Abstract: The present invention provides a polymerizable organosilicon nanocapsule, which includes: a nanoscale core A, which includes: at least one particle comprising at least one oxide or mixed oxide, KA-O, of at least one metal or semimetal selected from the group including main groups 2 to 6 of the Periodic Table, transition groups 1 to 8 of the Periodic Table, lanthanides, and mixtures thereof; and an organosilicon shell B, which includes: at least one organosilicon compound having the formula (Ia): (Si?O—)xSi—R ??(Ia) wherein R is a vinyl or allyl group; wherein x is a number from 0 to 20; wherein remaining free valences of Si are each independently (KA-O)—, SiO— or -Z; wherein remaining free valences of Si? are each independently (KA-O)—, SiO—, -R, or -Z; wherein the Z's are each independently hydroxyl or alkoxy radicals; and wherein each Si and Si? in the shell B have not more than one R group attatched thereto.

Abstract: Siloxane oligomers of the general formula I or II wherein at least one functionalized alkyl group is present per oligomer molecule. The siloxane oligomers are produced by oligomerization of halogenalkyltrihalogensilanes, and co-optionally co-oligomerized with (C1-C18)-alkyl-, phenyl-, aryl- or aralkyl-trihalogensilanes and/or silicon tetrachloride, in the presence of alcohol and water, following which the halogenalkyl function is optionally modified in a further step. The siloxane oligomers can be used as coupling agents in rubber mixtures or as building preservation agents.

Abstract: The present invention relates to a composition containing silico-organic nanohybrid and/or microhybrid capsules for scratch-resistant and/or abrasion-resistant coatings, wherein the silico-organic nanohybrid and/or microhybrid system includes one or more small metal oxide cores A and a substantially complete, silico-organic shell B, and the composition can be obtained by a reaction performed in situ, in a synthetic resin or in a synthetic-resin precursor compound, between metal oxide particles (KA-O) and at least one organofunctional silicon compound which contains an organofunctional group and at least one hydrolyzable group or at least one hydroxy group. The present invention also relates to the use of such compositions as the base for lacquers for producing a scratch-resistant and abrasion-resistant coating on a substrate as well as articles provided with corresponding scratch-resistant as well as abrasion-resistant coatings.

Abstract: Siloxane oligomers of the general formula I or II 1

Abstract: An apparatus for continuously preparing substantially halogen-free, in particular chlorine-free, trialkoxysilanes of the general formula I (RO)3SiH  (I) in which R is an alkyl group having from 1 to 6 carbon atoms, has a main reactor unit (1), at least one metering unit (2, 3, 4) for liquids and/or suspensions, located upstream of the main reactor, and at least one metering unit (5) for gaseous and/or vaporous substances, and also a product workup unit (6) located downstream of the main reactor. A process for preparing substantially halogen-free trialkoxysilanes of the general formula I in which silicon is reacted with alcohols in an inert solvent utilizes at least one organocopper compound catalyst.

Abstract: An alcoholic fluoroalkyl-functional group containing organosiloxane based composition prepared is prepared by the controlled hydrolysis of at least one fluoroalkyl-functional group containing organosilane of formula I: R1—Y—(CH2)2SiHx(R2)y(OR)3−x−y  (I), in which R1 is a mono, oligo- or perfluorinated alkyl group having 1-9 C atoms or a mono-, oligo- or perfluorinated aryl group, Y is a CH2, O or S group, R2 and R are each independently a linear, branched or cyclic alkyl group having 1-8 C atoms or an aryl group and x=0, 1 or 2 and y=0, 1 or 2, where (x+y)≦2, at a temperature in the range of 0-120° C. over a period of 0.5-24 hours and with thorough mixing in an w alcoholic medium which contains water and a weak mono- or polybasic acid or a weak base or a weak mono- or polybasic acid and a weak base or an acid or basic salt, the water employed and the alkoxysilane employed being in a molar ratio of 2-500:1.

Abstract: Organosilicon nano/microhybrid systems or microhybrid systems having nanoscale and/or microscale oxide particles (KA—O), and an organosilicon shell with at least one organosilicon constituent of the general formula Ia wherein the organosilicon constituent of the shell B is attached to the oxide particles via one or more covalent linkages of formula Ib A process for preparing a composition comprising organosilicon nano/microhybrid systems or microhybrid systems directly in a synthetic resin composition allows in situ preparation of a curable resin. The compositions may be used as coating materials for producing scratch resistant and abrasion resistant coatings.

Abstract: A composition which retains a flash point of more than 21° C. even on storage and is obtainable by mixing and reacting (i) from 50 to 70% by weight of at least one alkyltrialkoxysilane, (ii) from 10 to 25% by weight of at least one alkoxysiloxane and/or at least one tetraalkoxysilane, (iii) from 15 to 25% by weight of at least one aqueous silica sol, (iv) from 0.1 to 5% by weight of at least one acid, and (v) from 0.1 to 60% by weight of at least one alcohol and/or glycol, the sum of the above components being not more than 100% by weight, by introducing components (i) and (ii) and also, if desired, a fraction of component (v) as an initial charge, adding component (iii), adjusting the mixture to a temperature in the range from −5 to 10° C.

