# US 2020/0399553 A1 · Glycol Ether Ester Compounds Of Neo-Alcohols Useful In Lubricating Oil Compositions And Methods Of Making The Same

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- Number: US 2020/0399553 A1
- Document ID: US20200399553A1
- Status: Published application
- Kind: A1
- Application number: 16/872,994
- Filed: 2020-05-12
- Published: 2020-12-24
- Earliest claimed: 2019-06-21
- Assignees: ExxonMobil Research and Engineering Company
- Applicants: ExxonMobil Research and Engineering Company
- Inventors: Abhimanyu O. Patil; Satish Bodige; Kyle G. Lewis
- Web page: https://patentgrep.com/patent/US20200399553A1

## CPC

- C10M 105/34: of monocarboxylic acids
- C07C 67/08: by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
- C07C 69/708: Ethers
- C10M 107/34: Polyoxyalkylenes
- C10M 2207/2815: used as base material
- C10M 2209/109: esterified
- C10M 2209/1095: used as base material
- C10N 2020/02: Viscosity; Viscosity index
- C10N 2020/065: {Saturated Compounds}
- C10N 2020/071: {Branched chain compounds}
- C10N 2030/02: Pour-point; Viscosity index
- C10N 2030/74: {Noack Volatility}
- C10N 2040/25: Internal-combustion engines
- C10M: LUBRICATING COMPOSITIONS (well drilling compositions C09K8/02); USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION (mould release, i.e. separating, agents for metals B22C3/00, for plastics or substances in a plastic state, in general B29C33/56, for glass C03B40/02; textile lubricating compositions D06M11/00, D06M13/00, D06M15/00; immersion oils for microscopy G02B21/33)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C10N: INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS

## Abstract

Compositions include ether ester compounds derived from neo-alcohols, lubricating oil base stocks containing such ester compounds, and lubricating oil compositions containing such ester compounds. Methods can include making and formulating compositions containing ether ester compounds derived from neo-alcohols.

## Claims

### Claim 1

A compound of the structural Formula F-I:
wherein R1 and R2 are independently each a hydrocarbyl group comprising at least 2 carbon atoms; and R3 is a glycol ether or a polyglycol ether.

### Claim 2 (depends on 1)

The compound of claim 1, wherein R1 and R2 are each independently a C2 to C30 linear or branched alkyl group.

### Claim 3 (depends on 1)

The compound of claim 1, wherein at least one of R1 and R2 is a linear alkyl group.

### Claim 4 (depends on 3)

The compound of claim 3, wherein at least one of R1 and R2 is selected from ethyl, n-propyl, n-butyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, n-icosyl, n-docosyl, n-tetracosyl, n-hexacosyl, and n-octacosyl.

### Claim 5 (depends on 4)

The compound of claim 4, wherein at least one of R1 and R2 is selected from n-butyl, n-hexyl, n-octyl, n-decyl, and n-dodecyl.

### Claim 6 (depends on 1)

The compound of claim 1, wherein R1 and R2 are independently each a linear alkyl group.

### Claim 7 (depends on 1)

The compound of claim 1, wherein at least one of R1 and R2 is a branched alkyl group.

### Claim 8 (depends on 7)

The compound of claim 7, wherein at least one of R1 and R2 is selected from ethylhexyl, 2-propylheptanyl, 2-butyloctyl, and 3,5-dimethyloctyl.

### Claim 9 (depends on 1)

The compound of claim 1, wherein R1 and R2 are identical.

### Claim 10 (depends on 1)

The compound of claim 1, wherein R3 is a glycol ether of the structural formula:
wherein each R4 is the same or different and is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), R5 is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), x is a value from about 0 to about 10, and y is a value from about 1 to about 10.

### Claim 11 (depends on 1)

The compound of claim 1, wherein R3 is a polyglycol ether of the structural formula:
wherein each R4 is the same or different and is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), R5 is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C41-C30), or arylalkyl group (C5-C30), x is a value from about 0 to about 10, y is a value from about 1 to about 10, and z is a value from about 0 to about 100.

### Claim 12 (depends on 1)

The compound of claim 1, wherein the compound is one or more compounds selected from the group of 2-methyl-2-octyldodecyl 2-(2-methoxyethoxy)acetate, 2-ethyl-2-octyldodecyl 2-(2-methoxyethoxy)acetate, 2-methyl-2-hexyldecyl 2-(2-methoxyethoxy)acetate, 2-methyl-2-octyldodecyl 2-(2-ethoxyethoxy)acetate, 2-methyl-2-octyldodecyl 2-(3-methoxypropoxy)acetate, 2-methyl-2-octyldodecyl 3-(2-methoxyethoxy)propionate, 2-methyl-2-octyldodecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-ethyl-2-octyldodecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-methyl-2-hexyldecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 2-(2-(2-ethoxyethoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 24243-methoxypropoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 2-(3-(2-methoxyethoxy)propoxy)acetate, and 2-methyl-2-octyldodecyl 3-(2-(2-ethoxyethoxy)ethoxy)propionate.

