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公开(公告)号：KR100503890B1
公开(公告)日：2005-07-26
申请号：KR1020020061272
申请日：2002-10-08
Applicant: 한국과학기술연구원
IPC: C08G63/81
CPC classification number: C08G63/64 , C08G63/08 , C08G63/6882 , C08G63/81 , C08G63/823 , Y02P20/544 , Y10T428/2982
Abstract: 본 발명은 생분해성 고분자 소재의 중합에 있어서, 압축기체(compressed gas)를 반응 용매로 사용하여 용액 중합하여, 입자크기가 0.01 ~ 1000 ㎛인 미세 분말 형태의 고분자량 생분해성 단일중합 폴리에스테르 및 공중합 폴리에스테르를 제조하는 방법에 관한 것이다.
본 발명의 생분해성 폴리에스테르의 제조방법은 락티드(Lactide)와 글리콜리드(Glycolide) 등을 포함하는 화합물과 카프로락톤으로 이루어지는 군 중에서 선택되는 화합물 및 이들의 혼합물로 된 단량체를 개시제 및 유기금속촉매와 함께 압축기체의 존재 하에서 용액 중합시킴으로써, 지방족 생분해성 폴리에스테르를 중합하고 미세 분말 또는 구형의 입자형태의 지방족 생분해성 폴리에스테르 및 공중합 폴리에스테르를 제조하는 것을 특징으로 한다.-
公开(公告)号：KR1020040031970A
公开(公告)日：2004-04-14
申请号：KR1020020061272
申请日：2002-10-08
Applicant: 한국과학기술연구원
IPC: C08G63/81
CPC classification number: C08G63/64 , C08G63/08 , C08G63/6882 , C08G63/81 , C08G63/823 , Y02P20/544 , Y10T428/2982
Abstract: PURPOSE: A method for producing a biodegradable polyester polymer in a particulate form, is provided to simplify a conventional complicated process by excluding a milling process or use of any special device, and prevent discharge of hazardous solvents to environment. CONSTITUTION: The method for producing a biodegradable polyester polymer in a particulate form comprises the steps of: charging at least one cyclic monomer into a high pressure reactor; adding an organometallic or acid catalyst and an initiator; injecting compressed gas as a solvent, selected from the group consisting of HFC-23, HFC-32, HFC-152a, HFC-143a, HFC-134a, HFC-125, HFC-227ea, HFC-236fa, HFC-245fa, HFC-254cb, SF6, HFC-4-10-mee, C-318(perfluoro cyclobutane), HCFC-22, HCFC-1416, HCFC-1426, HCFC-225ca/cb, dimethyl ether, N2O, propane, butane, a mixture thereof and a mixture further comprising CO2 and the above mixture, into the reactor; and carrying out solution polymerization.
Abstract translation: 目的：提供一种以颗粒形式生产可生物降解的聚酯聚合物的方法，以通过排除铣削过程或使用任何特殊装置来简化常规的复杂工艺，并且防止有害溶剂排放到环境中。 构成：以颗粒形式生产可生物降解的聚酯聚合物的方法包括以下步骤：将至少一种环状单体装入高压反应器中; 加入有机金属或酸催化剂和引发剂; 注入压缩气体作为溶剂，选自HFC-23，HFC-32，HFC-152a，HFC-143a，HFC-134a，HFC-125，HFC-227ea，HFC-236fa，HFC-245fa，HFC -254cb，SF6，HFC-4-10-mee，C-318（全氟环丁烷），HCFC-22，HCFC-1416，HCFC-1426，HCFC-225ca / cb，二甲醚，N2O，丙烷，丁烷， 并将进一步包含CO 2和上述混合物的混合物加入到反应器中; 并进行溶液聚合。
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3.发明授权
公开(公告)号：KR100400345B1
公开(公告)日：2003-10-04
申请号：KR1020010004622
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: C09K5/04
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：提供一种含有二氟甲烷，1,1,1-三氟乙烷和1,1-二氟乙烷的冷却剂组合物，它代替氯二氟甲烷（CHClF2，HCFC-22）并且不含破坏臭氧层的材料。 组成：冷却剂组合物包含20-70wt％的二氟甲烷（CH 2 F 2，HFC-32），10-50wt％的1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a），10-40wt％ （CH 3 CHF 2，HFC-152a）和10-30wt％的1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea）或5-15wt％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10-20wt％的1,1,1,2,3,3-六氟丙烷（CHF 2 CHFCF 3，HFC-236ea）。
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4.发明授权디플루오로메탄과 1,1,1-트리플루오로에탄과1,1,1,2-테트라플루오로에탄을 함유하는 냉매 조성물 失效디플루오로메탄과1,1,1-트리플루오로에탄과1,1,1,2-테트라플루오로에탄을함유하는냉매조성물물
公开(公告)号：KR100400344B1
公开(公告)日：2003-10-04
申请号：KR1020010004621
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: PURPOSE: Provided is a coolant composition containing difluoromethane, 1,1,1-trifluoroethane, and 1,1,1,2-tetrafluoroethane, which is a substitute for chlorodifluoromethane(CHClF2, HCFC-22) and dose not contain the material destroying an ozone layer. CONSTITUTION: The coolant composition comprises: the difluoromethane(CH2F2, HFC-32); the 1,1,1-trifluoroethane(CH3CF3, HFC-143a); the 1,1,1,2-tetrafluoroethane(CH2FCF3, HFC-134a); a compound selected from the group consisting of 1,1-difluoroethane(CH3CHF2, HFC-152a), 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-236ea), and butane(C4H10, R-600). The composition of HFC-32, HFC-143a, HFC-134a, and HFC-152a is 20-70wt%, 10-50wt%, 10-50wt%, and 10-40wt%.
