Sludge dispersing agent for fuel oil and fuel oil composition containing the same
Patent 5372614 Issued on December 13, 1994. Estimated Expiration Date: 
March 29, 2013. 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.
March 29, 2013. 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 References 2548630 2579890 2980517 3116128 3186810 3210169 3833345 Rubber composition Process for modifying conjugated diene polymers Automatic calibrator InventorsAssigneeApplicationNo. 038977 filed on 03/29/1993US Classes:44/371, Nitrogen or -C(=X)-, wherein X is chalcogen, attached indirectly to the sulfonate group by nonionic bonding44/420, Carbon double bonded to the nitrogen44/422Quaternary ammonium salt or amine oxideExaminersPrimary: Howard, Jacqueline V.Attorney, Agent or FirmForeign Patent References
International ClassesC10L 001/22C10L 001/24 Foreign Application Priority Data1992-03-31 JPAbstractA sludge dispersing agent for fuel oils includes a polymer having at least one >C=N+ < bond in its molecule and at least one compound selected from the group consisting of long-chain alkyl phosphates and alkyl sulfosuccinates and salts thereof.Other References
Field of SearchSludge, pitch, tar, or tar distillate containingContaining organic -S(=O)(=O)O- compound (i.e., sulfonates) Nitrogen or -C(=X)-, wherein X is chalcogen, attached indirectly to the sulfonate group by nonionic bonding Carbon double bonded to the nitrogen Quaternary ammonium salt or amine oxide Compound of indeterminate structure prepared by reacting a heterocyclic compound of known structure | |
