Abstract: Novel organosilicon compounds containing organooxysilyl and sulfenamide groups in the molecule are provided. They are useful as interfacial binders between inorganic materials and organic materials, adhesion modifiers for organic resins and rubber, primers, etc.

Abstract: A method of making .beta.-diketo functional silanes and siloxanes in which the acetoacetic ester moiety, i.e., .beta.-diketo CH.sub.3 COCH.sub.2 CO--, is attached to the oxygen or nitrogen atoms of C--OH or C--NH.sub.2 containing functional silanes or siloxanes, by reacting the organosilicon nucleophile with diketene, as illustrated below for the C--OH containing functional silane. ##STR1## The products can be formed into curable compositions, or used as additives in durable textile treatments, polyurethane foams, and hair care applications.

Abstract: A direct fixation of NO.sub.2 and N.sub.2 O.sub.4 at room temperature and atmospheric pressure is described using bis(diorganoamino)magnesium compounds formed from reactions between donor-solvent free diorganomagnesium compounds and primary or secondary amines, yielding new compositions of matter having the general formulas [(R.sub.2 N).sub.i (R.sub.2 NN.sub.x O.sub.y)jMg].sub.m and [(R.sub.2 N).sub.i (R.sub.2 NN.sub.x O.sub.y).sub.j (N.sub.x O.sub.y).sub.k Mg].sub.m. Methods are also described to convert these new compositions of matter into useful organic compounds and nitrogen gas.

Abstract: The use of linear or cyclic silicon compounds containing at least one chromophoric group of quinone or azo type as direct dyes in dye compositions intended for dyeing human keratin fibres and in particular the hair. The invention also relates to novel silicon compounds and dye compositions containing them, as well as to the corresponding direct dyeing process.

Abstract: A method is provided for improving alkylhalosilane selectivity in the direct method for making alkylhalosilane. There is introduced into the alkylhalosilane reactor, an effective amount of an organophosphine, such as trimethylphosphine, to enhance the formation of dialkylhalosilane during the direct reaction of alkylhalide and particulated silicon-copper contact mass.

Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.

Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.

Abstract: Chemically stable, perfluorinated, linear or cyclic polyorganosiloxanes (POS), and a process for the preparation thereof. Antifoams, agents for lowering surface tension, dirt repellents, antiadhesives, lubricants, oleophobic and/or hydrophobic agents, coatings and other compositions containing the perfluorinated POS are disclosed.

Abstract: The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris-(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane; methoxy tris-(methyl isobutyl ketoximino) silane; ethyl tris-(methyl isobutyl ketoximino) silane; ethoxy tris-(methyl isobutyl ketoximino) silane; methoxy tris-(methyl amyl ketoximino) silane; ethyl tris-(methyl amyl ketoximino) silane; ethoxy-tris-(methyl amyl ketoximino) silane; and mixtures thereof.

Abstract: A method for silating unsaturated monomers by contacting a system having at least one SiH group, an unsaturated monomer, a transition metal catalyst and a free radical polymerization inhibitor is described.

Abstract: This invention relates to substituted silyl alkylene amines, to the intermediates and processes useful for their preparation, to their pharmacological use as MAO-B inhibitors and to their end-use application in the treatment of Parkinson's Disease and senile dementia of Alzheimer's type.

Abstract: Fluorinated silylated aromatic compounds, their intermediates, methods of use in treating diseases associated with deficiencies of cholinergic transmission in the central nervous system and methods for their preparation are disclosed.

Abstract: The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris-(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane; methoxy tris-(methyl isobutyl ketoximino) silane; ethyl tris-(methyl isobutyl ketoximino) silane; ethoxy tris-(methyl isobutyl ketoximino) silane; methoxy tris-(methyl amyl ketoximino) silane; ethyl tris-(methyl amyl ketoximino) silane; ethoxy tris-(methyl amyl ketoximino) silane; and mixtures thereof.

