Ternary compositions for low-capacity refrigeration
US-9175203-B2 · Nov 3, 2015 · US
Composition based on 2,3,3,3-tetrafluoropropene
US9512343B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9512343-B2 |
| Application number | US-201113232165-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2011 |
| Priority date | Sep 20, 2010 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The subject of the present application is a composition comprising a lubricant based on polyol esters (POEs) or PVE and a refrigerant F comprising from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234A and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze). The subject of the present application is also the use of said composition in refrigeration, air conditioning and heat pumps.
First claim
Opening claim text (preview).
The invention claimed is: 1. Composition comprising (i) at least one lubricant consisting of at least one polyol ester obtained from a linear or branched carboxylic acid containing from 5 to 9 carbon atoms and (ii) a refrigerant consisting of from 15 to 35% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234yf) and from 65 to 85% by weight of trans-1,3,3,3-tetra-fluoropropene (trans-HFO-1234ze), wherein the at least one polyol ester comprises pentaerythritol ester. 2. Composition according to claim 1 , wherein the at least one polyol ester is between 10 and 50% by weight of the composition. 3. Composition according to claim 1 , wherein said composition exhibits a Hazen color of about 200 or less as measured by ASHRAE test 97-2007 after a sealed glass tube comprising the composition is welded closed and placed in an oven at 200° C. for 14 days. 4. Composition according to claim 2 , wherein said composition exhibits a Hazen color of about 200 or less as measured by ASHRAE test 97-2007 after a sealed glass tube comprising the composition is welded closed and placed in an oven at 200° C. for 14 days.
Assignees
Inventors
Classifications
Refrigerators lubricants {or compressors lubricants} · CPC title
used as base material · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
Containing Hydrofluorocarbons · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9512343B2 cover?
- The subject of the present application is a composition comprising a lubricant based on polyol esters (POEs) or PVE and a refrigerant F comprising from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234A and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze). The subject of the present application is also the use of said composition in refrigeration, air cond…
- Who is the assignee on this patent?
- Rached Wissam, Boussand Beatrice, Arkema France
- What technology area does this patent fall under?
- Primary CPC classification C09K5/045. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 2016 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).