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公开(公告)号：KR100570302B1
公开(公告)日：2006-04-12
申请号：KR1020030047978
申请日：2003-07-14
Applicant: 한국과학기술연구원
IPC: C07C67/24
Abstract: 본 발명은 (알콕시폴리옥시알킬렌글리콜)알킬 불포화카르복실산 디에스테르 화합물의 제조방법에 관한 것으로서, 더욱 상세하게는 시멘트, 모르타르 또는 콘크리트 조성물의 물성을 개선하기 위하여 첨가되는 폴리카르복실산계 혼화제의 원료물질로 사용되어지는 다음 화학식 1로 표시되는 (알콕시폴리옥시알킬렌글리콜)알킬 불포화카르복실산 디에스테르 화합물을 제조하는데 있어, 이중결합이 하나 이상 포함된 불포화 디카르복실산의 디알킬 에스테르를 산 촉매가 존재하는 조건에서 (폴리옥시알킬렌글리콜) 알킬 에테르와의 에스테르 교환 반응시켜 제조하는 방법에 관한 것이다.
상기 화학식 1에서, R
1 , R
2 , R
3 , R
4 및 n은 각각 발명의 상세한 설명에서 정의한 바와 같다.
에스테르 교환반응, 폴리카르복실산계 혼화제, (알콕시폴리옥시알킬렌글리콜)알킬 불포화카르복실산 디에스테르, 불포화 디카르복실산의 디알킬 에스테르-
公开(公告)号：KR100569185B1
公开(公告)日：2006-04-10
申请号：KR1020027015453
申请日：2000-05-19
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/058 , H01M2/145 , H01M2/162 , H01M2/1673 , H01M10/052 , H01M10/056 , H01M10/0565
Abstract: 본 발명은 신규한 하이브리드형 고분자 전해질, 이를 포함하는 리튬이차전지 및 이들의 제조방법을 제공한다. 보다 구체적으로는, 본 발명은 1-3000 nm의 직경을 갖는 입자로 이루어진 초극세 섬유상 다공성 고분자 매트릭스와, 상기 매트릭스 내에 함입되는 고분자 및 리튬염이 용해된 유기 전해액을 포함하는 하이브리드형 고분자 전해질을 제공한다. 상기 하이브리드형 고분자 전해질은 전극과의 접합성, 기계적 강도, 저온 및 고온특성 그리고 리튬이차전지용 유기 전해액과의 호환성이 우수하므로, 리튬이차전지의 제조에 응용될 수 있다.
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公开(公告)号：KR1020050008132A
公开(公告)日：2005-01-21
申请号：KR1020030047978
申请日：2003-07-14
Applicant: 한국과학기술연구원
IPC: C07C67/24
Abstract: PURPOSE: Provided is a method for producing (alkoxy polyoxyalkylene glycol)alkyl unsaturated carboxylic acid diester compounds which have excellent thermal stability and shelf stability and thus are useful for starting materials of concrete admixture. CONSTITUTION: The method for producing an (alkoxy polyoxyalkylene glycol)alkyl unsaturated carboxylic acid diester compound represented by the following formula 1 comprises carrying out transesterification of a dialkyl ester of unsaturated dicarboxylic acid containing at least one double bond, represented by the following formula 2 with a (polyoxyalkyleneglycol)alkyl ether represented by the following formula 3 in the presence of an acid catalyst. In the above formulae 1-3, R1 is a C1-C6 unsaturated hydrocarbon group containing at least one double bond; R2 is a C2-C6 alkylene group; each of R3 and R4 is a C1-C6 alkyl group; and n is the number of added oxyalkylene group and represents an integer of 3-24.
Abstract translation: 目的：提供具有优异的热稳定性和储存稳定性的（烷氧基聚氧亚烷基二醇）烷基不饱和羧酸二酯化合物的方法，因此可用于混凝土外加剂的原料。 构成：由下式1表示的（烷氧基聚氧亚烷基二醇）烷基不饱和羧酸二酯化合物的制造方法包括：将由下式2表示的含有至少一个双键的不饱和二羧酸二烷基酯与 在酸催化剂存在下由下式3表示的（聚氧亚烷基二醇）烷基醚。 在上式1-3中，R 1是含有至少一个双键的C1-C6不饱和烃基; R2是C2-C6亚烷基; R 3和R 4各自为C 1 -C 6烷基; n为添加的氧化烯基数，为3〜24的整数。
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公开(公告)号：KR1020040057695A
公开(公告)日：2004-07-02
申请号：KR1020020084483
申请日：2002-12-26
Applicant: 한국과학기술연구원
IPC: C07C29/124
Abstract: PURPOSE: Provided is a process for producing 2,2,2-trifluoroethanol at a low reaction temperature for a short time in a high yield by using an imidazolium-based ionic solvent. CONSTITUTION: The 2,2,2-trifluoroethanol is produced by hydrolyzing 1-chloro-2,2,2-trifluoroethane in the presence of the imidazolium-based ionic solvent represented by the formula 1 and a base such a hydroxide salt of lithium, sodium and potassium, a carbonate, an acetate, and an organic acid salt. In the formula, R1 and R2 are independently C1-C8 alkyl or benzyl and X is PF6, BF4, NO3, NO2, CH3CO2, CF3CO2, or CF3SO3.
