Provided is a polycarbonate-polyorganosiloxane copolymer, including: a polyorganosiloxane block (A-1) including a specific structural unit; and a polycarbonate block (A-2) formed of a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following condition (A) or (B): condition (A): a hexane extraction amount of the polycarbonate-polyorganosiloxane copolymer is 150 ppm or less; and condition (B): average weights of polyorganosiloxane blocks in polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymer with a gel permeation chromatograph satisfy a specific expression.

A low-density gel product of the present disclosure has a skeleton containing a polysiloxane chain and an organic polymer chain. In the skeleton, the polysiloxane chain and the organic polymer chain are bonded to each other by covalent bonds at a plurality of positions on both of the chains with silicon atoms of the polysiloxane chain as bonding points. The organic polymer chain may be an aliphatic hydrocarbon chain. The polysiloxane chain may be a polyorganosiloxane chain. The low-density gel product of the present disclosure is a novel low-density gel product with improved mechanical properties including bending flexibility.

The present invention provides a liquid polysiloxane comprising a siloxane-thiourea segment and a crosslinkable functional group(s) selected from one or more ethylenically unsaturated groups, silyl hydride groups, alkylenethiol groups and combinations thereof.

The present invention relates generally to compositions comprising silicone droplets dispersed in an aqueous phase and in particular to cosmetic compositions comprising silicone droplets dispersed in an aqueous phase.

The present invention relates generally to compositions comprising silicone droplets dispersed in an aqueous phase and in particular to cosmetic compositions comprising silicone droplets dispersed in an aqueous phase.

A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.

Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.

The present invention provides a liquid polysiloxane comprising a siloxane-thiourea segment and a crosslinkable functional group(s) selected from one or more ethylenically unsaturated groups, silyl hydride groups, alkylenethiol groups and combinations thereof.

A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.

A glass fiber reinforced polycarbonate composite material, a preparation method and an application thereof; the material includes the following components: component A: 40 parts to 90 parts of a polycarbonate; component B: 1.5 parts to 50 parts of a polysiloxane block copolymer; component C: 5 parts to 60 parts of a glass fiber; component D: 0.1 parts to 30 parts of a phosphorus-containing compound; and component E: 0.01 parts to 30 parts of a polyolefin compound.

Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ≤150 cPs for ≥1 min. post-preparation and ≤300 cPs≤5 min. post-preparation, at ambient temperature.