The present application describes a microcapsule comprising: (i) a lipophilic core material, and (ii) a microcapsule shell, wherein microcapsule shell formed from oil-in-water emulsion polymerisation of monomer mixture consisting essentially of: (a) greater than 70 to about 99% by weight of at least one polyfunctional ethylenically unsaturated monomer, (b) about 1 to about 30% by weight of at least one unsaturated carboxylic acid monomer or its ester, and (c) about 0 to about 30% by weight of at least one vinyl monomer. Also provides process for preparing the same and its method of use in various applications.

The present application describes a microcapsule comprising: (i) a lipophilic core material, and (ii) a microcapsule shell, wherein microcapsule shell formed from oil-in-water emulsion polymerisation of monomer mixture consisting essentially of: (a) greater than 70 to about 99% by weight of at least one polyfunctional ethylenically unsaturated monomer, (b) about 1 to about 30% by weight of at least one unsaturated carboxylic acid monomer or its ester, and (c) about 0 to about 30% by weight of at least one vinyl monomer. Also provides process for preparing the same and its method of use in various applications.

An ink set for inkjet recording, comprising a first aqueous ink comprising a colorant stabilized by cationic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by cationic dispersing groups; a second aqueous ink comprises a colorant stabilized by anionic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by anionic dispersing groups.

A method for pre-analytical treatment of a serum or plasma sample from a patient suspected of suffering from oxidative stress, which includes contacting the sample with one or more microcapsules having a gelled alginate core and a semipermeable coating, where the alginate core includes dispersed receptors against an oxidised human parathyroid hormone (PTH) peptide. The semipermeable membrane can be obtained by layer-by-layer deposition of polycationic and polyanionic macromolecules onto the gelled core, following by hardening, crosslinking and co-acervation of the macroionic phases.

A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

A biodegradable core-shell microcapsule composition with controlled release of an active material is provided, wherein the shell of the microcapsule is composed of a biopolymer cross-linked with a combination of two or more different types of cross-linking agents.

It is an object of the present invention to provide a capsule comprising a functional substance and having good shape stability and a good feeling of use. A method for producing a capsule, comprising steps of mixing gelatin and a functional substance; adding a carbodiimide crosslinking agent to crosslink the gelatin with the carbodiimide crosslinking agent; solidifying the crosslinked gelatin; and grinding the solidified gelatin.

It is an object of the present invention to provide a capsule comprising a functional substance and having good shape stability and a good feeling of use. A method for producing a capsule, comprising steps of mixing gelatin and a functional substance; adding a carbodiimide crosslinking agent to crosslink the gelatin with the carbodiimide crosslinking agent; solidifying the crosslinked gelatin; and grinding the solidified gelatin.

The present disclosure provides thermally expandable microspheres at least partially prepared from bio-based monomers and a process of their manufacture. The microspheres include a thermoplastic polymer shell encapsulating a blowing agent. The thermoplastic polymer shell includes a copolymer of an itaconate dialkylester and at least one aliphatic or aromatic mono-ethylenically unsaturated comonomer. The itaconate dialkylester has the formula (1): ##STR00001## where each of R.sub.1 and R.sub.2, separately from one another, is an alkyl group having 1-4 carbon atoms, and the copolymer includes 0-50 wt. % of vinyl aromatic comonomers, based on the total weight of the comonomers. The present disclosure further provides expanded microspheres usable in a variety of applications.

The disclosure relates to porous and non-porous silica capsules (capsules in capsule or core-shell capsules), porous microspheres, as well as their direct phase emulsification process without surfactant and their use, wherein the particles comprise a liposoluble active/payload.