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公开(公告)号：KR1020010074658A
公开(公告)日：2001-08-04
申请号：KR1020010034611
申请日：2001-06-19
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/112 , C09K2205/12 , C09K2205/122 , C09K2205/43
Abstract: PURPOSE: A refrigerant composition is provided which shows the similar performance to HCFC-22 that is currently used by additionally mixing one constituent from RC-270, HFC-227ea, HFC-245cb, HFC-236ea, R-600, HFE-134 or HFE-245 to a mixture of HFC-32 and HFC-143a. CONSTITUTION: In a composition of a refrigerant mixture which can be used instead of HCFC-22, the refrigerant mixture comprises 20 to 70 wt.% of difluoromethane (CH3F2, HFC-32) as a first constituent, 10 to 70 wt.% of 1,1,1-trifluoroethane (CH3CF3, CFC-143a) as a second constituent, and 45 wt.% or less of cyclopropane (C3H6, RC-270) or butane (C4H10, R-600) as a third constituent, wherein each of the HFC-32, HFC-143a and RC-270 comprise 20 to 40 wt.%, 30 to 70 wt.% and 30 wt.% or less respectively, and wherein each of the HFC-32, HFC-143a and R-600 comprise 30 to 50 wt.%, 38 to 70 wt.% and 12 wt.% or less respectively.
Abstract translation: 目的：提供了一种制冷剂组合物，其显示了与通过额外混合来自RC-270，HFC-227ea，HFC-245cb，HFC-236ea，R-600，HFE-134的一种成分或目前使用的HCFC-22类似的性能 HFE-245与HFC-32和HFC-143a的混合物。 构成：在可用于代替HCFC-22的制冷剂混合物的组合物中，制冷剂混合物包含20至70重量％的作为第一组分的二氟甲烷（CH 3 F 2，HFC-32），10至70重量％ 作为第二成分的1,1,1-三氟乙烷（CH 3 CF 3，CFC-143a）和作为第三成分的环丙烷（C 3 H 6，RC-270）或丁烷（C 4 H 10，R-600）45重量％ HFC-32，HFC-143a和RC-270中的每一个分别包含20至40重量％，30至70重量％和30重量％或更少，并且其中每个HFC-32，HFC-143a和 R-600分别包含30至50重量％，38至70重量％和12重量％或更少。
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公开(公告)号：KR1020000041711A
公开(公告)日：2000-07-15
申请号：KR1019980057665
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/11 , C09K2205/112 , C09K2205/12 , C09K2205/43
Abstract: PURPOSE: A refrigerant mixture added one component of RC-270, HFC-227ea, HFC-245cb, HFC-236ea, R-600, HFE-134, and HFE-245 to a mixture of HFC-32 and HFC-143a additionally is provided which exhibits performance similar to HCFC-22. CONSTITUTION: A refrigerant mixture free from ozonosphere destruction danger, which can be used as a substitute for chlorodifluoromethane(CHClF2) comprises difluoromethane(CH3F2, HFC-32) as a first component, 1,1,1-trifluoroethane(CH3CF3, HFC-143a) as a second component and one component selected from the group of 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-235ea), butane(C4H10, R-600), bis(difluoromethyl)ether(CHF2OCHF2, HFE-134), and pentafluoroethylmethylether(CF3CF2OCH3, HFC-245) as a third component. The composition of HFC-32, HFC-143a and RC-270 is 20 to 40% by weight, 30 to 70% by weight and 0 to 30% by weight respectively.