Abstract: The present invention provides an organosilicon nanocapsule, which includes: a nanoscale core A, which includes: at least one particle including at least one oxide or mixed oxide, KA—O, of at least one metal or semimetal selected from the group including main groups 2 to 6 of the Periodic Table, transition groups 1 to 8 of the Periodic Table, lanthanides, and mixtures thereof; and an organosilicon shell B, which includes: at least one organosilicon compound having the formula (Ia): (Si′O—)xSi—R  (Ia) wherein R is a linear, branched, cyclic or substituted alkyl group having from 1 to 50 carbon atoms; wherein x is a number from 0 to 20; wherein remaining free valences of Si are each independently (KA—O)—, SiO— or —Z; wherein remaining free valences of Si′ are each independently (KA—O)—, SiO—, —R, or —Z; wherein the Z's are each independently hydroxyl or alkoxy radicals; and wherein each Si and Si′

Abstract: The present invention relates to an air-drying silane coating composition containing an epoxy or acrylic resin, an optional silicic ester or alkyl silicate, an aminoalkylsilane component, an optional organoalkyoxysilane, and possible auxiliaries; methods of use thereof, and articles and substrates coated accordingly.

Abstract: A composition which comprises a mixture of water-soluble, amino-functional silicon compounds which are essentially free from alkoxy groups, water, optionally a content of alcohol and optionally a content of acid, the composition comprising silicon compounds of the general formula I: NH2[CH2)2NH]x(CH2)3SiO1.5  (I) in which x is 0, 1 or 2, and of the general formula II: (SiO1.5(CH2)3[NH(CH2)2]yNH[(CH2)2NH]x(CH2)3Si)1.5  (II) in which y and z are 0, 1 or 2 and are identical or different. The compositions are obtainable by mixing corresponding aminoalkoxy silanes, hydrolyzing the mixture and removing the hydrolysis alcohol formed as a result. The invention furthermore relates to a process for the preparation of the compositions and to their use in a wide variety of applications.

Abstract: A composition which retains a flash point of more than 21° C.

Abstract: The invention relates to a process for preparing crosslinkable polymers containing silane groups having at least one hydrolyzable radical by free-radical-initiated grafting of the base polymers with an olefinically unsaturated silane having at least one hydrolyzable radical, wherein the grafting is carried out in the presence of (a) an alkylsilane of the formula I, R1(SiR2nX3−n)m,  (I)  where R1 is a monovalent hydrocarbon radical having from 1 to 33 carbon atoms or a divalent hydrocarbon radical having from 4 to 24 carbon atoms, R2 is a hydrocarbon radical having from 1 to 10 carbon atoms, X are identical or different hydrolyzable radicals, n is 0, 1 or 2 and m is 1 or 2 and/or (b) a fluoroalkylsilane of the formula R3xSiR4yXz,  (II)  where R3 is a fluoroalkyl radical, R4 is an alkyl radical and X is a hydrolyzable radical, x is an integer from 1 to 3, y is 0, 1 or 2 and z is an integer from 1 to 3,  with the proviso that the sum x+y+z&equa

Abstract: Siloxane oligomers of the general formula I or II 1

Abstract: The present invention relates to a composition containing silico-organic nanohybrid and/or microhybrid capsules for scratch-resistant and/or abrasion-resistant coatings, wherein the silico-organic nanohybrid and/or microhybrid system includes one or more small metal oxide cores A and a substantially complete, silico-organic shell B, and the composition can be obtained by a reaction performed in situ, in a synthetic resin or in a synthetic-resin precursor compound, between metal oxide particles (KA—O) and at least one organofunctional silicon compound which contains an organofunctional group and at least one hydrolyzable group or at least one hydroxy group. The present invention also relates to the use of such compositions as the base for lacquers for producing a scratch-resistant and abrasion-resistant coating on a substrate as well as articles provided with corresponding scratch-resistant as well as abrasion-resistant coatings.

Abstract: Fillers surface-modified by treatment with an organosilane- and/or organosiloxane-containing agent for preparing filled polyamide compositions.

Abstract: Organosilicon nano/microhybrid systems or microhybrid systems having nanoscale and/or microscale oxide particles (KA—O), and an organosilicon shell with at least one organosilicon constituent of the general formula Ia 1

Abstract: An apparatus for continuously preparing substantially halogen-free, in particular chlorine-free, trialkoxysilanes of the general formula I

Abstract: An organosiloxane which has at least one triamino group of formula I: [NHx(CH2)aNHy(CH2)bNHz]—  (I) which is bonded to at least one silicon atom via at least one N-bonded alkylene group having 1 to 4 C atoms, a and b are identical or different and are each an integer ranging from 1 to 6, x is 0 or 1 or 2, y is 0 or 1, z is 0 or 1 or 2, with the proviso that (x+y+z)≦4, and at least one Si—C-bonded fluoroalkyl group of formula II: F3C(CF2)r(CH2)s—  (II)  wherein r is 0 or an integer ranging from 1 to 18 and s is 0 or 2.

Abstract: A process for modifying the functionality of organofunctional substrate surfaces by first reacting the organofunctional group of a silicon compound A with the surface of a substrate, where the silicon compound A bears at least one organofunctional group and, as other groups, bears at least one chloro, alkoxy, carboxy or hydroxyl group, then applying to the pretreated substrate an organofunctional silicon compound B, where the silicon compounds A and B are identical or different and the silicon compound B bears at least one chloro, alkoxy, carboxy or hydroxyl group. The process produces surface-modified substrates for other applications.