US4455244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidized mannich condensation product
Assignee: Ethyl Corp
•
Filing: 1982-06-07
•
Granted: 1984-06-19
•
Expires: 2002-06-07
Abstract
Abstract An oxidized Mannich condensation product of an oxidized olefin polymer, amine and formaldehyde yielding reactant and lube oils containing these products.
Inventors
- 👤 Granville L. Smyser
- 👤 John A. Cengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:20
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/16; C08; C08F; C08F8/00; C08F8/50; C10M143/00; C10M143/18; C08F2800/00; C08F2800/10; C10M2205/00; C10M2205/12; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2227/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
17 words
Oxidized Mannich condensation product of an oxidized olefin polymer, primary or secondary amine and formaldehyde yielding reactant.
Claim 2
Dependent Claim
17 words
Oxidized Mannich condensation product of an oxidized olefin polymer, primary or secondary amine and formaldehyde yielding reactant.
Claim 3
Dependent Claim
12 words
The product of claim 1 wherein the amine comprises an alkylene polyamine.
Claim 4
Dependent Claim
13 words
The product of claim 2 wherein the alkylene polyamine comprises a polyalkylene polyamine.
Claim 5
Dependent Claim
14 words
The product of claim 1 wherein the oxidized olefin polymer comprises an ethylene-propylene copolymer.
Claim 6
Dependent Claim
16 words
An oxidized Mannich condensation product of oxidized ethylene-propylene copolymer rubber, alkylene diamine and formaldehyde yielding reactant.
Claim 7
Dependent Claim
16 words
An oxidized Mannich condensation product of oxidized ethylene-propylene copolymer rubber, alkylene diamine and formaldehyde yielding reactant.
Claim 8
Dependent Claim
21 words
A lubricating oil composition comprising the lubricating oil and 0.1 to about 20% by weight of the product of claim 1.
Claim 9
Dependent Claim
21 words
A lubricating oil composition comprising a lubricating oil and 0.1 to about 20% by weight of the product of claim 5.
Claim 10
Independent Claim
44 words
The method of producing a lubricating oil additive which comprises (1) oxidizing a olefinic polymer (2) condensing under Mannich conditions the oxidized olefinic polymer of Step 1, primary or secondary amine and formaldehyde yielding reactant and (3) oxidizing the reaction product of Step 2.
Claim 11
Independent Claim
44 words
The method of producing a lubricating oil additive which comprises (1) oxidizing a olefinic polymer (2) condensing under Mannich conditions the oxidized olefinic polymer of Step 1, primary or secondary amine and formaldehyde yielding reactant and (3) oxidizing the reaction product of Step 2.
Claim 12
Dependent Claim
12 words
The process of claim 8 wherein the amine comprises an alkylene polyamine.
Claim 13
Dependent Claim
12 words
The process of claim 9 wherein the olefinic polymer comprises ethylene-propylene rubber.
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) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |