公开(公告)号：US07550019B2

公开(公告)日：2009-06-23

申请号：US10896128

申请日：2004-07-21

Applicant: Matthias Krull ,  Heinz Hoffmann ,  Klaus Redlich

Inventor： Matthias Krull ,  Heinz Hoffmann ,  Klaus Redlich

IPC: C10L1/18 ,  C10L1/22

CPC classification number: C10L1/143 ,  C10L1/1641 ,  C10L1/1658 ,  C10L1/196 ,  C10L1/1973 ,  C10L1/1981 ,  C10L1/1985 ,  C10L1/221 ,  C10L1/224 ,  C10L10/14

Abstract: The invention therefore provides an additive for improving the cold flow performance of middle distillates, comprising I) at least one paraffin dispersant which is a derivative of a fatty amine, II) at least one block copolymer of the structure (AB)nA or (AB)m, where A represents blocks which are composed of olefinically unsaturated, aromatic monomers, and B represents blocks which are composed of structural elements based on polyolefins and are capable of cocrystallizing with the paraffins precipitating out of the middle distillate in the course of cooling, and n is a number in the range from 1 to 10 and m is a number in the range from 2 to 10.

Abstract translation: 因此，本发明提供了一种用于改善中间馏分的冷流性能的添加剂，其包括I）至少一种作为脂肪胺衍生物的石蜡分散剂，II）至少一种结构（AB）nA或（AB）的嵌段共聚物 ）m，其中A表示由烯属不饱和芳族单体组成的嵌段，B表示由在聚烯烃上的结构元素组成并能够在冷却过程中与中间馏分中析出的链烷烃共结晶的嵌段， n为1〜10的数，m为2〜10的数。

公开(公告)号：US6010545A

公开(公告)日：2000-01-04

申请号：US687331

申请日：1996-08-01

Applicant: Brian William Davies ,  Rinaldo Caprotti ,  Brid Dilworth

Inventor： Brian William Davies ,  Rinaldo Caprotti ,  Brid Dilworth

IPC: C10L1/08 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/19 ,  C10L1/192 ,  C10L1/197 ,  C10L1/198 ,  C10L1/22 ,  C10L1/222 ,  C10L1/224 ,  C10L1/24 ,  C10L10/04 ,  C10L10/08

CPC classification number: C10L10/08 ,  C10L1/14 ,  C10L1/143 ,  C10L1/18 ,  C10L1/191 ,  C10L1/1633 ,  C10L1/1641 ,  C10L1/165 ,  C10L1/1658 ,  C10L1/1666 ,  C10L1/1802 ,  C10L1/182 ,  C10L1/188 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/189 ,  C10L1/1895 ,  C10L1/19 ,  C10L1/1905 ,  C10L1/1915 ,  C10L1/195 ,  C10L1/1955 ,  C10L1/196 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/197 ,  C10L1/1973 ,  C10L1/198 ,  C10L1/1983 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2225 ,  C10L1/224 ,  C10L1/232 ,  C10L1/2368 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2443 ,  C10L1/2493

Abstract: The lubricity of low sulphur fuels is enhanced by incorporation of a lubricity enhancing additive in combination with a polyoxyalkylene compound.

Abstract translation: PCT No.PCT / EP95 / 04931 371日期：1996年8月1日 102（e）日期1996年8月1日PCT提交1995年12月13日PCT公布。 WO96 / 18707 PCT出版物 日期：1996年6月20日通过加入润滑性增强添加剂与聚氧化烯化合物的组合，提高了低硫燃料的润滑性。

公开(公告)号：US5772705A

公开(公告)日：1998-06-30

申请号：US750306

申请日：1996-12-05

Applicant: Rinaldo Caprotti

Inventor： Rinaldo Caprotti

IPC: C10L1/192 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/195 ,  C10L1/196 ,  C10L1/197 ,  C10L1/22 ,  C10L1/222 ,  C10L1/224 ,  C10L1/24 ,  C10L10/04 ,  C10L10/08 ,  C10L10/14 ,  C10M145/10 ,  C10M149/00

CPC classification number: C10L10/08 ,  C10L1/143 ,  C10L1/195 ,  C10L1/1966 ,  C10L1/1973 ,  C10L1/22 ,  C10L1/221 ,  C10L1/222 ,  C10L1/224 ,  C10L1/1633 ,  C10L1/1641 ,  C10L1/165 ,  C10L1/1658 ,  C10L1/1666 ,  C10L1/1852 ,  C10L1/188 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/189 ,  C10L1/1895 ,  C10L1/1905 ,  C10L1/191 ,  C10L1/192 ,  C10L1/1955 ,  C10L1/196 ,  C10L1/1963 ,  C10L1/1985 ,  C10L1/1986 ,  C10L1/2222 ,  C10L1/2225 ,  C10L1/232 ,  C10L1/236 ,  C10L1/2364 ,  C10L1/2366 ,  C10L1/2368 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2412 ,  C10L1/2418 ,  C10L1/2437 ,  C10L1/2443 ,  C10L1/245 ,  C10L1/2475

Abstract: The lubricity of low sulphur fuels is enhanced by incorporation of a cold flow improver.

