公开(公告)号：US20160046886A1

公开(公告)日：2016-02-18

申请号：US14844797

申请日：2015-09-03

申请人： NanoMech, Inc.

发明人： Ajay P. Malshe

IPC分类号： C10M169/04

CPC分类号： C10M169/04 ,  B05D3/007 ,  C09D7/61 ,  C10M125/22 ,  C10M169/042 ,  C10M171/06 ,  C10M177/00 ,  C10M2201/04 ,  C10M2201/041 ,  C10M2201/042 ,  C10M2201/06 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/065 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2201/081 ,  C10M2201/082 ,  C10M2201/084 ,  C10M2201/087 ,  C10M2201/103 ,  C10M2203/0206 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/163 ,  C10M2207/0406 ,  C10M2207/1285 ,  C10M2207/2815 ,  C10M2207/2835 ,  C10M2207/2895 ,  C10M2207/401 ,  C10M2213/046 ,  C10M2213/062 ,  C10M2215/0813 ,  C10M2223/10 ,  C10M2223/103 ,  C10M2229/025 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2210/04 ,  C10N2210/08 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2230/56 ,  C10N2250/10 ,  C10N2250/14 ,  C10N2270/00 ,  Y10T428/2982

摘要： Additive packages including multifunctional additive molecules are disclosed, including, for example, organic medium intercalated with lubricant nanoparticles. The additive package may be greaseless or may he added to materials such as base oils or greases, greaseless materials, or anti-corrosives, for example. The additive package added to materials may form a coating or lubricant that may be added to a surface of an object.

摘要翻译： 公开了包括多功能添加剂分子的添加剂包，包括例如插入润滑剂纳米颗粒的有机介质。 添加剂包可以是无油的，或者可以添加到例如基础油或油脂，无油材料或防腐蚀剂等材料中。 添加到材料中的添加剂包可以形成可以添加到物体表面的涂层或润滑剂。

公开(公告)号：US20150361375A1

公开(公告)日：2015-12-17

申请号：US14816546

申请日：2015-08-03

申请人： NanoMech, Inc.

发明人： Ajay P. Malshe

IPC分类号： C10M169/04

CPC分类号： C10M169/04 ,  B05D3/007 ,  C09D7/61 ,  C10M125/22 ,  C10M169/042 ,  C10M171/06 ,  C10M177/00 ,  C10M2201/04 ,  C10M2201/041 ,  C10M2201/042 ,  C10M2201/06 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/065 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2201/081 ,  C10M2201/082 ,  C10M2201/084 ,  C10M2201/087 ,  C10M2201/103 ,  C10M2203/0206 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/163 ,  C10M2207/0406 ,  C10M2207/1285 ,  C10M2207/2815 ,  C10M2207/2835 ,  C10M2207/2895 ,  C10M2207/401 ,  C10M2213/046 ,  C10M2213/062 ,  C10M2215/0813 ,  C10M2223/10 ,  C10M2223/103 ,  C10M2229/025 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2210/04 ,  C10N2210/08 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2230/56 ,  C10N2250/10 ,  C10N2250/14 ,  C10N2270/00 ,  Y10T428/2982

摘要： A composition that includes solid lubricant nanoparticles and an organic medium is disclosed. Also disclosed are nanoparticles that include layered materials. A method of producing a nanoparticle by milling layered materials is provided. Also disclosed is a method of making a lubricant, the method including milling layered materials to form nanoparticles and incorporating the nanoparticles into a base to form a lubricant.

