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Class Information
Number: 44/336
Name: Fuel and related compositions > Liquid fuels (excluding fuels that are exclusively mixtures of liquid hydrocarbons) > Heterocyclic carbon compound containing a hetero ring having chalcogen or nitrogen as the only ring hetero atoms > The hetero ring contains six members including nitrogen and carbon > Plural nitrogens in the hetero ring (e.g., piperazines, etc.) > Triazine or 1,3-diazine
Description: Compositions wherein the six-membered hetero ring has three nitrogen ring members, or has two nitrogen ring members in the 1- and 3-positions of the ring.

Patents under this class:

Patent Number Title Of Patent Date Issued
8506288 Method and means for improving combustion efficiency Aug. 13, 2013
8308827 Diesel fuel composition Nov. 13, 2012
8147566 Fuel additive, additive-containing fuel compositions and method of manufacture Apr. 3, 2012
7858373 Chemical markers Dec. 28, 2010
7374588 Fuel combustion May. 20, 2008
7175678 Fuel composition Feb. 13, 2007
7112230 Fuels compositions for direct injection gasoline engines Sep. 26, 2006
7081143 Alkoxylated triazine emulsion compositions for fuel cell reformer start-up Jul. 25, 2006
6676715 Diesel fuel stabilizer Jan. 13, 2004
5830243 Fuel compositions containing N-substituted perahydro-s triazines Nov. 3, 1998
5746783 Low emissions diesel fuel May. 5, 1998
5482520 Derivatized T-butyl calixarene encapsulated cyanuric acid Jan. 9, 1996
5324334 Macrocyclic polyamide and polycyclic polyamine multifunctional fuel additive compositions Jun. 28, 1994
5322528 Composition of matter for high temperature phenolphthalein-, phenolphmalide-, fluorene-, xanthane-, and anthrone-s-triazines that are soluble in diesel fuel Jun. 21, 1994
5219955 Composition of matter for encapsulation of S-triazines using poly(1-hydroxyl-(2,6-phenylene methylenes)) for thermal stability enhancement and dissolution in diesel fuel Jun. 15, 1993
5215547 Middle distillate fuels and additives therefor Jun. 1, 1993
5199959 Composition of matter for full and partial calix[8]arene encapsulation of S-triazines for thermal stability enhancement and dissolution in diesel fuel Apr. 6, 1993
5162049 Middle distillate fuels and additives therefor Nov. 10, 1992
5000759 Stable middle distillate fuel-oil compositions Mar. 19, 1991
4994197 Triazole compositions as fuel and lube additives Feb. 19, 1991
4609379 Fuel additive Sep. 2, 1986
4585462 Combustion improver fuel additive Apr. 29, 1986
4522735 Polyphosphoramidite oligomers and stabilizer compositions thereof Jun. 11, 1985
4412845 Ethanol or gasohol fuel composition containing as inhibitor a reaction product of itaconic acid and mono-oleyl-1,3-diaminopropane Nov. 1, 1983
4367152 Selected heteroaromatic nitrogen compounds as antioxidant/metal deactivators/electrical insulators in lubricating oils and petroleum liquid fuels Jan. 4, 1983
4314907 Oil additive compositions for internal combustion engines Feb. 9, 1982
4311841 Process of preparing hexahydropyrimidines Jan. 19, 1982
4281126 N-Substituted 1,2,3,4-tetrahydropyrimidines, Hexahydropyrimidines and process for their preparation Jul. 28, 1981
4274837 Deposit control additives and fuel compositions containing them Jun. 23, 1981
4197409 Poly(oxyalkylene)aminocarbomates of alkylene polyamine Apr. 8, 1980
4185965 Amine derivatives of hydrocarbyl lactam carboxylic acids as fuel additives Jan. 29, 1980
4159898 Alkyl-guanidino-heterocyclic compounds, their manufacture and use as additives for fuels and lubricants Jul. 3, 1979
4116875 Multifunctional substituted triazine functional fluid additives and compositions containing same Sep. 26, 1978
4085105 Hexahydropyrimidines Apr. 18, 1978
4081386 Reaction mixtures from reacting di- and triazines with sulfur-containing compounds and lubricants and fuels containing the same Mar. 28, 1978
4012384 7-(N-Methyl-N-alkylamino)-1,3,5-triazaadamantanes Mar. 15, 1977
4003718 Substituted tetrahydropyrimidines Jan. 18, 1977
3936279 Hexahydropyrimidines as fuel additives Feb. 3, 1976

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