Abstract translation: PCT No.PCT / EP95 / 02251 Sec。 371日期：1996年12月5日 102（e）日期1996年12月5日PCT归档1995年6月8日PCT公布。 出版物WO95 / 33805 日期1995年12月14日低硫燃料的润滑性通过加入冷流改进剂得到增强。

公开(公告)号：US5637783A

公开(公告)日：1997-06-10

申请号：US476016

申请日：1995-06-07

Applicant: Ellen B. Brandes ,  Frederick C. Loveless

Inventor： Ellen B. Brandes ,  Frederick C. Loveless

IPC: B01F17/52 ,  C07C15/40 ,  C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C08F236/04 ,  C08F236/10 ,  C08F297/02 ,  C10L1/16 ,  C10L1/18 ,  C10L1/195 ,  C10L1/196 ,  C10L1/198 ,  C10L1/20 ,  C10L1/22 ,  C10L1/236 ,  C10L1/238 ,  C10L1/24 ,  C10L10/00 ,  C10L10/18 ,  C10M143/12 ,  C10M147/02 ,  C10M149/02 ,  C10M149/06 ,  C10M149/10 ,  C10N30/02 ,  C10N30/04 ,  C10M143/10 ,  C08F236/00

CPC classification number: C10L1/195 ,  C07C15/40 ,  C08F236/04 ,  C08F297/02 ,  C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C10L1/1658 ,  C10L1/1955 ,  C10L1/196 ,  C10L1/198 ,  C10L1/207 ,  C10L1/236 ,  C10L1/238 ,  C10L1/2468 ,  C10L1/2475 ,  C10L10/18 ,  C10M143/12 ,  C10M149/06 ,  C10M149/10 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/2364 ,  C10L1/2366 ,  C10L1/2368 ,  C10L1/2383 ,  C10L1/2387 ,  C10M2205/04 ,  C10M2205/06 ,  C10M2215/04 ,  C10M2215/26 ,  C10M2217/024 ,  C10M2217/028 ,  C10M2217/046 ,  C10M2217/06

Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of a ring substituted styrene and a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled residual amounts of aromatic unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

Abstract translation: 本发明提供分散剂和分散剂粘度指数改进剂，其包括已被氢化和官能化的共轭二烯的聚合物。 分散剂物质包括包含环取代的苯乙烯和共轭二烯的共聚物的组合物。 聚合物被选择性氢化以产生具有高度控制的芳族不饱和残余量的聚合物，允许高选择性官能化。 还提供了通过本发明的分散剂物质改性其分散性和/或粘度特性的润滑剂流体，例如矿物油和合成油。 还提供了改变润滑流体如矿物和合成润滑油的分散性和/或粘度特性的方法。 分散剂物质还可以包括提供分散剂浓缩物的载体流体。

公开(公告)号：US5578237A

公开(公告)日：1996-11-26

申请号：US338287

申请日：1994-11-10

Applicant: Jacob Emert ,  Robert D. Lundberg ,  David J. Lohse

Inventor： Jacob Emert ,  Robert D. Lundberg ,  David J. Lohse

IPC: C10L1/192 ,  C08F8/00 ,  C08F8/32 ,  C08F290/00 ,  C08F290/06 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/195 ,  C10L1/196 ,  C10L1/198 ,  C10L1/20 ,  C10L1/22 ,  C10L1/234 ,  C10L1/236 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2387 ,  C10L1/24 ,  C10L1/26 ,  C10L1/30 ,  C10L10/18 ,  C10M129/95 ,  C10M133/52 ,  C10M143/02 ,  C10M143/06 ,  C10M145/10 ,  C10M149/02 ,  C10M149/06 ,  C10N20/04 ,  C10N30/04 ,  C10N40/25 ,  C10N70/00 ,  C10M145/22 ,  C10M145/20

