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公开(公告)号：KR100515404B1
公开(公告)日：2005-09-16
申请号：KR1020020005803
申请日：2002-02-01
Applicant: 한국화학연구원 , 재단법인서울대학교산학협력재단
IPC: A61L27/00
Abstract: 본 발명은 a) 생체활성 세라믹스와 수용성 유기성분 결합제가 혼합된 슬러리에 b) 가연성 액상임시제와 계면활성제가 혼합된 용액을 첨가하여 표면 요철형 골충진제를 제조하는 방법에 관한 것으로서, 보다 구체적으로는 생체활성 세라믹스와 수용성 유기성분 결합제가 혼합된 슬러리를 제조하고; 가연성 액상임시제와 계면활성제가 혼합된 용액을 각각 제조하여 이들을 서로 혼합시킨 후; 상기 용액을 충분히 교반하여 균일화된 슬러리를 형성시키고; 이를 성형; 건조; 탈지; 소결; 분쇄 및 체가름의 연속적인 공정을 통하여 표면 요철형 골충진제를 제조하는 것이다. 본 발명의 골 충진제는 원하는 조건의 기공크기 및 기공도를 용이하게 제어할 수 있으며, 기계적 성질이 향상되고 경제성 및 재현성이 우수하여 대량생산에 적합하다.
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公开(公告)号：KR1020030065795A
公开(公告)日：2003-08-09
申请号：KR1020020005803
申请日：2002-02-01
Applicant: 한국화학연구원 , 재단법인서울대학교산학협력재단
IPC: A61L27/00
Abstract: PURPOSE: Provided is a preparation method of the surface uneven type bone filler which controls the porosity, the surface unevenness, and the amount and size of pore easily by introducing an inflammable liquid template, and has the good economy and reproducibility to be of advantage in the mass production. CONSTITUTION: The preparation method of surface uneven type bone filler comprises a step to prepare a slurry in which the bioactive ceramics and the water soluble organic component binder are mixed; a step to prepare a mixed solution in which a surfactant is added to the inflammable liquid template; a step to stir the solutions of steps and sufficiently and obtain a homogeneous slurry; a step to mould and dry the slurry; a step to degrease the dried slurry; a step to sinter the degreased slurry and form the porous mould; and a step to crush the porous mould and then sieve it.
Abstract translation: 目的：提供表面不均匀型骨填料的制备方法，其通过引入易燃液体模板容易地控制孔隙率，表面不均匀性和孔的数量和尺寸，并且具有良好的经济性和再现性，有利于 批量生产。 构成：表面不均匀型骨填料的制备方法包括制备将生物活性陶瓷和水溶性有机成分粘合剂混合的浆料的工序; 制备将表面活性剂加入到易燃液体模板中的混合溶液的步骤; 搅拌步骤溶液并充分获得均匀浆料的步骤; 模具和干燥浆料的步骤; 脱水干燥浆料的步骤; 烧结脱脂浆料并形成多孔模具的步骤; 以及粉碎多孔模具然后筛分的步骤。
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公开(公告)号：KR1020040085982A
公开(公告)日：2004-10-08
申请号：KR1020030020858
申请日：2003-04-02
Applicant: 한국화학연구원
CPC classification number: B01J23/74 , B01J23/755 , B82Y30/00 , B82Y40/00 , C01B32/166 , C01B2202/36 , D01F9/12 , Y02P20/544 , B82B3/00 , C01B32/05
Abstract: PURPOSE: Provided is a method for producing carbon nanotubes at low temperature and low costs in a large quantity through liquid-state reaction by treating liquid hydrocarbon materials as carbon sources under supercritical condition. CONSTITUTION: Carbon nanotubes are produced by the following steps of: (i) putting a mixture of 80-99.999wt.% of hydrocarbon materials, one or more of mixtures selected from saturated hydrocarbon, unsaturated carbon, aromatic hydrocarbon and derivatives thereof, and 0.001-20wt.% of nucleus materials in a high pressure vessel, wherein the nucleus materials are nano-sized metal particles or metal oxides enabling formation of seeds, and the metals are one or more of mixtures selected from transition metals comprising Co, Ni and Fe, precious metals(Pt, Pd), alkali metals and alkali earth metals; (ii) applying pressure of 1-400atm. and 200-800deg.C of temperature to liquid hydrocarbon materials for 1-600min to be in equilibrium between liquid state and vapor state; (iii) cooling reactants(supercritical fluid) at a rate of 0.01-50deg.C/min which is the same as a heating rate; (iv) separating carbon nanotubes from reactants. The resultant carbon nanotubes are applied to field emitters, nano-composites and nano devices.
