JPWO2021041406A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2021041406A5 JPWO2021041406A5 JP2022513639A JP2022513639A JPWO2021041406A5 JP WO2021041406 A5 JPWO2021041406 A5 JP WO2021041406A5 JP 2022513639 A JP2022513639 A JP 2022513639A JP 2022513639 A JP2022513639 A JP 2022513639A JP WO2021041406 A5 JPWO2021041406 A5 JP WO2021041406A5
- Authority
- JP
- Japan
- Prior art keywords
- weight
- copolymer
- dri
- lubricating composition
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Description
粘度調整剤として用いられるポリマーの増粘効率特性をさらに改善することが依然として求められている。
関心のある参考文献としては、以下のものも挙げられる。1)Vaughan, A; Davis, D.S.; Hagadorn, J.R. in Comprehensive Polymer Science, Vol. 3, Chapter 20, “Industrial catalysts for alkene polymerization”、2)Gibson, V.C.; Spitzmesser, S.K. Chem. Rev. 2003, 103, 283、3)Britovsek, G.J.P.; Gibson, V.C.; Wass, D.F. Angew. Chem. Int. Ed. 1999, 38, 428、4)国際公開第2006/036748号、5)McGuire, R. et al. Coordination Chemistry Reviews, Vol 254, No. 21-22, pages 2574-2583 (2010)、6)米国特許第4,540,753号明細書、7)米国特許第4,804,794号明細書、8)P. Chem. Rev. 2013, 113, 3836-38-57、9)J. Am. Chem. Soc. 2005, 127, 9913-9923、10)Lub. Sci. 1989, 1, 265-280、11)Lubricant Additives, Chemistry and Applications, pages 293-327, CRC Press, 2003、12)Chemistry and Technology of Lubricants, 3rd edition, pages 153-187, Springer, 2010、13)米国特許出願公開第2013/0131294号明細書、14)米国特許出願公開第2002/0142912号明細書、15)米国特許第6,900,321号明細書、16)米国特許第6,103,657号明細書、17)国際公開第2005/095469号、18)米国特許出願公開第2004/0220050号明細書、19)国際公開第2007/067965号、20)Froese, R.D.J. et al., J. Am. Chem. Soc. 2007, 129, pp. 7831-7840、21)国際公開第2010/037059号、22)米国特許出願公開第2010/0227990号明細書、23)国際公開第02/38628号、24)Guerin, F.; McConville, D. H.; Vittal, J. J. Organometallics 1996, 15, p. 5586、25)米国特許第7,973,116号明細書、26)米国特許第8,394,902号明細書、27)米国特許出願公開第2011/0224391号明細書、28)米国特許出願公開第2011/0301310号明細書、及び29)米国特許第9,321,858号明細書。
There remains a need to further improve the thickening efficiency properties of polymers used as viscosity modifiers.
References of interest also include: 1) Vaughan, A; Davis, DS; Hagadorn, JR in Comprehensive Polymer Science, Vol. 3, Chapter 20, "Industrial catalysts for alkene polymerization", 2) Gibson, VC; Spitzmesser, SK Chem. 283, 3) Britovsek, GJP; Gibson, VC; Wass, DF Angew. Chem. Int. Ed. 1999, 38, 428; Reviews, Vol 254, No. 21-22, pages 2574-2583 (2010), 6) U.S. Pat. No. 4,540,753, 7) U.S. Pat. No. 4,804,794, 8) P Chem. Rev. 2013, 113, 3836-38-57, 9) J. Am. Chem. Soc. 2005, 127, 9913-9923, 10) Lub. Sci. 1989, 1, 265-280, 11) Lubricant Additives, Chemistry and Applications, pages 293-327, CRC Press, 2003, 12) Chemistry and Technology of Lubricants, 3rd edition, pages 153-187, Springer, 2010, 13) U.S. Patent Application Publication No. 2013/0131294; 14) US2002/0142912, 15) US6,900,321, 16) US6,103,657, 17) WO2005/095469 18) U.S. Patent Application Publication No. 2004/0220050, 19) International Publication No. 2007/067965, 20) Froese, RDJ et al., J. Am. Chem. Soc. 2007, 129, pp. 7831 -7840, 21) WO2010/037059, 22) U.S. Patent Application Publication No. 2010/0227990, 23) WO02 / 38628, 24) Guerin, F.; McConville, DH; Vittal, JJ Organometallics 1996, 15, p. 5586, 25) US Patent No. 7,973,116, 26) US Patent No. 8,394,902, 27) US Patent Application Publication No. 2011/0224391. 28) U.S. Patent Application Publication No. 2011/0301310, and 29) U.S. Patent No. 9,321,858.