Abstract translation: 目的：将HFC-32，HFC-227ea，HFC-245cb，HFC-236ea，R-600，HFE-134和HFE-245的一个组分加入到HFC-32和HFC-143a的混合物中， 具有类似于HCFC-22的性能。 构成：可用作替代氯二氟甲烷（CHClF 2）的不含臭氧层破坏危险的制冷剂混合物包括作为第一组分的二氟甲烷（CH 3 F 2，HFC-32），1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a ）作为第二成分和选自1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea），1,1,1,2,3,3-六氟丙烷（ CHF2CHFCF3，HFC-235ea），丁烷（C4H10，R-600），双（二氟甲基）醚（CHF2OCHF2，HFE-134）和五氟乙基甲基醚（CF3CF2OCH3，HFC-245）作为第三成分。 HFC-32，HFC-143a和RC-270的组成分别为20〜40重量％，30〜70重量％，0〜30重量％。
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公开(公告)号：KR1019990048893A
公开(公告)日：1999-07-05
申请号：KR1019970067717
申请日：1997-12-11
Applicant: 한국과학기술연구원
IPC: C11B1/10
Abstract: 본 발명은 초임계상태의 이산화 탄소를 이용하여 벼의 미강으로부터 유지를 추출하는 방법에 관한 것으로, 미강이 들어있는 추출기에 고압·고밀도의 초임계상태 이산화탄소를 통과시킴으로써 이 이산화탄소가 미강중에 함유되어 있는 유지를 용해시켜 추출하도록 하는 것이다. 본발명에 따른 유지 추출 방법은 이산화탄소를 용매로 사용하므로, 유지중 유해물질의 잔류 문제가 없고 기존 방법보다 상대적으로 낮은 온도에서 유지가 추출될 수 있으며 유지가 이산화탄소에 의해 항시 공기로부터 차단되므로, 추출시에 유지성분의 열분해와 산화가 수반되지 않는 장점이 있다.
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公开(公告)号：KR100184382B1
公开(公告)日：1999-05-15
申请号：KR1019960015767
申请日：1996-05-13
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: 본 발명은 사염화 주석촉매 1리터 당 VCM을 1시간에 0.3~1.5몰의 속도로, 무수 불화수소산은 VCM 1몰에 대해 2.9~5.0몰의 속도로 공급하고, 두 반응물을 가열하여 기체상태로 반응기에 공급하며, 0.4~2.0MPa의 압력과 50~120℃의 반응기 온도 그리고 20~40℃의 반응응축기에서 연속적으로 액상반응 시키는 것을 특징으로 하여 HFC-152a를 제조하는 방법에 관한 것 임.
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公开(公告)号：KR1019970074735A
公开(公告)日：1997-12-10
申请号：KR1019960015767
申请日：1996-05-13
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: 본 발명은 사염화 주석촉매 1리터 당 VCM을 1시간에 0.3∼1.5몰의 속도로, 무수 불화수소산은 VCM 1몰에 대해 2.0∼5.0몰의 속도로 공급하고, 두 반응물을 가열하여 기체상태로 반응기에 공급하며, 0.4∼2.0MPa의 압력과 50∼120℃의 반응기 온도 그리고 20∼40℃의 반응응축기에서 연속적으로 액상반응시키는 것을 특징으로 하여 HFC-152a를 제조하는 방법에
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Patent Agency Ranking
公开(公告)号：KR100463232B1
公开(公告)日：2004-12-23
申请号：KR1020010063114
申请日：2001-10-12
Applicant: 한국과학기술연구원
IPC: B22F3/04
CPC classification number: B22F3/225 , B22F3/1025 , B22F2998/00 , B22F2999/00 , C04B35/63 , C04B35/632 , C04B35/634 , C04B35/63408 , C04B35/638 , C04B2235/3847 , C04B2235/405 , C04B2235/5436 , C04B2235/6022 , B22F2202/03 , B22F2201/04
Abstract: 분말사출성형법 또는 압축성형법에 의해 제조되는 성형물 내의 주결합제를 제거하기 위하여 이산화탄소와 프로판의 초임계 혼합유체를 탈지용매로 이용하여 결합제 중 주결합제인 왁스류의 탈지방법에 관한 것이다.
