The present invention relates to a process for the development of a highly efficient solid state matrix by the activation of acrylate based polymer resin having specialized functional groups with 1,1-Carboxyl diimidazole for immobilizing biologically active macromeloecules such as oxidases, in particular plant oxidases and the most preferred being tea polyphenol oxidase through indirect covalent bonding/cross linking on such activated polymer resin support, are thermally stable, gives very high number of turnovers in vitro (n times) with tea substrate forming exclusive product Theaflavins without any loss of biological activity and leaving the product remaining in vitro with adherence to matrix rendering the matrix safe towards product poisoning and subsequent partial or complete loss of biological activity of the matrix bound enzyme system and thus well adapted to and well suited biorectors based on such systems. It is unique with respect to its recyclability or otherwise uneconimical tea substrates such as seed and flower substrates into theaflavins both with respect to crude substrate or purified ones.

The present invention relates to a process for the development of a highly efficient solid state matrix by the activation of acrylate based polymer resin having specialized functional groups with 1,1-Carboxyl diimidazole for immobilizing biologically active macromeloecules such as oxidases, in particular plant oxidases and the most preferred being tea polyphenol oxidase through indirect covalent bonding/cross linking on such activated polymer resin support, are thermally stable, gives very high number of turnovers in vitro (n times) with tea substrate forming exclusive product Theaflavins without any loss of biological activity and leaving the product remaining in vitro with adherence to matrix rendering the matrix safe towards product poisoning and subsequent partial or complete loss of biological activity of the matrix bound enzyme system and thus well adapted to and well suited biorectors based on such systems. It is unique with respect to its recyclability or otherwise uneconimical tea substrates such as seed and flower substrates into theaflavins both with respect to crude substrate or purified ones.

A monoallophanate can be used in paint or adhesive compositions. The monoallophanate has the formula 1:

##STR00001## where R, R.sup.1-R.sup.6 are each independently identical or different hydrocarbyl radicals having 1-8 carbon atoms, which may be branched or cyclic, or else may be integrated together to form a cyclic system, and m and n are each independently 0-2.

In a water-absorbent resin production apparatus for producing a water-absorbent resin by polymerizing a water-soluble ethylenically unsaturated monomer, a water-absorbent resin powder obtained by drying a water-absorbent resin composition with a dryer passes through a first powder flow path pipe, is discharged therefrom toward a classifier while a flow rate is regulated so as to a predetermined value by a powder flow rate regulating discharge member composed of a hopper and a rotary valve, and is classified by the classifier. In the water-absorbent resin production apparatus, a collector for collecting a powder aggregate composed of aggregated particles of the water-absorbent resin powder is disposed in the first powder flow path pipe. Accordingly, a water-absorbent resin in the form of a particulate powder from which the powder aggregate is removed can be produced at a high production efficiency.

In a water-absorbent resin production apparatus for producing a water-absorbent resin by polymerizing a water-soluble ethylenically unsaturated monomer, a water-absorbent resin powder obtained by drying a water-absorbent resin composition with a dryer passes through a first powder flow path pipe, is discharged therefrom toward a classifier while a flow rate is regulated so as to a predetermined value by a powder flow rate regulating discharge member composed of a hopper and a rotary valve, and is classified by the classifier. In the water-absorbent resin production apparatus, a collector for collecting a powder aggregate composed of aggregated particles of the water-absorbent resin powder is disposed in the first powder flow path pipe. Accordingly, a water-absorbent resin in the form of a particulate powder from which the powder aggregate is removed can be produced at a high production efficiency.

The invention is related to azetidinium-containing copolymers and vinylic monomers and their uses in formation of non-silicone hydrogel coatings on silicone hydrogel contact lenses.

The invention is related to azetidinium-containing copolymers and vinylic monomers and their uses in formation of non-silicone hydrogel coatings on silicone hydrogel contact lenses.

The present disclosure relates to a polyamide-based polymer composition with superior fluidity and a polyamide-based composite material with superior mechanical strength prepared therefrom. More specifically, it relates to a polyamide-based polymer composition containing 0.1-5 parts by weight of dicyclohexylmethane bisdecanoamide, which is a cyclic compound, as a fluidity control agent based on 100 parts by weight of a mixture consisting of 20-90 wt % of a polyamide-based resin and 10-80 wt % of a reinforcing fiber, a polyamide-based composite material prepared using the same, and a method for preparing the same. The polymer composition according to the present disclosure, wherein dicyclohexylmethane bisdecanoamide is used as a fluidity control agent, provides an effect of reducing friction between a molten resin and a processing machine and greatly reducing torque by effectively dispersing a reinforcing fiber in a polyamide-based resin. Also, the polymer composition according to the present disclosure may be usefully used in compounding, extrusion molding and injection molding of polyamide-based engineering plastics containing reinforcing fibers at high contents. In addition, according to the present disclosure, the addition of the fluidity control agent greatly improves flowability during processing. Therefore, a polyamide-based composite material with superior mechanical strength can be prepared under relatively mild conditions because uniform mixing of the reinforcing fiber and the polymer resin is induced.

A photoresponsive material contains a nanoparticle with a perovskite crystal structure and a shell-like ligand that has a plurality of binding portions with an ionic structural unit and that has a polymer portion bound to the nanoparticle at a plurality of positions via the plurality of binding portions.

The present invention relates to a method for manufacturing a super absorbent resin, the method for manufacturing a super absorbent resin can provide a super absorbent resin which has an optimized pore size and porosity, wherein an absorbent surface area is increased accordingly. The super absorbent resin can exhibit a fast absorption rate under pressure and under no-pressure.