JP2021031503A5 - - Google Patents

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JP2021031503A5
JP2021031503A5 JP2019148480A JP2019148480A JP2021031503A5 JP 2021031503 A5 JP2021031503 A5 JP 2021031503A5 JP 2019148480 A JP2019148480 A JP 2019148480A JP 2019148480 A JP2019148480 A JP 2019148480A JP 2021031503 A5 JP2021031503 A5 JP 2021031503A5
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モノマー組成物の重合によって得ることができるポリアルキル（メタ）アクリレートポリマーであって、前記モノマー組成物は、
ａ）（メタ）アクリル酸と数平均分子量１，８００〜２，２００ｇ／ｍｏｌの１つのヒドロキシル化水素化ポリブタジエンとの１つ以上のエステルを、前記モノマー組成物の総質量に対して１５〜３５質量％と、
ｂ）メチル（メタ）アクリレートおよびブチル（メタ）アクリレートを、前記モノマー組成物の総質量に対して５０〜６０質量％と、
ｃ）１つ以上の直鎖または分岐鎖Ｃ７〜Ｃ３０アルキル（メタ）アクリレートを、前記モノマー組成物の総質量に対して５〜３５質量％と
を含み、ここで、メチル（メタ）アクリレートとブチル（メタ）アクリレートとの質量比は、５：１〜３：１であり、かつ前記ポリアルキル（メタ）アクリレートポリマーは、５０，０００〜２５０，０００ｇ／ｍｏｌの質量平均分子量（Ｍ ｗ ）を有する、ポリアルキル（メタ）アクリレートポリマー。 A polyalkyl (meth) acrylate polymer that can be obtained by polymerizing a monomer composition, wherein the monomer composition is
a) One or more esters of (meth) acrylic acid and one hydroxylated hydrogenated polybutadiene with a number average molecular weight of 1,800-2,200 g / mol, 15-35 relative to the total mass of the monomer composition. By mass%,
b) Methyl (meth) acrylate and butyl (meth) acrylate were added in an amount of 50 to 60% by mass based on the total mass of the monomer composition.
The c) 1 or more linear or branched C 7 -C 30 alkyl (meth) acrylate, and a 5 to 35% by weight based on the total weight of the monomer composition, wherein methyl (meth) acrylate The mass ratio of butyl (meth) acrylate to butyl (meth) acrylate is 5: 1-3: 1, and the polyalkyl (meth) acrylate polymer has a mass average molecular weight (M w ) of 50,000 to 250,000 g / mol. the a polyalkyl (meth) acrylate polymer. 前記モノマー組成物は、エーテルアルコールの（メタ）アクリレート、アミノアルキル（メタ）アクリレート、アミノアルキル（メタ）アクリルアミド、芳香族基を含むビニルモノマー、好ましくはスチレンからなる群から選択される１つ以上のモノマーｄ）をさらに含む、請求項１記載のポリマー。 The monomer composition is one or more selected from the group consisting of (meth) acrylates of ether alcohols, aminoalkyl (meth) acrylates, aminoalkyl (meth) acrylamides, vinyl monomers containing aromatic groups, preferably styrene. The polymer according to claim 1, further comprising the monomer d). 前記モノマー組成物は、モノマーｄ）を前記モノマー組成物の総質量に対して０．１〜５質量％含み、好ましくはモノマーｄ）を前記モノマー組成物の総質量に対して０．１〜２質量％含む、請求項２記載のポリマー。 The monomer composition contains the monomer d) in an amount of 0.1 to 5% by mass based on the total mass of the monomer composition, preferably the monomer d) is contained in an amount of 0.1 to 2 based on the total mass of the monomer composition. The polymer according to claim 2, which contains% by mass. 前記モノマーｃ）は、１つ以上の直鎖または分岐鎖Ｃ７〜Ｃ１５アルキル（メタ）アクリレート、好ましくは直鎖または分岐鎖Ｃ１２〜Ｃ１４アルキル（メタ）アクリレートである、請求項１から３までのいずれか１項記載のポリマー。 The monomer c) is one or more straight chain or branched chain C 7 to C 15 alkyl (meth) acrylates, preferably straight chain or branched chain C 12 to C 14 alkyl (meth) acrylates, according to claim 1. The polymer according to any one of up to 3. 前記モノマー組成物は、モノマーａ）を、前記モノマー組成物の総質量に対して１５〜３０質量％含む、請求項１から４までのいずれか１項記載のポリマー。 The polymer according to any one of claims 1 to 4, wherein the monomer composition contains the monomer a) in an amount of 15 to 30% by mass based on the total mass of the monomer composition. 前記モノマー組成物は、モノマーｂ）を、前記モノマー組成物の総質量に対して５０〜５５質量％含む、請求項１から５までのいずれか１項記載のポリマー。 The polymer according to any one of claims 1 to 5, wherein the monomer composition contains a monomer b) in an amount of 50 to 55% by mass based on the total mass of the monomer composition. 前記モノマー組成物は、モノマーｃ）を、前記モノマー組成物の総質量に対して１５〜３５質量％含む、請求項１から６までのいずれか１項記載のポリマー。 The polymer according to any one of claims 1 to 6, wherein the monomer composition contains the monomer c) in an amount of 15 to 35% by mass based on the total mass of the monomer composition. 前記モノマー組成物の総質量に対する前記モノマー組成物のモノマーａ）、ｂ）、ｃ）およびｄ）の質量含分の合計は、１００質量％である、請求項１から７までのいずれか１項記載のポリマー。 Any one of claims 1 to 7, wherein the total mass content of the monomers a), b), c) and d) of the monomer composition with respect to the total mass of the monomer composition is 100% by mass. The polymer described. 前記モノマー組成物は、
