The invention concerns a CF paper comprising a base paper and a coating applied thereto, said coating containing at least one binding agent, at least one ink-absorbing agent, at least one coating pigment and conventional additives, and being characterised in that the at least one binding agent comprises a cross-linked biopolymeric material in the form of nanoparticles.

Each capsule comprises a liquid core (14) and a gelled shell (16) comprising a gelled polyelectrolyte completely encapsulating the liquid core (14) at the periphery thereof. The gelled shell (16) is suitable for retaining the liquid core (14) when the capsule (12) is immersed in a gas. The liquid core (14) comprises an intermediate drop (18) of an intermediate phase, the intermediate phase being placed in contact with the gelled shell (16), and at least one internal drop (20) of an internal phase placed in the intermediate drop (18). The ratio of the volume of the core (14) to the volume of the gelled shell (16) is greater than 2, advantageously is greater than 50.

Multiple emulsions and techniques for the formation of multiple emulsions are generally described. A multiple emulsion, as used herein, describes larger droplets that contain one or more smaller droplets therein. In some embodiments, the larger droplet or droplets may be suspended in a carrying fluid containing the larger droplets that, in turn, contain the smaller droplets. As described below, multiple emulsions can be formed in one step in certain embodiments, with generally precise repeatability, and can be tailored in some embodiments to include a relatively thin layer of fluid separating two other fluids.

A nested capsule having a first capsule held within a second capsule. Each of the first and second capsules has a shell that is a supramolecular cross-linked network, such as a cucurbituril supramolecular cross-linked network. Each capsule shell is obtained or is obtainable from the complexation of a composition including a host, such as cucurbituril, and one or more building blocks having suitable guest functionality for the host, thereby to form a supramolecular cross-linked network. The nested capsules are suitable for delivering and selectively releasing an encapsulant at a location.

A quad-centric nozzle and system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a quad-centric nozzle is disclosed for encapsulating discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid. In at least one embodiment, the quad-centric nozzle includes: a material feed port assembly, a polymer feed port assembly, a first water feed port assembly, a second water feed port assembly and an encapsulated material exit port assembly. In at least one embodiment, the quad-centric nozzle is configured for use in a system for hydrocapsule encapsulation having a pressure control system, a water control system and sparging column, and an ultraviolet exposure chamber system.

The invention provides a hollow nano-particle comprising a crosslinked shell and a void core; and a preparation method thereof. The hollow nano-particle may be used in rubber composition, tire product, and pharmaceutical delivery system etc.

A quad-centric nozzle and system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a quad-centric nozzle is disclosed for encapsulating discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid. In at least one embodiment, the quad-centric nozzle includes: a material feed port assembly, a polymer feed port assembly, a first water feed port assembly, a second water feed port assembly and an encapsulated material exit port assembly. In at least one embodiment, the quad-centric nozzle is configured for use in a system for hydrocapsule encapsulation having a pressure control system, a water control system and sparging column, and an ultraviolet exposure chamber system.

A quad-centric nozzle and system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a quad-centric nozzle is disclosed for encapsulating discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid. In at least one embodiment, the quad-centric nozzle includes: a material feed port assembly, a polymer feed port assembly, a first water feed port assembly, a second water feed port assembly and an encapsulated material exit port assembly. In at least one embodiment, the quad-centric nozzle is configured for use in a system for hydrocapsule encapsulation having a pressure control system, a water control system and sparging column, and an ultraviolet exposure chamber system.

The invention concerns a CF paper comprising a base paper and a coating applied thereto, said coating containing at least one binding agent, at least one ink-absorbing agent, at least one coating pigment and conventional additives, and being characterised in that the at least one binding agent comprises a cross-linked biopolymeric material in the form of nanoparticles.