Abstract: A method for forming at least one product silane, comprising reacting a transition metal hydride with a starting silane in a presence of a catalyst and at a temperature that exceeds a threshold temperature associated with said reacting.

Abstract: Novel compounds comprising siloxane modified carboxylic acid substituted amines and salts thereof are provided. The compounds according to the invention provide many of the desirable properties of ethylenediamine tetraacetic acid and its salts in a stationary phase. A process for synthesis of the compounds according to the invention are also provided.

Abstract: A method for treating a terminal dihalo hydrocarbyl compound with an alkali metal indenide to produce a bis(indenyl) hydrocarbyl compound is described.

Abstract: Silanes of the general formula are prepared, wherein R1, R2 and R3 in the molecule are the same or different and represent aliphatic or aromatic hydrocarbon groups, R4 is a divalent hydrocarbon group with 4 to 12 carbon atoms and a lateral hydroxyl group, wherein the hydrocarbon group can be interrupted by an ether oxygen, R5 is a hydrophilic, ionic group. A method for synthesizing these compounds is described. The silanes greatly lower the surface tension of aqueous solutions, the surface tension being reduced to values of about 23 mN/m. The silanes are biologically degradable and have pronounced surfactant properties.

Abstract: A process is disclosed for the continuous transesterification of alkoxysilanes wherein an alkoxysilane is transformed to a different alkoxysilane in the presence of a catalyst and at least one alcohol that provides the different alkoxy group.

Abstract: Organosilicon compounds (P) containing &agr;,&bgr;-unsaturated carboxylic acid radicals, of the general formula (1) —A—O—C(O)—CR═CH2   (1), are prepared by a process in which, in a first step, organosilicon compounds (H) containing hydrogen atoms bonded directly to silicon are reacted with olefinically unsaturated compounds (U) containing a terminal double or triple bond, of the general formula (2) &OHgr;—O—C(O)—CRH—CH2—Z  (2), in the presence of metals or compounds from the platinum group as catalyst, to give organosilicon compounds (E) containing radicals of the general formula (3) —A—O—C(O)—CRH—CH2—Z  (3), and, in a second step, H—Z compounds are eliminated from organosilicon compounds (E), where A is a divalent organic radical, &OHgr; is a monovalent organic radical containing a terminal double or triple bond, R is an H atom or a methyl radical, and Z is Cl, I, Br or

Abstract: A process for producing a crosslink-cyclized cyclopentadiene, comprising the steps of reacting a cyclopentenone with an alkali metal hydride to thereby reduce the cyclopentenone (reduction step A) into a cyclopentenol; and reacting the cyclopentenol with a dehydrating agent to thereby dehydrate the cyclopentenol (dehydration step B) into a crosslink-cyclized cyclopentadiene of the general formula (III): wherein each of R1 and R2 independently represents a hydrogen atom or a linear or branched saturated alkyl group having 1 to 6 carbon atoms, n is an integer of 3 to 10, and the broken line in the 5-membered ring denotes that the 5-membered ring has two double bonds.

Abstract: There are disclosed novel quaternary ammonium functional silicones and silanes and methods to make quaternary ammonium functional silicones and silanes. Quaternary ammonium functionality may be provided through the use of cationizing agents.

Abstract: A sulfurpentafluoride and substituted silyl ethyne compound that is useful as precursors for a variety of organic compounds are disclosed. At least one of the substituents on the silicon atom is hindered. Also disclosed are high-yielding processes for making the ethyne compound of the present invention.

Abstract: This invention relates to a makeup containing a specific modified silicone obtained by an economical manufacturing method not requiring an esterification catalyst, having a high reaction rate and therefore leaving little unreacted material, and in particular relates to a makeup with good skin adhesion, good retention and excellent emulsion stability. [Composition] A silicone compound represented by the general formula (1): R1aR2bSiO(4-a-b)/2 (in the formula, R1 is at least one substituent group having 1-30 carbon atoms, chosen from alkyaryl, aralkyl, fluorine-substituted alkyl or organopolysiloxanylsilyl, R2 is a carboxylate residue represented by the following general formula (2): R3 is a saturated or unsaturated hydrocarbon group having 2-30 carbon atoms, a is 1.0-2.5, and b is 0.001-1.5.