摘要翻译： 公开了一种包含固体润滑剂纳米颗粒和有机介质的组合物。 还公开了包括分层材料的纳米颗粒。 提供了通过研磨层压材料制备纳米颗粒的方法。 还公开了一种制备润滑剂的方法，该方法包括研磨层状材料以形成纳米颗粒并将纳米颗粒结合到基底中以形成润滑剂。

公开(公告)号：US20150024981A1

公开(公告)日：2015-01-22

申请号：US14382851

申请日：2013-03-01

申请人： JX NIPPON OIL & ENERGY CORPORATION

发明人： Yusuke Ayame ,  Kazumi Sakai ,  Yuji Shitara

IPC分类号： C10M169/06

CPC分类号： C10M169/06 ,  C10M169/00 ,  C10M2201/061 ,  C10M2203/1006 ,  C10M2205/0285 ,  C10M2213/062 ,  C10M2215/064 ,  C10M2215/0813 ,  C10M2215/1026 ,  C10M2215/221 ,  C10M2215/222 ,  C10N2220/022 ,  C10N2220/023 ,  C10N2220/032 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/046 ,  C10N2250/10 ,  C10N2270/00

摘要： Provided is a grease composition that has high lubricity, particularly excellent wear resistance, and shows only a small extent of deterioration in wear resistance with long-term use under high temperatures.The grease composition comprises at least one base oil selected from a mineral oil-based lubricant base oil and a synthetic lubricant base oil, an amide compound, a solid lubricant, and a urea-based thickener, wherein the amide compound is heated and melted at least once with the base oil.

摘要翻译： 提供了具有高润滑性，特别优异的耐磨性的润滑脂组合物，并且在高温下长期使用仅表现出较小的耐磨性劣化程度。 润滑脂组合物包含至少一种选自矿物油基润滑剂基础油和合成润滑剂基础油，酰胺化合物，固体润滑剂和脲基增稠剂的基础油，其中酰胺化合物在 最少一次用基础油。

公开(公告)号：US20130345102A1

公开(公告)日：2013-12-26

申请号：US13978455

申请日：2012-01-06

申请人： Kentaro Yamaguchi ,  Osamu Kurosawa ,  Miki Fujiwara ,  Ryuichi Ueno

发明人： Kentaro Yamaguchi ,  Osamu Kurosawa ,  Miki Fujiwara ,  Ryuichi Ueno

IPC分类号： C10M115/08

CPC分类号： C10M115/08 ,  C07D209/48 ,  C07D307/89 ,  C07D487/04 ,  C07D493/04 ,  C10M133/16 ,  C10M2207/142 ,  C10M2215/04 ,  C10M2215/06 ,  C10M2215/0813 ,  C10M2215/086 ,  C10N2230/08 ,  C10N2250/10

摘要： The present invention provides an imide compound represented by the following general formula (1). The imide compound of the present invention, particularly when used as a thickening agent for grease, is excellent in durability at high temperatures. [wherein X represents a tetravalent residue obtained by removing four carboxylic groups from an aromatic tetracarboxylic acid, Y represents a divalent residue obtained by removing two amino groups from an aliphatic diamine or an aromatic diamine, and R represents a residue obtained by removing an amino group from an aliphatic monoamine, an alicyclic monoamine, or an aromatic monoamine.]

摘要翻译： 本发明提供由以下通式（1）表示的酰亚胺化合物。 本发明的酰亚胺化合物，特别是用作润滑脂增稠剂时，耐高温性优异。 [式中，X表示通过从芳香族四羧酸除去四个羧基而得到的四价残基，Y表示通过从脂肪族二胺或芳香族二胺中除去2个氨基而得到的二价残基，R表示通过除去氨基而得到的残基 脂肪族单胺，脂环族单胺或芳香族单胺。]

公开(公告)号：US20090065287A1

公开(公告)日：2009-03-12

申请号：US11912953

申请日：2006-04-27

申请人： Hirofumi Kuwabara ,  Shigeyuki Sugimori ,  Toshihiro Asakura

发明人： Hirofumi Kuwabara ,  Shigeyuki Sugimori ,  Toshihiro Asakura

IPC分类号： B62D5/04 ,  C10M169/06

CPC分类号： C10M169/00 ,  C10M2203/1006 ,  C10M2205/0265 ,  C10M2205/0285 ,  C10M2207/1265 ,  C10M2207/1285 ,  C10M2215/0813 ,  C10M2215/1026 ,  C10M2219/068 ,  C10M2227/09 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2210/06 ,  C10N2230/08 ,  C10N2240/20 ,  C10N2250/10 ,  F16C33/6633