CPC classification number: C10M149/02 ,  C08F255/023 ,  C08F255/04 ,  C08F8/14 ,  C08F8/32 ,  C10L1/143 ,  C10L1/196 ,  C10L1/198 ,  C10L1/236 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2387 ,  C10L1/2475 ,  C10M129/95 ,  C10M133/52 ,  C10M143/02 ,  C10M145/10 ,  C08F2810/20 ,  C10L1/1616 ,  C10L1/1832 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/1985 ,  C10L1/201 ,  C10L1/2364 ,  C10L1/2366 ,  C10L1/2368 ,  C10L1/2468 ,  C10L1/2641 ,  C10L1/306 ,  C10M2207/282 ,  C10M2207/287 ,  C10M2207/288 ,  C10M2207/289 ,  C10M2207/34 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/086 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2217/022 ,  C10M2217/023 ,  C10M2217/024 ,  C10M2217/028 ,  C10M2217/046 ,  C10M2217/06 ,  C10N2240/00 ,  C10N2240/02 ,  C10N2240/08 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/102 ,  C10N2240/103 ,  C10N2240/104 ,  C10N2240/106 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66 ,  C10N2270/02

Abstract: Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.5 to about 5 carboxylic acid producing moieties per polymer chain, and (B) at least one non-aromatic nucleophilic post-treating reactant selected from (i) amine compounds containing only a single reactive amino group per molecule, (ii) alcohol compounds containing only a single hydroxy group per molecule, (iii) polyamine compounds containing at least two reactive amino groups per molecule, (iv) polyol compounds containing at least two reactive hydroxy groups per molecule, (v) aminoalcohol compounds containing at least one reactive amino group and at least one reactive hydroxy group per molecule, and (vi) mixtures of (i) to (v); provided that when said post-treating reactant includes one or more of (iii), (iv) or (v), the reaction between (A) and (B) is conducted in the presence of sufficient chain-stopping or end-capping co-reactant (C) to ensure that the grafted and post-reacted product mixture is gel-free.

Abstract translation: 用于润滑和燃料油组合物的无凝胶分散剂添加剂包含至少一种（A）α-烯烃均聚物或数均分子量为700至10,000的互聚物的至少一种加合物，其平均具有约0.5至约5个羧酸自由基接枝 每个聚合物链产生部分，和（B）至少一种非芳族亲核后处理反应物，其选自（i）每分子仅含有单个反应性氨基的胺化合物，（ii）仅含有单个羟基的醇化合物 分子，（iii）每分子含有至少两个反应性氨基的多胺化合物，（iv）每分子含有至少两个反应性羟基的多元醇化合物，（v）含有至少一个反应性氨基的氨基醇化合物和至少一种反应性羟基 （vi）（i）至（v）的混合物; 条件是当所述后处理反应物包含（iii），（iv）或（v）中的一种或多种时，（A）和（B）之间的反应在足够的链终止或封端共聚物存在下进行 - 反应物（C），以确保接枝和后反应的产物混合物不凝胶。

公开(公告)号：US5545783A

公开(公告)日：1996-08-13

申请号：US382814

申请日：1995-02-03

Applicant: Thomas S. Coolbaugh ,  Frederick C. Loveless ,  Demetreos N. Matthews ,  Leslie R. Rudnick

Inventor： Thomas S. Coolbaugh ,  Frederick C. Loveless ,  Demetreos N. Matthews ,  Leslie R. Rudnick

IPC: C07C15/40 ,  C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C08F236/04 ,  C08F297/02 ,  C10L1/16 ,  C10L1/18 ,  C10L1/195 ,  C10L1/196 ,  C10L1/198 ,  C10L1/20 ,  C10L1/22 ,  C10L1/236 ,  C10L1/238 ,  C10L1/24 ,  C10L10/00 ,  C10M143/12 ,  C10M149/06 ,  C10M149/10 ,  C07C2/40 ,  C08F297/04

CPC classification number: C08F297/02 ,  C07C15/40 ,  C08F236/04 ,  C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C10L1/1658 ,  C10L1/195 ,  C10L1/1955 ,  C10L1/196 ,  C10L1/198 ,  C10L1/207 ,  C10L1/236 ,  C10L1/238 ,  C10L1/2468 ,  C10L1/2475 ,  C10L10/00 ,  C10M143/12 ,  C10M149/06 ,  C10M149/10 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/2364 ,  C10L1/2366 ,  C10L1/2368 ,  C10L1/2383 ,  C10L1/2387 ,  C10M2205/04 ,  C10M2205/06 ,  C10M2215/04 ,  C10M2215/26 ,  C10M2217/024 ,  C10M2217/028 ,  C10M2217/046 ,  C10M2217/06

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is unhydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of their original unsaturation to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random linear and star-branched block and random copolymers made from the same monomers as the linear block copolymers.Also disclosed are methods of producing the polymers and selectively hydrogenating the aforementioned polymerized dienes.