Abstract: Provided are an aromatic polycarbonate copolymer and a method for producing it. An aromatic dihydroxy compound, at least one member selected from the group consisting of polyorganosiloxanes and aliphatic polyalcohols, and a dicarbonate are prepolymerized under heat to give a polycarbonate prepolymer, and the prepolymer is polymerized in a solid or swollen solid phase in the presence of a quaternary phosphonium salt serving as a catalyst to give an aromatic polycarbonate copolymer. The remaining monomer content, the acetone soluble content (that is, the low-molecular-weight substance content) and the cyclic oligomer content of the copolymer are all reduced, and the terminal hydroxyl fraction thereof is also reduced.

Abstract: The present invention relates to novel complexes of (transition) metals containing ligands having phosphinimine centers bonded to the (transition) metal.

Abstract: Propyl silanes functionalized in 3-position are produced by catalytically reacting allyl compounds of the formula H2C═CH—CH2X with silanes of the formula R2R3R4SiH and using a 3- to 100-fold excess of silane.

Abstract: The invention relates to a process for the production of organosilylalkyl polysulfanes by reacting an organosilylalide alkyl halide and an anhydrous or virtually anhydrous ionic sulfide and elementary sulfur, wherein the elementary sulfur and organosilylalkyl halide are suspended in a polar organic solvent and the ionic sulfide is added to this suspension.

Abstract: The invention relates to a series of novel propoxylated silicone rosin esters. This class of compounds provides unique solubility in organic solvents like iso-paraffin, and despite its lack of water solubility, provides an ability to couple water into anhydrous systems like lipsticks, minimizing the incompatibility that causes syneresis.

Abstract: Disclosed herein are a silane coupling agent and a method of preparing the same useful for a composite organic-inorganic material. The silane coupling agent is represented by the formula of R1R2R3Si—X, wherein R1, R2, and R3, respectively, represent straight or branched alkyl having 4 to 22 carbon atoms, alkoxy, phenyl, phenyl alkoxy, benzyloxy or phenyl alkyl group. The method comprises the steps of: dissolving a vinyl derivative in a solvent under a nitrogen or argon atmosphere; and reacting the resulting solution with an alkoxysilane derivative at a temperature of 20 to 200° C. for 1 to 72 hours in the presence of a metal catalyst. Alternatively, the method comprises the steps of: dissolving alkylmagnesium halide in a solvent under a nitrogen or argon; and reacting the resulting solution with haloalkoxysilane at a temperature of −78° C. to 50° C. for 0.1 to 5 hours.

Abstract: A continuous process for the direct synthesis of silanes of the formula 1 RaSiCl4−a  (1) involves reacting finely divided silicon metal with R—Cl in a fluidized bed, where R is hydrogen, methyl or ethyl and a is 0, 1, 2, 3 or 4, where a product stream comprising gaseous silanes of the formula 1, further gaseous reaction products, unreacted RCl and silicon-containing dust is discharged from the fluidized bed, wherein at least part of the dust is introduced in the form of a suspension in a liquid selected from among liquid silanes of the formula 1, further liquid reaction products and mixtures thereof, into the fluidized bed.

Abstract: A method for producing 1,2-bis(indenyl)ethanes in good yield is described. An agent and its application for isomerizing kinetic EBI to thermodynamic EBI and for isomerizing meso TMS-EBI to rac TMS-EBI are exemplified.

Abstract: A process for the modification of the surface of a silica with a silane compound comprising mixing an aqueous suspension of precipitated silica particulates with a silane compound which is dissolved in an organic solvent, in the presence of a phase transfer catalyst.

Abstract: According to the present invention, a method of preparing a silacycloalkane, comprising the steps of (A) adding a substituted silacycloalkane having the formula: wherein X1 is —F, —Cl, —Br, or —OR1 and X2 is X1 or H, wherein R1 is C1-C8 hydrocarbyl, and n is 1, 2, or 3, to a suspension of lithium aluminum hydride in a glycol diether at a temperature not greater than 50° C. to form a mixture, wherein the glycol diether consists essentially of a linear arrangement of oxyalkylene units having formulae independently selected from —OCH2CH2—, —OCH2CH(CH3)—, and —OCH2CH(CH2CH3)—, and end-groups having the formulae —R2 and —OR2, wherein each R2 is independently selected from C1-C8 alkyl, phenyl, and C1-C8 alkyl-substituted phenyl, provided the glycol diether has a normal boiling point of at least 85° C. and a viscosity not greater than 3000 mm2/s at 25° C.