Abstract: A process can be used for preparing silicone (meth)acrylates, according to which at least one acetoxysilicone is reacted with at least one hydroxyfunctional (meth)acrylic acid ester. The corresponding silicone (meth)acrylates are useful, and can be used in curable compositions.

Abstract: An organosiloxane which has at least one aromatic radical can be used in release coatings. Compositions, radiation-curing coating materials and release coatings can contain this organosiloxane. A method can be used to produce a release coating using this organosiloxane. The said organosiloxane is notable in that the at least one aromatic radical is bonded via a non-aromatic organic radical to a silicon atom.

Abstract: The invention relates to compositions containing at least one siloxane which comprises ethylenically unsaturated, radically polymerizing groups, and at least one hydrocarbon with ethylenically unsaturated, radically polymerizing groups, which have, when used as a separating coating, an improved barrier effect.

Abstract: A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.

Abstract: Described is a method for synthesizing polymer compounds (P), preferably polysiloxanes, comprising at least one carboxylic ester group, in particular (meth)acrylate-containing polysiloxanes, said method being carried out in the presence of conversion products (U) of metal salts, in particular chromium(III) salts, and conversion products of aldehydes and primary amines.

Abstract: The invention relates to compositions containing at least one siloxane which comprises ethylenically unsaturated, radically polymerizing groups, and at least one hydrocarbon with ethylenically unsaturated, radically polymerizing groups, which have, when used as a separating coating, an improved barrier effect.

Abstract: Described is a method for synthesizing polymer compounds (P), preferably polysiloxanes, comprising at least one carboxylic ester group, in particular (meth)acrylate-containing polysiloxanes, said method being carried out in the presence of conversion products (U) of metal salts, in particular chromium(III) salts, and conversion products of aldehydes and primary amines.

Abstract: The invention relates to a method for producing polymer materials (P), preferably polysiloxanes, having at least one carboxylic acid ester group, in particular (meth)acrylate-containing polysiloxanes, wherein the process is carried out in the presence of reaction products (U) of metal salts, in particular chromium(III) salts, and primary amines.

Abstract: A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.

Abstract: Composite membrane having a separating membrane layer characterized in that a separating membrane layer is produced by curing laterally modified silicone acrylates of the general Formula I

Abstract: Composite membrane having a separating membrane layer characterized in that a separating membrane layer is produced by curing laterally modified silicone acrylates of the general Formula I

Abstract: The invention provides radiation-curing coating materials composed of at least one silicone resin modified with vinylalkoxysilane and vinylcyclohexene oxide and of at least one epoxy-functionalized polysiloxane and of a cationic photoinitiator. Furthermore, coinitiators may also be a constituent of the mixture, in order to obtain increased reactivity of the formulation.

Abstract: The invention relates to a durably homogeneous, low-viscosity, radiation-curable coating material comprising a) x (meth)acrylated polysiloxanes and if desired b) y (meth)acrylated organic compounds and c) at least one particulate emulsifier having an average particle size of <1000 nm in at least one dimension, with the proviso that x?1, y?0, the sum of x+y?2 and the mixture of components a) and b) alone is not durably homogeneous.

Abstract: The invention relates to a durably homogeneous, low-viscosity, radiation-curable coating material comprising a) x (meth)acrylated polysiloxanes and if desired b) y (meth)acrylated organic compounds and c) at least one particulate emulsifier having an average particle size of <1000 nm in at least one dimension, with the proviso that x?1, y?0, the sum of x+y?2 and the mixture of components a) and b) alone is not durably homogeneous.

Abstract: The present invention accordingly provides new organopolysiloxanes having (meth)acrylic ester groups attached pendent and terminally or only pendent via SiOC groups, of the general average formula (I) and also provides a process for preparing the compounds by reacting polysiloxanes containing SiH groups with (meth)acrylated monoalcohols and/or (meth)acrylated polyalcohols using Lewis-acid catalysts or catalysts comprising an acid and salts thereof.

Abstract: The invention provides radiation-curing coating materials composed of at least one silicone resin modified with vinylalkoxysilane and vinylcyclohexene oxide and of at least one epoxy-functionalized polysiloxane and of a cationic photoinitiator. Furthermore, coinitiators may also be a constituent of the mixture, in order to obtain increased reactivity of the formulation.

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 a process for producing siloxane-containing release coatings which comprises curing a siloxane-containing coating material by irradiation with microwaves.

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 provides a method of improving the adhesion of radiation-cured adhesive silicone release coatings on films or polymer-coated paper through use of adhesion additives, which method comprises using, as adhesion additives, epoxy-functional silanes of the general formula (III)