記載したアルキル、アルケニル、アルコキシド、又はアリール基の異性体が存在する場合(例えば、n-ブチル、イソブチル、sec-ブチル、及びtert-ブチル)、その基の1つのメンバー(例えば、n-ブチル)への言及は、ファミリー中の残りの異性体(例えば、イソブチル、sec-ブチル、及びtert-ブチル)も明示的に開示するものとする。同様に、特定の異性体を指定しないアルキル、アルケニル、アルコキシド、又はアリール基への言及(例えば、ブチル)も、すべての異性体(例えば、n-ブチル、イソブチル、sec-ブチル、及びtert-ブチル)を明示的に開示する。 Where isomers of the described alkyl, alkenyl, alkoxide or aryl groups exist (eg n-butyl, isobutyl, sec- butyl and tert-butyl), one member of that group (eg n-butyl) A reference to is also intended to explicitly disclose the remaining isomers in the family (eg, iso-butyl, sec-butyl, and tert-butyl). Similarly, a reference to an alkyl, alkenyl, alkoxide, or aryl group that does not specify a particular isomer (eg, butyl) refers to all isomers (eg, n-butyl, isobutyl, sec-butyl, and tert-butyl). ) is explicitly disclosed.
Zd +が活性化カチオン(L-H)d +である場合、それは、遷移金属触媒前駆体にプロトンを供与して遷移金属カチオンとすることができるブレンステッド酸であることが好ましく、アンモニウム、オキソニウム、ホスホニウム、シリリウム、及びこれらの混合物が挙げられ、好ましくはメチルアミン、アニリン、ジメチルアミン、ジエチルアミン、N-メチルアニリン、ジフェニルアミン、トリメチルアミン、トリエチルアミン、N,N-ジメチルアニリン、メチルジフェニルアミン、ピリジン、p-ブロモ-N,N-ジメチルアニリン、p-ニトロ-N,N-ジメチルアニリンのアンモニウム、トリエチルホスフィン、トリフェニルホスフィン、及びジフェニルホスフィンからのホスホニウム、ジメチルエーテル、ジエチルエーテル、テトラヒドロフラン、及びジオキサンなどのエーテルからのオキソニウム、ジエチルチオエーテル、テトラヒドロチオフェンなどのチオエーテルからのスルホニウム、並びにこれらの混合物である。 When Z d + is an activating cation (LH) d + , it is preferably a Bronsted acid capable of donating protons to transition metal catalyst precursors to transition metal cations, ammonium, oxonium, phosphonium, silylium, and mixtures thereof, preferably methylamine, aniline, dimethylamine, diethylamine, N-methylaniline, diphenylamine, trimethylamine, triethylamine, N,N-dimethylaniline, methyldiphenylamine, pyridine, p - bromo-N,N-dimethylaniline, ammonium of p-nitro-N,N-dimethylaniline, phosphonium from triethylphosphine, triphenylphosphine and diphenylphosphine, ethers such as dimethyl ether , diethyl ether, tetrahydrofuran, and dioxane sulfonium from thioethers such as diethylthioether, tetrahydrothiophene, and mixtures thereof.
