公开(公告)号：US09587200B2

公开(公告)日：2017-03-07

申请号：US14417874

申请日：2013-07-30

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshimasa Utaka ,  Hideki Kamano

IPC: C10M161/00 ,  C10M167/00

CPC classification number: C10M161/00 ,  C10M167/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2207/289 ,  C10M2209/084 ,  C10M2215/064 ,  C10M2215/28 ,  C10M2219/046 ,  C10M2219/068 ,  C10M2223/045 ,  C10M2227/066 ,  C10M2227/09 ,  C10N2210/06 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/54 ,  C10N2230/68 ,  C10N2230/74 ,  C10N2240/10 ,  C10N2220/022 ,  C10N2210/02

Abstract: A lubricating oil composition of the present invention for an internal combustion engine is prepared by blending (A) a perbasic calcium sulfonate and/or a perbasic calcium phenate having a TBN of 200 mgKOH/g or higher, (B) predetermined binuclear and/or trinuclear organic molybdenum compounds, and (C) a polyalkyl (meth)acrylate having an SSI of 30 or lower into a lubricating base oil composed of a mineral oil and/or a synthetic oil, in which the total content of molybdenum derived from the binuclear and trinuclear organic molybdenum compounds is 0.025% by mass or higher based on the total amount of the composition, and in which the lubricating oil composition has a high-temperature high-shear viscosity at 100° C. of 4.0 to 5.0 mPa·s, a high-temperature high-shear viscosity at 150° C. of 2.5 mPa·s or lower and a NOACK value (250° C., 1 hr) of 15% by mass or less.

Abstract translation: 本发明的用于内燃机的润滑油组合物通过混合（A）TBN为200mgKOH / g以上的高碱性磺酸钙和/或高碱性酚钙，（B）预定的双核和/或 三核有机钼化合物，和（C）SSI为30以下的（甲基）丙烯酸烷基酯，由矿物油和/或合成油构成的润滑油基础油，其中衍生自双核的钼的总量 和三核有机钼化合物相对于组合物的总量为0.025质量％以上，其中润滑油组合物在100℃下的高温高剪切粘度为4.0〜5.0mPa·s， 150℃下的高温高剪切粘度为2.5mPa·s以下，NOACK值（250℃，1小时）为15质量％以下。

公开(公告)号：US10472583B2

公开(公告)日：2019-11-12

申请号：US15318837

申请日：2015-09-18

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshimasa Utaka

IPC: C10M171/02 ,  C10L10/08 ,  C10L1/16 ,  C10L1/195 ,  C10L1/197 ,  C10L1/236 ,  C10M169/04

Abstract: The present invention provides a lubricating oil composition including a viscosity index improver (A) containing a comb-shaped polymer and having an SSI (shear stability index) of 30 or less together with a base oil, wherein an HTHS viscosity (high temperature high shear viscosity) at 150° C. (T150) is 1.6 to 2.9 mPa·s, and a ratio of a kinematic viscosity at 40° C. (V40) [mm2/s] to the HTHS viscosity at 150° C. (T150) [mPa·s] (V40/T150) is 12.4 or less. The lubricating oil composition of the present invention is excellent in fuel consumption reducing properties in a low-temperature region assuming the time of starting an engine while making various properties, such as a viscosity, etc., in a high-temperature region assuming the time of high-speed operation of an engine favorable.

公开(公告)号：US09938482B2

公开(公告)日：2018-04-10

申请号：US15113931

申请日：2015-01-26

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshimasa Utaka

IPC: C10M161/00 ,  C10M167/00

CPC classification number: C10M161/00 ,  C10M167/00 ,  C10M2207/262 ,  C10M2209/084 ,  C10M2219/046 ,  C10M2219/068 ,  C10M2227/09 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/06 ,  C10N2230/02 ,  C10N2230/52 ,  C10N2230/68 ,  C10N2230/74 ,  C10N2240/10

Abstract: A lubricating oil composition for an internal combustion engine according to the present invention contains a lubricating base oil, (A1) a basic calcium salicylate having a TBN of 200 mgKOH/g or more, (A2) a basic sodium sulfonate having a TBN of 200 mgKOH/g or more and/or a basic calcium sulfonate having a TBN of 50 mgKOH/g or less, (B) a binuclear organic molybdenum compound and/or a trinuclear organic molybdenum compound, and (C) a polyalkyl (meth)acrylate having an SSI of 30 or less, a total content of molybdenum derived from the binuclear and trinuclear organic molybdenum compounds being 0.025 mass % or more relative to the whole amount of the composition and the lubricating oil composition having predetermined values of a high-temperature high-shear viscosity and a NOACK value (250° C., 1 hr).

