herein.

公开(公告)号：US20180327520A1

公开(公告)日：2018-11-15

申请号：US15590478

申请日：2017-05-09

申请人： Formosa Plastics Corporation, USA

发明人： Gapgoung Kong ,  Lei Zhang ,  Chih-Jian Chen ,  Yiqun Fang ,  Demin Xu ,  Guangxue Xu

IPC分类号： C08F4/44 ,  C08F4/42 ,  C08F4/654 ,  C08F4/655 ,  C10M133/16

摘要： Disclosed are a catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, internal donors, in combination with a silane and oxalic acid diamides of the following formula: An olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound is also disclosed. Employment of both oxalic acid diamides and silane component in the presence of internal electron donors as an elements of solid Ziegler-Natta type catalyst composition enhances stereo-specificity while maintaining excellent catalyst activity and hydrogen response, in which the modified catalyst composition produces polypropylene with good productivity and higher stereo-specificity than catalyst composition without such modification.

公开(公告)号：US10030082B2

公开(公告)日：2018-07-24

申请号：US15557014

申请日：2016-03-07

申请人： BASELL POLIOLEFINE ITALIA S.R.L.

发明人： Alessandro Mignogna ,  Giampiero Morini

IPC分类号： C08F4/649 ,  C08F4/651 ,  C08F4/654 ,  C08F4/655 ,  C08F110/06

摘要： A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti, halogen and an electron donor of formula (I) or (II): When activated with an aluminum alkyl and optionally an external electron donor, the solid catalyst component can give high activity and stereospecificity in the polymerization of olefins.

公开(公告)号：US20170267822A1

公开(公告)日：2017-09-21

申请号：US15609051

申请日：2017-05-31

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

发明人： Celine Bellehumeur ,  Brian Molloy ,  Hamidreza Khakdaman ,  XiaoChuan Wang ,  Tieqi Li ,  Christopher Dobbin ,  Fazle Sibtain ,  Kenneth Taylor

IPC分类号： C08J5/18 ,  B29C41/04 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B3/26 ,  B32B7/12 ,  C08F2/00 ,  C08F2/06 ,  C08F210/16 ,  C08F4/655 ,  C08F4/658 ,  C08F4/659 ,  C08F4/6592 ,  C08J5/00 ,  C08L23/08 ,  C08L23/20 ,  B29K105/00 ,  B29K23/00 ,  C08F210/14

CPC分类号： C08L23/0815 ,  B29C41/04 ,  B29C41/22 ,  B29K2023/08 ,  B29K2105/0058 ,  B29K2105/0085 ,  B29K2105/0094 ,  B29K2905/02 ,  B29K2995/0063 ,  B29K2995/0088 ,  B32B3/266 ,  B32B7/12 ,  B32B27/08 ,  B32B27/327 ,  B32B27/34 ,  B32B2307/7265 ,  B32B2439/40 ,  C08F2/001 ,  C08F2/06 ,  C08F4/6555 ,  C08F4/6583 ,  C08F4/6585 ,  C08F4/65904 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/6592 ,  C08F210/14 ,  C08F210/16 ,  C08F2420/01 ,  C08F2420/04 ,  C08F2500/03 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/26 ,  C08J5/00 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2323/20 ,  C08J2323/24 ,  C08J2423/08 ,  C08J2423/20 ,  C08J2423/24 ,  C08L23/08 ,  C08L23/14 ,  C08L23/20 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/06 ,  C08L2314/02 ,  C08L2314/06

摘要： This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product and an ethylene polymer, where the ethylene interpolymer product has a Dilution Index (Yd) greater than 0 and improved Environmental Stress Crack Resistance (ESCR). The ethylene interpolymer product has a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

公开(公告)号：US20170216825A1

公开(公告)日：2017-08-03

申请号：US15500647

申请日：2015-07-30

申请人： VERSALIS S.P.A.

发明人： Francesco MASI ,  Anna SOMMAZZI ,  Mario POLESELLO

IPC分类号： B01J27/138 ,  C08F210/16 ,  C08F4/655 ,  B01J27/135

CPC分类号： B01J27/138 ,  B01J27/135 ,  C08F4/655 ,  C08F210/16 ,  C08F2410/03 ,  C08F4/6557 ,  C08F210/14 ,  C08F2500/12 ,  C08F4/6555

摘要： An improved solid Ziegler-Natta type catalyst for the (co)polymerisation of ethylene and α-olefins, particularly in high-temperature processes, such as for example adiabatic solution processes and high-pressure adiabatic processes with elevated productivity, is provided. Said catalyst is obtained by means of an original process comprising dissolving in hydrocarbons, compounds of titanium, magnesium and optionally a metal selected from hafnium and zirconium, and reprecipitating them in two steps in succession, the first of which is chlorination and the second reduction.