好ましい活性化剤としては、N,N-ジメチルアニリニウムテトラキス(ペルフルオロナフチル)ボレート、N,N-ジメチルアニリニウムテトラキス(ペルフルオロフェニル)ボレート、トリフェニルカルベニウムテトラキス(ペルフルオロフェニル)ボレート、[Ph3C+][B(C6F5) 4 -]、[Me3NH+][B(C6F5) 4 -]、1-(4-(トリス(ペンタフルオロフェニル)ボレート)-2,3,5,6-テトラフルオロフェニル)ピロリジニウム、4-(トリス(ペンタフルオロフェニル)ボレート)-2,3,5,6-テトラフルオロピリジンが挙げられる。 Preferred activators include N,N-dimethylaniliniumtetrakis(perfluoronaphthyl)borate, N,N-dimethylaniliniumtetrakis(perfluorophenyl)borate, triphenylcarbeniumtetrakis(perfluorophenyl)borate, [Ph 3 C + ][B(C 6 F 5 ) 4 − ], [Me 3 NH + ][B(C 6 F 5 ) 4 − ], 1-(4-(tris(pentafluorophenyl)borate)-2,3 ,5,6-tetrafluorophenyl)pyrrolidinium and 4-(tris(pentafluorophenyl)borate)-2,3,5,6-tetrafluoropyridine.
好ましい実施形態では、活性化剤としては、トリアリールカルボニウム(トリフェニルカルベニウムテトラフェニルボレート、トリフェニルカルベニウムテトラキス(ペンタフルオロフェニル)ボレート、トリフェニルカルベニウムテトラキス-(2,3,4,6-テトラフルオロフェニル)ボレートなど)が挙げられる。 In a preferred embodiment, the activating agents include triarylcarbonium (triphenylcarbenium tetraphenylborate, triphenylcarbeniumtetrakis(pentafluorophenyl)borate, triphenylcarbeniumtetrakis-(2,3,4,6 -tetrafluorophenyl)borate, etc. ) .
所望に応じて用いられる捕捉剤又は共活性化剤
これらの活性化剤化合物に加えて、1又は複数の捕捉剤又は共活性化剤が、触媒系に用いられてもよい。捕捉剤又は共活性化剤として用いられ得るアルミニウムアルキル又は有機アルミニウム化合物としては、例えば、トリメチルアルミニウム、トリエチルアルミニウム、トリイソブチルアルミニウム、トリ-n-ヘキシルアルミニウム、トリ-n-オクチルアルミニウム、及びジエチル亜鉛が挙げられる。金属又はメタロイド中心に結合した嵩高い又はC6~C20直鎖状ヒドロカルビル置換基を有する捕捉剤は、通常、活性触媒との有害な相互作用を最小限に抑える。例としては、トリエチルアルミニウムが挙げられるが、より好ましくは、トリイソブチルアルミニウム、トリイソプレニルアルミニウムなどの嵩高い化合物、及びトリ-n-ヘキシルアルミニウム、トリ-n-オクチルアルミニウム、又はトリ-n-ドデシルアルミニウムなどの長鎖直鎖状アルキル置換アルミニウム化合物が挙げられる。アルモキサンが活性化剤として用いられる場合、活性化に必要とされるよりも過剰な何れかの量であれば、不純物が捕捉され、追加の捕捉剤が不要となり得る。メチルアルモキサン又はビス(ジイソブチルアルミニウム)オキシド(DIBALO)などのアルモキサンが、[Me2HNPh]+[B(pfp)4] - 又はB(pfp)3(ペルフルオロフェニル=pfp=C6F5)などの他の活性化剤と共に捕捉量で添加されてもよい。一実施形態では、アルミニウム捕捉剤の触媒に対するモル比は、5:1~30:1である。
Optional Scavengers or Co-Activators In addition to these activator compounds, one or more scavengers or co-activators may be used in the catalyst system. Aluminum alkyl or organoaluminum compounds that can be used as scavengers or co-activators include, for example, trimethylaluminum, triethylaluminum, triisobutylaluminum, tri-n-hexylaluminum, tri-n-octylaluminum, and diethylzinc. mentioned. Scavengers with bulky or C 6 -C 20 linear hydrocarbyl substituents attached to the metal or metalloid center usually minimize detrimental interactions with the active catalyst. Examples include triethylaluminum, but more preferably bulky compounds such as triisobutylaluminum, triisoprenylaluminum, and tri-n-hexylaluminum, tri-n-octylaluminum, or tri-n-dodecyl Long chain linear alkyl-substituted aluminum compounds such as aluminum are included. If an alumoxane is used as an activator, any amount in excess of that required for activation will scavenge the impurities, and no additional scavenger may be needed. Alumoxanes, such as methylalumoxane or bis(diisobutylaluminum)oxide (DIBALO), such as [Me 2 HNPh] + [B(pfp) 4 ] − or B(pfp) 3 (perfluorophenyl=pfp=C 6 F 5 ), etc. may be added in scavenger amounts with other activators. In one embodiment, the molar ratio of aluminum scavenger to catalyst is from 5:1 to 30:1.
