Disclosed are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer and including a natural hydrogel and a silane coupling agent.

Disclosed is a composition of a polarization source dispersed in an aqueous medium. Preferably, the polarization source forms a composite with a host. As the aqueous medium, a hydrogel is also usable in addition to water.

Disclosed is a composition of a polarization source dispersed in an aqueous medium. Preferably, the polarization source forms a composite with a host. As the aqueous medium, a hydrogel is also usable in addition to water.

The present invention is for a material composition based on plant fibers, which can be used for 3D-printing at small as well as large scales. The material composition is biodegradable, it is based on renewable ingredients, and it uses little energy for the material production and extrusion processes. The material composition contains plant fiber, which may be wood chips or cellulose, a binder, which may be starch or methyl cellulose, and a solvent, which may be water. The composition may also contain an acid, which may be vinegar, an additive to control the drying speed, and preservatives to prevent microbial growth. The material composition can be 3D-printed by a robot-controlled extruder, with a width and height of individual layers greater than 10.

The present invention is for a material composition based on plant fibers, which can be used for 3D-printing at small as well as large scales. The material composition is biodegradable, it is based on renewable ingredients, and it uses little energy for the material production and extrusion processes. The material composition contains plant fiber, which may be wood chips or cellulose, a binder, which may be starch or methyl cellulose, and a solvent, which may be water. The composition may also contain an acid, which may be vinegar, an additive to control the drying speed, and preservatives to prevent microbial growth. The material composition can be 3D-printed by a robot-controlled extruder, with a width and height of individual layers greater than 10.

A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 40 mol-% to 99.9 mol-% repeating units according to Formula (1) ##STR00001## (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; (c) from 0.01 mol-% to 88.51 mol-% of neutral structural units; (d) from 1.98 mol-% to 20 mol-% of anionic structural units, wherein the repeating anionic structural units result from the incorporation of a monomer comprising at least one carboxylate anion, and wherein the repeating anionic structural units are different from units (a);
wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.

A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 40 mol-% to 99.9 mol-% repeating units according to Formula (1) ##STR00001## (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; (c) from 0.01 mol-% to 88.51 mol-% of neutral structural units; (d) from 1.98 mol-% to 20 mol-% of anionic structural units, wherein the repeating anionic structural units result from the incorporation of a monomer comprising at least one carboxylate anion, and wherein the repeating anionic structural units are different from units (a);
wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.

Embodiments of the present invention are directed to kits, compositions and methods for modifying and altering polysaccharide fillers and drug delivery systems with the application of hyaluronidase.

Embodiments of the present invention are directed to kits, compositions and methods for modifying and altering polysaccharide fillers and drug delivery systems with the application of hyaluronidase.

The present invention discloses a matrix comprising a modified polysaccharide consisting of repeating disaccharide units whereby in at least 11% of the disaccharide units one primary alcohol group is oxidized into a carboxylic acid group.