US4076642A
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Novel monoepoxy compounds as acid scavengers in functional fluids
Assignee: Monsanto Co
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Filing: 1976-05-11
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Granted: 1978-02-28
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Expires: 1996-05-11
Abstract
Abstract A new class of monoepoxyethylenecyclohexyl compounds useful as acid scavengers and corrosion inhibitors in functional fluid compositions.
Inventors
- 👤 John F. Herber
- 👤 William R. Richard, Jr.
- 👤 Robert W. Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:33
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07D303/32; C07D303/38; C07D303/40; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/36; C10M105/38; C10M105/74; C10M125/00; C10M125/14; C10M129/00; C10M129/02; C10M129/16; C10M129/18; C10M129/24; C10M129/66; C10M145/00; C10M145/02; C10M145/10; C10M145/12; C10M145/14; C10M145/18; C10M145/24; C10M145/26; C10M169/00; C10M169/04; C10M169/044; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/042; C10M2207/08; C10M2207/10; C10M2207/24; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/2825; C10M2207/283; C10M2207/2835; C10M2207/285; C10M2207/2855; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/105; C10M2211/00; C10M2211/02; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2223/00; C10M2223/003; C10M2223/02; C10M2223/023; C10M2223/04; C10M2223/0405; C10M2223/041; C10M2223/042; C10M2223/049; C10M2223/0495; C10M2223/06; C10M2223/0603; C10M2223/08; C10M2223/083; C10M2223/10; C10M2223/103; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
73 words
A compound represented by the formula ##STR5## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R or --CH 2 OR; R is an alkyl radical having from 3 to about 15 carbon atoms; R 2 is R 1 , hydrogen or an alkyl radical having from 1 to about 9 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 2
Dependent Claim
73 words
A compound represented by the formula ##STR5## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R or --CH 2 OR; R is an alkyl radical having from 3 to about 15 carbon atoms; R 2 is R 1 , hydrogen or an alkyl radical having from 1 to about 9 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 3
Dependent Claim
21 words
A compound as defined in claim 1 wherein R is an alkyl radical having from 5 to about 10 carbon atoms.
Claim 4
Dependent Claim
25 words
A compound as defined in claim 1 wherein R 2 is R 1 or an alkyl radical having from 1 to about 9 carbon atoms.
Claim 5
Dependent Claim
91 words
A compound represented by the formula ##STR6## wherein R 1 is --(CH 2 ) 0-3 --C(O)R, --C(O)R or CH 2 OR; R is an alkyl radical having from 3 to 15 carbon atoms; R 2 is hydrogen, an alkyl radical having from 1 to about 9 carbon atoms, --(CH 2 ) 0-3 --C(O)OR', --C(O)R' or CH 2 OR'; R' is an alkyl radical having from 1 to about 18 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 6
Dependent Claim
91 words
A compound represented by the formula ##STR6## wherein R 1 is --(CH 2 ) 0-3 --C(O)R, --C(O)R or CH 2 OR; R is an alkyl radical having from 3 to 15 carbon atoms; R 2 is hydrogen, an alkyl radical having from 1 to about 9 carbon atoms, --(CH 2 ) 0-3 --C(O)OR', --C(O)R' or CH 2 OR'; R' is an alkyl radical having from 1 to about 18 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 7
Dependent Claim
21 words
A compound as defined in claim 4 wherein R is an alkyl radical having from 5 to about 10 carbon atoms.
