A water-based hydrogel polymer coating and a method of application to natural rubber or other elastomeric latex products are provided. The water-based hydrogel polymer is mixed with a blend of at least one elastomeric material to provide a hydrogel polymer blend composition. The water-based hydrogel polymer blend composition is applied in a single application to an elastomeric article, such as gloves, without additional solvents in the polymer blend composition and without a separate acid or chemical priming step. The water-based hydrogel coating herein provides increased lubricity to facilitate improved wet and dry donning of the elastomeric article.

Provided is a water-soluble film for molding a packaging capsule which is capable of enclosing chemical agents especially a detergent, has a robust property that prevents leakage of the detergent through suitable thickness and strength and an easy-processing property that keeps robustness not to make a drawn portion break in mold-processing such as deep drawing, further has a soluble resistance that does not make the chemical agent elute within 30 seconds in water at 20° C. and a complete-solubility property within a short period of time in dish-washing and clothes-washing, also has sufficient solubility and complete-solubility properties for film portions around the perimeter edge pasted with a water-soluble film for a top, and exhibits a strong-sealing property to have a temporal stability.

A water-soluble film comprises one or more kinds of anion-group-modified polyvinyl alcohols including repeating units from a fatty acid vinyl ester comonomer and anion-group-containing repeating units, in which a degree of saponification thereof is set from 91 mol% or more to 99 mol% or less and a degree of modification by anion groups is set from 1.0 mol% or more to 6.0 mol% or less so that an amount of anion-group modification is set from 1.0 mol% or more to 3.5 mo%l or less to a total amount of the anion-group-modified polyvinyl alcohols, and are formed by including less than 45 parts by mass of a plasticizer per 100 parts by mass of a total amount of the anion-group-modified polyvinyl alcohols, and have a tensile modulus of 100 MPa or less.

An object of the present invention is to provide a barrier film whose gas barrier properties hardly deteriorate even after a retort treatment and after a Gelboflex test. The barrier film of the present invention includes a barrier coat layer, an inorganic oxide deposition layer, and a substrate layer, in this order, wherein the barrier coat layer has a hardness of 1.10 GPa or more and 1.55 GPa or less, and a plastic deformation rate of 21.0% or more.

Microporous sheet product and methods of making and using the same. In one embodiment, the microporous sheet product is made by a process that includes melt-extruding a sheet material using an extrusion mixture that includes a thermoplastic polymer, a superabsorbent polymer, and a compatibilizing agent. After extrusion, the compatibilizing agent may be removed from the sheet material. When the sheet product is imbibed with a polar or ion-containing liquid, the superabsorbent polymer swells, causing a reduction in the pore size of the sheet product. The exposure also causes some of the superabsorbent polymer to migrate to the exterior of the microporous sheet product. The microporous sheet product may be used, for example, as a battery separator, as a food packaging material, as a diffusion barrier in the ultrafiltration of colloidal matter, and in disposable garments.

Mucus penetrating nanoparticles for inducing, increasing, or enhancing an immune response typically include core of a blend of a biodegradable hydrophobic polymer and a hydrophilic polymer, wherein ≥50% of the biodegradable polymer is conjugated to the hydrophilic polymer, and the hydrophilic polymers forms a coating on the particle. The particles encapsulate a cargo, typically an antigen, adjuvant or other immunomodulator, or a nucleic acid encoding the antigen, or combination thereof. Pharmaceutical compositions including an effective amount of particles to induce an immune response in a subject in need thereof are also provided. Methods of inducing an immune response are also provided, and typically include administering to a subject, preferably via the respiratory tract, the pharmaceutical composition. In some embodiments, the subject has cancer or an infection of the lung.

The hydrogel includes a first network structure and a second network structure. The second network structure is entwined with the first network structure. The first network structure contains a polymer crosslinked with a first crosslinking agent. The second network structure contains a polymer crosslinked with a second crosslinking agent. 50 mol % or more of the first crosslinking agent does not contain a decomposable bond. 50 mol % or more of the second crosslinking agent does not contain a decomposable bond.

Described herein is a multilayer article comprising: a. a polymer substrate comprising an abstractable atom; and b. a hydrogel coating thereon wherein the hydrogel coating has a water content of at least 10 wt % and is covalently bonded to the polymer substrate, and wherein the hydrogel coating is derived from an aqueous composition having a pH less than 9.5, the aqueous composition comprising: (a) a hydrophilic monomer selected from at least one of (meth)acrylate or (meth)acrylamide; (b) at least 0.1 wt % of a water-swellable clay; (c) a first initiator, wherein the first initiator is water-soluble and is a Type I photoinitiator; and (d) a second initiator, wherein the initiator is water-soluble and is a Type II photoinitiator; and (e) an acid.

A polymer film can be adjusted to movement or a fine uneven surface of a living body and has excellent ability to adhere to a biological tissue. The polymer film includes a block copolymer having a structure in which branched polyalkylene glycol and polyhydroxyalkanoic acid are bound to each other, wherein the polymer film has a film thickness of 10 to 1000 nm. The branched polyalkylene glycol has at least three terminal hydroxyl groups per molecule, the mass percentage of the branched polyalkylene glycol relative to the total mass of the block copolymer is 1% to 30%, and a value obtained by dividing the average molecular weight of polyhydroxyalkanoic acid in the block copolymer by X that is the number of terminal hydroxyl groups present per a single molecule of the branched polyalkylene glycol is 10000 to 30000.

A method is used to provide an electrically-conductive polyaniline pattern by providing a uniform layer of a photocurable composition on a substrate. The photocurable composition comprises a water-soluble reactive polymer comprising (a) greater than 40 mol % of recurring units comprising sulfonic acid or sulfonate groups, and (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition. The photocurable composition is exposed to cause crosslinking via [2+2] photocycloaddition of the (b) recurring units, thereby forming a crosslinked polymer. Any remaining water-soluble reactive polymer is removed. The crosslinked polymer is contacted with an aniline reactive composition having aniline monomer and up to 0.5 molar of an aniline oxidizing agent, thereby forming an electrically-conductive polyaniline disposed either within, on top of, or both within and on top of, the crosslinked polymer.

Hydrogels, bioplastics, and techniques for generating the same are described herein. An example method includes generating a resin including a globular protein, a co-monomer, water, and a photoinitiator. A hydrogel is generated by exposing the resin to light, thereby polymerizing the globular protein and the co-monomer. Further, the example method includes dehydrating the hydrogel by removing at least a portion of the water; and rehydrating the hydrogel in the presence of a hydrogen bonding agent.