Abstract: A defoamer or anti-foam formulation and a process for preparing the same. The process includes in a first step, preparing branched organopolysiloxanes (A) by irradiating organopolysiloxanes (X) of the formula (1) R13-a(R2O)aSi—[OSiR32]n—OSi(OR2)aR13-a ??(1). Where with high-energy radiation, the viscosity of the organopolysiloxanes (A) is at least 40% higher than the viscosity of the organopolysiloxanes (X). In a second step, the branched organopolysiloxanes (A) are treated with a filler (B) which is selected from precipitated and/or fumed silicas, and organopolysiloxane resins (C).

Abstract: Curable silicone rubber compositions of high viscosity can be ballistically printed if the melt flow index is within a defined shear thinning range and the viscosity is also within a defined range.

Abstract: Complex shaped bodies of silicone are produced by ballistic 3D DOD printing by employing a silicone resin-based composition curable by hydrosilylation, which exhibits a high shear thinning behavior and a rapid viscosity recovery rate alter removal of shear.

Abstract: Silicon elastomer articles are prepared by a 3-D printing process by depositing droplets of high viscosity curable silicone onto a substrate layer by layer from independently spatially controllable nozzles and irradiation with independently spatially controllable electromagnetic energy.

Abstract: 3D printing of curable silicone cam positions is made possible by employing a mixture of Si—H-functional silicon compounds and silicon compounds bearing aliphatically unsaturated groups, a hydrosilylation catalyst, and a combination of a reinforcing filler and a rheological agent containing polar groups, exhibiting shear thinning behavior.

Abstract: A device for the dry cleansing of surfaces to remove particulates contains triboelectrically chargeable component(s) of an organic polymer material containing uniformly distributed finely divided silicone polymer particles.

Abstract: Complex shaped bodies of silicone are produced by ballistic 3D DOD printing by employing a silicone resin-based composition curable by hydrosilylation, which exhibits a high shear thinning behavior and a rapid viscosity recovery rate alter removal of shear.

Abstract: Curable silicone rubber compositions of high viscosity can be ballistically printed if the melt flow index is within a defined shear thinning range and the viscosity is also within a defined range.

Abstract: Vulcanizates produced by crosslinking of mixtures including alpha-functional polysiloxanes have high relative permittivities at high electric breakdown strengths which renders them suitable as a dielectric material for applications in actuators, generators or sensors in robotics, orthopedics, electrically controllable “artificial muscles,” and transducers producing electricity from kinetic energy.

Abstract: 3D printing of curable silicone cam positions is made possible by employing a mixture of Si—H-functional silicon compounds and silicon compounds bearing aliphatically unsaturated groups, a hydrosilylation catalyst, and a combination of a reinforcing filler and a rheological agent containing polar groups, exhibiting shear thinning behavior.

Abstract: A device for the dry cleansing of surfaces to remove particulates contains triboelectrically chargeable component(s) of an organic polymer material containing uniformly distributed finely divided silicone polymer particles.

Abstract: Silicon elastomer articles are prepared by a 3-D printing process by depositing droplets of high viscosity curable silicone onto a substrate layer by layer from independently spatially controllable nozzles and irradiation with independently spatially controllable electromagnetic energy.

Abstract: Vulcanizates produced by crosslinking of mixtures including alpha-functional polysiloxanes have high relative permittivities at high electric breakdown strengths which renders them suitable as a dielectric material for applications in actuators, generators or sensors in robotics, orthopedics, electrically controllable “artificial muscles,” and transducers producing electricity from kinetic energy.

Abstract: Organopolysiloxanes containing a large proportion of methylene-bonded polar groups have high relative permittivities, and are especially useful as thermally stable dielectrics. A methoxymethyl alkoxysilane starting material is easily synthesized, and can be incorporated into the polymers by conventional methods known in organosilicon chemistry.

Abstract: A temporary adhesive for reversibly bonding a silicon wafer to a silicon support contains a crosslinkable organopolysiloxanes composition and a fatty acid or salt thereof or fatty acid ester as a release regulator having a density different from the crosslinkable organopolysiloxanes composition of at least 0.1 g/cm3, which upon parting of the wafer from the substrate, the adhesive remains substantially adhered to the substrate.

Abstract: A temporary adhesive for reversibly bonding a silicon wafer to a silicon support contains a crosslinkable organopolysiloxanes composition and a fatty acid or salt thereof or fatty acid ester as a release regulator having a density different from the crosslinkable organopolysiloxanes composition of at least 0.1 g/cm3, which upon parting of the wafer from the substrate, the adhesive remains substantially adhered to the substrate.

Abstract: High strength silicone elastomers with enhanced physical properties are prepared from silicone polymers having ionic or organometallic functional groups, crosslinked through coulombic interactions and/or covalent bonds.

Abstract: The present invention relates to silicone rubber compositions and long-term-stress-resistant silicone elastomers obtained therefrom, which have excellent resistance to long-term dynamic mechanical stresses, and to their use.

Abstract: High strength silicone elastomers with enhanced physical properties are prepared from silicone polymers having ionic or organometallic functional groups, crosslinked through coulombic interactions and/or covalent bonds.

Abstract: The invention relates to a process for producing mixtures which contain a finely divided, surface-treated filler, silicones and, if appropriate, further additives, and which can be used for producing crosslinkable silicone rubber compositions, wherein the crosslinkable silicone rubber compositions produced from the filler/silicone mixtures produced have excellent viscosity stability, improved processability, and lead to silicone elastomers having an improved property profile.