Abstract translation: 目的：提供一种通过在超临界条件下处理液态烃材料作为碳源，通过液态反应在低温低成本生产碳纳米管的方法。 构成：碳纳米管通过以下步骤制备：（i）将80-99.999重量％的烃材料，一种或多种选自饱和烃，不饱和碳，芳族烃及其衍生物的混合物和0.001 -20重量％的核材料在高压容器中，其中核材料是能够形成种子的纳米尺寸金属颗粒或金属氧化物，并且金属是一种或多种选自包含Co，Ni和Fe的过渡金属的混合物 ，贵金属（Pt，Pd），碱金属和碱土金属; （ii）施加1-400atm的压力。 和200-800℃的温度对液态烃材料1-600min处于液态和蒸汽状态之间的平衡状态; （iii）以与加热速度相同的0.01-50℃/分钟的速度冷却反应物（超临界流体）; （iv）从反应物中分离碳纳米管。 所得碳纳米管应用于场发射体，纳米复合材料和纳米器件。
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公开(公告)号：KR1020040017726A
公开(公告)日：2004-02-27
申请号：KR1020020050161
申请日：2002-08-23
Applicant: 한국화학연구원
IPC: A61L27/44
Abstract: PURPOSE: A preparation method of porous organic and inorganic complex using the instant gelation process is provided to produce the porous complex having the uniform pore size. CONSTITUTION: The preparation method of the porous organic and inorganic complex using the instant gelation comprises the steps of: reacting 100 wt.% of a polymer and 1 to 50 wt.% of a coupling agent to obtain a coupled polymer; stirring a sol solution consisting of 100 wt.% of the coupled polymer solution, 10 to 90 wt.% of a ceramic precursor and 1 to 30 wt.% of a water soluble calcium salt at 100 to 5000 rpm while adding 1 to 1000 wt.% of a pore former; instant gelling at 30 to 80 deg.C to capture the pore former inside the gel; and dissolving it to obtain the porous body. The polymer contains the functionality selected from hydroxide, amine, carboxyl and vinyl groups. The coupling agent contains the functionality selected from isocyanate, glycidoxy, amine, vinyl and chloride groups.
Abstract translation: 目的：提供使用瞬间凝胶化方法的多孔有机和无机复合物的制备方法，以制备具有均匀孔径的多孔复合物。 构成：使用瞬间凝胶化的多孔有机和无机复合物的制备方法包括以下步骤：使100重量％的聚合物和1至50重量％的偶联剂反应以获得偶联的聚合物; 搅拌由100重量％的偶联聚合物溶液，10至90重量％的陶瓷前体和1至30重量％的水溶性钙盐以100至5000转/分的溶液溶液，同时加入1至1000重量％ ％成孔剂; 在30至80摄氏度下即时凝胶以捕获凝胶内的成孔剂; 并溶解以获得多孔体。 该聚合物含有选自氢氧化物，胺，羧基和乙烯基的官能团。 偶联剂含有选自异氰酸酯，缩水甘油氧基，胺，乙烯基和氯化物基团的官能团。
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公开(公告)号：KR100791810B1
公开(公告)日：2008-01-04
申请号：KR1020020017818
申请日：2002-04-01
Applicant: 한국화학연구원 , 한화케미칼 주식회사
IPC: H01M8/02
Abstract: 본 발명은 가스확산전극의 제조방법에 관한 것으로서, 전극 성형체 제조시의 압착하는 과정에서 가스층 및 반응층의 전극층 시트와 금형 사이에 시트 전체면에서 성형조제를 균일하게 흡수할 수 있는 고강도 다공성 세라믹판을 개재한 후 압착함으로써, 페이스트 제조시 첨가된 성형조제를 효과적으로 제거할 수 있고, 전극 성형체 소결시의 가열 및 가압하는 과정에서 전극 성형체와 금형 사이에 밀착을 방지할 수 있는 금속박을 개재한 후 가열 및 가열함으로써, 전극 성형체 소결 후 최종 전극과 금형간의 이형을 원활히 하여 이형시 최종 전극의 손상을 방지할 수 있는 가스확산전극의 제조방법에 관한 것이다.
