Abstract:
PURPOSE: A method for manufacturing an artificial bait using hydrogel is provided to enable effective fishing and to remarkably reduce water pollution. CONSTITUTION: A method for manufacturing an artificial bait using hydrogel comprises: a step of dissolving biocompatible polymers in distilled water; a step of mixing with polyvalent alcohol to obtain a solution; a step of adding smell diffusing additive to the solution; a step of irradiating radiation to the solution to form the artificial bait; and a step of performing thermal treatment of the artificial bait. The biocompatible polymer is selected from the group consisting of polyvirny alcohol, polyvinyl pyrrolidone, polyacrylic acid, polyethylene oxide, carageenan, sodium carboxymethyl cellulose, gelatin, agar, alginate, and chitosan.
Abstract:
PURPOSE: A polyethylene porous separator for a lithium ion secondary battery is provided to ensure high porosity, excellent mechanical properties, and low heat shrinkage rate, thereby enabling use for a lithium secondary battery with high cell efficiency. CONSTITUTION: A polyethylene porous separator for a lithium ion secondary battery comprises the steps of: melting and extruding 10~30 weight% of vegetable oil as a pore-forming agent and 60~80 weight% of high density polyethylene; heating the manufactured film; orienting the manufactured film and extracting the pore-forming agent; washing, drying and heat-fixing the oriented film; and irradiating radiation to the manufactured film.
Abstract:
본 발명은 어성초, 금전초, 차전초, 느릅나무 및 상엽의 혼합추출물을 유효성분으로 함유하는 알레르기성 피부질환의 예방 및 치료용 약학적 조성물에 관한 것으로, 특히 본 발명의 어성초, 금전초, 차전초, 느릅나무 및 상엽 혼합추출물은 전신적인 알레르기성 염증반응, 국소적인 염증반응 및 염증성 사이토카인을 억제하는 효과가 있으므로, 이를 유효성분으로 함유하는 본 발명에 따른 약학적 조성물은 알레르기성 피부질환을 예방 및 치료하는데 유용하게 사용될 수 있다. 어성초 추출물, 금전초 추출물, 차전초 추출물, 느릅나무 추출물, 상엽 추출물알레르기성 피부질환
Abstract:
본 발명은 실록산이 그라프팅된 다공성 분리막, 이의 제조방법 및 이를 적용한 리튬 2차전지에 관한 것으로, 보다 상세하게는 실록산 화합물 단량체가 그라프팅된 폴리 올레핀계 다공성 분리막과; 방사선 조사장치 내에 단량체로서 실록산 화합물과 다공성 분리막을 유기용매에 함침시키는 단계(단계 1), 상기 방사선 조사 장치 내의 산소를 질소로 치환시키는 단계(단계 2), 상기 단계 1의 함침된 다공성 분리막에 방사선을 조사하여 그라프팅시키는 단계(단계 3); 및 상기 단계 3에서 미반응된 단량체 또는 단일 중합체를 제거하기 위해 세척 및 건조시키는 단계(단계 4)를 포함하는 실록산 화합물이 그라프팅된 다공성 분리막의 제조방법 및 이를 적용한 리튬 2차전지에 관한 것이다. 본 발명에 의하면 고분자 분리막의 표면에 실록산 화합물 단량체를 그라프팅시킴으로써 분리막의 전해질에 대한 젖음성을 향상시킴과 동시에 종래 분리막보다 향상된 전기화학적 안정성을 나타낼 수 있으므로 리튬 2차전지의 에너지 밀도, 성능 및 안전성을 향상시키는데 유용하게 사용될 수 있다. 실록산, 그라프팅, 다공성 분리막, 리튬 2차전지
Abstract:
PURPOSE: A method for producing titanium oxide nanoparticles is provided to secure high effect of deodorizing ammonia as a deodorant. CONSTITUTION: A method for producing titanium oxide nanoparticles comprises the following steps of: adding a surfactant into a solution in which titanium compounds are dissolved; adding alcohol to remove hydroxyl radicals in the mixture; purging the mixture with nitrogen to eliminate oxygen from it; and applying radiation to the oxygen-eliminated mixture for crystallization.
Abstract:
PURPOSE: A gel paste formulation for treating gastric ulcer containing Japanese elm extract is provided to reduce evaporation amount of moisture and create optimal humid environment for a long time. CONSTITUTION: A gel paste formulation for treating gastric ulcer contains 1-20 weight% of biocompatilble polymer, 1-20 weight% of polyhydric alcohol, and 1-60 weight% of Japanese elm extract. The biocompatible polymer is a one copolymer selected from sodiumcarboxymethylcellulose (CMC), cross-linking CMC, alginate, carageenan, gelanitin, agar and chitosan. The polyhydric alcohol is selected from glycerin, polyethyleneglycol, ethyleneglycol, propyleneglycol, 1-3-butyleneglycol, hexyleneglycol, sorbitol, and mannitol.
Abstract:
An atopic dermatitis therapeutic hydrogel is provided to inhibit the moisture release, continuously deliver drugs, adequately absorb percolate, show excellent gel strength, prevent the infection by bacteria and satisfy the storage property and sterilizing effect, thereby being effectively used for atopic dermatitis. A hydrogel for treating atopic dermatitis through irradiation is prepared by a method comprising the steps of: (a) after dissolving 1-50 wt.% of a biocompatible polymer and 1-20 wt.% of a polyhydric alcohol in 1-10 wt.% of at least one extract of a plant medicinal herb selected from the group consisting of Houttuynia cordata, persimmon leaves, Chelidonium majus var. asiaticum, pine needles, Canavalia gladiata, rosemary, lavender, spearmint, chamomile and rooibos, casting the solution; (b) freeze-drying the casted gel at a temperature of -100 to -15 deg.C and thawing it at a temperature of 5-50 deg.C; and (c) applying radioactive rays to the thawed hydrogel to crosslink and sterilize.