ａ）（メタ）アクリル酸と数平均分子量１，８００〜２，２００ｇ／ｍｏｌの１つのヒドロキシル化水素化ポリブタジエンとの１つ以上のエステルを、前記モノマー組成物の総質量に対して１５〜３０質量％と、
ｂ）メチル（メタ）アクリレートおよびブチル（メタ）アクリレートを、前記モノマー組成物の総質量に対して５０〜５５質量％と、
ｃ）１つ以上の直鎖Ｃ１２〜Ｃ１４アルキル（メタ）アクリレートを、前記モノマー組成物の総質量に対して２０〜３０質量％と、
ｄ）スチレンを、前記モノマー組成物の総質量に対して０．１〜２質量％と
を含み、ここで、前記モノマー組成物の総質量に対する前記モノマー組成物のモノマーａ）、ｂ）、ｃ）およびｄ）の質量含分の合計は、１００質量％である、請求項１から８までのいずれか１項記載のポリマー。 The monomer composition is
a) One or more esters of (meth) acrylic acid and one hydroxylated hydrogenated polybutadiene with a number average molecular weight of 1,800-2,200 g / mol, 15-30 with respect to the total mass of the monomer composition. By mass%,
b) Methyl (meth) acrylate and butyl (meth) acrylate were added in an amount of 50 to 55% by mass based on the total mass of the monomer composition.
c) One or more linear C 12 to C 14 alkyl (meth) acrylates may be added in an amount of 20 to 30% by mass based on the total mass of the monomer composition.
d) Styrene contains 0.1 to 2% by mass with respect to the total mass of the monomer composition, where the monomers a), b), c of the monomer composition with respect to the total mass of the monomer composition. The polymer according to any one of claims 1 to 8, wherein the total mass content of) and d) is 100% by mass. ポリアルキル（メタ）アクリレートポリマーの製造方法であって、
（ｘ）請求項１から９までのいずれか１項記載のモノマー組成物を提供する工程と、
（ｙ）前記モノマー組成物のラジカル重合を開始する工程と
を含む、方法。 A method for producing a polyalkyl (meth) acrylate polymer.
(X) The step of providing the monomer composition according to any one of claims 1 to 9 , and the step of providing the monomer composition.
(Y) A method comprising a step of initiating radical polymerization of the monomer composition. 潤滑剤組成物の粘度指数およびせん断抵抗性を改善するための潤滑剤組成物用の添加剤としての、請求項１から９までのいずれか１項記載のポリアルキル（メタ）アクリレートポリマーの使用。 Use of the polyalkyl (meth) acrylate polymer according to any one of claims 1 to 9 as an additive for the lubricant composition to improve the viscosity index and shear resistance of the lubricant composition. （ｉ）１つ以上の基油と、
（ｉｉ）請求項１から９までのいずれか１項記載のポリアルキル（メタ）アクリレートポリマーと
を含む、組成物。 (I) One or more base oils and
(Ii) A composition comprising the polyalkyl (meth) acrylate polymer according to any one of claims 1 to 9. 前記１つ以上の基油は、ＡＰＩグループＩＩＩの基油またはＡＰＩグループＩＩＩの基油の混合物である、請求項１２記載の組成物。 The composition according to claim 12 , wherein the one or more base oils are a mixture of API group III base oils or API group III base oils. 前記組成物は、前記組成物の総質量に対して９０〜９９．５質量％、好ましくは９２〜９９．５質量％の１つ以上の基油（ｉ）と、前記組成物の総質量に対して０．５〜１０質量％、好ましくは０．５〜８質量％の前記ポリアルキル（メタ）アクリレートポリマー（ｉｉ）とを含む潤滑剤組成物である、請求項１２または１３記載の組成物。 The composition contains one or more base oils (i) of 90 to 99.5% by mass, preferably 92 to 99.5% by mass, based on the total mass of the composition, and the total mass of the composition. The composition according to claim 12 or 13 , which is a lubricant composition containing 0.5 to 10% by mass, preferably 0.5 to 8% by mass of the polyalkyl (meth) acrylate polymer (ii). ..
JP2019148480A 2019-08-13 2019-08-13 Viscosity index improver that exhibits improved shear resistance Active JP7481814B2 (en)

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DE102009001447A1 (en) 2009-03-10 2010-09-16 Evonik Rohmax Additives Gmbh Use of comb polymers to improve the load carrying capacity
JP6456468B1 (en) 2017-12-13 2019-01-23 エボニック オイル アディティヴス ゲゼルシャフト ミット ベシュレンクテル ハフツングＥｖｏｎｉｋ Ｏｉｌ Ａｄｄｉｔｉｖｅｓ ＧｍｂＨ Viscosity index improver with improved low temperature viscosity and shear resistance
EP3498808B1 (en) 2017-12-13 2020-05-13 Evonik Operations GmbH Viscosity index improver with improved shear-resistance and solubility after shear

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