가스확산전극, 전극층 시트, 금속망, 전극 성형체, 금형, 세라믹판, 금속박-
Patent Agency Ranking
公开(公告)号：KR1020050031693A
公开(公告)日：2005-04-06
申请号：KR1020030067932
申请日：2003-09-30
Applicant: 한국화학연구원
IPC: C04B35/624
CPC classification number: C04B35/624 , C04B35/10 , C04B35/63416 , C04B35/636 , C04B2235/96
Abstract: An inhibition method of crack in alumina ceramic shaped body obtained by wet formation process is provided with adding specific polymer for reinforcing intensity to prevent generation of microfine cracks during drying, crying or working process, thereby improving reliability of mechanical strength of the body. The method comprises a first step of drying the shaped body at 20 x 10exp-3 g/hr.cm^2 when the body has above 0.18 of water content; a second step of drying the shaped body at 10 x 10exp-3 g/hr.cm^2 when the body has the water content of 0.17 to 0.07; a third step of drying the shaped body at 1 x 10exp-3 g/hr.cm^2 when the body has the water content below 0.07. The alumina ceramic shaped body is formed with mixing a dispersing agent and a defoaming agent in water then adding ceramic powder and preparing a stable ceramic slurry by using a ball mill. The slurry solution contains 40-55 vol.% of solid content. The dispersing agent may be an aqueous dispersing agent such as ammonium polymethacrylate aqueous solution.
Abstract translation: 提供通过湿法成型方法获得的氧化铝陶瓷体中的裂纹的抑制方法，加入特定聚合物以增强强度，以防止在干燥，哭泣或加工过程中产生微细裂纹，从而提高机体的机械强度的可靠性。 该方法包括当身体具有0.18以上的水分含量时，以20×10 -11g / hr·cm 2干燥成形体的第一步骤。 当身体的含水量为0.17至0.07时，以10×10lf-3g / hr.cm ^ 2的速度干燥成形体的第二步骤; 当身体的水含量低于0.07时，第三步骤以1×10lf-3g / hr.cm ^ 2的速度干燥成形体。 氧化铝陶瓷体形成在水中混合分散剂和消泡剂，然后加入陶瓷粉末，并使用球磨机制备稳定的陶瓷浆料。 浆料溶液含有40-55体积％的固体含量。 分散剂可以是水分散剂如聚甲基丙烯酸铵水溶液。
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公开(公告)号：KR100477895B1
公开(公告)日：2005-03-18
申请号：KR1020020018851
申请日：2002-04-08
Applicant: 한국화학연구원
Abstract: 본 발명은 절삭성 및 내구성이 증진된 융착식 메탈본딩 다이아몬드 공구의 제조방법에 관한 것으로서, 더욱 상세하게는 다이아몬드 지립/금속접착층/샹크 모재로 구성된 다이아몬드 공구를 제작함에 있어 다이아몬드 지립 표면을 열 또는 화학물질로 개질화한 후 나노크기의 전이금속을 화학적 습식방법으로 표면 코팅하는 사용 전처리 과정을 특이성 있게 구성하여 지립과 샹크 모재의 결합력을 증진시킴으로써 다이아몬드 지립의 보류특성을 증대시켜, 결과적으로 다이아몬드 공구의 내구성 및 절삭성을 증진시키는 등의 진보된 효과를 얻게 되는 다이아몬드 공구의 개선된 제조방법에 관한 것이다.
