Abstract: The invention relates to UV-light-absorbing quaternary polysiloxanes in which quaternary groups and UV-absorbing radicals can be mixed independently of one another according to the general formula (I)

Abstract: The invention relates to polysiloxanes containing guanidino groups for which the guanidino groups can be combined arbitrarily with other functional groups on the polysiloxane backbone according to the general formula (I)

Abstract: The invention provides organopolysiloxanes obtained by A) addition reaction of organopolysiloxanes containing SiH groups with vinylsiloxanes in the presence of platinum catalysts or rhodium catalysts, with the proviso that the organopolysiloxanes are present in a molar excess of at least 6 times, relative to the vinylsiloxane, and further reaction of the reaction product in at least one of the following stages: B) transition metal-catalyzed partial or complete addition reaction of the SiH groups with alkenyl and/or alkynyl compounds, C) with the use of a catalyst, partial or complete reaction of the RSiH groups, remaining after above reaction(s), with at least one alcohol from the group of linear or branched, saturated, mono- or polyunsaturated, aromatic, aliphatic-aromatic, optionally halogen atom-containing monoalcohols, polyether monoalcohols, polyester monoalcohols, and amino alcohols.

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