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公开(公告)号：KR1020060104472A
公开(公告)日：2006-10-09
申请号：KR1020050026679
申请日：2005-03-30
Applicant: 한국화학연구원 , 롯데케미칼 주식회사
IPC: C07D319/12
Abstract: 본 발명은 조 파라-디옥사논으로부터 고순도 파라-디옥사논의 정제방법에 관한 것으로서, 더욱 상세하게는 디에틸렌 글리콜의 탈수소환원반응으로 파라-디옥사논을 합성하는 공정에서 얻어지며, 불순물을 포함하는 조 파라-디옥사논으로부터 테트라하이드로퓨란(THF, tetrahydrofuran), 에틸아세테이트(EA, ethyl acetate), 메탄올(methanol), 에탄올(ethanol), 이소프로필알콜(IPA, isoprophyl alcohol), 아세톤(acetone) 등의 용매를 사용하여 용액 경막 결정화, 용융 경막 결정화 과정 및 진공 증류 과정을 차례로 수행하여 99.99 중량% 이상의 고순도와 70 중량% 이상의 고수율을 갖는 파라-디옥사논을 정제하는 방법에 관한 것이다.
조 파라-디옥사논, 파라-디옥사논, 고순도 정제, 경막-결정화, 테트라하이드로퓨란, 에틸아세테이트-
公开(公告)号：KR100599253B1
公开(公告)日：2006-07-13
申请号：KR1020040047808
申请日：2004-06-24
Applicant: 한국화학연구원
IPC: C08L101/00 , C08L101/04 , B82Y40/00
Abstract: 본 발명은 무기 아세테이트의 열분해에 의한 무기나노입자/폴리머 복합체의 제조방법에 관한 것으로서, 더욱 상세하게는 폴리머를 고비점 오일상에 용융시킨 후에 여기에 무기 아세테이트가 용해된 빙초산 수용액을 일정 속도로 적하시키면 아세테이트염이 순간적으로 열분해반응을 동반하여 무기산화물 형태의 나노입자가 생성됨으로써 폴리머 메트릭스 내에 5 ∼ 30 nm의 크기의 무기나노입자가 고함량 범위로 균일하게 분산되어 존재하게 되는 무기나노입자/폴리머 복합체를 제조하는 방법에 관한 것이다.
무기 아세테이트, 열분해, 무기나노입자/폴리머 복합체-
公开(公告)号：KR1020050123264A
公开(公告)日：2005-12-29
申请号：KR1020040047808
申请日：2004-06-24
Applicant: 한국화학연구원
IPC: C08L101/00 , C08L101/04 , B82Y40/00
Abstract: 본 발명은 무기 아세테이트의 열분해에 의한 무기나노입자/폴리머 복합체의 제조방법에 관한 것으로서, 더욱 상세하게는 폴리머를 고비점 오일상에 용융시킨 후에 여기에 무기 아세테이트가 용해된 빙초산 수용액을 일정 속도로 적하시키면 아세테이트염이 순간적으로 열분해반응을 동반하여 무기산화물 형태의 나노입자가 생성됨으로써 폴리머 메트릭스 내에 5 ∼ 30 nm의 크기의 무기나노입자가 고함량 범위로 균일하게 분산되어 존재하게 되는 무기나노입자/폴리머 복합체를 제조하는 방법에 관한 것이다.
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公开(公告)号：KR100463020B1
公开(公告)日：2004-12-23
申请号：KR1020020046990
申请日：2002-08-09
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for preparing an acryl-based polymer nano water dispersion is provided, to improve the environmental-friendliness of the acryl-based polymer nano water dispersion used in polymer cement and the tensile strength of the polymer cement. CONSTITUTION: The method comprises the steps of stirring the mixture comprising 45-55 parts by weight of an acryl-based monomer, 0.8-1.2 parts by weight of polyoxyethylene lauryl ether represented by C12H25O(C2H4O)nH (wherein n is 21-50) as a nonionic surfactant and 25-35 parts by weight distilled water at a temperature of 40-70 deg.C to prepare a stable monomer emulsion; stirring the mixture comprising 35-45 parts by weight of distilled water and 0.04-0.06 parts by weight of an anionic surfactant at a temperature of 60-80 deg.C and adding 0.2-1.5 parts by weight of an initiator to prepare an aqueous solution mixture; and continuously dropping the monomer emulsion to the aqueous solution mixture to perform the emulsion polymerization. The obtained acryl-based polymer nano water dispersion has a particle size of 315-350 nm and a polymer solid content of 37-41 wt%.