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公开(公告)号：KR100460452B1
公开(公告)日：2004-12-08
申请号：KR1020020050161
申请日：2002-08-23
Applicant: 한국화학연구원
IPC: A61L27/44
Abstract: PURPOSE: A preparation method of porous organic and inorganic complex using the instant gelation process is provided to produce the porous complex having the uniform pore size. CONSTITUTION: The preparation method of the porous organic and inorganic complex using the instant gelation comprises the steps of: reacting 100 wt.% of a polymer and 1 to 50 wt.% of a coupling agent to obtain a coupled polymer; stirring a sol solution consisting of 100 wt.% of the coupled polymer solution, 10 to 90 wt.% of a ceramic precursor and 1 to 30 wt.% of a water soluble calcium salt at 100 to 5000 rpm while adding 1 to 1000 wt.% of a pore former; instant gelling at 30 to 80 deg.C to capture the pore former inside the gel; and dissolving it to obtain the porous body. The polymer contains the functionality selected from hydroxide, amine, carboxyl and vinyl groups. The coupling agent contains the functionality selected from isocyanate, glycidoxy, amine, vinyl and chloride groups.
Abstract translation: 目的：提供使用本发明的凝胶化方法制备具有均匀孔径的多孔复合物的多孔有机和无机复合物的制备方法。 组成：使用本发明的凝胶化制备多孔有机和无机复合物的方法包括以下步骤：使100重量％的聚合物和1-50重量％的偶联剂反应以获得偶联聚合物; 以100-5000rpm搅拌由100重量％偶联聚合物溶液，10-90重量％陶瓷前体和1-30重量％水溶性钙盐组成的溶胶溶液，同时加入1至1000重量％ 。％成孔剂; 在30至80℃下即时胶凝以捕获凝胶内的孔隙形成剂; 并将其溶解以获得多孔体。 该聚合物含有选自氢氧根，胺基，羧基和乙烯基的官能团。 偶联剂含有选自异氰酸酯，缩水甘油氧基，胺，乙烯基和氯化物基团的官能团。
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公开(公告)号：KR1020040081215A
公开(公告)日：2004-09-21
申请号：KR1020030015923
申请日：2003-03-14
Applicant: 한국화학연구원 , 한화케미칼 주식회사
IPC: B22F9/24
Abstract: PURPOSE: A method for preparing a high concentrated ultrafine metal particle solution in which uniform metal particles having ultra-fine particle size of 100 nm or less are dispersed by effectively controlling agglomeration and growth of particles in the metal particle production process. CONSTITUTION: In a method for producing metal particles by adding reducing agent to a metal salt aqueous solution, the method for preparing a high concentrated ultrafine metal particle solution comprises the process of producing ultrafine metal particles by adding the reducing agent to the polymer-metal salt complex after forming polymer-metal salt complex by adding a polymer electrolyte to the metal salt aqueous solution, wherein the metal salt is nitrate, sulfate, carbonate or chloride of metal ions selected from silver (Ag), nickel (Ni), copper (Cu), gold (Au), cobalt (Co) and palladium (Pd), wherein the reducing agent is NaBH4, LiAlBH4, hydrazine, hydrazine hydrate, formaldehyde or a mixture thereof, wherein 0.2 to 2 equivalents of the reducing agent are used for 1 equivalent of the metal salt, wherein the polymer electrolyte is dissolved thus dissociated into water since dissociating group exists in polymer chains of the polymer electrolyte, wherein the polymer electrolyte is selected from a polymer material to which a dissociating group selected from polyacrylic acid, polymethacrylic acid, polystyrene sulfonate, lignin sulfonate and salts thereof is bonded, and a copolymer of the dissociating group bonded polymer material and other aqueous polymer without dissociating group, wherein 0.1 to 30 weight parts of the polymer electrolyte are used for 1 weight part of the metal salt, and wherein the produced metal particles are ultrafine powder having particle size of 100 nm or less.
