Abstract: The invention relates to the use of compounds of the general formula (VII) as stabilizers in the preparation of polyurethane foams.

Abstract: The invention relates to a process for working up polyethersiloxanes, wherein said polyethersiloxanes are treated with H2O2 and are separated from volatile components by separation methods known per se.

Abstract: The invention relates to a process for the preparation of equilibration products of organosiloxanes by rearrangement of the siloxane bond to a cation exchange resin, the organopolysiloxanes thus obtainable and the use thereof.

Abstract: An aqueous dispersion containing pyrogenically prepared oxide particles of titanium, zinc, iron or cerium with an average particle size, expressed as the median, in the dispersion of less than 250 nm, that the particle sizes of the oxide particles in the dispersion are not distributed symmetrically and the dispersion contains, as a dispersant, at least one compound of the formula (I) and/or a maleic anhydride/acrylate copolymer of the general formula (IIa) and/or a maleate/acrylate copolymer of the general formula (IIb). It is prepared by dispersing a predispersion stream by means of a high energy mill. It can be used in sunscreen formulations.

Abstract: The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.

Abstract: The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.

Abstract: The present invention provides for the use of radiation-curable coating compositions comprising at least one radiation-curable organopolysiloxane having (meth)acrylic ester groups and a photoinitiator, wherein said photoinitiator includes at least one compound of the general formula in which R1 is a linear or branched alkyl radical having 3 to 18 carbon atoms, preferably 4 to 12 carbon atoms, R2 is an alkyl radical having 1 to 4 carbon atoms, preferably hydrogen, R3, R4 are alkyl radicals having 1 to 6 carbon atoms, which may also have been linked to form a 5- or 6-membered carbon ring or one of these radicals may also be hydrogen, and R5 is an alkyl or alkanoyl radical, preferably hydrogen; for preparing adhesive coating materials and producing adhesive coatings.

Abstract: The invention relates to a process for the preparation of equilibration products of organosiloxanes by rearrangement of the siloxane bond to a cation exchange resin, the organopolysiloxanes thus obtainable and the use thereof.

Abstract: Emulsions comprising cationic emulsifiers and optionally coemulsifiers, optionally customary auxiliaries and additives, wherein the cationic emulsifiers used are at least one compound of the general formula (I) in which R1, R2, independently of the other, is at least one radical chosen from the group H, and/or an optionally branched, optionally multiple bond-containing hydrocarbon radical, a hydroxyalkyl, alkoxy, carboxyalkyl radical, an aminoalkyl, alkylaminoalkyl, amidoalkyl, alkylamidoalkyl radical, a homo- or heterocyclic, optionally substituted aliphatic or aromatic hydrocarbon radical having 1 to 60 carbon atoms, preferably 1 to 30 carbon atoms, in particular 12 to 18 carbon atoms, with the proviso that the sum of the carbon atoms from R1+R2 is at least 12 and X? is a salt-forming anion or the hydroxyl anion are provided.

Abstract: An aqueous dispersion containing pyrogenically prepared metal oxide particles and dispersants An aqueous dispersion containing pyrogenically prepared oxide particles of titanium, zinc, iron or cerium with an average particle size, expressed as the median, in the dispersion of less than 250 nm, that the particle sizes of the oxide particles in the dispersion are not distributed symmetrically and the dispersion contains, as a dispersant, at least one compound of the formula (I) and/or a maleic anhydride/acrylate copolymer of the general formula (IIa) and/or a maleate/acrylate copolymer of the general formula (IIb). It is prepared by dispersing a predispersion stream by means of a high energy mill. It can be used in sunscreen formulations.

Abstract: The invention relates to a process for producing metal foam and to a metal body produced using this process. The object is achieved by a process for producing metal foam by adding a blowing agent to a metal melt, wherein the metal melt is introduced into the die cavity of a metal die-casting machine and is foamed using a blowing agent which releases gases and is solid at room temperature.

Abstract: The invention relates to compounds of the general formula (I) in which Ra is an ethylenically unsaturated radical having 1 to 5 carbon atoms and containing at least one carbonyl function, and to their homopolymers and copolymers with compounds of the general formula (II) and to the use thereof in hair conditioning agents.

Abstract: The invention is in the technical field of the crop protection agents, such as herbicides and plant growth regulators, in particular of the herbicides for the selective control of harmful plants in crops of useful plants.

Abstract: The invention relates to a process for producing metal/metal foam composite components, wherein a flat or shaped metal part is introduced into the cavity of a die, the cavity being at least partially delimited by the metal part, and then a mixture comprising a metal melt and a blowing agent which is solid at room temperature is introduced into the cavity, where it is foamed.

Abstract: Branched polyurethanes which are preparable by reacting A) one or more aliphatic and/or aromatic isocyanates having a functionality of at least three with B) from 90.0 to 99.8 eq. % of one or more polyethers of the structure RO(SO)w(BO)x(PO)y(EO)zH ?and C) from 0.2 to 10.0 eq. % of at least one of the compounds from the following group: a. polyethers b. polyether polydimethylsiloxane diols c. polyester polydimethylsiloxane diols d. polydimethylsiloxane diols e. polydimethylsiloxane diamines f. polyether diamines.

Abstract: The invention relates to the use of water-insoluble organopolysiloxane derivatives of the general formula (I) in which the radicals R1 are alkyl radicals, preferably having 1 to 4 carbon atoms or aryl radicals, but at least 80% of the radicals R1 are methyl radicals, and R2 at least once in the molecule has the definition (a) for defoaming aqueous media, especially printing inks and paints.

Abstract: The invention relates to a process for producing shaped metal parts, in particular reduced-weight shaped parts made from metallic materials. In this process, a metal body with a surface which is closed on all sides and a hollow structure in the interior is placed into a die as a core and is then surrounded with a metal melt by casting. The surface region of the metal body has a mean density which is higher than the interior of the metal body by a factor of 1.5 to 20.

Abstract: The present invention relates to polyglycerol partial esers of polyhydroxystearic acid and polyfunctional carboxylic acids which are obtainable by esterification of a polyglycerol mixture with polyhydroxystearic acid where N=1 to 10, preferably 2 to 8, in particular 3 to 5 units and dimer fatty acids which have been obtained by catalytic dimerization of unsaturated fatty acids having 12 to 22 C atoms and have an average functionality of 2 to 3, and/or with aliphatic, linear or branched dicarboxylic acids having a chain length of 2 to 16 C atoms and additionally saturated or unsaturated, linear or branched fatty acids having 6 to 22 C atoms, preferably 12 to 18 C atoms, the degree of esterification of the polyglycerol mixture being between 20 and 75%, preferably 40 to 70%.

Abstract: This invention relates to a method for the production of a sphingoid base according to formula comprising the steps of (1) dissolving a starting compound according to formula III or a salt thereof in a substantially inert solvent, (2) protecting the NH2 group with a NH2 protecting group, (3) activating the C-4 HR3 group for an elimination reaction with the C-5 HR4 group, (4) causing an elimination reaction to take place to form a double bond between the C-4 and C-5 carbon atom, and (5) removing the NH2 protecting group.

Abstract: This invention provides for compositions, which can be crosslinked by radiation to give elastomeric coatings, which comprises: (a) high-molecular weight siloxanes with multiple (meth)acrylate functional groups; and (b) reinforcing fillers selected from the group consisting of silicone resins and silicone dioxide fillers, wherein the siloxanes (a) have the general structure: [R3SiO1/2]a[(Z)nG—Ym—R2SiO1/2]a?[R2SiO2/2]b[(Z)nG—Ym—RSiO2/2]b?[RSiO3/2]c[SiO4/2]d.