Abstract translation: 目的：提供一种制备基于丙烯酰基的聚合物纳米水分散体的方法，以改善聚合物水泥中使用的基于丙烯酰基的聚合物纳米水分散体的环境友好性和聚合物水泥的拉伸强度。 构成：该方法包括如下步骤：搅拌包含45-55重量份丙烯酸类单体，0.8-1.2重量份由C 12 H 25 O（C 2 H 4 O）n H表示的聚氧乙烯月桂醚（其中n为21-50） 作为非离子表面活性剂和25-35重量份的蒸馏水，在40-70℃的温度下制备稳定的单体乳液; 在60〜80℃的温度下搅拌包含35〜45重量份蒸馏水和0.04〜0.06重量份阴离子表面活性剂的混合物，并加入0.2〜1.5重量份引发剂以制备水溶液 混合物; 并将单体乳液连续滴加到水溶液混合物中进行乳液聚合。 所得到的丙烯酸类聚合物纳米水分散体的粒径为315〜350nm，聚合物固体成分为37〜41重量％。
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公开(公告)号：KR1020040051775A
公开(公告)日：2004-06-19
申请号：KR1020020079440
申请日：2002-12-13
Applicant: 한국화학연구원
IPC: C07C17/269
Abstract: PURPOSE: A method for preparing dichloroiodoperfluorobutane by using a low temperature radical initiator is provided, to improve the stability of process, to reduce the cost of apparatus and to enhance conversion rate and yield. CONSTITUTION: The method comprises the step of mixing dichloroiodoperfluoroethane and tetrafluoroethylene with a low temperature radical initiator to prepare dichloroiodoperfluorobutane by telomerization, wherein the radical initiator has a half life of 1-15 hours at a temperature of -1- deg.C or less and the telomerization is carried out at a temperature of 35-80 deg.C and a pressure of 7-10 atom. Preferably the low temperature radical initiator is selected from the group consisting of diisopropyl peroxydicarbonate, t-butyl peroxypivalate and t-butyl peroxy-2-ethylhexanoate.
Abstract translation: 目的：提供使用低温自由基引发剂制备二氯二氟全氟丁烷的方法，以提高工艺的稳定性，降低设备成本，提高转化率和产率。 方案：该方法包括将二氯二氟代全氟乙烷和四氟乙烯与低温自由基引发剂混合以通过调聚制备二氯代全氟丁烷的步骤，其中自由基引发剂在-1℃或更低的温度下具有1-15小时的半衰期， 调聚在35-80℃的温度和7-10个原子的压力下进行。 优选地，低温自由基引发剂选自过氧化二碳酸二异丙酯，过氧化新戊酸叔丁酯和过氧-2-乙基己酸叔丁酯。
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Patent Agency Ranking
公开(公告)号：KR100435520B1
公开(公告)日：2004-06-10
申请号：KR1020020014696
申请日：2002-03-19
Applicant: 한국화학연구원
IPC: C08F6/12
Abstract: PURPOSE: A method for preparing a spherical low molecular weight polyethylene wax is provided, to simplify the reaction and to reduce the cost by using no polymerization catalyst and employing no pulverizing or separating process. CONSTITUTION: The method comprises the steps of heating a low molecular weight polyethylene wax at a temperature above a melting point to evaporate the unreacted oil component contained in the wax and to remove the deposited ash; dissolving the low molecular weight polyethylene wax in a good solvent to prepare a transparent homogeneous solution; heating a non-solvent having no dissolving power to the low molecular weight polyethylene wax, at a temperature above a melting point of the low molecular weight polyethylene wax; mixing the homogeneous solution and the non-solvent; cooling the obtained mixture to a temperature below the crystallization temperature of the low molecular weight polyethylene wax to prepare an emulsion by emulsion crystallization; and filtering the emulsion to obtain a spherical low molecular weight polyethylene wax, washing the spherical low molecular weight polyethylene wax with a solvent to remove the good solvent and non-solvent contained in the wax and drying the spherical low molecular weight polyethylene wax. Preferably the good solvent is a linear alkanol; and the non-solvent is a divalent alcohol or a polyol.
