Abstract: A method of post treatment of the surface of an additive manufactured object is described. The method can include steps of coating at least part of the surface with a curable silicone composition and then curing the coating at room temperature or by heat or UV radiation. The curable silicone composition can have a viscosity in a range from 300 mPa·s to 500 000 mPa·s. A 3D printing method is also described that includes this method and also a post treatment agent including the curable silicone composition.

Abstract: The present invention refers to a method for additive manufacturing a silicone elastomer article using a 3D printer selected from an extrusion 3D printer and a 3D jetting printer, in which a soluble support material composition V is used, which comprises: (A) at least one polyorganosiloxane, (B) at least one polyether or polymer containing polyether moiety, (C) silica; to a silicone elastomer article obtainable by the method of present invention; and to the use of a support material composition V for 3D printing a support, preferably by extrusion.

Abstract: The invention relates to a method of additive manufacturing an object using a 3D printing apparatus, in which at least one layer or part of at least one layer is formed by an addition-crosslinking electro-conductive silicone composition comprising : (A) at least one organopolysiloxane compound A comprising, per molecule at least two C2- C6 alkenyl radicals bonded to silicon atoms, (B) at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom, (C) at least one catalyst C comprising at least one metal from the platinum group or the compound thereof, (D) at least one reinforcing silica filler D, (E) at least one thixotropic agent which is selected from compounds having epoxy group, (poly)ether group, and/or (poly)ester group, organopolysiloxane having an aryl group and mixtures thereof; (F) at least one electro-conductive filler F, which is selected from nickel coated carbon, preferably graphite, graphene or mixture

Abstract: Curable organopolysiloxane compositions and their cured products with superior properties are described as well as their uses as materials for optical devices, such as LEDs.

Abstract: The invention relates to a silicone composition and a method for additive manufacturing a silicone elastomer article. The silicone composition is crosslinkable through addition reactions and comprise: (A) at least one organopolysiloxane compound A comprising, per molecule at least two C2-C6 alkenyl radicals bonded to silicon atoms, (B) at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom, (C) at least one catalyst C consisting of at least one metal or compound, from the platinum group, (D) at least one reinforcing silica filler D which is at least partly surface treated, (E) at least one organopolysiloxane having an aryl group E and (F) optionally at least one crosslinking inhibitor F.

Abstract: A curable silicone composition is described. Also described, is a method of producing a three-dimensional (3D) printed article with a curable silicone composition involving epoxy-related photocuring and hydrosilylation curing. In exemplary embodiments, the resulting three-dimensional (3D) printed article thus formed and the curable silicone composition or the resulting three-dimensional (3D) printed article can be used in electronics applications and/or in 3D printing.

Abstract: The present invention relates to a carbon fiber-containing curable organosilicon composition and a method for preparing the carbon fiber-containing organosilicon composition. The present invention also relates to the electrically conductive rubber obtained by curing the carbon fiber-containing organosilicon composition and its uses.

Abstract: Curable organopolysiloxane compositions and their cured products with superior properties are described as well as their uses as materials for optical devices, such as LEDs.

Abstract: A curable silicone rubber composition is described for an LED enclosure or packaging. A process for preparing the same and the use thereof are also described. Particularly, the compositions can include at least one tackifier component D, which includes: a) a alkenyl or hydrosilyl group including an isocyanurate compound E, and b) an adhesion-imparting ingredient having at least two functional groups selected from the group consisting of alkenyl, epoxy, alkoxy and hydrosilyl groups, which includes of polysiloxane F and optional coupling agents G.

Abstract: The present invention relates to a carbon fiber-containing curable organosilicon composition and a method for preparing the carbon fiber-containing organosilicon composition. The present invention also relates to the electrically conductive rubber obtained by curing the carbon fiber-containing organosilicon composition and its uses.

Abstract: A curable silicone rubber composition is described for an LED enclosure or packaging. A process for preparing the same and the use thereof are also described. Particularly, the compositions can include at least one tackifier component D, which includes: a) a alkenyl or hydrosilyl group including an isocyanurate compound E, and b) an adhesion-imparting ingredient having at least two functional groups selected from the group consisting of alkenyl, epoxy, alkoxy and hydrosilyl groups, which includes of polysiloxane F and optional coupling agents G.