Abstract translation: 目的：提供一种含有二氟甲烷，1,1,1-三氟乙烷和1,1,1,2-四氟乙烷的冷却剂组合物，它是氯二氟甲烷（CHClF2，HCFC-22）的替代物，并且不含有破坏 臭氧层。 构成：冷却剂组合物包含：二氟甲烷（CH 2 F 2，HFC-32）; 1,1,1-三氟乙烷（CH3CF3，HFC-143a）; 1,1,1,2-四氟乙烷（CH2FCF3，HFC-134a）; 选自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），1,1,1,2-四氟乙烷 （CHF 2 CHFCF 3，HFC-236ea）和丁烷（C 4 H 10，R-600）。 HFC-32，HFC-143a，HFC-134a和HFC-152a的组成为20-70wt％，10-50wt％，10-50wt％和10-40wt％。
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5.发明公开
公开(公告)号：KR1020020064025A
公开(公告)日：2002-08-07
申请号：KR1020010004621
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 1,1,1,2-tetrafluoroethane, which is a substitute for chlorodifluoromethane(CHClF2, HCFC-22) and dose not contain the material destroying an ozone layer. CONSTITUTION: The coolant composition comprises: the difluoromethane(CH2F2, HFC-32); the 1,1,1-trifluoroethane(CH3CF3, HFC-143a); the 1,1,1,2-tetrafluoroethane(CH2FCF3, HFC-134a); a compound selected from the group consisting of 1,1-difluoroethane(CH3CHF2, HFC-152a), 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-236ea), and butane(C4H10, R-600). The composition of HFC-32, HFC-143a, HFC-134a, and HFC-152a is 20-70wt%, 10-50wt%, 10-50wt%, and 10-40wt%.
Abstract translation: 目的：提供含有二氟甲烷，1,1,1-三氟乙烷和1,1,1,2-四氟乙烷的冷却剂组合物，其代替氯二氟甲烷（CHClF 2，HCFC-22），并且不含有破坏 臭氧层。 构成：冷却剂组合物包括：二氟甲烷（CH 2 F 2，HFC-32）; 1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a）; 1,1,1,2-四氟乙烷（CH2FCF3，HFC-134a）; 选自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， 2,3,3-六氟丙烷（CHF 2 CHFCF 3，HFC-236ea）和丁烷（C 4 H 10，R-600）。 HFC-32，HFC-143a，HFC-134a和HFC-152a的组成为20-70wt％，10-50wt％，10-50wt％和10-40wt％。
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Patent Agency Ranking
公开(公告)号：KR100340186B1
公开(公告)日：2002-06-12
申请号：KR1019990049666
申请日：1999-11-10
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/112 , C09K2205/12 , C09K2205/22 , C09K2205/43
Abstract: 제 1 성분으로디플루오로메탄, 제 2 성분으로펜타플루오로에탄, 제 3 성분으로 1,1,1-트리플루오로에탄을포함하고, 제 4 성분으로사이클로프로판, 1,1,1,2,3,3,3-헵타플루오로프로판, 1,1,1,2,2-펜타플루오로프로판, 이소부탄, 옥타플루오로사이클로부탄, 1,1,1,2,3,3-헥사플루오로프로판, 부탄, 비스(디플루오로메틸)에테르및 펜타플루오로에틸메틸에테르로이루어진군 중에서선택된어느한 성분을포함하는 HCFC-22 대체용새로운냉매혼합물을제공한다.
