CA2208143A1 - Biodegradable branched synthetic ester base stocks and lubricants formed therefrom - Google Patents
Biodegradable branched synthetic ester base stocks and lubricants formed therefromInfo
- Publication number
- CA2208143A1 CA2208143A1 CA002208143A CA2208143A CA2208143A1 CA 2208143 A1 CA2208143 A1 CA 2208143A1 CA 002208143 A CA002208143 A CA 002208143A CA 2208143 A CA2208143 A CA 2208143A CA 2208143 A1 CA2208143 A1 CA 2208143A1
- Authority
- CA
- Canada
- Prior art keywords
- ester base
- synthetic ester
- carbon
- branched
- base stock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 150000002148 esters Chemical class 0.000 title abstract 4
- 239000000314 lubricant Substances 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 150000007513 acids Chemical class 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000006065 biodegradation reaction Methods 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Landscapes
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A biodegradable lubricant which is prepared from: about 60-99 % by weight of at least one biodegradable synthetic ester base stock which comprises the reaction product of: a branched or linear alcohol having the general formula R(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at least 2; and mixed acids comprising about 30 to 80 molar % of a linear acid having a carbon number in the range between about C5 to C12, and about 20 to 70 molar % of at least one branched acid having a carbon number in the range between about C5 to C10 and wherein no more than 10 % of the branched acids used to form the biodegradable synthetic ester base stock contains a quaternary carbon; wherein the ester base stock has a carbon to oxygen ratio of between about 0.15:1 to 0.3:1; and exhibits the following properties: at least 60 %
biodegradation in 28 days as measured by the Modified Sturm test; a pour point of less than -25 ° C; a viscosity of less than 7500 cps at -25 ° C; and oxidative stability of up to 45 minutes as measured by HPDSC.
biodegradation in 28 days as measured by the Modified Sturm test; a pour point of less than -25 ° C; a viscosity of less than 7500 cps at -25 ° C; and oxidative stability of up to 45 minutes as measured by HPDSC.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35199094A | 1994-12-08 | 1994-12-08 | |
| US08/351,990 | 1994-12-08 | ||
| PCT/US1995/016176 WO1996017907A1 (en) | 1994-12-08 | 1995-12-08 | Biodegradable branched synthetic ester base stocks and lubricants formed therefrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2208143A1 true CA2208143A1 (en) | 1996-06-13 |
| CA2208143C CA2208143C (en) | 2006-04-04 |
Family
ID=36143259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002208143A Expired - Fee Related CA2208143C (en) | 1994-12-08 | 1995-12-08 | Biodegradable branched synthetic ester base stocks and lubricants formed therefrom |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2208143C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941536A (en) * | 2021-01-27 | 2021-06-11 | 浙江丹弗中绿科技股份有限公司 | Novel wear-resistant environment-friendly engine cleaning oil and preparation method thereof |
-
1995
- 1995-12-08 CA CA002208143A patent/CA2208143C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941536A (en) * | 2021-01-27 | 2021-06-11 | 浙江丹弗中绿科技股份有限公司 | Novel wear-resistant environment-friendly engine cleaning oil and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2208143C (en) | 2006-04-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |