A hydrogel particle that has an average cross-sectional diameter in the range from 1 micrometer (m) to 1000 m, wherein the particle includes a first polymer network with an average mesh size that allows diffusion of a molecule with an hydrodynamic radius of 1000 nanometer (nm) or less into the first polymer network and which particle includes one or more binding molecules that are immobilized by the polymer network. The hydrogel particle preferably has wherein the first polymer network has an average mesh size that prevents diffusion of a molecule with an average hydrodynamic radius of more than 1000 nm to diffuse into the first polymer network, preferably the mesh size prevents diffusion of a molecule with an average hydrodynamic radius of more than 100 nm, and preferably more than 5 nm. Methods for reducing the bioavailability of one or more soluble biological molecules in a biological system by using the described hydrogel particle.

An interpenetrating network (IPN) polymer membrane material includes a soft polyurethane interspersed with a crosslinked conducting polymer. The material can be reversibly switched between its oxidized and reduced states by the application of a small voltage, 1 to 4 volts, thus modulating its diffusivity.

Apparatuses, methods, and systems are disclosed for attaching structures. One system includes: a device having a first structure attached to a second structure; a first polymer coupled to the first structure, wherein the first polymer has a first temperature profile and a first shape; and a second polymer coupled to the second structure. The second polymer has a second temperature profile and a second shape. The second shape interlocks the first shape. The first polymer and the second polymer secure the first structure to the second structure in response to the first polymer and the second polymer being in a first temperature range. The first polymer and the second polymer release the first structure from the second structure in response to the first polymer and the second polymer being in a second temperature range different from the first temperature range.

The invention relates to a process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises structural units having anionic and/or anionogenic groups and structural units having polyether side chains, and at least one polysaccharide (PS). The process here comprises the process steps: a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa.Math.s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS) and b) spray drying of the aqueous dispersion produced in process step a). Furthermore, the use of the pulverulent composition according to the invention in inorganic binder compositions, especially as a rheological additive, is disclosed.

An electroconductive film including a substrate film, and an organic electroconductive layer disposed on the substrate film, wherein the substrate film is formed of a resin containing an alicyclic structure-containing polymer having crystallizability, a thickness of the substrate film is 5 m or more and 50 m or less, and a crystallization degree of the alicyclic structure-containing polymer having crystallizability is 30% or more. The alicyclic structure-containing polymer having crystallizability is preferably a hydrogenated product of a ring-opening polymer of dicyclopentadiene.

The invention relates to a process for producing superabsorbent polymer particles, comprising surface postcrosslinking, classifying the surface postcrosslinked superabsorbent polymer particles, deagglomerating the separated oversize fraction using a roll crusher and recycling the disintegrated oversize fraction before or into the classification of the surface postcrosslinked superabsorbent polymer particles.

A thermal process for carbonizing hemp and reducing particle size, mechanically, by grinding or milling said carbonized hemp materials to generate a precise particle size hemp char and combining the hemp char particles with a polymer into a master batch.

A thermal process for carbonizing hemp and reducing particle size, mechanically, by grinding or milling said carbonized hemp materials to generate a precise particle size hemp char and combining the hemp char particles with a polymer into a master batch.

Embodiments relate to a hard coat-laminated film for a touch panel display face plate, the hard coat-laminated film including: a transparent resin film, and a hard coat formed on at least one surface of the transparent resin film from a coating material including an active energy ray-curable resin composition. The hard coat-laminated film meets the following requirements (1-i) to (1-v): (1-i) a total light transmittance of 80% or higher, (1-ii) a haze of 3.0% or lower, (1-iii) a yellowness index of 3 or lower, (1-iv) a water contact angle of a touch surface of 100 or larger; and (1-v) a water contact angle of the touch surface of 100 or larger after 20,000-times reciprocal cotton wiping of the touch panel.

Provided is a method of preparing a superabsorbent polymer which exhibits more improved liquid permeability and absorption rate while maintaining excellent absorption performance. The method of preparing the superabsorbent polymer may include the steps of: performing crosslinking polymerization of water-soluble ethylene-based unsaturated monomers having acidic groups which are at least partially neutralized in the presence of an internal crosslinking agent to form a water-containing gel polymer including a crosslinked polymer; drying, pulverizing, and size-sorting the water-containing gel polymer to form a base polymer powder; performing surface-crosslinking of the base polymer powder using a surface-crosslinking solution including one or more surface-crosslinking agents in the presence of first alumina particles; and adding second alumina particles to the surface-crosslinked base polymer powder and then mixing them with each other.