Patent EP0067002A1 successfully refreshed from Google Patents.
EP0067002A1
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Novel boron-containing compositions useful as lubricant additives
Assignee: Lubrizol Corp
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Filing: 1982-05-24
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Granted: —
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Expires: 2002-05-24
Abstract
Abstract Reaction products of boric acid or boron trioxide with an epoxide having at least 8 carbon atoms (especially a straight-chain aliphatic epoxide) are useful anti-wear, friction modifying and rust inhibiting additives for lubricants. They are particularly useful in lubricants containing relatively large amounts of basic alkaline earth metal phenates or salicylates and/or free hydroxy group-containing alkenyisuccinic acid ester dispersants.
Inventors
- 👤 Kirk Emerson C/O The Lubrizol Corporation Davis
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 10:48
CPC Classifications
C; C10; C10M; C10M163/00; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10M139/00; C10M2205/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/028; C10M2207/26; C10M2207/262; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/086; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/135; C10N2040/20; C10N2040/25; C10N2040/251; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2040/28
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
76 words
A method for preparing an oil-soluble boron-containing composition which comprises reacting, at a temperature from about 80° to about 250°C., (A) at least one of boric acid and boron trioxide with (B) at least one epoxide having the formula wherein each of R 1 , R 2 , R 3 and R 4 is hydrogen or an aliphatic radical or any two thereof together form a cyclic radical, said epoxide containing at least 8 carbon atoms.
Claim 2
Independent Claim
76 words
A method for preparing an oil-soluble boron-containing composition which comprises reacting, at a temperature from about 80° to about 250°C., (A) at least one of boric acid and boron trioxide with (B) at least one epoxide having the formula wherein each of R 1 , R 2 , R 3 and R 4 is hydrogen or an aliphatic radical or any two thereof together form a cyclic radical, said epoxide containing at least 8 carbon atoms.
Claim 3
Dependent Claim
40 words
A method according to claim 1 wherein each of R 1 , R 2 , R 3 and R 4 is hydrogen or an aliphatic radical, at least one thereof being an aliphatic radical containing at least 6 carbon atoms.
Claim 4
Dependent Claim
34 words
A method according to claim 2 wherein R 1 is an alkyl radical containing from about 10 to about 20 carbon atoms and R 2 , R 3 and R 4 are each hydrogen.
Claim 5
Dependent Claim
12 words
A method according to claim 3 wherein reagent A is orthoboric acid.
Claim 6
Dependent Claim
13 words
A method according to claim 4 wherein R 1 is a straight-chain radical.
Claim 7
Dependent Claim
23 words
A method according to claim 5 wherein the molar ratio of component A to component B is between about 1:0.25 and about 1:4.
Claim 8
Dependent Claim
13 words
A method according to claim 6 wherein R 1 is the tetradecyl radical.
Claim 9
Independent Claim
25 words
A method according to any of claims 1-7 wherein reagent B is added gradually to a blend of reagent A with a "heel" of product.
Claim 10
Independent Claim
24 words
A method according to any of claims 1-7 wherein the reaction is effected in the presence of a catalytic amount of an alkaline reagent.
Claim 11
Dependent Claim
14 words
A method according to claim 9 wherein the alkaline reagent is an aliphatic amine.
Claim 12
Dependent Claim
13 words
A method according to claim 10 wherein the amine is a tertiary amine.
Claim 13
Dependent Claim
11 words
A method according to claim 11 wherein the amine is tri-n-butylamine.
Claim 14
Dependent Claim
23 words
. A method according to claim 8 wherein the reaction is effected in the presence of a catalytic amount of an alkaline reagent.
Claim 15
Dependent Claim
14 words
A method according to claim 13 wherein the alkaline reagent is an aliphatic amine.
Claim 16
Dependent Claim
13 words
A method according to claim 14 wherein the amine is a tertiary amine.
Claim 17
Dependent Claim
11 words
A method according to claim 15 wherein the amine is tri-n-butylamine.
Claim 18
Dependent Claim
12 words
An oil-soluble boron-containing composition prepared by the method of any preceding claim.
Claim 19
Dependent Claim
27 words
An additive concentrate comprising a substantially inert, normally liquid organic diluent and from about 5% to about 25% by weight of a composition according to claim 17.
Claim 20
Dependent Claim
22 words
A lubricating composition comprising a major amount of a lubricating oil and a minor amount of a composition according to claim 17.
Claim 21
Dependent Claim
50 words
A lubricating composition according to claim 19 which also contains at least one of (A) basic alkaline earth metal phenate or salicylate detergents in the amount of at least 2.5% by weight and (B) free hydroxy group-containing alkenylsuccinic acid ester dispersants in the amount of at least 1.5% by weight.
References Cited (Backward Citations)
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