いくつかの実施形態では、重合のためのモノマー及びコモノマーのフィード濃度は、フィード流の総体積に基づいて、約60体積%以下、好ましくは約40体積%以下、又はより好ましくは約20体積%以下である。好ましくは、重合は、塊状プロセスで行われる。 In some embodiments, the feed concentration of monomer and comonomer for polymerization is about 60 % by volume or less , preferably about 40% by volume or less, or more preferably about 20% by volume, based on the total volume of the feed stream. % or less. Preferably the polymerization is carried out in a bulk process.
有用な連鎖移動剤は、典型的には、式AlR3及びZnR2(但し、各Rは、独立して、C1~C8脂肪族ラジカル、好ましくはメチル、エチル、プロピル、ブチル、ペンチル、ヘキシル、オクチル、又はこれらの異性体である。)で表されるトリアルキルアルミニウム及びジアルキル亜鉛、又はこれらの組み合わせであり、例えば、ジエチル亜鉛、トリメチルアルミニウム、トリイソブチルアルミニウム、トリオクチルアルミニウム、又はこれらの組み合わせである。 Useful chain transfer agents typically have the formulas AlR 3 and ZnR 2 , where each R is independently a C 1 -C 8 aliphatic radical, preferably methyl, ethyl, propyl, butyl, pentyl, hexyl , octyl, or isomers thereof), or a combination thereof, such as diethylzinc, trimethylaluminum, triisobutylaluminum, trioctylaluminum, or these It's a combination.
Claims (17)
1.1~1.9のMw(DRI)/Mn(DRI)、
50,000g/mol~250,000g/molのMw(DRI)、及び
45重量%~70重量%のエチレン含有率
を有する、コポリマー。 A copolymer of ethylene and a C3 - C20 α-olefin comprising:
Mw(DRI)/Mn(DRI) from 1.1 to 1.9,
Mw (DRI) from 50,000 g/mol to 250,000 g/mol, and
A copolymer having an ethylene content of 45 % to 70 % by weight.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962892279P | 2019-08-27 | 2019-08-27 | |
US62/892,279 | 2019-08-27 | ||
US201962896253P | 2019-09-05 | 2019-09-05 | |
US62/896,253 | 2019-09-05 | ||
PCT/US2020/047790 WO2021041406A1 (en) | 2019-08-27 | 2020-08-25 | Ethylene copolymers and use as viscosity modifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022546499A JP2022546499A (en) | 2022-11-04 |
JPWO2021041406A5 true JPWO2021041406A5 (en) | 2023-07-14 |
Family
ID=72428344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022513639A Pending JP2022546499A (en) | 2019-08-27 | 2020-08-25 | Use as ethylene copolymers and viscosity modifiers |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220289882A1 (en) |
EP (1) | EP4021948A1 (en) |
JP (1) | JP2022546499A (en) |
CN (1) | CN114787202A (en) |
WO (1) | WO2021041406A1 (en) |
Family Cites Families (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779928A (en) | 1969-04-01 | 1973-12-18 | Texaco Inc | Automatic transmission fluid |
US3778375A (en) | 1972-04-17 | 1973-12-11 | Mobil Oil Corp | Phosphorus-and nitrogen-containing lubricant additives |
US3932290A (en) | 1973-10-04 | 1976-01-13 | The Lubrizol Corporation | Phosphorus-containing friction modifiers for functional fluids |
US3852205A (en) | 1973-11-05 | 1974-12-03 | Texaco Inc | Transmission fluid compositions and method |
US3879306A (en) | 1973-11-05 | 1975-04-22 | Texaco Inc | Automatic transmission fluid |
US3933659A (en) | 1974-07-11 | 1976-01-20 | Chevron Research Company | Extended life functional fluid |
US4028258A (en) | 1975-12-03 | 1977-06-07 | Texaco Inc. | Alkylene oxide adducts of phosphosulfurized N-(hydroxyalkyl) alkenylsuccinimides |
US4105571A (en) | 1977-08-22 | 1978-08-08 | Exxon Research & Engineering Co. | Lubricant composition |
US4176074A (en) | 1978-09-18 | 1979-11-27 | Exxon Research & Engineering Co. | Molybdenum complexes of ashless oxazoline dispersants as friction reducing antiwear additives for lubricating oils |
US4344853A (en) | 1980-10-06 | 1982-08-17 | Exxon Research & Engineering Co. | Functional fluid containing metal salts of esters of hydrocarbyl succinic acid or anhydride with thio-bis-alkanols as antioxidants |
US4464493A (en) | 1982-09-13 | 1984-08-07 | Copolymer Rubber & Chemical Corp. | Process for dissolving EPM and EPDM polymers in oil |
US4540753A (en) | 1983-06-15 | 1985-09-10 | Exxon Research & Engineering Co. | Narrow MWD alpha-olefin copolymers |
US5153157A (en) | 1987-01-30 | 1992-10-06 | Exxon Chemical Patents Inc. | Catalyst system of enhanced productivity |
US5241025A (en) | 1987-01-30 | 1993-08-31 | Exxon Chemical Patents Inc. | Catalyst system of enhanced productivity |
US4804794A (en) | 1987-07-13 | 1989-02-14 | Exxon Chemical Patents Inc. | Viscosity modifier polymers |
US5041584A (en) | 1988-12-02 | 1991-08-20 | Texas Alkyls, Inc. | Modified methylaluminoxane |
US5068047A (en) | 1989-10-12 | 1991-11-26 | Exxon Chemical Patents, Inc. | Visosity index improver |
DE69033368T3 (en) | 1990-01-02 | 2008-07-03 | Exxon Chemical Patents, Inc. | Ionized metallocene catalysts supported on olefin polymerization |
EP0616618B1 (en) * | 1991-12-13 | 1997-07-02 | Exxon Chemical Patents Inc. | Ethylene/longer alpha-olefin copolymers |
WO1993014132A1 (en) | 1992-01-06 | 1993-07-22 | The Dow Chemical Company | Improved catalyst composition |
BE1005957A5 (en) | 1992-06-05 | 1994-04-05 | Solvay | Preparation method of catalyst system, process (co) polymerization of olefins and (co) polymer at least one olefine. |
EP1110974B1 (en) | 1992-08-05 | 2007-11-28 | ExxonMobil Chemical Patents Inc. | Method for preparing a supported activator component |
CA2146012A1 (en) | 1992-10-02 | 1994-04-14 | Brian W. S. Kolthammer | Supported homogenous catalyst complexes for olefin polymerization |
US5391617A (en) | 1993-08-02 | 1995-02-21 | Dsm Copolymer, Inc. | Solid sheared polymer blends and process for their preparation |
CA2127918A1 (en) | 1993-08-02 | 1995-02-03 | Maria Magdalena Kapuscinski | Dimensionally stable solid polymer blend and a lubricating oil composition containing same |
GB9319340D0 (en) | 1993-09-17 | 1993-11-03 | Exxon Chemical Patents Inc | Olefin polymersisation process |
ES2140557T3 (en) | 1993-11-19 | 2000-03-01 | Exxon Chemical Patents Inc | CATALYTIC POLYMERIZATION SYSTEMS, THEIR PRODUCTION AND USE. |
US5447895A (en) | 1994-03-10 | 1995-09-05 | Northwestern University | Sterically shielded diboron-containing metallocene olefin polymerization catalysts |
EP0728773B1 (en) | 1995-02-21 | 1998-11-04 | Mitsubishi Chemical Corporation | Catalysts for olefin polymerization and a process for preparing olefin polymers therewith |
WO1998043983A1 (en) | 1997-04-03 | 1998-10-08 | Colorado State University Research Foundation | Polyhalogenated monoheteroborane anion compositions |
US6103657A (en) | 1997-07-02 | 2000-08-15 | Union Carbide Chemicals & Plastics Technology Corporation | Catalyst for the production of olefin polymers |
US6147173A (en) | 1998-11-13 | 2000-11-14 | Univation Technologies, Llc | Nitrogen-containing group 13 anionic complexes for olefin polymerization |
US7402235B2 (en) | 2000-07-31 | 2008-07-22 | The Lubrizol Corporation | Viscosity improver compositions providing improved low temperature characteristics to lubricating oils |
AU2002225662A1 (en) | 2000-11-07 | 2002-05-21 | Symyx Technologies, Inc. | Substituted pyridyl amine ligands, complexes and catalysts therefrom; processes for producing polyolefins therewith |
SG120869A1 (en) * | 2001-05-31 | 2006-04-26 | Mitsui Chemicals Inc | Olefin block copolymer, viscosity index improver for lubricating oils and lubricating oil composition |
US6953764B2 (en) | 2003-05-02 | 2005-10-11 | Dow Global Technologies Inc. | High activity olefin polymerization catalyst and process |
EP1730203B1 (en) | 2004-03-17 | 2008-12-31 | ExxonMobil Chemical Patents, Inc., A Corporation of the State of Delaware | Catalyst composition and use thereof |
WO2006036748A2 (en) | 2004-09-22 | 2006-04-06 | Symyx Technologies, Inc. | Heterocycle-amine ligands, compositions, complexes, and catalysts, and methods of making and using the same |
BRPI0620567B1 (en) | 2005-12-09 | 2018-05-29 | Dow Global Technologies Inc. | Process for Producing an Ethylene / (Alpha) -olefin Interpolymer Composition |
US20090306318A1 (en) | 2006-05-05 | 2009-12-10 | Boone Harold W | Ortho-metallated hafnium complexes of imidazole ligands |
WO2008005100A1 (en) | 2006-06-30 | 2008-01-10 | Exxonmobil Chemical Patents Inc. | Viscosity index modifiers and lubricant compositions containing such viscosity index modifiers |
US8710163B2 (en) | 2008-07-25 | 2014-04-29 | Exxonmobil Chemical Patents Inc. | Pyridyldiamido transition metal complexes, production and use thereof |
US7973116B2 (en) | 2008-07-25 | 2011-07-05 | Exxonmobil Chemical Patents Inc. | Pyridyldiamido transition metal complexes, production and use thereof |
US8394902B2 (en) | 2008-07-25 | 2013-03-12 | Exxonmobil Chemical Patents Inc. | Pyridyldiamido transition metal complexes, production and use thereof |
US8674040B2 (en) | 2008-07-25 | 2014-03-18 | Exxonmobil Chemical Patents Inc. | Pyridyldiamido transition metal complexes, production and use thereof |
GB2463788B (en) | 2008-09-29 | 2010-12-15 | Amira Pharmaceuticals Inc | Heteroaryl antagonists of prostaglandin D2 receptors |
WO2010055652A1 (en) | 2008-11-11 | 2010-05-20 | 東ソー・ファインケム株式会社 | Solid polymethylaluminoxane composition and process for producing same |
CN102421807B (en) | 2009-03-06 | 2015-03-18 | 陶氏环球技术有限责任公司 | Catalysts, processes for making catalysts, processes for making polyolefin compositions and polyolefin compositions |
CN102869684B (en) | 2010-05-11 | 2015-12-02 | 东曹精细化工株式会社 | Solid carrier-poly-methylaluminoxane complex body, its manufacture method, the polymerizing catalyst of olefines and manufacture method of polyolefins |
US8658556B2 (en) | 2011-06-08 | 2014-02-25 | Exxonmobil Chemical Patents Inc. | Catalyst systems comprising multiple non-coordinating anion activators and methods for polymerization therewith |
US20130131294A1 (en) | 2011-11-21 | 2013-05-23 | John R. Hagadorn | Amidinate Catalyst Compounds, Process for Their Use and Polymers Produced Therefrom |
EP2862889B1 (en) | 2012-03-28 | 2017-01-04 | Tosoh Finechem Corporation | Method for producing solid polymethylaluminoxane composition having small particle diameter |
CN105143278B (en) | 2013-04-23 | 2017-08-29 | 埃克森美孚化学专利公司 | Pyridine radicals diamines metallic catalyst and the method for preparing polyolefin |
WO2015073157A1 (en) * | 2013-11-15 | 2015-05-21 | Exxonmobil Chemical Patents Inc. | Process to produce polymers from pyridyldiamido transition metal complexes and use thereof |