Abstract translation: 在从成型部件除去蜡材料的方法中，从通过粉末注射成型法或压缩成型法制造的成型部件除去主要粘合剂蜡，使用二氧化碳和丙烷的超临界混合流体作为 一种脱蜡溶剂。
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公开(公告)号：KR100430905B1
公开(公告)日：2004-05-10
申请号：KR1020010048548
申请日：2001-08-11
Applicant: 한국과학기술연구원
IPC: C08F38/00
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for preparing dimethyl dipropargylmalonate polymer having the hexagonal ring structure is provided, to reduce the pollution due to an organic solvent and to prevent the production of two different structured cyclic polymers by not using an organic solvent. CONSTITUTION: The method comprises the step of cyclic polymerizing dimethyl dipropargylmalonate monomer by using supercritical or subcritical carbon dioxide as a solvent in the presence of a transition metal chloride catalyst. Preferably the reaction temperature is 15-100 deg.C, the reaction pressure is 50-400 atm, and the reaction time is 24 hours or less.
Abstract translation: 目的：提供一种制备具有六方环结构的二炔丙基丙二酸二甲酯聚合物的方法，以减少由有机溶剂引起的污染并防止不使用有机溶剂产生两种不同结构的环状聚合物。 构成：该方法包括在过渡金属氯化物催化剂存在下，通过使用超临界或亚临界二氧化碳作为溶剂使二炔丙基丙二酸二甲酯单体循环聚合的步骤。 优选反应温度为15-100℃，反应压力为50-400atm，反应时间为24小时或更短。
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公开(公告)号：KR1020030014518A
公开(公告)日：2003-02-19
申请号：KR1020010048548
申请日：2001-08-11
Applicant: 한국과학기술연구원
IPC: C08F38/00
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for preparing dimethyl dipropargylmalonate polymer having the hexagonal ring structure is provided, to reduce the pollution due to an organic solvent and to prevent the production of two different structured cyclic polymers by not using an organic solvent. CONSTITUTION: The method comprises the step of cyclic polymerizing dimethyl dipropargylmalonate monomer by using supercritical or subcritical carbon dioxide as a solvent in the presence of a transition metal chloride catalyst. Preferably the reaction temperature is 15-100 deg.C, the reaction pressure is 50-400 atm, and the reaction time is 24 hours or less.
Abstract translation: 目的：提供一种制备具有六方环结构的二丙炔丙二酸二甲酯聚合物的方法，以减少由于有机溶剂引起的污染，并且通过不使用有机溶剂来防止两种不同的结构化环状聚合物的生成。 构成：该方法包括在过渡金属氯化物催化剂存在下，使用超临界或亚临界二氧化碳作为溶剂环状聚合二丙酰丙基丙二酸二甲酯的步骤。 反应温度优选为15-100℃，反应压力为50-400atm，反应时间为24小时以下。
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公开(公告)号：KR1020020064026A
公开(公告)日：2002-08-07
申请号：KR1020010004622
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/122 , C09K2205/22 , C09K2205/43 , F25B9/006
Abstract: PURPOSE: Provided is a coolant composition containing difluoromethane, 1,1,1-trifluoroethane, and 1,1-difluoroethane, which is substituted for chlorodifluoromethane(CHClF2, HCFC-22) and dose not contain the material destroying an ozone layer. CONSTITUTION: The coolant composition comprises 20-70wt% of the difluoromethane(CH2F2, HFC-32), 10-50wt% of the 1,1,1-trifluoroethane(CH3CF3, HFC-143a), 10-40wt% of the 1,1-difluoroethane(CH3CHF2, HFC-152a), and 10-30wt% of 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea) or 5-15wt% of isobutane(CH(CH3)2CH3, R-600a). Or the coolant composition comprises 30-70wt% of the difluoromethane(CH2F2, HFC-32), 10-40wt% of the 1,1,1-trifluoroethane(CH3CF3, HFC-143a), 10-40wt% of the 1,1-difluoroethane(CH3CHF2, HFC-152a), and 10-20wt% of 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-236ea).
