A curable organopolysiloxane composition contains: (A) 100 mass parts of a functional organopolysiloxane component having at least one radical curable group selected from an acrylate group and a methacrylate group and optionally one or more alkoxysilyl groups; (B) 0 to 100 mass parts of a condensation curable organo polysiloxane component; (C) one to 10 mass parts of tetraalkoxysilanes or a hydrolyate of the tetraalkoxysilanes; and optionally one or more of (D) a radical initiator, (E) a condensation catalyst, (F) fillers, (G) adhesion promoters, (H) pigments, (I) a non-reactive organopolysiloxane, and (J) inhibitors.

A curable organopolysiloxane composition contains: (A) 100 mass parts of a functional organopolysiloxane component having at least one radical curable group selected from an acrylate group and a methacrylate group and optionally one or more alkoxysilyl groups; (B) 0 to 100 mass parts of a condensation curable organo polysiloxane component; (C) one to 10 mass parts of tetraalkoxysilanes or a hydrolyate of the tetraalkoxysilanes; and optionally one or more of (D) a radical initiator, (E) a condensation catalyst, (F) fillers, (G) adhesion promoters, (H) pigments, (I) a non-reactive organopolysiloxane, and (J) inhibitors.

A heat-crosslinkable adhesive composition comprises a polymer (A) comprising at least one hydrolysable alkoxysilane group, a silylated copolymer tackifying resin (B′), a non-silylated tackifying resin (C), and a crosslinking catalyst (D). The silylated copolymer tackifying resin comprises a repeating unit (B′1) derived from a silylated olefin monomer, in particular from a silylated (meth)acrylate monomer, and one or more repeating units (B′2) derived from olefin or diolefin monomers included in a petroleum fraction obtained by cracking naphtha and chosen from a C5 fraction, a C9 fraction, dicyclopentadiene. A self-adhesive article comprises a support layer coated with a self-adhesive layer consisting of the heat-crosslinkable adhesive composition in the crosslinked state.

A heat-crosslinkable adhesive composition comprises a polymer (A) comprising at least one hydrolysable alkoxysilane group, a silylated copolymer tackifying resin (B′), a non-silylated tackifying resin (C), and a crosslinking catalyst (D). The silylated copolymer tackifying resin comprises a repeating unit (B′1) derived from a silylated olefin monomer, in particular from a silylated (meth)acrylate monomer, and one or more repeating units (B′2) derived from olefin or diolefin monomers included in a petroleum fraction obtained by cracking naphtha and chosen from a C5 fraction, a C9 fraction, dicyclopentadiene. A self-adhesive article comprises a support layer coated with a self-adhesive layer consisting of the heat-crosslinkable adhesive composition in the crosslinked state.

The present invention relates to a sealant composition, including: organohydroxypolysiloxane, precipitated calcium carbonate, ground calcium carbonate, carbon black, a thickener, and a curing agent, wherein the thickener is polyether-modified organopolysiloxane.

The present invention relates to a sealant composition, including: organohydroxypolysiloxane, precipitated calcium carbonate, ground calcium carbonate, carbon black, a thickener, and a curing agent, wherein the thickener is polyether-modified organopolysiloxane.

An aqueous dispersion of a silicone pressure sensitive adhesive base can be combined with a curing agent and cured to form a silicone pressure sensitive adhesive.

An aqueous dispersion of a silicone pressure sensitive adhesive base can be combined with a curing agent and cured to form a silicone pressure sensitive adhesive.

An adhesive polyorganosiloxane composition includes, at a specific composition ratio: (A) a linear polyorganosiloxane containing an alkenyl group including a low-viscosity linear polyorganosiloxane containing an alkenyl group; (B) a polyorganosiloxane containing at least three alkenyl groups in the molecule; (C1) a polyorganohydrogensiloxane having 3 or more hydrogen atoms bonded to a silicon atom in the molecule; (C2) a linear polyorganohydrogensiloxane having one hydrogen atom bonded to a silicon atom only at both terminals of the molecular chain, and having no aliphatic unsaturated bonds in the molecule; (D) a filler; (E) a platinum group metal compound; and (F) two or more kinds of specific adhesion imparting agent.

An adhesive polyorganosiloxane composition includes, at a specific composition ratio: (A) a linear polyorganosiloxane containing an alkenyl group including a low-viscosity linear polyorganosiloxane containing an alkenyl group; (B) a polyorganosiloxane containing at least three alkenyl groups in the molecule; (C1) a polyorganohydrogensiloxane having 3 or more hydrogen atoms bonded to a silicon atom in the molecule; (C2) a linear polyorganohydrogensiloxane having one hydrogen atom bonded to a silicon atom only at both terminals of the molecular chain, and having no aliphatic unsaturated bonds in the molecule; (D) a filler; (E) a platinum group metal compound; and (F) two or more kinds of specific adhesion imparting agent.