摘要： A rolling device is provided which employs a lubricating grease composition which considerably diminishes irregular friction fluctuations occurring on rolling/sliding friction surfaces, shows stable low-torque characteristics in a wide temperature range, can retain a sufficient oil film even at high temperatures, has along life, and contains a novel thickener. Also provided is an electric power steering apparatus employing the rolling device.The rolling device is characterized by employing a lubricating grease composition comprising: a thickener which is a mixed thickener comprising a mixture of (a) one or more diurea compounds which are one or more aliphatic diurea compounds having an average molecular weight of 500-750 in which 10-70% by mole of the linear hydrocarbon groups are unsaturated components, the aliphatic diurea compounds having been produced using as a raw material one or more primary amines having a total amine value in the range of 200-400, (b) at least one fatty acid metal salt, and (c) at least one amide compound selected from the group consisting of aliphatic amides and aliphatic bisamides represented by formulae (I) and (II): R1CONH2  (I) R1CONHR2NHCOR1  (II) (wherein R1 represents a saturated or unsaturated alkyl group having 15-17 carbon atoms and R2 represents a methylene group or an ethylene group), the proportions of (a) and of (b) and (c) satisfying the relationship: a/(b+c)=0.2−10 provided that (1) the proportion of ingredient (a) is 1-10, (2) the proportion of ingredient (b) is 0.5-2.5, and (3) the proportion of ingredient (c) is 0.5-2.5, the amount of the thickener being 2-30% by weight, based on the whole composition; (d) a base oil which is a lube base oil having a pour point of −25° C. or lower and comprising a synthetic hydrocarbon oil as the main component; and (e) an additive which is a mixture comprising an organomolybdenum complex, an organozinc compound of a dithiocarbamic acid, and an organozinc compound of dithiophosphoric acid, the amount of the additive being 1-7% by weight, based on the whole composition.

公开(公告)号：US06417143B1

公开(公告)日：2002-07-09

申请号：US09429163

申请日：1999-10-28

申请人： Hidenobu Mikami ,  Koya Ohira ,  Yoshinobu Akamatsu ,  Masaki Egami ,  Takashi Yasunishi

发明人： Hidenobu Mikami ,  Koya Ohira ,  Yoshinobu Akamatsu ,  Masaki Egami ,  Takashi Yasunishi

IPC分类号： C10M11704

CPC分类号： F16C33/6648 ,  C10M105/32 ,  C10M105/36 ,  C10M105/38 ,  C10M115/08 ,  C10M117/02 ,  C10M117/04 ,  C10M129/06 ,  C10M129/10 ,  C10M129/14 ,  C10M133/08 ,  C10M133/12 ,  C10M135/10 ,  C10M135/30 ,  C10M135/36 ,  C10M137/04 ,  C10M169/00 ,  C10M2205/00 ,  C10M2207/021 ,  C10M2207/023 ,  C10M2207/024 ,  C10M2207/026 ,  C10M2207/027 ,  C10M2207/1225 ,  C10M2207/1245 ,  C10M2207/1265 ,  C10M2207/1285 ,  C10M2207/144 ,  C10M2207/146 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/246 ,  C10M2207/2805 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/2825 ,  C10M2207/283 ,  C10M2207/2835 ,  C10M2207/284 ,  C10M2207/285 ,  C10M2207/2855 ,  C10M2207/286 ,  C10M2207/289 ,  C10M2207/34 ,  C10M2207/345 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/06 ,  C10M2215/064 ,  C10M2215/065 ,  C10M2215/066 ,  C10M2215/067 ,  C10M2215/068 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10M2215/26 ,  C10M2219/044 ,  C10M2219/087 ,  C10M2219/088 ,  C10M2219/089 ,  C10M2219/106 ,  C10M2219/108 ,  C10M2223/04 ,  C10M2223/041 ,  C10N2240/02 ,  F16C33/6633 ,  F16C2370/12