公开(公告)号：US12043813B2

公开(公告)日：2024-07-23

申请号：US17442722

申请日：2020-03-27

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshimasa Utaka

IPC: C10M135/18 ,  C10M125/22 ,  C10M129/54 ,  C10M133/42 ,  C10M133/56 ,  C10M137/10 ,  C10M169/04 ,  C10N10/04 ,  C10N10/06 ,  C10N30/00 ,  C10N30/04 ,  C10N30/10 ,  C10N40/25

CPC classification number: C10M135/18 ,  C10M125/22 ,  C10M129/54 ,  C10M133/42 ,  C10M133/56 ,  C10M137/10 ,  C10M169/04 ,  C10M2201/084 ,  C10M2203/1006 ,  C10M2207/262 ,  C10M2215/222 ,  C10M2215/28 ,  C10M2219/066 ,  C10M2223/045 ,  C10N2010/04 ,  C10N2010/06 ,  C10N2030/04 ,  C10N2030/10 ,  C10N2030/45 ,  C10N2030/52 ,  C10N2040/255

Abstract: The invention addresses a problem of providing a lubricating oil composition for gas engines capable of suppressing viscosity increase while reducing a sulfated ash content and excellent in high-temperature detergency and base number retention. The lubricating oil composition is used for gas engines and contains a base oil (A), at least one ash-free additive (B) selected from an ash-free sulfur-based antioxidant (B1) and a hindered amine compound (B2), and a boronated imide-type dispersant (C), and satisfies the following requirements (X1) to (X3): Requirement (X1): the sulfated ash content is 0.2% by mass or less. Requirement (X2): the content of the ash-free additive (B) is 1.2% by mass or less based on the total amount of the lubricating oil composition, provided that in the case where the ash-free additive (B) contains the hindered amine compound (B2), the content of the hindered amine compound (B2) is less than 1.0% by mass based on the total amount of the lubricating oil composition. Requirement (X3): the content of the boron atom derived from the boronated imide-type dispersant (C) is 200 ppm by mass or more based on the total amount of the lubricating oil composition.

公开(公告)号：US20150175927A1

公开(公告)日：2015-06-25

申请号：US14417874

申请日：2013-07-30

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshimasa Utaka ,  Hideki Kamano

IPC: C10M161/00

CPC classification number: C10M161/00 ,  C10M167/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2207/289 ,  C10M2209/084 ,  C10M2215/064 ,  C10M2215/28 ,  C10M2219/046 ,  C10M2219/068 ,  C10M2223/045 ,  C10M2227/066 ,  C10M2227/09 ,  C10N2210/06 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/54 ,  C10N2230/68 ,  C10N2230/74 ,  C10N2240/10 ,  C10N2220/022 ,  C10N2210/02

Abstract: A lubricating oil composition of the present invention for an internal combustion engine is prepared by blending (A) a perbasic calcium sulfonate and/or a perbasic calcium phenate having a TBN of 200 mgKOH/g or higher, (B) predetermined binuclear and/or trinuclear organic molybdenum compounds, and (C) a polyalkyl (meth)acrylate having an SSI of 30 or lower into a lubricating base oil composed of a mineral oil and/or a synthetic oil, in which the total content of molybdenum derived from the binuclear and trinuclear organic molybdenum compounds is 0.025% by mass or higher based on the total amount of the composition, and in which the lubricating oil composition has a high-temperature high-shear viscosity at 100° C. of 4.0 to 5.0 mPa·s, a high-temperature high-shear viscosity at 150° C. of 2.5 mPa·s or lower and a NOACK value (250° C., 1 hr) of 15% by mass or less.

Abstract translation: 本发明的用于内燃机的润滑油组合物通过混合（A）TBN为200mgKOH / g以上的高碱性磺酸钙和/或高碱性酚钙，（B）预定的双核和/或 三核有机钼化合物，和（C）SSI为30以下的（甲基）丙烯酸烷基酯，由矿物油和/或合成油构成的润滑油基础油，其中衍生自双核的钼的总量 和三核有机钼化合物相对于组合物的总量为0.025质量％以上，其中润滑油组合物在100℃下的高温高剪切粘度为4.0〜5.0mPa·s， 150℃下的高温高剪切粘度为2.5mPa·s以下，NOACK值（250℃，1小时）为15质量％以下。