Abstract: This invention includes di- and tri(alkoxysilylalkyl)- or haloalkoxysilylalkylcyclic pentanes, which may have substituents thereon, including vinyl groups, and their use as waterproofing agents, as crosslinking agents in room temperature vulcanizing silicone caulks, in coating compositions and as surface treatments. The cyclic hydrocarbons are pentane (C.sub.s). The silane groups are attached to the ring through an alkyl group, which may have substituents thereon. Multiple silane groups may be attached to the ring. The silanes may have the standard substituents thereon, including alkoxy and halogens.The specific silanes contemplated herein have the following formula:R.sub.a X.sub.3-a Si(CR'.sub.2).sub.n !.sub.b cycloC.sub.5 R".sub.

Abstract: There is disclosed an organopolysiloxane having bifunctional biphenyl groups of the formula I ##STR1## wherein Q is selected from the group consisting of a nitro group, a substituted amino group and an unsubstituted amino group, Z is an organopolysiloxane group represented by the formula II ##STR2## in which R.sup.1 is a divalent organic group having at least 2 carbon atoms, R.sup.2 through R.sup.6 are the same or different monovalent organic groups, n is an integer having a value of at least 1 and m is 0 or 1. The above organopolysiloxane may be reacted with an aromatic tetracarboxylic acid dianhydride and, optionally, with an aromatic diamine to obtain a polyamide acid, which may then be subjected to a thermal imidization step to provide a polyimide having repeating units shown by the formulas VI and VII ##STR3## wherein A.sup.1 is a tetravalent aromatic group, A.sup.3 is a divalent aromatic group and A.sup.

Abstract: A fluorine-containing organosilicon compound represented by the following general formula (1): ##STR1## wherein Rf represents a perfluoroalkyl group, a perfluorooxyalkyl group, a perfluoroalkylene group, or a perfluorooxyalkylene group, A represents a bivalent organic group, R.sup.1 represents an unsubstituted or substituted monovalent hydrocarbon group, X represents a hydrolyzable group, Y is 1 in the case where the above group Rf represents a perfluoroalkyl group or a perfluorooxyalkyl group or Y is 2 in the case where the above group Rf represents a perfluoroalkylene group or a perfluorooxyalkylene group, m is an integer of 0 to 2, and n is an integer of 1 to 3, with m+n being 3 or less. Since this compound has an acryloyloxy group(s), the compound when irradiated with ultraviolet light can be easily cured within a short period of time, for example, within about 1 to 2 min in the presence of a photopolymerization initiator.

Abstract: A method for the removal and concentration of desired ions such as Pd(II), Ru(III), Pd(IV), Au(III), Au(I), Ag(I), and Hg(II) from a multiple ion source solution which may contain larger concentrations of other undesired ions including H.sup.+ comprises bringing the source solution into contact with a compound comprising a sulfur and electron withdrawing group containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The sulfur and electron withdrawing group containing ligand portion(s) of the compound has an affinity for the desired ions to form a complex thereby removing the desired ions from the source solution. The desired ions are removed from the compound by contacting the compound with a much smaller volume of a receiving solution having a greater affinity for the desired ions than does the sulfur and electron withdrawing group containing ligand portion of the compound.

Abstract: Novel perfluoroalkylsulphonamidoalkoxysilanes suitable as hydrophobing and oleophobing agents for textiles and stone materials of the formula ##STR1## wherein R.sup.f represents a monovalent perfluoroalkyl group with 4 to 20 carbon atoms,R represents a monovalent organic group which is inert towards isocyanate groups at temperatures below 100.degree. C.,X,Y and Z represent identical or different organic groups which are inert towards isocyanate groups at temperatures below 100.degree. C., with the proviso that at least one of these groups is an alkoxy group,a is 1 or 2,b is 0 or 1,c is 3-a-b, but at least 1, andn is an integer from 2 to 4.and a process for their preparation.

