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Kang-neung, South Korea

Patent
Amogreentech Co. and Snu R&Db Foundation | Date: 2014-12-29

A cytokine adsorption sheet comprises a nanofiber web formed by electrospinning a spinning solution prepared by mixing an adsorbent material capable of adsorbing cytokine and an electrospinnable polymer material. Thus, the dissolution of the adsorbent material by blood can be prevented.


Patent
Amogreentech Co. | Date: 2015-01-29

A heat insulation sheet includes: a heat insulation layer formed as a nanofiber web form having a plurality of pores by electrospinning a polymeric material; and an adhesion layer laminated on one or both sides of the heat insulation layer and formed as a nanofiber web form by electrospinning an adhesion material, to thereby be made thin and have a plurality of fine pores, and to thus improve heat insulation performance.


Provided is a waterproof sound-permitting sheet, including: a porous nanoweb that has a plurality of pores and that is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby shortening a manufacturing process and improving waterproofing performance and sound-permitting performance.


Provided is a waterproof sound-permitting sheet, including: a porous substrate having a plurality of pores; and a porous nanoweb, which is stacked on the porous substrate, has a plurality of pores, and is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby improving waterproofing performance and sound penetration performance by forming on a porous substrate, such as non-woven fabric, the porous web having the black or the different color by using the electrospinning method, and can shorten a production process by eliminating a pigment coating step by means of adding the pigment to the polymer material when manufacturing the porous nanoweb according to the electrospinning method.


Provided are a polymer electrolyte, a lithium secondary battery using the same, and a manufacturing method thereof, in which a gel polymer electrolyte is formed from a monomer for forming a gel polymer by a rapid polymerization reaction, when using a porous nanofiber web as an electrolyte matrix, and injecting an organic electrolytic solution formed by mixing the gel polymer forming monomer and a polymerization initiator, to induce an addition polymerization reaction, but the porous nanofiber web maintains a web-like shape. The polymer electrolyte includes: a separator made of a porous nanofiber web having a plurality of nanofibers; and a gel polymer portion impregnated in the porous nanofiber web. the gel polymer portion is formed by impregnating an electrolytic solution containing a non-aqueous organic solvent, a lithium salt solute, a gel polymer forming monomer, and a polymerization initiator in the porous nanofiber web and polymerizing the gel polymer forming monomer.

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