Abstract translation: 目的：提供使用咪唑鎓系离子溶剂，在低反应温度下短时间高收率地制备2,2,2-三氟乙醇的方法。 构成：2,2,2-三氟乙醇是通过在由式1表示的基于咪唑鎓的离子溶剂存在下水解1-氯-2,2,2-三氟乙烷和碱如锂的氢氧化物盐， 钠和钾，碳酸盐，乙酸盐和有机酸盐。 在该式中，R 1和R 2独立地为C 1 -C 8烷基或苄基，X为PF 6，BF 4，NO 3，NO 2，CH 3 CO 2，CF 3 CO 2或CF 3 SO 3。
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公开(公告)号：KR100383216B1
公开(公告)日：2003-05-12
申请号：KR1020000074615
申请日：2000-12-08
Applicant: 한국과학기술연구원
Abstract: The present invention relates to a catalyst for producing 1,1-difluoroethane (HCFC-152a) and producing method thereof. More particularly, it is to provide the catalyst prepared by impregnating palladium on the active carbon pretreated with an aqueous hydrogen fluoride solution and an aqueous hydrogen chloride solution in series and its use in the production of 1,1-difluoroethane (HCFC-142b) by dehydrochlorinating 1,1-difluoro-1-chloroethane at 240-300° C. in the supplying molar ratio of 2-6 (H2/HCFC-142b) with maximizing a selectivity toward the product of HCFC-152a.
Abstract translation: 本发明涉及制造1,1-二氟乙烷（HCFC-152a）的催化剂及其制造方法。 更具体地说，是提供一种通过在用氟化氢水溶液和氯化氢水溶液预处理过的活性炭上串联浸渍钯制备的催化剂及其在制备1,1-二氟乙烷（HCFC-142b）中的用途， 在240-300℃下将1,1-二氟-1-氯乙烷脱氯化氢; C.供应摩尔比为2-6（H 2 / HCFC-142b），同时使对HCFC-152a产物的选择性最大化。
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Patent Agency Ranking
公开(公告)号：KR1020030031664A
公开(公告)日：2003-04-23
申请号：KR1020010063409
申请日：2001-10-15
Applicant: 한국과학기술연구원
IPC: C23C22/00
CPC classification number: A61C8/0015 , A61K6/0235
Abstract: PURPOSE: A surface treatment method of forming a porous oxide coating film having superior biocompatibility with bone, chemical and physical stabilities, uniformed pore distribution, expanded pore size and smooth surface characteristics on the surface of implants comprising metallic titanium or titanium alloys is provided. CONSTITUTION: The electrochemical surface treatment method of implants comprising metallic titanium or titanium alloys comprises the processes of pre-treating the surface of implants comprising metallic titanium or titanium alloys; forming an oxide coating film on the surface of the implants by electrochemically oxidizing the pre-treated implants; and post-treating the formed oxide coating film with an acid or alkaline aqueous solution to obtain uniformed pore distribution, wherein the pre-treatment process comprises the steps of degreasing the implants using acetone or alcohol; water washing the implants taken out of the aqueous solution by taking the implants out of the aqueous solution after dipping the degreased implants into a NaOH aqueous solution or KOH aqueous solution having a concentration of 30 g/liter at 80 deg.C for 5 minutes, pickling the water washed implants in a solution comprising 15 mL of concentrate nitric acid having a concentration of 61 wt.%, 3 mL of hydrofluoric acid having a concentration of 49 wt.% and 82 mL of distilled water at an ordinary temperature for 5 minutes, and washing the implants with distilled water for 10 minutes.