### Claim 13 (depends on 1)

The compound of claim 1, wherein the compound is 2-methyl-2-octyldodecyl 2-(2-methoxyethoxy)acetate or 2-methyl-2-octyldodecyl 2-(2-methoxyethoxy)ethoxy acetate.

### Claim 14

A lubricating oil composition comprising a compound defined by the structural Formula F-I:
wherein
R1 and R2 are independently each a hydrocarbyl group comprising at least 2 carbon atoms; and
R3 is a glycol ether or a polyglycol ether.

### Claim 15 (depends on 14)

A lubricating oil composition of claim 14, which is a lubricating oil formulation.

### Claim 16 (depends on 1)

A lubricating oil composition comprising one or more compounds of claim 1.

### Claim 17 (depends on 16)

A lubricating oil composition of claim 16, wherein the lubricating oil composition is formulated as a coolant for an electric vehicle.

### Claim 18 (depends on 16)

The lubricating oil composition of claim 16 having a kinematic viscosity at 100° C. as determined pursuant to ASTM D445 in the range from 1 to 140 cSt.

### Claim 19

A method for making an ester product comprising an ester compound of the structural Formula F-I:
where R1 and R2 are independently each a hydrocarbyl group comprising at least two carbon atoms; and R3 is a glycol ether or a polyglycol ether, the method comprising the steps of:
providing a neo-alcohol of the structural Formula F-II:
wherein R1 and R2 are the same as the R1 and R2 o Formula F-I, respectively;
reacting the neo-alcohol with an acid of the structural Formula II:
wherein R3 is the same as the R3 of Formula F-I, and/or an anhydride of the acid, in the presence of an acid catalyst to obtain a product mixture; and
obtaining the ester compound and/or the lubricating oil base stock from the product mixture.

### Claim 20 (depends on 19)

The method of claim 19, wherein R1 and R2 are independently each a C2 to C30 linear or branched alkyl group.

### Claim 21 (depends on 19)

The method of claim 19, wherein R1 and R2 are independently selected from ethyl, n-propyl, n-butyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, n-icosyl, n-docosyl, n-tetracosyl, n-hexacosyl, and n-octacosyl.

### Claim 22 (depends on 19)

The method of claim 19, wherein R3 is a glycol ether of the structural formula:
wherein each R4 is the same or different and is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), R5 is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), x is a value from about 0 to about 10, and y is a value from about 1 to about 10.

### Claim 23 (depends on 19)

The method of claim 19, wherein R3 is a polyglycol ether of the structural formula:
wherein each R4 is the same or different and is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), R5 is hydrogen or a substituted or unsubstituted alkyl group (C1-C30), alkenyl group (C1-C30), alkoxy group (C1-C30), aryl group (C4-C30), or arylalkyl group (C5-C30), x is a value from about 0 to about 10, y is a value from about 1 to about 10, and z is a value from about 0 to about 100.

### Claim 24 (depends on 19)

The method of claim 19, wherein the neo-alcohol is 2-ethyl-2-methylhexan-1-ol; 2-methyl-2-propylheptan-1-ol; 2-butyl-2-methyloctan-1-ol; 2-methyl-2-pentylnonan-1-ol; 2-hexyl-2-methyldecan-1-ol; 2-heptyl-2-methylundecan-1-ol; 2-methyl-2-octyldodecan-1-ol; 2-decyl-2-methyltetradecan-1-ol; 2-dodecyl-2-methylhexadecan-1-ol; 2-methyl-2-tetradecyloctadecan-1-ol; and/or 2-methyl-2-hexadecylicosan-1-ol; and/or mixtures and/or combinations thereof.

### Claim 25 (depends on 19)

The method of claim 19, wherein the acid is 2-methyl-2-octyldodecyl 2-(2-methoxyethoxy)acetate, 2-ethyl-2-octyldodecyl 2-(2-methoxyethoxy)acetate, 2-methyl-2-hexyldecyl 2-(2-methoxyethoxy)acetate, 2-methyl-2-octyldodecyl 2-(2-ethoxyethoxy)acetate, 2-methyl-2-octyldodecyl 2-(3-methoxypropoxy)acetate, 2-methyl-2-octyldodecyl 3-(2-methoxyethoxy)propionate, 2-methyl-2-octyldodecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-ethyl-2-octyldodecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-methyl-2-hexyldecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 2-(2-(2-ethoxyethoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 2-(2-(3-methoxypropoxy)ethoxy)acetate, 2-methyl-2-octyldodecyl 2-(3-(2-methoxyethoxy)propoxy)acetate, and/or 2-methyl-2-octyldodecyl 3-(2-(2-ethoxyethoxy)ethoxy)propionate.
