Method for producing dialkyl polysulfide, dialkyl polysulfide, extreme-pressure additive and lubricating fluid composition
US-2016215231-A1 · Jul 28, 2016 · US
Industrial gear lubricant additive package with biodegradable sulfur component
US10208267B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10208267-B2 |
| Application number | US-201515501358-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 6, 2015 |
| Priority date | Aug 6, 2014 |
| Publication date | Feb 19, 2019 |
| Grant date | Feb 19, 2019 |
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- Title
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Abstract
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The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.
First claim
Opening claim text (preview).
What is claimed is: 1. An additive package for industrial gear lubricants which meets OECD 301B comprising at least one sulfurized olefin that delivers greater than about 0.80 wt % active sulfur as measured at 150° C in ASTM D1662, wherein the at least one sulfurized olefin comprises from about 0.5 to about 20 wt % of at least one sulfurized olefin that is readily or inherently biodegradable as measured according to OECD301B, and from about 0.01 to about 1 wt % of a non-biodegradable sulfurized olefin comprising at least one of di-isobutylene, butylene, isobutylene, or mixtures thereof, wherein the non-biodegradable sulfurized olefin comprises less than 0.10 wt %, based on the total weight of the industrial gear oil lubricant, of a highly active non-biodegradable sulfurized olefin derived from di-isobutylene and less than 0.25 wt %, based on the total weight of the industrial gear oil lubricant, of a nominally active non-biodegradable sulfurized olefin derived from isobutylene. 2. The additive package of claim 1 , wherein the at least one biodegradable sulfurized olefin comprises at least one of a minimally active biodegradable sulfurized olefin as measured under ASTM D1662 at 150° C, a nominally active biodegradable sulfurized olefin as measured under ASTM D1662 at 150° C, or mixtures thereof. 3. The additive package of claim 1 , wherein the at least one sulfurized olefin that is readily or inherently biodegradable comprises at least one readily or inherently biodegradable sulfurized olefin derived from a natural source. 4. The additive package of claim 1 , where the at least one biodegradable sulfurized olefin derived from a natural source comprises at least one biodegradable sulfurized olefin derived from rapeseed oil. 5. The additive package of claim 1 , comprising further additive components. 6. An industrial gear oil lubricant comprising the additive package of claim 1 and a major amount of an oil of lubricating viscosity. 7. The industrial gear oil lubricant of claim 6 , wherein the oil of lubricating viscosity comprises at least one of synthetic oils, vegetable oils, mineral oils, or mixtures thereof. 8. The industrial gear oil lubricant of claim 7 , wherein the major amount of an oil of lubricating viscosity is biodegradable saturated synthetic oil. 9. A method of operating an industrial gear comprising applying to the gear an industrial gear oil as claimed in claim 6 , and operating the gear.
Assignees
Inventors
Classifications
Oil-bath; Gear-boxes; Automatic transmissions; Traction drives · CPC title
Environmental friendly compositions · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
Saturated Compounds · CPC title
Biodegradable compounds · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10208267B2 cover?
- The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.
- Who is the assignee on this patent?
- Lubrizol Corp
- What technology area does this patent fall under?
- Primary CPC classification C10M135/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 19 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).