SG11201602648PA (en) * | 2013-11-15 | 2016-05-30 | Exxonmobil Chem Patents Inc | Process to produce polymers from pyridyldiamido transition metal complexes and use thereof |
CN112513110B (en) | 2018-03-08 | 2023-10-27 | 埃克森美孚化学专利公司 | Ethylene-propylene linear copolymers as viscosity modifiers |
-
2020
- 2020-08-25 WO PCT/US2020/047790 patent/WO2021041406A1/en unknown
- 2020-08-25 JP JP2022513639A patent/JP2022546499A/en active Pending
- 2020-08-25 CN CN202080075216.8A patent/CN114787202A/en active Pending
- 2020-08-25 US US17/635,500 patent/US20220289882A1/en active Pending
- 2020-08-25 EP EP20768436.6A patent/EP4021948A1/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1104487C (en) | Method for improvement of low-temp. fluidity of lubricating oil using high- and low-molecular weight polymeric additives | |
JP6439809B2 (en) | Method for producing a polymer composition useful as an oil modifier | |
US11578155B2 (en) | Ethylene-propylene linear copolymers as viscosity modifiers | |
WO2010027454A1 (en) | Enhancement of low temperature performance of group iii base stocks by blending with hvi-pao | |
CN104411810A (en) | Poly(meth)acrylate-based viscosity index improver, lubricant additive and lubricant composition containing viscosity index improver | |
EP3762475A1 (en) | Ethylene-propylene branched copolymers as viscosity modifiers with enhanced fuel economy | |
JP6757253B2 (en) | Lubricating oil viscosity modifiers, lubricating oil additive compositions, and lubricating oil compositions | |
JPWO2021041406A5 (en) | ||
US20220403278A1 (en) | Method for preparing high viscosity index poly-alpha-olefin | |
US11618797B2 (en) | Acrylate-olefin copolymers as high viscosity base fluids | |
JPH0641562A (en) | Synthesis oil and motor oil, gear oil and hydraulic oil comprising same | |
US11655428B2 (en) | Lubricating oil compositions and lubricating oil viscosity modifiers | |
US20200362263A1 (en) | Bimodal Copolymer Compositions Useful as Oil Modifiers | |
US11926802B2 (en) | Lubricating oil composition with viscosity modifier based on syndiotactic propylene-based ethylene- propylene copolymers with improved properties | |
JP2024518830A (en) | Branched ethylene-propylene copolymers as viscosity modifiers | |
CN111057180B (en) | Viscosity index improver and preparation method and application thereof | |
US20230383212A1 (en) | Acrylate-olefin copolymers as high viscosity base fluids | |
JP7219678B2 (en) | Viscosity modifier for lubricating oil, additive composition for lubricating oil, and lubricating oil composition | |
WO2023002947A1 (en) | Viscosity modifier for lubricating oil, and lubricating oil composition for hydraulic oil | |
JP6840544B2 (en) | Lubricating oil composition for automobile transmissions | |
CN117777352A (en) | Viscosity index improver, preparation method thereof, refrigerator oil and working fluid composition | |
CA3216266A1 (en) | Ethylene-propylene branched copolymers used as viscosity modifiers | |
EP4021948A1 (en) | Ethylene copolymers and use as viscosity modifiers | |
KR20210052038A (en) | Ethylene/α-olefin copolymer and method for producing the same | |
WO2020194551A1 (en) | Lubricant oil composition for compressor oil and method for preparing same |