Abstract: The present invention relates to the use of a composition for stabilizing a geological formation in oil fields, gas fields, water pumping fields, mining or tunnel constructions. The composition has a hardening temperature in the range from about 40° C. to about 120° C. and can therefore be used to stabilize a geological formation in oil fields, gas fields, water pumping fields as well as in mining or tunnel constructions.

Abstract: The invention relates to compositions comprising at least one fluorinated compound of the following formula (I): wherein: X corresponds to a unit of the following formula (II): or to a sequence of said unit of formula (II), wherein R3, R4, R5 et R6 represent, independently of each other, a halogen atom, a hydrogen atom, a perfluoroalkoxy group, a perfluoroalkyl group provided that at least one of said R3, R4, R5 et R6 represents a fluorine atom, a perfluoroalkoxy group or a perfluoroalkyl group; R1 and R2 represents, independently of each other, an alkyl group; and comprising at least one lithium salt.

Abstract: This invention is directed to a composition capable of imparting surface effects to a liquid by contacting the liquid with a partially fluorinated phosphate with an ammonium cation (NH2R1R2)+ wherein R1 and R2 are independently linear or branched organic groups containing at least one carboxylate moiety and one amino moiety, and optionally be substituted, interrupted, or both with oxygen, sulfur, or nitrogen-containing moieties, or with cyclic alkyl or aryl moieties containing up to 10 carbon atoms.

Abstract: An emulsion polymerization process for the production of fluoroelastomers is disclosed wherein at least one fluorosurfactant is employed as dispersant, said fluorosurfactant being a fluoroalkylphosphoric acid ester of the formula X—Rf—(CH2)n—O—P(O)(OM)2, wherein n=1 or 2, X=H or F, M=a univalent cation, and Rf is a C4-C6 fluoroalkyl or fluoroalkoxy group. Optionally, a second dispersing agent may be employed in the polymerization, said second agent being a perfluoropolyether having at least one endgroup selected from the group consisting of carboxylic acid, a salt thereof, sulfonic acid and a salt thereof, phosphoric acid and a salt thereof.

Abstract: Disclosed is a process for preparing a compound of the following formula (2): including the steps of reacting a compound of the following formula (4): with trityl chloride to prepare trityloxy-acetic acid ethyl ester of the following formula (8): reacting the compound of formula (8) with ethyl magnesium halide to prepare 1-trityloxymethyl-cyclopropanol of the following formula (9): combining the 1-trityloxymethyl-cyclopropanol of formula (9) with diisopropylbromo-methylphosphonate in a solvent in the presence of a base to prepare (1-trityloxymethyl-cyclopropoxymethyl)-phosphonic acid diisopropyl ester of the following formula (10): as a solid form, and converting the trityl group of the compound of formula (10) into a hydroxyl group.

Abstract: An emulsion polymerization process for the production of fluoroelastomers is disclosed wherein at least one fluorosurfactant is employed as dispersant, said fluorosurfactant being a fluoroalkylphosphoric acid ester of the formula X—Rf—(CH2)n—O—P(O)(OM)2, wherein n=1 or 2, X?H or F, M=a univalent cation, and Rf is a C4-C6 fluoroalkyl or fluoroalkoxy group. Optionally, a second dispersing agent may be employed in the polymerization, said second agent being a perfluoropolyether having at least one endgroup selected from the group consisting of carboxylic acid, a salt thereof, sulfonic acid and a salt thereof, phosphoric acid and a salt thereof.

Abstract: Resolved enantiomers of the formula (IA) and (IB) wherein B is a purine or pyrimidine base or aza and/or deaza analogs thereof are useful in antiviral pharmaceutical compositions to treat retroviral infections.

Abstract: Compounds of the general formula: ##STR1## are useful as surfactants in the preparation of fluorocarbon emulsions, which can be used as oxygen-carrying blood substitutes, and for many other therapeutic and diagnostic applications. They are further useful in liposomal formulations which are themselves therapeutic agents or provide a vehicle for such agents.

Abstract: Novel angiotensin II receptor antagonists of the formula ##STR1## wherein X, X.sub.1, X.sub.2, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are as defined herein, are disclosed. These compounds are useful, for example, in the treatment of hypertension, congestive heart failure and cardiac hypertrophy.

Abstract: A fluorine-containing phosphate ester of the formula: ##STR1## wherein R.sub.f is a group containing a perfluoroalkyl polyether group of the formula:F(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.m CF.sub.2 CF.sub.2 --wherein m is 2 to 200, and n is an integer of 1 to 3 is used as a rust preventive which can be homogeneously mixed with a fluorine-containing grease.

Abstract: Herbicidal (hetero)aryloxynaphthalene derivatives of the formula ##STR1## in which X is N or --C--R.sup.5,R.sup.1, R.sup.2, R.sup.4 and R.sup.5 are hydrogen or halogen or R.sup.1 may be cyano or trifluoromethyl,R.sup.3 is halogen, trifluoromethyl, trifluoromethoxy, trifluoromethylthio or trifluoromethylsulphonyl,Y is optionally halogen-substituted alkanediyl or alkenediyl, andZ is CN or --CC--Z', whereZ' is halogen, hydroxyl, amine, alkoxy, or the like.Intermediates of the formula ##STR2## are also new.

Abstract: Pesticidal S-(halogenoalkyl)-dithiophosphoric (phosphonic) acid esters of the formula ##STR1## in which R.sup.1 represents an optionally substituted radical from the group consisting of alkyl, alkenyl, alkoxy, alkenyloxy and alkinyloxy,R.sup.2 represents an optionally substituted radical from the group consisting of alkyl, cycloalkyl, alkenyl, alkinyl and aryl,X and Y are identical or different and independently of one another represent hydrogen, halogen or alkyl, andZ represents hydrogen, halogen or alkyl.

Abstract: A novel phosphoric ester of the formula (I) ##STR1## wherein, Z represents the following radicals ##STR2## useful as modifiers for amino acids, peptides and proteins which are easily decomposable in living bodies.

Abstract: Halogenated 9-phosphonoalkyl derivatives of guanine and hypoxanthine are inhibitors of purine nucleoside phosphorylase and are useful as immuno suppressant and antiparasitic agents as well as against T cell leukemia and antiureicopoietic agents.

Abstract: Novel (halo)(hydroxy)-substituted phosphorus-containing acid derivatives are disclosed. Preferred compounds are 2-halo-3-hydroxypropyl ester derivatives of phosphorus and phosphoric acid formed by reaction of at least some amount of tertiary butyl glycidyl ether with a halogenated derivative of a phosphorus-containing acid followed by acid dealkylation of the product. The polyol products are useful in the production of polyurethane articles such as foams having increased resistance to the effects of fire. The derivatives can be additives or reactants in the polyurethane, depending on the presence or absence of terminal hydroxyl groups within the given ester moieties.

Abstract: Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate mono acid halide with a carbyloxide. For example, ((2-(3-bromo-2,2-bis(bromomethyl)propxy)ethyl(chloroethyl)-(ethyl))phospho rat e can be prepared with (2-(3-bromo-2,2-bis(bromomethyl)propoxy)ethyl)(ethyl)chloridophosphorate and ethylene oxide. The compounds are useful so-called flame-retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds.

Abstract: 2-Alkoxy C.sub.12-26 straight-chain alkyl hydroxyphosphoryl cholines, useful as hypotensive agents, anti-cancer agents and as anti-inflammatory agents.