摘要:
The invention relates to a sealing insert for the closure of a vessel for accommodating food, beverages and the like, which comprises a polymer compound containing at least one polymer and a lubricant, the lubricant comprising at least one branched primary fatty acid amide.
摘要:
A heat-treatment oil composition contains (A) a first base oil with a kinematic viscosity at 40 degrees C in a range of 5 mm 2 /s to 60 mm 2 /s in an amount of 50 mass% to 95 mass% of a total amount of the composition, (B) a second base oil with a kinematic viscosity at 40 degrees C of 300 mm 2 /s or more in an amount of 5 mass% to 50 mass%, and (C) an alpha-olefin copolymer. The heat-treatment oil composition according to the invention can reduce distortion unevenness and hardness unevenness accompanying mass-quenching.
摘要:
An object of the present invention is to provide a lubricating oil composition having a low viscosity and an extremely high viscosity index as well as an excellent shearing stability. The present invention relates to a lubricating oil composition including the following components (A) to (C): (A) a low-viscosity synthetic oil including a compound containing an ether bond in a molecule thereof and having a kinematic viscosity of less than 10 mm 2 /s as measured at 40°C, in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm 2 /s) of the compound as measured at 40°C satisfy the following formula (1): Kinematic Viscosity at 40 �¢ °C ‰¤ 12 - O / C ratio × 30 (B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm 2 /s or more as measured at 100°C which includes at least one compound selected from the group consisting of an ±-olefin oligomer or a hydrogenated product of the ±-olefin oligomer, and an ethylene-propylene co-oligomer; and (C) a polymethacrylate having a weight-average molecular weight of 50,000 or less.
摘要:
Processes to prepare branched polyolefins for lubricant applications comprise combining at least one olefin and a coordination-insertion catalyst under conditions such that at least one oligomer product is formed. Low molecular weight by-products are fractionated out and the oligomer product is converted to a saturated hydrocarbon via hydrogenation.
摘要:
A heat-treatment oil composition contains (A) a first base oil with a kinematic viscosity at 40 degrees C in a range of 5 mm 2 /s to 60 mm 2 /s in an amount of 50 mass% to 95 mass% of a total amount of the composition, (B) a second base oil with a kinematic viscosity at 40 degrees C of 300 mm 2 /s or more in an amount of 5 mass% to 50 mass%, and (C) an alpha-olefin copolymer. The heat-treatment oil composition according to the invention can reduce distortion unevenness and hardness unevenness accompanying mass-quenching.
摘要:
Provided is a lubricating oil composition for an internal combustion engine, including as essential components the following component (A), component (B), and component (C), in which a phosphorus content of the composition is 50 ppm by mass to 1,000 ppm by mass: Component (A): a base oil; Component (B): a compound represented by the following general formula (1); and Component (C): a metal-containing antioxidant: where R 1 to R 8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, Z represents a hydrocarbon group having 2 to 20 carbon atoms, and n represents a number of 1 to 10.