A flexible foam composition comprising a flexible foam structure comprising a plurality of struts, and a plurality of fibers, where a majority of the fibers are associated with the struts. The fibers may be thermally conductive fibers. The fibers include, but are not necessarily limited to, homopolymer and/or copolymer fibers having a glass transition temperature (Tg) of −50° C. (−58° F.) or greater, carbon fibers, animal-based fibers, plant-based fibers, metal fibers, and combinations thereof. The presence of fibers can impart to the flexible foam composition greater indentation force deflection (IFD), greater static thermal conductivity, improved compression set, improved height retention or durability, and/or a combination of these improvements. The flexible foam composition may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.

The present invention could be used in medicine and relates to a method of producing ion-exchange polymeric hydrogels for eye treatment, which includes monomer copolymerization under ionizing radiation in presence of linking agent and ionites, when copolymerization is carried out gradually to obtain a prepolymer of desired viscosity for filling lens forms, and ionites introduction in the form of finely dispersed powder, filing the hydrogel into lens forms and subsequent copolymerization till an adequate ionizing dosage is performed providing a gel suitable for lenses formation, characterized in that the gel is also filled with pharmaceutically active agent in the form of finely dispersed powder prior to ionite introduction, and the size of particles of PAA is lower that the size of ionite particles. The present invention also relates to therapeutic hydrogel lenses produced in accordance with the above-mentioned method.

The present invention relates to a biocompatible hydrogel comprising hyaluronic acid and polyethylene glycol, and more particularly, to a biocompatible hydrogel prepared by inducing inter-molecular and/or intra-molecular cross-linking of hyaluronic acid and polyethylene glycol only by irradiating radiation without adding a reactor, a chemical cross-linking agent, or the like, a method for preparing the same, and the use thereof.

An insoluble foam composite material is formed by a mixture combining an anionic polysaccharide, a cationic polysaccharide, a solvent, and a plasticizer. In particular, the composite material can be prepared by heating, freezing and lyophilizing the mixture to produce, for example, insoluble porous foam-like composites.

Provided are porous cellulose particles containing chitosan and having predetermined pores on a surface and a predetermined particle diameter, and a method for producing the porous cellulose particles. Porous cellulose particles including unsubstituted cellulose and chitosan, wherein a content of the chitosan is not greater than 20 mass % in a total of 100 mass % of the unsubstituted cellulose and the chitosan, pores having a diameter from 0.05 to 5 μm are observed in an image of surfaces of the porous cellulose particles observed by a scanning electron microscope, and a proportion of porous cellulose particles having a particle diameter from 10 to 200 μm is not less than 90 mass %.

The present disclosure relates to a method of preparing polymeric microparticles that can realize excellent mechanical strength and stability as well as high crosslinking efficiency and production yield, polymeric microparticles, medical compositions, cosmetic compositions, medical articles and cosmetic articles comprising the same.

Textile compositions comprising at least one filamentous fungus are disclosed, as are methods for making and using such textile compositions. Embodiments of the textile compositions generally include at least one of a plasticizer, a polymer, and a crosslinker, in addition to the filamentous fungus. The disclosed textile compositions are particularly useful as analogs or substitutes for conventional textile compositions, including but not limited to leather.

A method of producing an injectable gel product is provided, comprising (a) cross-linking a first glycosaminoglycan (GAG) with a first crosslinking agent to produce a gel, wherein the charging ratio of crosslinking agent to disaccharide unit is below 0.15; (b) preparing particles of the gel; (c) mixing the glycosaminoglycan (GAG) gel particles with a second GAG to provide a mixture; (d) cross-linking the mixture with a second crosslinking agent to obtain cross-linking between the GAGs of the second, outer phase, thereby providing a gel having a first, inner phase of the cross-linked GAG gel particles, embedded in a gel of the second GAG outer phase; and (e) preparing injectable particles, each such particle containing a plurality of the cross-linked GAG gel particles of the first, inner phase. An injectable gel product, an aqueous composition, and a pre-filled syringe as also provided.

The present invention relates to a crosslinked carboxyalkyl chitosan forming a matrix, compositions comprising same, a method for manufacturing same, and the different applications thereof, in particular in the field of therapy, rheumatology, ophthalmology, aesthetic medicine, plastic surgery, internal surgery, dermatology, gynecology or cosmetics. The invention relates in particular to a matrix comprising at least one carboxyalkyl chitosan having glucosamine units, N-acetylglucosamine units and glucosamine units substituted with a carboxyalkyl group, the carboxyalkyl chitosan having a degree of acetylation ranging from 40% to 80%, expressed as the number of moles of N-acetyl groups relative to the number of moles of total glucosamine units, the carboxyalkyl chitosan being crosslinked by covalent bonds between the chains of carboxyalkyl chitosan.

A flexible foam composition comprising a flexible foam structure comprising a plurality of struts, and a plurality of fibers, where a majority of the fibers are associated with the struts. The fibers may be thermally conductive fibers. The fibers include, but are not necessarily limited to, homopolymer and/or copolymer fibers having a glass transition temperature (Tg) of −50° C. (−58° F.) or greater, carbon fibers, animal-based fibers, plant-based fibers, metal fibers, and combinations thereof. The presence of fibers can impart to the flexible foam composition greater indentation force deflection (IFD), greater static thermal conductivity, improved compression set, improved height retention or durability, and/or a combination of these improvements. The flexible foam composition may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.