Abstract translation: 公开了包含至少一个三嵌段IBI的线性嵌段共聚物，其中I是至少一种具有至少五（5）个碳原子的聚合的共轭二烯的嵌段，例如异戊二烯，B是在 与用于聚合嵌段I的至少一种与至少四（4）个碳原子如1,3-丁二烯聚合的共轭二烯的至少一种共轭二烯。 B嵌段被选择性氢化，而每个I嵌段是未氢化的，因此保留足够量的其原始不饱和度以硫化共聚物。 还公开了另一种线性嵌段共聚物，该线性嵌段共聚物含有至少一个由少部分至少一种芳基取代的烯烃如苯乙烯制成的第一聚合物嵌段的三嵌段，以及用于聚合的至少一种共轭二烯的主要比例 嵌段I，用于聚合嵌段B的至少一种二烯的第二中间聚合物嵌段和与第一聚合物嵌段相同的第三聚合物嵌段。 在该替代共聚物中，中间嵌段也被选择性氢化，从而使末端聚合​​物嵌段具有足够量的其初始不饱和度以硫化共聚物。 聚合物可以通过含有乙烯基不饱和键的末端嵌段交联或官能化。 还公开了由与线性嵌段共聚物相同的单体制备的随机线性和星形支链嵌段和无规共聚物。 还公开了制备聚合物和选择性氢化上述聚合二烯的方法。

公开(公告)号：US5057617A

公开(公告)日：1991-10-15

申请号：US268400

申请日：1988-11-07

Applicant: Jacob Emert ,  Robert D. Lundberg

Inventor： Jacob Emert ,  Robert D. Lundberg

IPC: C08F8/34 ,  C10L1/18 ,  C10L1/24 ,  C10M129/93 ,  C10M135/26

CPC classification number: C10M135/26 ,  C08F8/32 ,  C08F8/46 ,  C10L1/2493 ,  C10M129/93 ,  C10L1/196 ,  C10L1/2406 ,  C10M2203/10 ,  C10M2203/102 ,  C10M2203/104 ,  C10M2203/106 ,  C10M2203/108 ,  C10M2205/00 ,  C10M2205/024 ,  C10M2205/026 ,  C10M2205/028 ,  C10M2205/04 ,  C10M2205/06 ,  C10M2207/027 ,  C10M2207/028 ,  C10M2207/123 ,  C10M2207/125 ,  C10M2207/129 ,  C10M2207/144 ,  C10M2207/146 ,  C10M2207/16 ,  C10M2207/22 ,  C10M2207/262 ,  C10M2207/28 ,  C10M2207/289 ,  C10M2209/04 ,  C10M2209/06 ,  C10M2209/062 ,  C10M2209/084 ,  C10M2209/086 ,  C10M2209/103 ,  C10M2209/104 ,  C10M2209/105 ,  C10M2209/107 ,  C10M2209/108 ,  C10M2209/109 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/06 ,  C10M2215/065 ,  C10M2215/08 ,  C10M2215/082 ,  C10M2215/086 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2217/022 ,  C10M2217/028 ,  C10M2217/046 ,  C10M2217/06 ,  C10M2219/022 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/068 ,  C10M2219/085 ,  C10M2219/087 ,  C10M2219/088 ,  C10M2219/089 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2221/04 ,  C10M2223/04 ,  C10M2223/042 ,  C10M2223/045 ,  C10M2223/065 ,  C10M2223/12 ,  C10M2225/04 ,  C10M2227/09 ,  C10M2229/02 ,  C10M2229/041 ,  C10M2229/05 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2240/06 ,  C10N2240/08 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/102 ,  C10N2240/103 ,  C10N2240/104 ,  C10N2240/106 ,  C10N2270/02

Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydride moieties), and (B) a monoepoxy thiol.