Abstract translation: 目的：提供含有二氟甲烷，1,1,1-三氟乙烷和1,1-二氟乙烷的冷却剂组合物，其代替氯二氟甲烷（CHClF 2，HCFC-22），并且不含破坏臭氧层的材料。 构成：冷却剂组合物包含20-70重量％的二氟甲烷（CH 2 F 2，HFC-32），10-50重量％的1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a），10-40重量％ （CH 3 CHF 2，HFC-152a）和10-30重量％的1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea）或5-15重量％的异丁烷（CH（CH 3） ）2CH3，R-600a）。 或者冷却剂组合物包含30-70重量％的二氟甲烷（CH 2 F 2，HFC-32），10-40重量％的1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a），10-40重量％的1,1 （CH 3 CHF 2，HFC-152a）和10〜20重量％的1,1,1,2,3,3-六氟丙烷（CHF 2 CHFCF 3，HFC-236ea）。
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40.发明公开디플루오로메탄(ＨＦＣ-３２),펜타플루오로에탄(ＨＦＣ-１２５)과１,１,１,２-테트라플루오로에탄(ＨＦＣ-１３４ａ)을포함하는 냉매 혼합물 失效包含二氟甲磺酸的制冷混合物（HFC-32），二氟甲烷（HFC-125），1,1,1,2-四氢呋喃（HFC-134A）
公开(公告)号：KR1020010044992A
公开(公告)日：2001-06-05
申请号：KR1019990048069
申请日：1999-11-02
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/12 , C09K2205/43
Abstract: PURPOSE: A refrigerants mixture containing HFC-32, HFC-125, HFC-134A is provided to substitute HCFC-22(chlorodifluoromethane, CHClF2) by maintaining identical working effect without risk of ozone layer destruction. CONSTITUTION: The refrigerant mixture comprises difluoromethane(CH2F2, HFC-32) as first component; pentafluoroethane(CHF2CF3, HFC-125) as second component; 1,1,1,2-tetrafluoroethane(CH2FCF3, HFC-134A) as third component; one component selected from cyclopropane(C3H6, RC-270), 1,1-difluoroethane(CH3CHF2, HFC-152a), 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb), octafluorocyclobutane(C4F8, RC-318), 1,1,1,2,3,3-hexafluoro propane(CHF2CHFCH3, HFC-236ea), bis(difluoromethyl)ether(CHF2OCHF2, HFE-134), pentafluoroethylmethylether (CF3CF2OCH3, HFE-245), n-pentane(C5H12, R601), isopentane((CH3)2CHCH2CH3, R601a) as fourth component.
Abstract translation: 目的：提供含有HFC-32，HFC-125，HFC-134A的制冷剂混合物，通过维持相同的工作效果来代替HCFC-22（氯二氟甲烷，CHClF2），而不会破坏臭氧层的风险。 构成：制冷剂混合物包含作为第一成分的二氟甲烷（CH 2 F 2，HFC-32） 五氟乙烷（CHF 2 CF 3，HFC-125）作为第二成分; 作为第三成分的1,1,1,2-四氟乙烷（CH 2 CFF 3，HFC-134A） 一种选自环丙烷（C 3 H 6，RC-270），1,1-二氟乙烷（CH 3 CHF 2，HFC-152a），1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea），1 ，1,1,2,2-五氟丙烷（CH 3 CF 2 CF 3，HFC-245cb），八氟环丁烷（C 4 F 8，RC-318），1,1,1,2,3,3-六氟丙烷（CHF 2 CHFCH 3，HFC-236ea），双 （二氟甲基）醚（CHF 2 OCHF 2，HFE-134），五氟乙基甲基醚（CF 3 CF 2 OCH 3，HFE-245），正戊烷（C5H12，R601），异戊烷（（CH 3）2 CHCH 2 CH 3，R 601a）
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