摘要： Rolling bearings are proposed in which acoustic deterioration is suppressed which maintaining low dust, low torque and long life. Also, a grease for rolling bearings is proposed which is less likely to scatter under centrifugal force at high speed rotation, whereby preventing malfunction and noise of electronic information devices. A lubricating oil film of an ester-series oil having a dynamic viscosity at 40° C. of 35 mm2/s or over is formed on the friction surface of a rolling bearing. There is also provided a high-speed rolling bearing in which a lubricating grease having its worked penetration (JIS K2220) adjusted to 175-250 is retained therein. The grease is preferably prepared by adding a thickening agent containing 50 wt % or more of an aliphatic lithium salt 12-24 in carbon number to a base oil comprising 30 wt % or more of an ester oil having a dynamic viscosity at 40° C. of 10 mm2/s or over, and having its worked penetration (JIS K2220) adjusted to 175-250.

摘要翻译： 提出了滚动轴承，其中抑制了声音劣化，其保持低灰尘，低扭矩和长寿命。 另外，提出了用于滚动轴承的润滑脂，其在高速旋转的离心力下不太可能散开，从而防止电子信息装置的故障和噪音。 在滚动轴承的摩擦面上形成有在40℃下的动态粘度为35mm 2 / s以上的酯系油的润滑油膜。 还提供了一种高效滚动轴​​承，其中保持其加工渗透（JIS K2220）调节至175-250的润滑脂。 润滑脂优选通过将含有50重量％以上脂肪族锂盐12-24的碳数的增稠剂加入到含有30重量％以上在40℃下具有动态粘度的酯油的基础油中来制备。 （JIS K2220）调整为175-250。

公开(公告)号：US06355602B1

公开(公告)日：2002-03-12

申请号：US09606190

申请日：2000-06-29

申请人： Takashi Okaniwa ,  Junichi Imai ,  Yukio Hasegawa ,  Shinichi Takabe

发明人： Takashi Okaniwa ,  Junichi Imai ,  Yukio Hasegawa ,  Shinichi Takabe

IPC分类号： C10M11508

CPC分类号： C10M169/06 ,  C10M115/08 ,  C10M125/22 ,  C10M135/04 ,  C10M135/06 ,  C10M135/10 ,  C10M135/18 ,  C10M137/10 ,  C10M159/24 ,  C10M2201/065 ,  C10M2201/066 ,  C10M2201/084 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10M2219/022 ,  C10M2219/024 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/066 ,  C10M2219/068 ,  C10M2223/045 ,  C10N2210/06 ,  C10N2240/02 ,  F16D3/223 ,  F16D2300/06

摘要： A grease composition for constant velocity joints comprises the following components: (a) a base oil; (b) a diurea type thickening agent represented by the following formula (1): R1NH—CO—NH—C6H4—p—CH2—C6H4—p—NH—CO—NHR2  (1) (in the formula (1), R1 and R2 may be the same or different from one another and each represents an aryl group or a cycloalkyl group having 6 or 7 carbon atoms); (c) a molybdenum sulfurized dialkyl dithiocarbamate; (d) a molybdenum sulfurized dialkyl dithiophosphate; (e) molybdenum disulfide; (f) a calcium salt of an alkylaromatic sulfonic acid; and (g) a phosphorus free-and sulfur-containing extreme-pressure additive. The grease composition for constant velocity joints according to the present invention has a high ability of reducing the induced thrust force and is excellent in the durability.