Abstract translation: 目的：提供一种表面处理方法，其形成与骨的生物相容性优异，化学和物理稳定性，均匀的孔分布，扩大的孔径和在包含金属钛或钛合金的植入物的表面上的光滑表面特性的多孔氧化物涂膜。 构成：包含金属钛或钛合金的植入物的电化学表面处理方法包括预处理包含金属钛或钛合金的植入物表面的方法; 通过电化学氧化预处理的植入物在植入物的表面上形成氧化膜; 并用酸或碱性水溶液对形成的氧化物涂膜进行后处理以获得均匀的孔分布，其中预处理方法包括使用丙酮或醇对植入物进行脱脂的步骤; 在将脱脂植入物浸入浓度为30g /升的NaOH水溶液或KOH水溶液中，在80℃下浸渍5分钟后，将从水溶液中取出的植入物从水溶液中洗涤， 将含有浓度为61重量％的15mL浓缩硝酸，浓度为49重量％的3mL氢氟酸和82mL蒸馏水在常温下浸渍5分钟的溶液酸洗水洗种植体 ，并用蒸馏水清洗植入物10分钟。
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公开(公告)号：KR100305079B1
公开(公告)日：2001-09-12
申请号：KR1019980057664
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: 본 발명은 제 1 성분으로 디플루오로메탄(CH
3 F
2 , HFC-32)을 포함하고, 제 2 성분 및 제 3 성분으로 퍼플루오로프로판(C
3 F
8 , PFC-218)과 1,1-디플루오로에탄(CH
3 CHF
2 , HFC-152a), 또는 사이클로프로판(C
3 H
6 , RC-270)과 1,1,1,2,2-펜타플루오로프로판(CH
3 CF
2 CF
3 , HFC-245cb), 또는 부탄(C
4 H
10 , R-600)과 비스(디플루오로메틸)에테르(CHF
2 OCHF
2 , HFE-134)를 포함하는 HCFC-22 대체용 냉매 혼합물을 제공한다.-
公开(公告)号：KR1020010017822A
公开(公告)日：2001-03-05
申请号：KR1019990033527
申请日：1999-08-14
Applicant: 한국과학기술연구원
CPC classification number: D01D5/06 , D01D10/04 , D01D10/0481
Abstract: PURPOSE: A guidance system and a guidance method of fiber filament are provided which can lead spun fiber filament without dispersion and damage. CONSTITUTION: The guidance system is comprised of: an adapter controlling direction and speed of flow being coagulating solution; and a pump circulating and feeding the coagulating solution. The guidance method is comprised of: (a)discharging the fed coagulating solution through a nozzle or a split to a spreading funnel; (b) leading the coagulating solution and the fiber filament to a leading funnel by the discharge; and then (c)discharging the leaded coagulating solution and the leaded fiber filament through the spreading funnel at the lower speed than the (a) step.
Abstract translation: 目的：提供纤维长丝的引导系统和引导方法，可以使纺丝纤维丝不会分散和损坏。 构成：导向系统包括：适配器控制流动方向和速度为凝结液; 以及循环并供给凝结溶液的泵。 引导方法包括：（a）将进料的凝固溶液通过喷嘴或分流器排放到扩散漏斗; （b）通过放电使凝结溶液和纤维丝导向前漏斗; 然后（c）以比（a）步骤低的速度将引导的凝固溶液和含铅纤维细丝排出扩散漏斗。
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公开(公告)号：KR1020000004093A
公开(公告)日：2000-01-25
申请号：KR1019980025488
申请日：1998-06-30
Applicant: 한국과학기술연구원
IPC: C25B1/24
Abstract: PURPOSE: A fluorine manufacturing method is provided to prevent the explosive recombination of the fluorine and the hydrogen and to improve the fluorine manufacture efficiency. CONSTITUTION: The fluorine manufacturing method is formed by the steps of: electrolyzing the anhydrous fluoric acid by using the fused alkali metal fluoric acid compound as an electrolytic solution; and leading the electrolytic solution to naturally convert to a specific direction by installing a few louver-typed horizontal gap only on the upper area of the whole area of a cathode(2) and by using a plate on the lower area.
Abstract translation: 目的：提供氟制造方法以防止氟和氢的爆炸性复合并提高氟制造效率。 构成：氟制造方法通过以下步骤形成：使用熔融的碱金属氟酸化合物作为电解液来电解无水氟酸; 并且通过仅在阴极（2）的整个区域的上部区域上安装几个百叶窗型水平间隙并且通过在下部区域上使用板来引导电解液自然地转换成特定方向。
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公开(公告)号：KR100131047B1
公开(公告)日：1998-04-14
申请号：KR1019940016626
申请日：1994-07-11
Applicant: 한국과학기술연구원
IPC: B01J37/00
Abstract: The reactive catalyst for synthesizing 1,1,1,2-tetrafluoroethane(HFC-134a) is prepared by (1) reacting magnesium chromate(MgCrO4) or magnesium dichromate(MgCrO2) with hydrogen fluorine(HF) and ethanol, (2) filtering, drying and burning the reacted product. The produced catalyst remarkably lowers inactivation speed.
Abstract translation: 用于合成1,1,1,2-四氟乙烷（HFC-134a）的反应催化剂是通过（1）使铬酸铬（MgCrO4）或重铬酸镁（MgCrO 2）与氢氟（HF）和乙醇反应，（2）过滤 ，干燥并燃烧反应产物。 生成的催化剂显着降低灭活速度。
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