- Methods and fabrics for combating nosocomial infections
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The invention provides a method for combating and preventing nosocomial infections, comprising providing to health care facilities textile fabrics incorporating fibers coated with an oxidant, cationic form of copper, for use in patient contact and care, wherein the textile fabric is effective for the inactivation of antibiotic resistant strains of bacteria.
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- Process for the production of monoalkyltin trihalides
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The present invention is directed to a process for the production of monoalkyltin trihalides of the formula RSnX3, wherein R="alkyl or cycloalkyl and" X = Cl, Br or I, involving a redistribution reaction between tetraorganotins, triorganotin halides or diorganotin halides and tin tetrahalides, said process comprising contacting tetra- (R4Sn), tri- (R3SnX) or diorganotin halides (R2SnX2) with SnX4 to afford said monoorganotin trihalides in the presence of at least one transition metal complex, said complex comprising at least one transition metal, M, selected from Group VIII of the periodic Table of elements, at least one monodentate ligand or bidentate ligand, L, L' or L", and optionally one or more anions, X, of an organic or inorganic acid, as a catalyst or catalyst precursor.
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- Process for the preparation of halogenated 2,2-bis(trifluoromethyl)-1,3-dioxolanes
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A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of the formula STR1 wherein Rf is perhaloalkyl comprising a 2,2-bis(trihaloalkyl)-1,3-dioxolane in the presence of at least one of La, Ni, Sn, Zn, Fe, Co or Cu is disclosed. A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of the formula STR2 wherein X is Cl and each Y is independently Cl or F and wherein at least one Y is F, comprising fluorinating a halogenated 2,2-bis(trifluoromethyl)-4,4,5,5-tetrachloro-1,3-dioxolane in the presence of a catalyst which is preferably Cr2 O3 is disclosed. A process for the production of a 2,2-bis(trihaloalkyl)-1,3-dioxole of the formula STR3 comprising dehalogenating substantially only a corresponding trans-2,2-bis(perhaloalkyl)-4,5-difluoro-4,5-dichloro-1,3-dioxolane is disclosed.
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- Chemiluminescent reactions of ground and metastable states of the group IV a elements with halogens
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Earlier work on chemiluminescent beam-gas reactions of the ground states (3Pj) of Si, Ge, and Sn with F2 and of both ground and metastable states (1D, 1S) of Sn with Cl 2, Br2, and I2 is extended to include reactions of both ground and metastable states of Si, Ge, and Sn with F2, Cl2, Br2, I2, and ICl. Chemiluminescent products of metal halides and/or dihalides were observed in all of these reactions, although attempts to observe that in the similar reactions of Pb were unsuccessful. In ICl reactions with Si, Ge, and Sn, both monochloride and dichloride emission occurs, confirming the previously proposed mechanism for creating dihalide emission in Sn reactions with Br2 and I2 via a monohalide intermediate.
- Wang,Cheong,Parson
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p. 2834 - 2839
(2007/10/02)
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- Diazo pigments
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A diazo pigment dye having the formula STR1 in which R1 represents a hydrogen, chlorine or bromine atom or a nitro group, and R2 and R3 a hydrogen or chlorine atom or a methyl or methoxy group. A new coupling component for preparing the pigment is also disclosed. The dye possesses good tinctorial and advantageous environmental properties. Methods for preparing the dye are disclosed.
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