Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives
Patent 4859210 Issued on August 22, 1989. Estimated Expiration Date: 
January 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 07/141111 filed on 01/05/1988US Classes:44/333, The hetero ring contains six members including nitrogen and carbon44/335, Plural nitrogens in the hetero ring (e.g., piperazines, etc.)44/339, The hetero ring is unsubstituted or hydrocarbyl substituted only, or salts thereof (e.g., pyridyl salicylate salts, isoquinoline, etc.)44/340, The hetero ring contains five members including nitrogen and carbon (e.g., pyrrolidones, porphines, etc.)44/391, Nitrogen attached indirectly to the -C(=O)O- by nonionic bonding44/398, Mono- di-, or polyester of polycarboxylic acids44/399, Nitrogen attached indirectly to the -C(=O)O- group by nonionic bonding44/400, Chalcogen or halogen attached indirectly to the -C(=O)O- group by nonionic bonding44/432, Plural nitrogens attached indirectly to each other by acyclic nonionic bonding44/434, Chalcogen or halogen attached indirectly to the nitrogen by acyclic nonionic bonding44/443, Plural oxygens attached indirectly to each other by acyclic nonionic bonding44/451AlkanolExaminersPrimary: Dixon, William R. Jr.Assistant: Medley, Margaret Attorney, Agent or FirmInternational ClassesC10L 1/10 (20060101)C10L 1/182 (20060101) C10M 133/52 (20060101) C10M 129/95 (20060101) C10L 1/198 (20060101) C10M 133/00 (20060101) C10M 129/90 (20060101) C10L 1/14 (20060101) C10M 133/54 (20060101) C10M 141/06 (20060101) C10L 1/2383 (20060101) C10M 133/56 (20060101) C10M 129/00 (20060101) C10M 141/00 (20060101) C10L 1/18 (20060101) C10L 1/22 (20060101) AbstractFuel motor compositions and lubricant compositions contain small amounts of one or more polybutyl or polyisobutyl alcohols of the formula (I)where R is a polybutyl or polyisobutyl radical derived from isobutene and up to 20% by weight of n-butene, or a corresponding (poly)alkoxylate or a corresponding carboxylate of the polybutyl or polyisobutyl alcohol.These additives reduce deposition at the valves of piston engines. | |