Abstract translation: 目的：提供一种制备球形低分子量聚乙烯蜡的方法，以简化反应并通过不使用聚合催化剂和不使用粉碎或分离过程来降低成本。 组成：该方法包括以下步骤：在高于熔点的温度下加热低分子量聚乙烯蜡以蒸发蜡中所含的未反应油组分，并除去沉积灰; 将低分子量聚乙烯蜡溶解在良溶剂中以制备透明均匀溶液; 在高于低分子量聚乙烯蜡的熔点的温度下将不具有溶解力的非溶剂加热至低分子量聚乙烯蜡; 混合均匀溶液和非溶剂; 将所得混合物冷却至低于低分子量聚乙烯蜡的结晶温度的温度以通过乳液结晶制备乳液; 并过滤乳液以获得球形低分子量聚乙烯蜡，用溶剂洗涤球形低分子量聚乙烯蜡以除去蜡中所含的良溶剂和非溶剂并干燥球形低分子量聚乙烯蜡。 优选的良溶剂是直链烷醇; 非溶剂是二元醇或多元醇。
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67.发明授权
公开(公告)号：KR100434942B1
公开(公告)日：2004-06-10
申请号：KR1020010029667
申请日：2001-05-29
Applicant: 한국화학연구원
IPC: C08F259/06
Abstract: PURPOSE: A method for preparing the graft polymer of a polyvinylidene fluoride resin and an acryl derivative and its polymerization apparatus are provided to use little solvent, to reduce the reaction time, to improve the graft rate and to modify the surface of the polymer. CONSTITUTION: The method comprises the steps of putting a solid polyvinylidene fluoride resin supplying the main chain of a linear polymer into a solid state polymerization reactor; purging nitrogen gas to remove the oxygen present in the reactor; heating the temperature to 90-120 deg.C; injecting a solid state initiator to generate radicals at the polymerization reaction temperature; spraying a liquid acryl derivative in the state of aerosol; and reacting it at the polymerization reaction temperature for 10-50 min after the injection of an initiator. Preferably the initiator is benzoyl peroxide, and the acryl derivative is selected from the group consisting of acrylic acid, methacrylic acid and glycidyl methacrylate.
Abstract translation: 目的：提供一种制备聚偏二氟乙烯树脂和丙烯酰基衍生物的接枝聚合物及其聚合装置的方法，以使用少量溶剂，缩短反应时间，提高接枝率和改性聚合物表面。 构成：该方法包括以下步骤：将供给线性聚合物主链的固体聚偏二氟乙烯树脂放入固态聚合反应器中; 吹扫氮气以除去存在于反应器中的氧气; 将温度加热到90-120℃; 在聚合反应温度下注入固态引发剂以产生自由基; 以气溶胶状态喷雾液体丙烯酰基衍生物; 并在引发剂注入后在聚合反应温度下反应10-50分钟。 优选引发剂是过氧化苯甲酰，丙烯酰基衍生物选自丙烯酸，甲基丙烯酸和甲基丙烯酸缩水甘油酯。
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公开(公告)号：KR1020040031921A
公开(公告)日：2004-04-14
申请号：KR1020020061061
申请日：2002-10-07
Applicant: 한국화학연구원
IPC: B01D71/06
CPC classification number: B01D71/06 , B01D53/228 , B01D69/10
Abstract: PURPOSE: A method for fabricating ionic liquid supported liquid membrane for gas separation is provided. The method uses ionic liquid which maintains liquid status over a wide temperature range and has no vapor pressure as liquid membrane raw material, and produces liquid membrane by phase separation process, so that the method can uniformly disperse ionic liquid to a support polymer and easily produce stable liquid membrane. CONSTITUTION: The method comprises the steps of (a) preparing ionic liquid being kept in liquid phase over a wide temperature range and having no vapor pressure, (b) preparing a support polymer with low gas permeability and good mechanical properties, (c) dissolving the prepared ionic liquid and the support polymer in a common solvent, (d) making a film using a solution obtained at the step (c), (e) removing the common solvent by phase separation in which a first phase separation process is performed at a temperature of 20 to 40°C and relative humidity of 30 to 40% and a second process is performed at a temperature of 60 to 90°C, thereby producing a domain in which ionic liquid is immobilized into a support polymer, wherein the ionic liquid is 1-alkyl-3-methylimidazolium cation and the polymer is selected from a group consisted of polyvinylidene fluoride, polyacrylonitrile, polysulfone, cellulose acetate, and polyvinylidene fluoride copolymer.
Abstract translation: 目的：提供一种制备用于气体分离的离子液体支撑液膜的方法。 该方法使用在宽温度范围内保持液体状态并且没有蒸气压作为液膜原料的离子液体，并且通过相分离方法生产液膜，使得该方法可以将离子液体均匀分散到支持聚合物上并且容易地产生 稳定液膜。 方法：该方法包括以下步骤：（a）制备在宽温度范围内保持液相并且不具有蒸气压的离子液体，（b）制备低透气性和良好机械性能的支撑聚合物，（c）溶解 所制备的离子液体和载体聚合物在常用溶剂中，（d）使用在步骤（c）中获得的溶液制备膜，（e）通过相分离除去常规溶剂，其中进行第一相分离处理 温度为20〜40℃，相对湿度为30〜40％，第2工序在60〜90℃的温度下进行，从而制成将离子液体固定在载体聚合物中的区域， 液体是1-烷基-3-甲基咪唑鎓阳离子，聚合物选自聚偏二氟乙烯，聚丙烯腈，聚砜，乙酸纤维素和聚偏二氟乙烯共聚物。
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公开(公告)号：KR1020040013883A
公开(公告)日：2004-02-14
申请号：KR1020020046990
申请日：2002-08-09
Applicant: 한국화학연구원
CPC classification number: C08F220/18 , B82B3/00 , C04B24/26 , C08F2/22 , C08F2/26
Abstract: PURPOSE: A method for preparing an acryl-based polymer nano water dispersion is provided, to improve the environmental-friendliness of the acryl-based polymer nano water dispersion used in polymer cement and the tensile strength of the polymer cement. CONSTITUTION: The method comprises the steps of stirring the mixture comprising 45-55 parts by weight of an acryl-based monomer, 0.8-1.2 parts by weight of polyoxyethylene lauryl ether represented by C12H25O(C2H4O)nH (wherein n is 21-50) as a nonionic surfactant and 25-35 parts by weight distilled water at a temperature of 40-70 deg.C to prepare a stable monomer emulsion; stirring the mixture comprising 35-45 parts by weight of distilled water and 0.04-0.06 parts by weight of an anionic surfactant at a temperature of 60-80 deg.C and adding 0.2-1.5 parts by weight of an initiator to prepare an aqueous solution mixture; and continuously dropping the monomer emulsion to the aqueous solution mixture to perform the emulsion polymerization. The obtained acryl-based polymer nano water dispersion has a particle size of 315-350 nm and a polymer solid content of 37-41 wt%.
Abstract translation: 目的：提供一种制备丙烯酸类聚合物纳米水分散体的方法，以改善聚合物水泥中使用的丙烯酸类聚合物纳米水分散体的环境友好性和聚合物水泥的拉伸强度。 方法：该方法包括以下步骤：将包含45-55重量份丙烯酸类单体，0.8-1.2重量份由C12H25O（C2H4O）nH（其中n为21-50）表示的聚氧乙烯月桂基醚） 作为非离子表面活性剂和25-35重量份蒸馏水，在40-70℃的温度下制备稳定的单体乳液; 在60-80℃的温度下搅拌包含35-45重量份蒸馏水和0.04-0.06重量份阴离子表面活性剂的混合物，并加入0.2-1.5重量份引发剂以制备水溶液 混合物; 并将单体乳液连续滴加到水溶液混合物中以进行乳液聚合。 得到的丙烯酸类聚合物纳米水分散体的粒径为315〜350nm，聚合物固体成分为37〜41重量％。
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公开(公告)号：KR100417059B1
公开(公告)日：2004-02-05
申请号：KR1020010022578
申请日：2001-04-26
Applicant: 한국화학연구원
IPC: C08J11/02
Abstract: PURPOSE: Provided is a method for crystallizing polyethylene wax and fractionating the wax according to average molecular weight with narrow molecular weight distribution, so as to purify the wax in high purity. CONSTITUTION: The method comprises the steps of (i) mixing a crystallizing solvent having concentration of 1-95% and a raw material in a crystallizer(S1); (ii) elevating temperature of the mixture so as to liquidize the raw material(S2); (iii) cooling temperature of the mixture at supercooling temperature of 30-110 deg.C and cooling velocity of 0.1-10 deg.C/minute(S3); crystallizing the cooled raw material(S4); and filtrating the crystallized material(S5). The crystallizing solvent is selected from the group consisting of saturated hydrocarbon, ketone, monocyclic aromatic hydrocarbon, polycyclic aromatic hydrocarbon, olefinic hydrocarbon, and mixture thereof.
Abstract translation: 用途：提供一种使聚乙烯蜡结晶并按照平均分子量分级并且分子量分布窄的方法，从而以高纯度纯化蜡的方法。 组成：该方法包括以下步骤：（i）在结晶器（S1）中混合浓度为1-95％的结晶溶剂和原料; （ii）升高混合物的温度以便使原料（S2）液化; （iii）在30-110℃的过冷温度和0.1-10℃/分钟的冷却速度下混合物的冷却温度（S3）; 结晶冷却的原料（S4）; 并过滤结晶材料（S5）。 结晶溶剂选自饱和烃，酮，单环芳烃，多环芳烃，烯烃和它们的混合物。
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