公开(公告)号：US5035821A

公开(公告)日：1991-07-30

申请号：US220311

申请日：1988-07-18

Applicant: David Y. Chung ,  John E. Johnston

Inventor： David Y. Chung ,  John E. Johnston

IPC: C10M159/12 ,  C08F255/00 ,  C08F255/04 ,  C08L51/06 ,  C09K3/00 ,  C10L1/196 ,  C10L1/236 ,  C10M143/02 ,  C10M145/10 ,  C10M149/06 ,  C10N30/02

CPC classification number: C10L1/196 ,  C10L1/2364 ,  C10M143/02 ,  C10M145/10 ,  C10M149/06 ,  C10M2205/00 ,  C10M2205/02 ,  C10M2205/022 ,  C10M2205/04 ,  C10M2207/283 ,  C10M2207/289 ,  C10M2209/08 ,  C10M2209/082 ,  C10M2209/084 ,  C10M2209/086 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/08 ,  C10M2215/082 ,  C10M2215/086 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2217/023 ,  C10M2217/024 ,  C10M2217/028 ,  C10M2217/046 ,  C10M2217/06

Abstract: Oil soluble viscosity index improvers-dispersants exhibiting improved cold temperature viscometric properties, and Thickening Efficiencies and Shear Stability Indexes generally similar to conventional V.I.-dispersants, comprised of the reaction products of (i) ethylene copolymer, such as copolymer of ethylene and propylene, grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic acid or anhydride moieties; (ii) polyamine having two or more primary amino groups or polyol; (iii) an amount effective to provide a V.I. improver-dispersant exhibiting improved cold temperature viscometric properties of a high functionality long chain hydrocarbyl substituted dicarboxylic acid material such as alkenyl succinic anhydride, preferably polybutene succinic anhydride, having a functionality of at least 1.2, preferably at least about 1.3, and more preferably at least 1.4; and (iv) a molecular weight stabilizing effective amount of a short chain hydrocarbyl substituted dicarboxylic acid or anhydride.

公开(公告)号：US20240067892A1

公开(公告)日：2024-02-29

申请号：US18163853

申请日：2023-02-02

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Julia A. KORNFIELD ,  Ming-Hsin WEI

IPC: C10L1/195 ,  C08F136/06 ,  C08G61/08 ,  C08K11/00 ,  C10L1/196 ,  C10L1/198 ,  C10L1/236 ,  C10L10/02 ,  C10L10/08

CPC classification number: C10L1/195 ,  C08F136/06 ,  C08G61/08 ,  C08K11/00 ,  C10L1/196 ,  C10L1/198 ,  C10L1/2366 ,  C10L10/02 ,  C10L10/08 ,  C10L1/1973

Abstract: Described herein are associative polymers capable of controlling a physical and/or chemical property of non-polar compositions that can be used when the non-polar composition is in a flow, and related compositions, methods and systems. Associative polymers herein described have a non-polar backbone with a longest span having a molecular weight that remains substantially unchanged under the flow conditions and functional groups presented at ends of the non-polar backbone, with a number of the functional groups presented at the ends of the non-polar backbone formed by associative functional groups capable of undergoing an associative interaction with another associative functional group with an association constant (k) such that the strength of each associative interaction is less than the strength of a covalent bond between atoms and in particular less than the strength of a covalent bond between backbone atoms.

公开(公告)号：US11685872B2

公开(公告)日：2023-06-27

申请号：US16987694

申请日：2020-08-07

Applicant: Infineum International Limited

Inventor： Jonathan M. Hughes ,  Timothy M. Clitherow ,  Adam P. Marsh

IPC: C10L10/04 ,  C10L10/06 ,  C10L1/16 ,  C10L1/196 ,  C10L1/14

CPC classification number: C10L10/04 ,  C10L1/143 ,  C10L1/1616 ,  C10L1/196 ,  C10L10/06 ,  C10L2270/026

Abstract: A method of reducing the incidence of deposits on the pistons of a 4-stroke marine diesel engine during operation of the engine when it is fuelled with a marine residual fuel meeting the ISO 8217 2017 fuel standard for marine residual fuels and having a sulphur content of more than 0.1% and less than 0.5% by mass. The method includes the step of lubricating the engine using a lubricating oil composition comprising:



a) at least 50% by mass, based on the mass of the composition, of an oil of lubricating viscosity;
(b) 5 to 25% by mass, based on the mass of the composition, of an oil-soluble or oil-dispersible alkali metal or alkaline earth metal salicylate detergent, or a mixture of two or more oil-soluble or oil-dispersible alkali metal or alkaline earth metal salicylate detergents;
(c) 0.1 to 10% by mass, based on the mass of the composition of one or more oil-soluble or oil-dispersible ashless dispersants; and optionally,
(d) 0.1 to 10% by mass, based on the mass of the composition of a polyalkylene-substituted succinic anhydride.