Patent application number | Description | Published |
20100279092 | MULTIPLE-LAYER FILM AND METHOD FOR MANUFACTURNIG THE SAME - The present invention provides a multiple layer film comprising a substrate layer and a multiple layer having two or more sub-layers formed by use of a single target material, provided on at least one side of the substrate layer; and a method for manufacturing the same. | 11-04-2010 |
20110290920 | SHREDDER FOR SUPER ADSORBENT POLYMER AND PREPARATION METHOD OF SUPER ABSORBENT POLYMER USING THE SAME - The present invention is to provide a shredder for super absorbent polymer that comprises: an inlet portion for feeding a plate-shaped super absorbent polymer; a pulverizing portion for pulverizing the super absorbent polymer fed through the inlet portion; and an outlet portion for discharging the pulverized super absorbent polymer from the pulverizing portion. The pulverizing portion comprises: a rotary drum to which a plurality of rotary blades are attached; at least fixed blade for pulverizing the super absorbent polymer in cooperation with the plural rotary blades; and a housing for holding the rotary drum and the at least one fixed blade. Each rotary blade has a shape of polygon with at least one vertex having an acute angle of at most 45°. | 12-01-2011 |
20120035294 | Process for Preparing Super Absorbent Polymers - The present invention relates to a process for preparing super absorbent polymers, and more specifically to a process for preparing super absorbent polymers comprising the steps of: forming a monomer composition comprising water-soluble, ethylenic unsaturated monomers and non-reactive fine particles having a diameter of 20 nm to 1 mm; and subjecting the monomer composition to a thermal polymerization or a UV-induced polymerization. | 02-09-2012 |
20120108695 | POLYMERIZATION REACTOR FOR PRODUCING A SUPER ABSORBENT POLYMER AND METHOD FOR PRODUCING A SUPER ABSORBENT POLYMER USING THE POLYMERIZATION REACTOR - The present invention provides a polymerization reactor for producing a super absorbent polymer comprising: a reaction unit; a monomer composition supply unit being connected to the reaction unit and supplying a monomer composition solution containing a monomer, a photoinitiator, and a solvent; an agitating shaft extended in the reaction unit from one end of the reaction unit connected to the monomer composition supply unit to the other end of the reaction unit; a plurality of agitating blades installed around the agitating shaft; and a light irradiation unit providing light to the monomer composition solution furnished from the monomer composition supply unit, and a method of producing super absorbent polymers by using the same. | 05-03-2012 |
20130177710 | COMPOSITE MATERIALS, COMPOSITE FILM MANUFACTURED BY USING THE SAME AND METHOD FOR MANUFACTURING COMPOSITE FILM - The present invention provides a composite material comprising a glass cloth; and an organic-inorganic hybrid composition comprising diphenylsilanediol and alkoxy silane, a composite film manufactured by using the same, and a method for manufacturing the composite film. | 07-11-2013 |
20140051813 | PREPARATION METHOD OF SUPERABSORBENT POLYMER - The present invention relates to a preparation method of a superabsorbent polymer, and specifically to a method of preparing a superabsorbent polymer including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; classifying the milled hydrous gel phase polymer into two or more grades by particle size; adding a surface cross-linking agent to each hydrous gel phase polymer classified into two or more grades; and carrying out a surface cross-linking reaction of the hydrous gel phase polymer to which the surface cross-linking agent is added. | 02-20-2014 |
20140058048 | PREPARATION METHOD OF SUPERABSORBENT POLYMER - The present invention relates to a method of preparing a superabsorbent polymer, including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; adding a surface cross-linking agent to the milled polymer; and elevating the temperature of the polymer including the surface cross-linking agent at a speed of 3° C./min to 15° C./min, and carrying out a surface cross-linking reaction at 100° C. to 250° C. | 02-27-2014 |
20140087162 | MULTI-LAYERED PLASTIC SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME - A multi-layered plastic substrate is provided, in which a first organic or organic-inorganic hybrid layer, a gas barrier layer and a second organic or organic-inorganic hybrid layer are stacked on both surfaces of two plastic films joined to each other. At least one of the first and second organic or organic-inorganic hybrid layers is formed of a composition including at least one of: at least one organic silane selected from the group consisting of compounds represented by Formula 1, polycaprolactone, polytetrahydrofuran, epoxy and xylene glycol. | 03-27-2014 |
20140329024 | PREPARATION METHOD OF A SUPER ABSORBENT POLYMER - The present invention relates to a method of preparing a super absorbent polymer (SAP), and more specifically to a method of preparing a SAP including the steps of spraying the monomer composition on a substrate having a hydrophobic surface of a certain tan angle and carrying out a UV polymerization on a polymerization reactor having a slightly hydrophilic surface. The present invention can improve the conversion rate of polymerization because the shape of the monomer solution is changed from prior sheet form to droplet form so that UV rays reach the deeper layer of the droplets, can minimize or simplify the recycling process because it is easy to control the particles of the prepared polymer, and can provides the SAP of high caliber by narrowing the particle diameter distribution and improving the uniformity. | 11-06-2014 |
20140339344 | SHREDDER FOR SUPER ABSORBENT POLYMER AND PREPARATION METHOD OF SUPER ABSORBENT POLYMER USING THE SAME - The present invention is to provide a shredder for super absorbent polymer that comprises: an inlet portion for feeding a plate-shaped super absorbent polymer; a pulverizing portion for pulverizing the super absorbent polymer fed through the inlet portion; and an outlet portion for discharging the pulverized super absorbent polymer from the pulverizing portion. The pulverizing portion comprises: a rotary drum to which a plurality of rotary blades are attached; at least fixed blade for pulverizing the super absorbent polymer in cooperation with the plural rotary blades; and a housing for holding the rotary drum and the at least one fixed blade. Each rotary blade has a shape of polygon with at least one vertex having an acute angle of at most 45°. | 11-20-2014 |
20150087742 | SUPER ABSORBENT POLYMER AND A PREPARATION METHOD THEREOF - The present invention relates to a super absorbent polymer (SAP) and a preparation method thereof. More specifically, the present invention provides a SAP satisfying the overall properties required to a SAP and especially the superior initial absorbency and absorbing rate under load at the same time, and a preparation method thereof, by treating the surface of the SAP with a surface treatment solution including water and a diol-based or glycol-based surface crosslinking agent. | 03-26-2015 |