An object is to provide a heat conductive sheet having good handleability when mounting between the heating element and the heat dissipator, and softness that enables the distortion of the heating element, the heat dissipator, and the like to be suppressed in use. The heat conductive sheet contains: a matrix comprising a cured product of organopolysiloxane; and heat conductive fillers comprising anisotropic fillers with their major axes oriented in the thickness direction, and has a load property P represented b formula (1) below of 0.1 to 0.7: Load property P=(F.sub.30−F.sub.20)/F.sub.10 (1) wherein F.sub.10 is a load of the heat conductive sheet at 10% compression, F.sub.20 is a load of the heat conductive sheet at 20% compression, and F.sub.30 is a load of the heat conductive sheet at 30% compression.

The invention provides an adhesive composition containing an adhesive component (S) and a release component (H) formed of a polyorganosiloxane having a complex viscosity of 3,400 (Pa.Math.S) or higher.

The invention provides an adhesive composition containing an adhesive component (S) and a release component (H) formed of a polyorganosiloxane having a complex viscosity of 3,400 (Pa.Math.S) or higher.

The present, invention aims to provide an additive which has a reactive group with good active energy ray curability. When incorporated in a paint, the additive does not bleed over time and imparts an excellent leveling property and a defoaming property to the paint. There is provided a (meth)acrylic-modified siloxane compound of formula (a1) which has, as a branch and, optionally, at one or both of the terminals, of a linear polysiloxane backbone, a specific number of moieties having a (meth)acryloyl group at a terminal and a (poly)oxyalkylene structure of the formula —(C.sub.aH.sub.2aO).sub.b—. Also provided is an additive for paints, comprising said (meth)acrylic-modified siloxane compound.

The present, invention aims to provide an additive which has a reactive group with good active energy ray curability. When incorporated in a paint, the additive does not bleed over time and imparts an excellent leveling property and a defoaming property to the paint. There is provided a (meth)acrylic-modified siloxane compound of formula (a1) which has, as a branch and, optionally, at one or both of the terminals, of a linear polysiloxane backbone, a specific number of moieties having a (meth)acryloyl group at a terminal and a (poly)oxyalkylene structure of the formula —(C.sub.aH.sub.2aO).sub.b—. Also provided is an additive for paints, comprising said (meth)acrylic-modified siloxane compound.

The present disclosure relates to microcapsules, methods of using such microcapsules in the delivery of drugs and probiotic microbes to subjects in need thereof, and methods of using such microcapsules for in vitro culture of microbes. In particular, the microcapsules comprise novel siloxane-based membranes that maintains transport properties essential to communication and growth of microbes.

The present disclosure relates to microcapsules, methods of using such microcapsules in the delivery of drugs and probiotic microbes to subjects in need thereof, and methods of using such microcapsules for in vitro culture of microbes. In particular, the microcapsules comprise novel siloxane-based membranes that maintains transport properties essential to communication and growth of microbes.

The present invention is related to a curable composition for dental impression comprising: a curable base composition and a surfactant system comprising a first surfactant, which is at least one compound having formula (I) and a fluorotelomer having formula (II), which works synergistically with the fluorotelomer so as to permit the composition to surprisingly have a lower contact angle; these results are reached with relatively low concentrations of biodegradable surfactants.

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The present invention is related to a curable composition for dental impression comprising: a curable base composition and a surfactant system comprising a first surfactant, which is at least one compound having formula (I) and a fluorotelomer having formula (II), which works synergistically with the fluorotelomer so as to permit the composition to surprisingly have a lower contact angle; these results are reached with relatively low concentrations of biodegradable surfactants.

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An addition reaction curing type polyorganosiloxane composition for bonding poly(phenylene sulfide) resins includes (A) a polyorganosiloxane containing two or more alkenyl groups in the molecule, (B) a polyorganohydrogensiloxane having, in the molecule, three or more silicon-atom-bonded hydrogen atoms, (C) a platinum-based catalyst, (D) an oxide or carbonate of a metal selected from among the metals in Groups 2 and 12 of the periodic table, and (E) an adhesion promoter, the content of the ingredient (D) being 0.1-20 wt % with respect to the whole composition.