Claims
- 1. A fuel composition comprising a major amount of a normally liquid fuel and a minor but carburetor cleaning or anti-screen clogging amount of a product made by the process comprising reacting (A) at least one alpha hydroxy aromatic compound of the general formula ##STR19## wherein Ar is a hydrocarbyl aromatic nucleus of 6 to about 30 carbon atoms, or an analog of such an aromatic nucleus substituted with 1 to 3 lower alkoxy, lower alkylthio, chloro, or nitro substituents, each R is a nonfused hydrocarbyl group of about 25 to about 700 carbon atoms, each R' is independently a hydrogen atom, an alkyl group of 1 to 36 carbon atoms, or a halogen-substituted alkyl group of 1 to about 36 carbon atoms, n is 1 to 3 and m is 1 to 5 with the provisos that (i) the total number of carbon atoms in the R' groups does not exceed 36 and (ii) where m exceeds 1, one of the R groups can also be a ##STR20## with (B) at least one hydrocarbyl, alpha-beta olefinically unsaturated compound selected from the group consisting of C.sub.2 -.sub.40 nitriles, C.sub.2 -.sub.40 carboxylic acids and anhydrides, esters, amides and ammonium and metal salts of said C.sub.2 -.sub.40 carboxylic acids, the reaction of (A) with (B) resulting in the formation of carbon-to-carbon bond, said bond including the carbon of at least one ##STR21##
- 2. A composition as claimed in claim 1 wherein m is 1 or 2.
- 3. A composition as claimed in claim 2 wherein Ar is a benzene nucleus.
- 4. A composition as claimed in claim 1 or 2 wherein each R is a homo- or interpolymer of ethylene, propylene, butylene or isobutylene.
- 5. A composition as claimed in claim 1, 2, 3, or 4 wherein R' is hydrogen.
- 6. A composition as claimed in claim 1, 2, or 5 wherein (B) is an acid or anhydride.
- 7. A composition as claimed in claim 6 wherein (B) is maleic anhydride.
REFERENCE TO RELATED APPLICATIONS
This application is a division of my co-pending U.S. Application Ser. No. 901,173 filed Apr. 28, 1978 now U.S. Pat. No. 4,163,730 which, in turn, is a division of then copending application Ser. No. 678,101 filed Apr. 19, 1976, now U.S. Pat. No. 4,108,784 which is a continuation-in-part of application Ser. No. 459,750 filed Apr. 9, 1974, now abandoned.
US Referenced Citations (10)
Non-Patent Literature Citations (2)
Entry |
Flett et al. "Maleic Anhydride Derivatives", 1952, pp. 185 and 205. |
Martin, R.W., "The Chemistry of Phenolic Resins", 1956, pp. 224-225. |
Divisions (2)
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Number |
Date |
Country |
Parent |
901173 |
Apr 1978 |
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Parent |
678101 |
Apr 1976 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
459750 |
Apr 1974 |
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