The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

The conductive composition contains at least (a) conductive metal fibers, and (b) at least one compound selected from a compound represented by the following Formula (1), a compound represented by the following Formula (2), and a compound having a partial structure represented by the following Formula (3). Each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, or a carbamoyl group. Each of R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, and R.sup.11 independently represents an alkyl group having 1 to 4 carbon atoms, and R.sup.7 represents a hydrogen atom or a substituent. R.sup.12 represents an alkyl group, an alkoxy group, an acyl group, or a hydrogen atom. * represents a bond. ##STR00001##

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 an anti-fogging coated transparent article including an anti-fog film, the anti-fog film being a single-layer film containing a water-absorbent resin, a hydrophobic group, and a metal oxide component. The hydrophobic group is a chain or cyclic alkyl group having 1 to 30 carbon atoms, preferably a linear alkyl group having 6 to 14 carbon atoms, in which at least one hydrogen atom is optionally substituted by a fluorine atom. The hydrophobic group is bonded directly to a metal atom of the metal oxide component. The anti-fog film contains, for example, the metal oxide component in an amount of 0.01 to 60 parts by mass and the hydrophobic group in an amount of 0.05 to 10 parts by mass per 100 parts by mass of the water-absorbent resin. The water-absorbent resin is, for example, polyvinyl acetal.

The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles.

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 are superabsorbent materials composed of agar, and one or more water-soluble natural polysaccharides, and dietary compositions containing such superabsorbent materials. The disclosed superabsorbent materials have various food and therapeutic applications and can be used as loading vehicles for nutrients and therapeutic agents. Also provided are methods for preparing such superabsorbent materials.

The present invention relates to a single-layer or multilayer coated polyester film having a transparency of at least 92%, with the polyester film having a first surface and a second surface, in which a permanent anti-fog coating has been applied to at least one of the surfaces of the polyester film and the anti-fog coating includes at least one water-soluble polymer, an inorganic, hydrophilic material and a crosslinker. The water-soluble polymer is a polyvinyl alcohol or a hydrophilic polyvinyl alcohol copolymer. Furthermore, the present invention relates to production processes for the coated polyester film and to energy saving mats in greenhouses produced therefrom.