摘要翻译： 用于恒速接头的润滑脂组合物包括以下组分：（a）基础油; （b）由下式（1）表示的二脲型增稠剂:(式（1）中，R 1和R 2可以相同也可以不同，表示芳基，环烷基， 7个碳原子）; （c）硫化硫化二烷基二硫代氨基甲酸钼; （d）钼硫化二烷基二硫代磷酸钼; （e）二硫化钼; （f）烷基芳族磺酸的钙盐; 和（g）无磷和含硫的极压添加剂。 本发明的等速万向节用润滑脂组合物具有降低感应推力的能力，耐久性优异。

公开(公告)号：US06258760B1

公开(公告)日：2001-07-10

申请号：US09556819

申请日：2000-04-21

申请人： Takahiro Ozaki ,  Tsutomu Yoshida ,  Takao Nishimura ,  Ryuichi Masumori ,  Keizo Nagasawa ,  Yukio Asahara

发明人： Takahiro Ozaki ,  Tsutomu Yoshida ,  Takao Nishimura ,  Ryuichi Masumori ,  Keizo Nagasawa ,  Yukio Asahara

IPC分类号： C10M11508

CPC分类号： C10M169/06 ,  C10M115/08 ,  C10M119/24 ,  C10M135/04 ,  C10M135/06 ,  C10M135/18 ,  C10M135/22 ,  C10M135/26 ,  C10M137/10 ,  C10M137/105 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10M2217/044 ,  C10M2217/045 ,  C10M2219/02 ,  C10M2219/022 ,  C10M2219/024 ,  C10M2219/066 ,  C10M2219/068 ,  C10M2219/082 ,  C10M2219/083 ,  C10M2219/085 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2223/045 ,  C10M2223/047 ,  C10N2210/02 ,  C10N2210/06 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/044 ,  C10N2240/046

摘要： The present invention relates to a grease composition for a constant velocity joint, which has a low coefficient of friction to decrease the vibrations of CVJ, which comprises a base oil, a urea thickening agent, (A) a molybdenum dialkyldithiocarbamate, (B) at least one molybdenum di(alkyl or aryl)dithiophosphate represented by formula (I): wherein R1 represents a primary or secondary alkyl group or an aryl group, and (C) at least one sulfur-containing additive selected from the group consisting of an ashless dithiocarbamate, a polysulfide, zinc dithiocarbamate, sulfurized fat and oil, an olefin sulfide, a sulfur-phosphorus extreme pressure additive, and a thiadiazole extreme pressure additive, wherein each of the components (A), (B) and (C) is in an amount of 10% by weight or less based on the total weight of the grease composition.

摘要翻译： 本发明涉及一种用于等速万向节的润滑脂组合物，其具有低摩擦系数以减少CVJ的振动，其包括基础油，脲增稠剂，（A）二烷基二硫代氨基甲酸钼，（B）在 由式（I）表示的至少一种二（二烷基或芳基）二硫代磷酸酯：其中R1表示伯或仲烷基或芳基，和（C）至少一种选自无灰的含硫添加剂 二硫代氨基甲酸盐，多硫化物，二硫代氨基甲酸锌，硫化脂肪和油，烯烃硫化物，硫磷极压添加剂和噻二唑极压添加剂，其中组分（A），（B）和（C） 相对于润滑脂组合物的总重量为10重量％以下的量。

公开(公告)号：US06235690B1

公开(公告)日：2001-05-22

申请号：US09348292

申请日：1999-07-07

申请人： Atushi Shibayama ,  Hiroshi Kimura ,  Youichiro Sugimori ,  Masao Yamamoto

发明人： Atushi Shibayama ,  Hiroshi Kimura ,  Youichiro Sugimori ,  Masao Yamamoto

IPC分类号： C10M10548

CPC分类号： C10M169/02 ,  C10M105/48 ,  C10M115/08 ,  C10M117/02 ,  C10M117/04 ,  C10M2207/1225 ,  C10M2207/1245 ,  C10M2207/125 ,  C10M2207/1265 ,  C10M2207/1285 ,  C10M2207/129 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/246 ,  C10M2207/32 ,  C10M2207/325 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2240/02