Abstract: The invention relates to the following novel silanes: methyl vinyl bis(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris-(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane methoxy tris-(methyl isobutyl ketoximino) silane; ethyl tris-(methyl isobutyl ketoximino) silane; ethoxy tris-(methyl isobutyl ketoximino) silane; methoxy tris-(methyl amyl ketoximino) silane; ethyl tris-(methyl amyl ketoximino) silane; ethoxy tris-(methyl amyl ketoximino) silane; and mixtures thereof.

Abstract: The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris-(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane and mixtures thereof. These compounds are useful as intermediates in one-component room-temperature-curing sealant, adhesive and coating applications among other silicone polymer applications.

Abstract: The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane and mixtures thereof. These compounds are useful as intermediates in one-component room-temperature-curing sealant, adhesive and coating applications among other silicone polymer applications.

Abstract: A sealant made from a room temperature curing polydimethylsiloxane composition has a siloxaphobic surface layer at the air-sealant interface where this layer is a fluorocarbon compound and a drying oil oxidation product. Elastomeric compositions made from polydimethylsiloxanes having both low reactivity endgroups and high reactivity endgroups and a siloxaphobic agent of fluorocarbon alcohol or a reaction product of the fluorocarbon alcohol and a hydrolyzable silane, are particularly useful for sealing buildings because they can withstand the expansions and contractions. One siloxaphobic agent is the reaction product between a fluorocarbon alcohol and a methyltri(methylethylketoximo)silane and the formula of one of the reaction product compounds is ##STR1## wherein x has an average value of at least 6.

Abstract: Siloxane macromonomers are disclosed which can be copolymerized with hydrophilic monomers or hydrophobic monomers to prepare polymeric materials useful as biomedical devices. The copolymers made from hydrophilic monomers exhibit good oxygen permeability and are particularly suitable for use in contact lenses.

Abstract: The present invention relates to cyclic siloxanes which have at least one group of formula (1) bonded to a silicon atom--(CH.sub.2).sub.x --R"--[--L--A--].sub.y --(L).sub.z --T (1),in which x is an integer having a value of at least 2, preferably having a value of from 2 to 10, R" is a chemical bond or a divalent radical of the formula --COO--, --OOC--, --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --N.dbd.N--, --N.dbd.N, --N.dbd.CH--, --CH.dbd.N or --Si(R).sub.

Abstract: An efficient and safe method is proposed for the preparation of an oximesilane compound having a group of the general formula --O--N.dbd.CR.sup.2 R.sup.3, in which R.sup.2 and R.sup.3 are each a hydrogen atom or a monovalent hydrocarbon group, bonded to the silicon atom. The method consists of successive steps of which the first is for the reaction of a chlorosilane compound with ammonia and the second is for the reaction of the reaction mixture coming from the first step with an oxime compound to introduce the oxime groups as bonded to the silicon atom. Different from conventional methods in which formation of an explosive compound such as hydrochloride of an organic base or oxime compound is unavoidable, the inventive method does not involve formation of such an explosive by-product so that the desired oximesilane compound can be obtained without the danger of explosion.

Abstract: The present invention relates to cyclic siloxanes which have at least one group of formula (1) bonded to a silicon atom--(CH.sub.2).sub.x --R"--[--L--A--].sub.y --(L).sub.z --T (1),in which x is an integer having a value of at least 2, preferably having a value of from 2 to 10, R" is a chemical bond or a divalent radical of the formula --COO--, --OOC--, --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --N.dbd.N--, --N.dbd.N(O)--, --CH.dbd.N--, --N.dbd.CH--, --N.dbd.N--, --N.dbd.N(O)--, --N.dbd.CH--, --CH.dbd.N--, or --Si(R).sub.

Abstract: Benzocyclobutene-1,2-dichlorides, -bromides and -iodides which are substituted in the benzene ring are accessible in good yields and short reaction times by reacting substituted 1,2-(dichloromethyl or dibromomethyl)-benzenes with NaI in acetonitrile as the solvent. They can be used together with dienophils, for example 1,4-quinones, in Diels-Alder reactions.

