Composition for heat cycle system, and heat cycle system
US-2016355716-A1 · Dec 8, 2016 · US
Polyakylene glycols useful as lubricant additives for groups I-IV hydrocarbon oils
US8969271B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969271-B2 |
| Application number | US-201013379109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2010 |
| Priority date | Jul 23, 2009 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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Certain polyalkylene glycols, useful as lubricant additives, are soluble with all four types of hydrocarbon base oils (Groups I-IV) at a wide variety of ratios of oil to polyalkylene glycol and under a variety of conditions. These polyalkylene glycols are prepared by reacting a C8-C20 alcohol and a mixed butylene oxide/propylene oxide feed, wherein the ratio of butylene oxide to propylene oxide ranges from 3:1 to 1:1. The invention provides a means of providing desirable lubricant compositions which may pose fewer environmental problems.
First claim
Opening claim text (preview).
What is claimed is: 1. A lubricant composition comprising a Group I, II, III or IV hydrocarbon oil and a polyalkylene glycol, the polyalkylene glycol having been prepared by reacting a C8-C20 alcohol and a mixed 1,2-butylene oxide/propylene oxide feed, wherein the ratio of 1,2-butylene oxide to propylene oxide ranges from 3:1 to 1:3, the hydrocarbon oil and the polyalkylene glycol being soluble with one another. 2. The lubricant composition of claim 1 wherein…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8969271B2 cover?
- Certain polyalkylene glycols, useful as lubricant additives, are soluble with all four types of hydrocarbon base oils (Groups I-IV) at a wide variety of ratios of oil to polyalkylene glycol and under a variety of conditions. These polyalkylene glycols are prepared by reacting a C8-C20 alcohol and a mixed butylene oxide/propylene oxide feed, wherein the ratio of butylene oxide to propylene oxide…
- Who is the assignee on this patent?
- Greaves Martin R, Vanvoorst Ronald, Meertens Marinus, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C10M107/34. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).