Abstract: The present invention relates to the use of a methacrylate or acrylate modified polysaccharide; or a single-chain polysaccharide methacrylate or acrylate-based nanoparticle, having a surface tension measured by Du Noüy Ring method equal to or lower than 63 mN/m, as oil-in-water emulsion stabilizer; and an oil-in-water emulsion stabilizer composition, and an oil-in-water emulsion containing them. It also relates to processes for their preparation, and their uses.

Abstract: The present invention relates to the use of a copolymer having the following formula (II): wherein: A1 is a linker, preferably an enzyme cleavable peptide sequence, and y is 0 or 1; AA is a residue of a hydrophobic amino acid; x is an integer comprised between 17 and 270; n is an integer comprised between 5 and 170; and m is an integer comprised between 0 and 80; optionally in the presence of a co-surfactant, as surfactant for the stabilization of an emulsion at a pH between 4 and 6.5.

Abstract: The invention provides a partially or totally coated substrate, the coating comprising a water-absorbing hydrophilic random polymeric network comprising hydrophilic cross- linked polymeric chains which are directly bound to the surface of the substrate, said polymeric chains comprising one or more hydrophilic monomer(s). The invention also provides a process for obtaining the coated substrate of the invention. The coated substrate of the invention shows a long-lasting wear and abrasion protective effect.

Abstract: The present invention comprises a process for preparing water-dispersible single-chain polymeric nanoparticles, which comprises cross-linking a polymer having a solubility equal to or higher than 100 mg per litre of water, and an amount of complementary reactive groups comprised from 5 to 60 molar % of the total amount of monomer units present in the polymer chain; with a crosslinking agent having crosslinkable groups; at a temperature comprised from 20 to 25° C. in the absence of a catalyst; to obtain water-dispersible conjugates and compositions containing the nanoparticle; and the use thereof.

Abstract: The present invention comprises a process for preparing water-dispersible single-chain polymeric nanoparticles, which comprises cross-linking a polymer having a solubility equal to or higher than 100 mg per litre of water, and an amount of complementary reactive groups comprised from 5 to 60 molar % of the total amount of monomer units present in the polymer chain; with a crosslinking agent having crosslinkable groups; at a temperature comprised from 20 to 25° C. in the absence of a catalyst; to obtain water-dispersible conjugates and compositions containing the nanoparticle; and the use thereof.