Abstract translation: 目的：通过有效地控制金属颗粒制造工序中的颗粒的聚集和生长，制备其中分散有超细粒度为100nm以下的均匀金属颗粒的高浓缩超细金属颗粒溶液的制备方法。 构成：在通过向金属盐水溶液中添加还原剂来制造金属粒子的方法中，高浓缩超细金属粒子溶液的制造方法包括通过将还原剂添加到聚合物金属盐中而制造超细金属粒子的方法 通过向金属盐水溶液中加入聚合物电解质形成聚合物 - 金属盐络合物，其中金属盐是选自银（Ag），镍（Ni），铜（Cu）的金属离子的硝酸盐，硫酸盐，碳酸盐或氯化物 ），金（Au），钴（Co）和钯（Pd），其中还原剂是NaBH 4，LiAlBH 4，肼，水合肼，甲醛或其混合物，其中0.2-2当量的还原剂用于1 相当于金属盐，其中由于解离基存在于聚合物电解质的聚合物链中，所以聚合物电解质溶解，因此解离成水，其中聚合物电解质是sele 从聚丙烯酸，聚甲基丙烯酸，聚苯乙烯磺酸盐，木质素磺酸盐及其盐结合的解离基团的聚合物材料和不具有解离基团的解离基团键合的聚合物材料和其它水性聚合物的共聚物， 将30重量份的聚合物电解质用作1重量份的金属盐，其中所制备的金属颗粒是粒径为100nm以下的超细粉末。
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公开(公告)号：KR1020030079057A
公开(公告)日：2003-10-10
申请号：KR1020020017818
申请日：2002-04-01
Applicant: 한국화학연구원 , 한화케미칼 주식회사
IPC: H01M8/02
Abstract: PURPOSE: Provided is a method for producing a gas diffusion electrode, by which can remove a molding aid effectively, and can prevent the close contact between the shaped electrode and the mold to protect the final electrode from the damages on releasing. CONSTITUTION: The method for producing a gas diffusion electrode comprises the steps of: inserting a metal net(16) between an electrode layer sheet(12) of a gas layer and an electrode layer sheet(14) of a reaction layer, positioning them between molds(1a,1b), compressing the molds to form a shaped electrode body, positioning the shaped electrode body between the molds, sintering them by heating and pressurizing to form a final gas diffusion electrode. The method is characterized in that a high-intensity porous ceramic plate(17a,17b), which can absorb a molding aid uniformly on the whole sheet, is inserted between the electrode layer sheets(12,14) of the gas layer and the reaction layer and the molds(1a,1b) before compressing them to remove the molding aid in the step of forming the shaped electrode body.
Abstract translation: 目的：提供一种气体扩散电极的制造方法，能够有效地除去成型助剂，能够防止成形电极与模具之间的紧密接触，从而保护最终电极免受释放的损伤。 构成：用于制造气体扩散电极的方法包括以下步骤：将金属网（16）插入在气体层的电极层片（12）和反应层的电极层片（14）之间，将它们定位在 模具（1a，1b），压缩模具以形成成形的电极体，将成形的电极体定位在模具之间，通过加热和加压进行烧结以形成最终的气体扩散电极。 该方法的特征在于，将能够在整个片材上均匀吸收成型助剂的高强度多孔陶瓷板（17a，17b）插入在气体层的电极层片（12,14）和反应 层和模具（1a，1b），然后压缩它们以在形成成形电极体的步骤中移除模制助剂。
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