Abstract:
The use of an additive composition to improve the conductivity of a fuel oil. The additive composition comprises a polymeric condensation product formed by the reaction of an aliphatic aldehyde or ketone, or a reactive equivalent, with at least one ester of p-hydroxybenzoic acid.
Abstract:
A synergistic antimicrobial composition having two components. The first component is a hydroxymethyl-substituted phosphorus compound. The second component is one of the following biocides: hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine, 2,6-dimethyl-1,3-dioxan-4-yl acetate or ortho-phenylphenol or its alkali metal or ammonium salts.
Abstract:
A method of affecting soot particulate size in an internal combustion engine exhaust by selectively providing a phosphorous based additive to the engine during combustion. Soot particulate size can be increased or decreased depending on the particular additive provided. Also disclosed in a conditioning effect experienced by using a phosphorous based additive for a period of time. A conditioned engine can also have its exhaust properties affected during the life of its conditioned state. Manipulating particle size during engine operation can employ an oligomeric phosphorous compound. Engine conditioning can employ a monomeric phosphorous containing compound, an oligomeric phosphorous containing compound, a polymeric phosphorous containing compound, or combinations thereof.
Abstract:
A diesel fuel composition which improves the performance of diesel engine particulate exhaust traps comprising a diesel fuel containing a combination of 1-25 ppm of metal in the form of a metal salt additive and 100 to 500 ppm of an oil soluble nitrogen containing ashless detergent additive.
Abstract:
The present invention relates to an apparatus and method for delivering molybdenum from a lubricant source into a fuel combustion system or to the exhaust therefrom. By the present invention, molybdenum from the lubricant or the fuel will interact with phosphorus, sulfur, and/or lead from the combustion products. In this manner, the molybdenum scavenges or inactivates harmful materials which have migrated into the fuel or combustion products, and which can otherwise poison catalytic converters, sensors and/or automotive on-board diagnostic devices. The present invention can also lead to improved durability of exhaust after treatment systems.
Abstract:
The present invention provides a method for inhibiting deposit formation in a fuel at a temperature of from 100 to 335null C., the method comprising combining with the fuel a composition comprising: (i) high temperature antioxidant; and (ii) a deposit inhibiting compound.
Abstract:
ORGANIC HALIDES AND TERTIARY PHOSPHINE SULFIDES ARE COPRODUCED BY HEATING A THIOL (E.G., ALKANE MONOTHIOL, ALKANE DITHIOL) WITH A TERTIARY PHOSPHINE IN ADMIXTURE WITH A CARBON TETRAHALIDE TO A SUITABLY ELEVATED TEMPERATURE.
Abstract:
The invention comprises phosphorus compounds of the general formula:- wherein R1 and R2 which may be the same or different are alkoxy, alkylmercapto, aryloxy, arylmercapto, aralkoxy, cycloalkoxy, alkyl, chloroalkyl, alkenyl, aralkyl, cycloalkyl, aryl or chloroaryl radicals, X1 is an oxygen or sulphur atom, X2 is a sulphur atom, X3 is a hydrogen atom or an alkyl or aryl radical and A is atom or an alkyl or aryl radical and A is the atomic grouping or groupings necessary to complete the residue of a malonic amide ester or thioester, a malonic acid diamide or a barbituric or thiobarbituric acid type compound. They may be obtained by reacting a halogeno-malonic acid amide ester (or thioester), ester), halogeno-malonic acid diamide, or halogeno-barbituric (or-thiobarbituric) acid type compound with a phosphorus compound of the formula: wherein R1, R2, X1 and X2 are as defined above, B is a hydrogen atom, alkali metal or ammonium and Hal is halogen, e.g. Cl or Br, the reaction being carried out in acid-binding agent when B is a hydrogen atom. The reaction is preferably effected at between room temperature and 80 DEG C. and may be carried out in the presence of water, an inert organic solvent or an aqueous organic solvent or in a two-phase sytem, e.g. water/ethylene chloride. The products may be of the type:- wherein R3 and R4 are hydrogen atoms, or alkyl, aralkyl, cycloalkyl or aryl radicals which may be substituted or are radicals which may be joined with the N-atom to form a heterocyclic ring, R5 is an alkoxy, alkylmercapto, aryloxy or arylmercapto radical or another NR3R4 group as defined above (including a heterocyclic ring, e.g. morpholine, piperidine, piperazine or pyrrolidine), and R1, R2, X1, X2 and X3 are as defined above. The barbituric acid type compounds may have the formula:- wherein the R1 and R2 attached to N are hydrogen atoms or alkyl radicals and Y is an oxygen or sulphur atom or an imino group and the other symbols are as defined above. Several examples are given and the products have pesticidal properties (see Division A5).ALSO:A pesticidal composition comprises a solid or liquid diluent or carrier and a phosphorus compound of the formula:- wherein R1 and R2 which may be the same or different are alkoxy, alkylmercapto, aryloxy, arylmercapto, aralkoxy, cycloalkoxy, alkyl, alkenyl chloroalkyl, alkenyl, aralkyl, cycloalkyl, aryl or chloroaryl radicals, X1 is an O or S atom, X2 is a sulphur atom, X3 is a hydrogen atom or an alkyl or aryl radical and A is the atomic grouping or groupings necessary to complete the residue of a malonic amide ester (or thioester), a malonic acid diamide or a barbituric or thiobarbituric acid type compound (see Division C2). The malonicamide type products may have the formula:- wherein R3 and R4 are hydrogen atoms, or alkyl, aralkyl, cycloalkyl or aryl radicals which may be substituted or are radicals which may be joined with the N atom to form a heterocyclic ring, R5 is an alkoxy, alkylmercapto, aryloxy or arylmercapto radical or another NR3R4 group as defined above (including a heterocyclic ring, e.g. morpholine, piperdine, piperazine or pyrrolidine) and R1, R2,X1,X2 and X3 are as defined above. The barbituric acid type compounds may have the formula:- wherein R1 and R2 attached to N are hydrogen atoms or alkyl radicals and Y is O, S, or are imino group and the other symbols are as defined above. Conventional solid and liquid diluants are specified and a suitable composition is obtained by dissolving the active ingredient in acetone, adding a commercial emulsifier and then diluting with water. Known insecticides and/or fertilisers may also be present.