Chevron has been granted a patent for a lubricating oil composition. The composition includes an oil of lubricating viscosity, a hydrocarbyl succinimide dispersant, a borated hydrocarbyl succinimide dispersant, and a hydrocarbyl succinimide post-treated with a post-treating agent. The oil has a kinematic viscosity of 2 to 50 mm2/s at 100°C. GlobalData’s report on Chevron gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Chevron, Anti-wear lubricants was a key innovation area identified from patents. Chevron's grant share as of September 2023 was 75%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11773341B2) discloses a lubricating oil composition that offers improved performance in internal combustion engines. The composition includes several key components:
Firstly, the composition contains a major amount of an oil of lubricating viscosity, which has a kinematic viscosity at 100°C in the range of about 2 to about 50 mm2/s. This oil serves as the base for the lubricating oil composition.
Secondly, the composition includes a non-borated hydrocarbyl succinimide dispersant. This dispersant helps to keep the engine clean by preventing the formation of deposits and sludge.
Thirdly, a borated hydrocarbyl succinimide dispersant is also included in the composition. This dispersant further enhances the cleaning properties of the lubricating oil by effectively removing deposits and preventing their formation.
Additionally, the composition contains a hydrocarbyl succinimide that has been post-treated with a post-treating agent. The post-treating agent can be selected from a group of substances including organic carbonates, epoxides, lactones, and hydroxyaliphatic carboxylic acids. This post-treatment improves the performance and stability of the lubricating oil composition.
The patent also describes the specific characteristics of the dispersants used in the composition. For example, the hydrocarbyl group of the non-borated hydrocarbyl succinimide dispersant contains between about 12 to about 350 carbon atoms. The borated hydrocarbyl succinimide dispersant is a borated polyalkenyl succinimide, with a specific example being a borated polyisobutenyl bis-succinimide derived from a polyisobutylene group with a number average molecular weight of about 700 to about 2,500.
The patent further discloses a method of operating an internal combustion engine using the lubricating oil composition described above. The method involves using the composition as the engine's lubricant, thereby benefiting from its improved cleaning and performance-enhancing properties.
Overall, this granted patent introduces a lubricating oil composition that combines various dispersants and post-treating agents to provide improved engine performance and cleanliness. The composition can be used in internal combustion engines to enhance their efficiency and longevity.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