Abstract: Novel organosilicon compounds having a second order hyperpolarizability coefficient .beta. greater than zero, well suited for use in the field of nonlinear optics, e.g., in telecommunication devices, have the general formula: ##STR1## which n is an integer ranging from 1 to 20; R.sub.1 is an electron donating group; R.sub.2 is an electron accepting group; R.sub.3 is an alkyl radical having from 1 to 8 carbon atoms, a hydrogen atom, an aryl radical, or an R.sub.1 or R.sub.2 radical; and R.sub.4 is an alkyl radical having from 1 to 8 carbon atoms, a hydrogen atom, an aryl radical, or an R.sub.1 radical when R.sub.3 is not an R.sub.2 radical or an R.sub.2 radical when R.sub.3 is not an R.sub.1 radical.

Abstract: Organic silicon compounds of formula (1) are novel: ##STR1## In the formula, R.sup.1, R.sup.2 and R.sup.3 are monovalent C.sub.1-8 hydrocarbon group, R.sup.4 is a C.sub.1-6 alkyl group, R.sup.5 is a C.sub.2-6 alkylene group or a C.sub.2-6 alkylene group containing at least one --C--O--C-- linkage, Rf is a C.sub.1-12 perfluoroalkylene or perfluorocyclo-alkylene group or a C.sub.1-12 perfluoroalkylene or perfluorocycloalkylene group containing at least one --C--O--C-- linkage, and n is 1, 2 or 3. The organic silicon compounds are useful source materials for the manufacture of fluorinated polysiloxanes having solvent resistance, chemical resistance and release property.

Abstract: Organic silicon compounds of formula (1) are novel. ##STR1## In the formula, wherein R.sup.1 and R.sup.2 are monovalent C.sub.1-8 hydrocarbon group, R.sup.3 is a C.sub.2-6 alkylene group or a C.sub.2-6 alkylene group containing at least one --C--O--C-- linkage, R.sup.4 is a C.sub.1-6 alkyl group, Rf is a C.sub.1-15 perfluoroalkyl or perfluorocycloalkyl group or a C.sub.1-20 perfluoroalkyl or perfluorocycloalkyl group containing at least one --C--O--C-- linkage, and n=0, 1 or 2, m=1 or 2, and k=2, 3 or 4. The organic silicon compounds are useful source materials for the manufacture of fluorinated polysiloxanes having solvent resistance, chemical resistance and release property.

Abstract: An improvement is proposed for minimizing coloration of an oximesilane synthesized by the reaction of a chlorosilane such as vinyl trichlorosilane and an oxime compound such as methyl ethyl ketone oxime in the presence of a nitrogen-containing basic compound as an acceptor of the hydrogen chloride followed by the removal of the precipitates of the hydrogen chloride salt of the base and distillation. The improvement comprises conducting the distillation of the filtrate after removal of the precipitates of salt is performed in the presence of a nitrogen-containing basic compound such as ammonia in the filtrate, for example, by blowing ammonia gas into the liquid under distillation. An already colored oximesilane product also can be decolorized by blowing ammonia gas thereinto.

Abstract: The derivatives of the formula: ##STR1## wherein: R.sub.1 is H or C.sub.1 -C.sub.4 alkyl;X is an oxygen atom, a methylene group or a --CH.dbd.CH-- group;n is 1 or 2 when X is an oxygen atom or a methylene group and 0 or 1 when X is a --CH.dbd.CH-- group;D is an oxygen atom or a NOR group, wherein R.dbd.H or C.sub.1 -C.sub.4 alkyl;R.sub.3 is a C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.7 cycloalkyl, phenyl or benzyl group;each of R.sub.2 and R'.sub.2 independently is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.7 cycloalkyl, phenyl or benzyl group; andR'.sub.2 and R.sub.3 may further form together a --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 -- chain,useful as drugs.