摘要： An improved lubricating grease composition is herein disclosed, which comprises a base oil and a thickening agent, wherein the base oil comprises 50 to 100% by weight of a carbonate ester compound represented by the following general formula (I): R1O—CO—OR2  (I) wherein R1 and R2 each independently represents a saturated or unsaturated, linear or branched alkyl group having 6 to 30 carbon atoms, on the basis of the total weight of the base oil. The lubricating grease composition shows remarkably improved acoustic life and an improved frictional coefficient, as compared with those observed for conventional grease compositions.

摘要翻译： 本文公开了一种改进的润滑脂组合物，其包含基础油和增稠剂，其中所述基础油包含50至100重量％的由以下通式（I）表示的碳酸酯化合物：其中R 1和R 2各自 基于基础油的总重量，独立地表示具有6至30个碳原子的饱和或不饱和的直链或支链烷基。 与常规润滑脂组合物相比，润滑脂组合物显示出显着改善的声学寿命和改善的摩擦系数。

公开(公告)号：US06214774B1

公开(公告)日：2001-04-10

申请号：US09398013

申请日：1999-09-17

申请人： Seiichi Nozaki ,  Takahiro Koremoto ,  Kazuhiro Matsumoto ,  Yosiki Yamaguchi

发明人： Seiichi Nozaki ,  Takahiro Koremoto ,  Kazuhiro Matsumoto ,  Yosiki Yamaguchi

IPC分类号： C10M11508

CPC分类号： C10M169/02 ,  C07C275/40 ,  C10M107/50 ,  C10M115/08 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10M2229/025 ,  C10M2229/0405 ,  C10M2229/0415 ,  C10M2229/0425 ,  C10M2229/0435 ,  C10M2229/0445 ,  C10M2229/0455 ,  C10M2229/0465 ,  C10M2229/0475 ,  C10M2229/0485 ,  C10M2229/0505 ,  C10M2229/0515 ,  C10M2229/0525 ,  C10M2229/0535 ,  C10M2229/0545 ,  C10N2220/02 ,  C10N2240/02

摘要： A grease for a bearing of a fan comprises a base oil selected from a various kinds of silicone oils having a viscosity of 30 to 500 mm2/s at 40 degree-C. and a viscosity of 30,000 mm2/s or less at −30 degree-C., and a diurea compound, as a thickening agent, at the compounding ratio of 2 to 30%-wt. The urea compound has a general formula of: R1—NHCONH—R2—NHCONH—R3 wherein R2 indicates a tolylene group, a diphenylmethan group or a dimethylbiphenylene group, and R1 and R3 respectively indicate a straight chain saturated alkyl group having the number of carbon atoms of 6 to 18, and an alicyclic group, and wherein the ratio of the straight chain saturated alkyl group to the alicyclic group is within a range of 5 to 95 mol-% to 95 to 5%-mol. The grease maintains its properties suitable for use in a fan, and effectively restrict or prevent generation of hoot sound, while providing satisfactory durability and cost-effctiveness.

摘要翻译： 用于风扇轴承的润滑脂包括选自40℃下粘度为30〜500mm 2 / s的各种硅油的基础油。 在-30℃下的粘度为30,000mm 2 / s以下，作为增稠剂的二脲化合物配混比为2〜30重量％。 脲化合物具有以下通式：其中R 2表示甲苯基，二苯基甲基或二甲基亚联苯基，R 1和R 3分别表示碳原子数为6〜18的直链饱和烷基，脂环式 基团，其中直链饱和烷基与脂环族基团的比例在5至95摩尔％至95至5摩尔％的范围内。 润滑脂保持其适用于风扇的性能，并且有效地限制或防止产生声音，同时提供令人满意的耐久性和成本效益。