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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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公开(公告)号:US20130029125A1
公开(公告)日:2013-01-31
申请号:US13628477
申请日:2012-09-27
发明人: Mun F. TSE , Peijun JIANG , Jianya CHENG, JR.
CPC分类号: C08L23/06 , C08F210/16 , C08J5/18 , C08J2323/06 , C08J2423/08 , C08L23/04 , C08L23/08 , C08L23/0807 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2314/06 , C08L2666/02 , C08L2666/06 , C08F210/14 , C08F2500/11 , C08F2500/12 , C08F2500/17 , C08F2500/20 , C08F2500/26
摘要: This invention relates to a film comprising a blend composition comprising: 1) a linear ethylene containing polymer, such as a LLDPE, a HDPE or the like; and at least 1 weight percent of an in-reactor polymer blend comprising: (a) a first ethylene containing polymer having a density of greater than 0.90 g/cm3 and a Mw of more than 20,000 g/mol; and (b) a second ethylene containing polymer having a density of less than 0.90 g/cm3, wherein the polymer blend has a Tm of at least 90° C. (DSC second melt), a density of less than 0.92 g/cm3, and the densities of the first and second polymers differ by at least 1%.
摘要翻译: 本发明涉及包含共混组合物的膜,其包含:1)含线性乙烯的聚合物,例如LLDPE,HDPE等; 和至少1重量%的反应器内聚合物共混物,其包含:(a)密度大于0.90g / cm 3和Mw大于20,000g / mol的第一含乙烯聚合物; 和(b)密度小于0.90g / cm 3的第二含乙烯聚合物,其中聚合物共混物具有至少90℃的Tm(DSC第二熔体),小于0.92g / cm 3的密度, 并且第一和第二聚合物的密度相差至少1%。
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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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