Abstract: The instant invention relates to polysiloxane polyoxyalkylene compounds containing at least one perfluoroalkyl terminated polyoxyalkylene group. These compounds are useful as surfactants and improve or impart properties such as wetting, penetration, spreading, levelling, foam stability, flow properties, dispersion properties and oil and water repellency.

Abstract: Fluorescent organopolysiloxane compounds which bear two or more reactive silicon-bonded sites are useful as durable markers in curable silicone compositions. Having more than one reactive site the compounds participate in the curing reaction of the curable composition and thus do not adversely affect its curing behavior. The resulting fluorescent curable compositions are particularly useful in the preparation of adhesive-release coatings.

Abstract: This application relates to novel compositions of matter generally classified as alkanolaminofunctional siloxanes. These compositions have a structure selected from the group consisting of: ##STR1## wherein x represents an integer of from 1 to 100; y represents an integer of from 1 to 10; R.sup.1 represents a lower alkyl group; and M is an alkanolamino group selected from the group consisting of:--(CH.sub.2).sub.a N(R.sup.2)--(CH.sub.2).sub.b OR.sup.3 ; (c)and--(CH.sub.2).sub.a N.sup.+ (R.sup.2)(R.sup.4)--(CH.sub.2).sub.b OR.sup.3 Z.sup.-1 (d)Compositions of this invention exhibit utility in altering the surface activity of water.

Abstract: Ketoximosilanes are prepared by reacting alkyl- or alkenyl-acetoxysilanes with ketoximes in the presence of ammonia. The ketoximosilane reaction products are useful as cross-linking agents for organopolysiloxane compositions.

Abstract: An improved process for preparing trialkylsilyl ester and acid halide derivatives of carboxylic acids is provided along with novel trialkylsilyl ester intermediates of 2-(2-furyl)-2-methoximinoacetic acid.

Abstract: Difunctional halo silicon amide compounds are prepared by cleaving the nitrogen-silicon bond in a nitrogen-silicon heterocycle with a reactive halide. The reaction is straight forward with no intermediates or byproducts. The halo functionality is capable of capping any SiOH group. When the other functionality is an acrylamide, the capped entity may be polymerized or crosslinked by free radical initiators of the acrylamide functionality thereby producing useful products such as paper release coatings and photoresists.

Abstract: Substituted benzophenones are disclosed having the following formula ##STR1## where R.sub.A and R.sub.B are each independently COOH, C.sub.1 to C.sub.12 linear or branched alkyl or taken together to form an anhydride ring, R is nitro or amino unsubstituted or substituted with at least one C.sub.1 to C.sub.6 linear or branched alkyl, phenyl or substituted phenyl, the substituents being one or more C.sub.1 to C.sub.6 linear or branched alkyl or C.sub.6 to C.sub.10 aryl, Y and Y' are the same or different and are a chemical bond ##STR2## and m is 0 or 1 with the proviso that both R.sub.A and R.sub.B can not be hydrogen.Processes to produce these benzophenones are also disclosed.

Abstract: N-triorganosilylsulfonimidoyl halides are prepared using a novel series of reactions from compounds of hexavalent sulfur selected from amides, chlorides and anhydrides of organosulfonic acids. More specifically, the present method relates to the reaction of an N-triorganosilyl- or an N,N-bis(triorganosilyl)-sulfonamide with a triorganodihalophosphorane to form the corresponding sulfonimidoyl halide.

Abstract: Difunctional halo silicon amide compounds are prepared by cleaving the nitrogen-silicon bond in a nitrogen-silicon heterocycle with a reactive halide. The reaction is straight forward with no intermediates or byproducts. The halo functionality is capable of capping any SiOH group. When the other functionality is an acrylamide, the capped entity may be polymerized or crosslinked by free radical initiators of the acrylamide functionality thereby producing useful products such as paper release coatings and photoresists.