Claim 8
Dependent Claim
148 words
A hydraulic fluid composition comprising (A) at least about 50 percent by weight of a base stock material selected from the group consisting of esters and amides of an acid of phosphorus, di- or tricarboxylic acid esters, esters of polyhydric compounds, and mixtures thereof, and (B) from about 0.1 to 15 percent by weight of an epoxide compound represented by the structure ##STR7## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R or CH 2 OR; R is an alkyl radical having from 3 to about 15 carbon atoms; R 2 is hydrogen, an alkyl radical having from 1 to about 9 carbon atoms, --(CH 2 ) 0-3 --C(O)OR', --C(O)R' or CH 2 OR'; R' is an alkyl radical having from 1 to about 18 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 9
Dependent Claim
148 words
A hydraulic fluid composition comprising (A) at least about 50 percent by weight of a base stock material selected from the group consisting of esters and amides of an acid of phosphorus, di- or tricarboxylic acid esters, esters of polyhydric compounds, and mixtures thereof, and (B) from about 0.1 to 15 percent by weight of an epoxide compound represented by the structure ##STR7## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R or CH 2 OR; R is an alkyl radical having from 3 to about 15 carbon atoms; R 2 is hydrogen, an alkyl radical having from 1 to about 9 carbon atoms, --(CH 2 ) 0-3 --C(O)OR', --C(O)R' or CH 2 OR'; R' is an alkyl radical having from 1 to about 18 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 10
Dependent Claim
130 words
A hydraulic fluid composition comprising (A) at least about 50 percent by weight of a base stock material selected from the group consisting of esters and amides of an acid of phosphorus, di- or tricarboxylic acid esters, esters of polyhydric compounds, and mixtures thereof, and (B) from about 0.1 to 15 percent by weight of an epoxide compound represented by the structure ##STR8## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R, or --CH 2 OR where R is an alkyl radical having from 1 to about 18 carbon atoms, R 2 is R 1 , hydrogen or an alkyl radical having from 1 to about 9 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 11
Dependent Claim
130 words
A hydraulic fluid composition comprising (A) at least about 50 percent by weight of a base stock material selected from the group consisting of esters and amides of an acid of phosphorus, di- or tricarboxylic acid esters, esters of polyhydric compounds, and mixtures thereof, and (B) from about 0.1 to 15 percent by weight of an epoxide compound represented by the structure ##STR8## wherein R 1 is --(CH 2 ) 0-3 --C(O)OR, --C(O)R, or --CH 2 OR where R is an alkyl radical having from 1 to about 18 carbon atoms, R 2 is R 1 , hydrogen or an alkyl radical having from 1 to about 9 carbon atoms; R 3 and R 4 are individually hydrogen or an alkyl radical having from 1 to about 4 carbon atoms.
Claim 12
Dependent Claim
14 words
A composition of claim 7 wherein R 1 is --(CH 2 ) 0-3 --C(O)OR.
Claim 13
Dependent Claim
62 words
A composition of claim 8 wherein the base stock material is a phosphate ester represented by the structure ##STR9## wherein R 8 , R 9 , and R 10 are hydrocarbon radicals selected from the group consisting of alkyl, alkoxyalkyl, aralkyl, aroxyalkyl, aryl, aroxyaryl, alkoxyaryl, alkaryl, and mixtures thereof and halogenated and alkyl-substituted members thereof having up to about 18 carbon atoms.
Claim 14
Dependent Claim
25 words
A composition of claim 9 wherein R 10 and R 9 are C 1-18 alkyl radicals and R 8 is a C 6-18 aryl radical.
Claim 15
Dependent Claim
18 words
A composition of claim 9 wherein the phosphate ester is a mixture of tributyl phosphate and triaryl phosphate.
Claim 16
Dependent Claim
11 words
A composition of claim 9 wherein the phosphate ester is dibutylphenylphosphate.
Claim 17
Dependent Claim
13 words
A composition of claim 12 wherein the epoxide compound is C 1-12 alkyl-5,6-epoxy-1,4-ethylenecyclohexane-2-carboxylate.
Claim 18
Dependent Claim
11 words
A composition of claim 13 wherein the epoxide compound is 2-ethylhexyl-5,6-epoxy-1,4-ethylenecyclohexane-2-carboxylate.
Claim 19
Dependent Claim
68 words
A functional fluid composition comprising a composition of claim 9 and from about 2 to 20 percent by weight of a viscosity index improver which is a polymer of an ester having the structure ##STR10## wherein R 5 and R 6 are each individually hydrogen or a C 1 to about C 10 alkyl group, and R 7 is a C 1 to about C 12 alkyl group.
Claim 20
Dependent Claim
43 words
A functional fluid composition comprising a composition of claim 9 and from about 2 to 20 percent by weight of a viscosity index improver which is a polymer of an alkylene oxide having a polymeric molecular weight of from about 1,500 to 4,500.
Claim 21
Dependent Claim
38 words
In a method of operating a hydraulic pressure device wherein a displacing force is transmitted to a displaceable member by means of a hydraulic fluid, the improvement which comprises employing as said fluid a composition of claim 7.
Claim 22
Dependent Claim
38 words
In a method of operating a hydraulic pressure device wherein a displacing force is transmitted to a displaceable member by means of a hydraulic fluid, the improvement which comprises employing as said fluid a composition of claim 15.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |