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公开(公告)号：US20220289882A1
公开(公告)日：2022-09-15
申请号：US17635500
申请日：2020-08-25
发明人： Sara ZHANG , Maryam SEPEHR , David MORGAN , Jingwen ZHANG
IPC分类号： C08F210/16 , C08F2/06 , C10M143/04 , C10M143/02
摘要： In some embodiments, the present disclosure provides for ethylene-C3 to C20 alpha-olefins random copolymers having an ethylene content of about 45 wt % to about 70 wt % and a Mw(DRI)/Mn(DRI) of from 1.1 to 1.9. In some embodiments, the ethyl-C ene-propylene random copolymer is used as a viscosity modifier in a lubricating composition.
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公开(公告)号：US20230148328A1
公开(公告)日：2023-05-11
申请号：US18052591
申请日：2022-11-04
发明人： Jingwen ZHANG , Jo Ann M. CANICH , Peijun JIANG , John R. HAGADORN , Chase A. ECKERT , Sarah J. MATTLER , Shuhui KANG
IPC分类号： C08L23/14
CPC分类号： C08L23/142 , C08L2207/12 , C08L2205/025
摘要： Provided is syndiotactic polypropylene-based ethylene-propylene copolymers comprising a) 5 to 15% by weight of ethylene and 85 to 95% by weight of propylene; b) 60 to 90% rr triads; c) Mw (LS) of 10 to 250 kg/mol; and d) no substantial melting peak, wherein the heat of fusion of the peak is 5 J/g or less as determined by differential scanning calorimetry at a scan rate of 10° C./min (ASTM D3418-03).
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公开(公告)号：US20240240100A1
公开(公告)日：2024-07-18
申请号：US18557771
申请日：2022-05-11
发明人： Jo Ann M. CANICH , Jingwen ZHANG , Sara Yue ZHANG , David L. MORGAN , John R. HAGADORN , Peijun JIANG , Maryam SEPEHR
IPC分类号： C10M119/02 , C08F210/02 , C08F210/06 , C10M169/02 , C10N20/00 , C10N20/04 , C10N30/00 , C10N30/02
CPC分类号： C10M119/02 , C08F210/02 , C08F210/06 , C10M169/02 , C10M2203/003 , C10M2205/024 , C10N2020/019 , C10N2020/04 , C10N2030/02 , C10N2030/68
摘要： The present disclosure relates to lubricant compositions comprising a branched copolymer and methods for making such compositions. Lubricant compositions of the present disclosure comprise an oil and a copolymer and have a high temperature high shear (HTHS) viscosity of about 5 or less, shear stability index (30 cycles) of from about 2% to about 80%, a ratio of thickening efficiency to shear stability index (30 cycles) of from about 1:2 to about 1:30, a kinematic viscosity at 100° C. of from about 3 cSt to about 30 cSt, and a thickening efficiency of about 1 or more. In another class of embodiments, the present disclosure provides a lubricant composition comprising a first and a second copolymers wherein the first copolymer has an ethylene content higher than that of the second copolymer, and wherein at least one of the two copolymers is a long chain branched ethylene copolymer.
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公开(公告)号：US20240218282A1
公开(公告)日：2024-07-04
申请号：US18557826
申请日：2022-05-11
发明人： Jingwen ZHANG , Peijun JIANG , Jo Ann M. CANICH , John R. HAGADORN , Yen-Hao LIN , Sarah MATTLER , Chase A. ECKERT , Aaron REED , Adrian G. BARRY , Sara Yue ZHANG , Maryam SEPEHR , David L. MORGAN
IPC分类号： C10M143/04 , C08F210/16 , C10M169/04 , C10N20/00 , C10N20/04 , C10N30/00 , C10N30/02
CPC分类号： C10M143/04 , C08F210/16 , C10M169/041 , C08F2420/10 , C08F2800/20 , C10M2203/003 , C10M2205/024 , C10N2020/019 , C10N2020/04 , C10N2020/071 , C10N2030/02 , C10N2030/40 , C10N2030/68
摘要： The present disclosure also relates to lubrication compositions comprising a long branched ethylene copolymer and methods for making compositions. Compositions of the present disclosure can be a composition including an oil and a ethylene copolymer, the copolymer having one or more of an MWD from about 2.0 to about 6.5; an Mw(LS) from about 30,000 to about 300,000 g/mol; a g′vis of from about 0.5 to about 0.97; an ethylene content of about 40 wt % to less than 80 wt %. The compostion has a shear stability index (30 cycles) of from about 1% to about 60%; and a kinematic viscosity at 100° C. of from about 3 cSt to about 25 cSt. A method of making a composition includes blending an oil with a copolymer is also disclosed. Additionally, provided are novel long chain branched ethylene propylene copolymers and methods to produce such copolymers.
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公开(公告)号：US20210040250A1
公开(公告)日：2021-02-11
申请号：US16978327
申请日：2019-03-07
发明人： Jingwen ZHANG , John R. HAGADORN , Rainer KOLB , Jo Ann M. CANICH , Maksim SHIVOKHIN , Peijun JIANG , Britni J. BROBEY
IPC分类号： C08F210/02 , C08F210/06 , C08F2/06 , C08F2/38 , C08F4/64 , C08F4/659 , C08K5/55 , C10M119/02 , C10L1/16
摘要： In some embodiments, ethylene-propylene random copolymers as viscosity modifiers were synthesized with pyridyldiamido catalyst systems and a chain transfer agent. In some embodiments, the present disclosure provides for ethylene-propylene random copolymers having an ethylene content between about 45 wt % and about 55 wt %. In some embodiments, the ethylene-propylene random copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.
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