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公开(公告)号：KR100333503B1
公开(公告)日：2002-04-25
申请号：KR1020010034611
申请日：2001-06-19
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: 본발명은제 1 성분으로디플루오로메탄(CHF, HFC-32), 제 2 성분으로 1,1,1-트리플루오로에탄(CHCF, HFC-143a)를포함하고, 제 3 성분으로사이클로프로판(CH, RC-270), 1,1,1,2,3,3,3-헵타플루오로프로판(CFCHFCF, HFC-227ea), 1,1,1,2,2-펜타플루오로프로판(CHCFCF, HFC-245cb), 1,1,1,2,3,3-헥사플루오로프로판(CHFCHFCF, HFC-236ea), 부탄(CH, R-600), 비스(디플루오로메틸)에테르(CHFOCHF, HFE-134) 및펜타플루오로에틸메틸에테르(CFCFOCH, HFE-245)로이루어진군 중에서선택된어느한 성분으로이루어진 HCFC-22 대체용냉매혼합물을제공한다.
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公开(公告)号：KR1020010046069A
公开(公告)日：2001-06-05
申请号：KR1019990049666
申请日：1999-11-10
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/112 , C09K2205/12 , C09K2205/22 , C09K2205/43
Abstract: PURPOSE: A refrigerant mixture containing difluoromethane, pentafluoroethane, 1,1,1-trifluoroethane is provided to substitute HCFC-22(chlorodifluoromethane, CHClF2) without worry of use restraint as being no 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-trifluoro ethane(CH3CF3, HFC-143a) as third component; one component selected from cyclopropane(C3H6, RC-270), 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane(CH3CF2CF3, HFC-245cb), isobutane(CH(CH3)2CH3, R-600a), octafluorocyclobutane(C4F8, RC-318), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC- 236ea), butane(C4H10, R-600), bis(difluoromethyl)ether(CHF2OCHF2, HFE-134), penta fluoroethylmethylether(CF3CF2OCH3, HFE-245).
Abstract translation: 目的：提供含有二氟甲烷，五氟乙烷，1,1,1-三氟乙烷的制冷剂混合物，代替HCFC-22（氯二氟甲烷，CHClF2），不用担心使用限制，因为没有臭氧层破坏的风险。 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1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a） 选自环丙烷（C 3 H 6，RC-270），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），异丁烷（CH（CH3）2CH3，R-600a），八氟环丁烷（C4F8，RC-318），1,1,1,2,3,3-六氟丙烷（CHF2CHFCF3，HFC-236ea），丁烷 C4H10，R-600），双（二氟甲基）醚（CHF2OCHF2，HFE-134），五氟乙基甲基醚（CF 3 CF 2 OCH 3，HFE-245）。
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公开(公告)号：KR1020050057852A
公开(公告)日：2005-06-16
申请号：KR1020030090061
申请日：2003-12-11
Applicant: 한국과학기술연구원
IPC: C09K15/04
CPC classification number: C09K5/045 , C09K2205/12 , C09K2205/122 , C09K2205/47
Abstract: 본 발명은 지구의 오존층을 파괴하는 것으로 알려진 R-502를 대체하기 위한 저온용 냉매 조성물에 관한 것으로, 지구의 오존층을 파괴하는 CFC나 HCFC를 함유하지 않은 새로운 냉매 조성물을 제공하는 것이 목적이다.
상기 목적을 달성하기 위한 본 발명의 냉매 조성물은, 디플루오로메탄 (CH
2 F
2 , 이하 HFC-32라 함)과; 1,1,1-트리플루오로에탄 (CH
3 CF
3 , 이하 HFC-143a라 함)과; 사이클로프로판 (C
3 H
6 , 이하 RC-270라 함) 또는 프로판 (C
3 H
8 , 이하 R-290라 함) 중에서 선택되는 하나의 화합물로 이루어진다.-
公开(公告)号：KR1020040090348A
公开(公告)日：2004-10-22
申请号：KR1020030024497
申请日：2003-04-17
Applicant: 한국과학기술연구원
IPC: C07C51/285
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for synthesizing terephthalic acid using a subcritical or supercritical fluid as a reaction medium is provided to reduce toxicity and erosion in a manufacturing device owing to excluding the use of a catalyst, thereby being safer and more economic as compared to the conventional methods. CONSTITUTION: The method for synthesizing terephthalic acid which includes the oxidization of para-xylene comprises the use of excessive amount of a subcritical or a supercritical fluid as a reaction medium and hydrogen peroxide or oxygen as an oxidizing agent for partial oxidization of para-xylene contained in a tank(A11), while excluding the use of a catalyst. The oxidization of para-xylene is carried out at 240-400deg.C under 220-300bar in a reactor(A4).
Abstract translation: 目的：提供使用亚临界或超临界流体作为反应介质合成对苯二甲酸的方法，以减少制造装置中的毒性和侵蚀，这是因为排除使用催化剂，因此与常规方法相比更安全和更经济 。 构成：包括对二甲苯氧化的对苯二甲酸的合成方法包括使用过量的亚临界流体或超临界流体作为反应介质，过氧化氢或氧气作为用于部分氧化对二甲苯的氧化剂 在罐中（A11），而不使用催化剂。 对二甲苯的氧化在240-400℃在220-300巴下在反应器（A4）中进行。
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