Abstract: Vicinal substituted C.sub.4 -C.sub.24 carboxylic acid derivatives and their silane and siloxane derivatives as well as polymers and copolymers of silane and siloxane derivatives are disclosed. The compounds are useful as coupling agents, emulsifiers and demulsifiers, textile processing aids, and cosmetic additives.

Abstract: Described is a process for producing oximosilanes having the general formula (I)R.sup.1 a Si(O--N.dbd.Cr.sup.2 R.sup.3).sub.4-a (I)wherein R.sub.1 represents a straight-chain or branched alkyl residue having between 1 and 18 carbon atomns, a straight-chain or branched alkenyl residue having between 2 and 18 carbon atoms, an aryl or aralkyl residue optionally substituted by halogens, nitro groups, amino groups and/or alkyl residues having between 1 and 4 carbon atoms, or a straight-chain or branched alkoxy-residue having between 1 and 8 carbon atoms, a is an integer of 0 to 3, and R.sup.2 and R.sup.3, independently of each other, represent straight-chain or branched alkyl residues having between 1 and 18 atoms, optionally substituted by halogens, nitro groups, amino groups and/or alkyl residues having between 1 and 4 carbon atoms, by reacting an acyloxisilane with an oxime in molar excess, characterized in that an acyloxy-silane of general formula (II)R.sup.1 a Si(OCOR.sup.4).sub.4-a (II)wherein R.sup.

Abstract: This invention comprises a process for the production of unsymmetrical olefins from prochiral symmetrical ketones by addition of lithiosulfoximine from n-butyllithium and N-substituted S-methyl-S-phenyl-sulfoximine derivatives and then reaction with n-butyllithium/trimethychlorosilane.

Abstract: An organosilicon compound having general formula (I) ##STR1## wherein R.sup.1 represents fluorine; l is an integer of 1 to 5; R.sup.2 represents a lower alkyl group, a lower unsaturated alkyl group or an aromatic group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represent hydrogen, halogen, an alkyl group, an aryl group, a nitro group, a cyano group, and an alkoxyl group, which may be the same or different; m is an integer of 0 to 2, when m is 2, each R.sup.2 may be the same or different; and n is an integer of 1 to 3, provided that m+n is not more than 3 (m+n.ltoreq.3), and a photopolymerizable epoxy resin composition prepared by mixing an epoxy resin component, the above photodecomposing organosilicon compound, and an aluminum compound are disclosed.

Abstract: Ketoximosilanes are prepared by reacting alkyl- or alkenyl-acetoxysilanes with ketoximes in the presence of an amine, followed by isolation of the ketoximosilanes by separation of the liquid phases. The ketoximosilane products are useful as cross-linking agents for organopolysiloxane compositions.

Abstract: A method is provided for silylating aromatic acylhalide by effecting reaction between an aromatic acylhalide and halogenated polysilane in the presence of an effective amount of a supported transition metal catalyst, such as a transition metal catalyst supported by an organic or inorganic substrate.

Abstract: The oximinosilanes, e.g., methyltris(methyl ethyl ketoximo)silane and vinyltris(methyl ethyl ketoximo)silane, are improvedly produced by continuously charging a halogenated silane, an oxime, ammonia gas and an organic solvent medium into a stirred reaction zone, removing precipitated ammonium halide from the medium of reaction), and recovering product oximinosilane from the organic solvent phase, e.g., by distillation.

Abstract: The invention relates to modified silica, substituted with a variety of substituents. There is provided a product termed primary hydroxyl silica where there are attached to the silica substituents bearing a single hydroxyl group. Furthermore there are provided a wide variety of derivatives of such hydroxy-silica, which are of value in affinity chromatography and for various other uses. The products combine the thermal and mechanical stability of the silica used as carrier with the useful properties of the substituents.

Abstract: In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response.Illustrative of an invention organopolysiloxane is a polymer corresponding to the formula: ##STR1## where n is an integer of at least 5.