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    • 34. 发明公开
    • 이온성 액체에 용해된 셀룰로오즈 용액
    • 使用离子液体的纤维素溶液
    • KR1020090005423A
    • 2009-01-14
    • KR1020070068434
    • 2007-07-09
    • 한국과학기술연구원
    • 이현주김창수안병성서동진상병인이지연
    • C08B1/00C08B16/00
    • C08B16/00C08B1/003
    • Cellulose solution is provided to prepare the homogenous solution which can be manufactured at a low temperature less than 100°C to have high concentration by using the specific ionic liquid melting the cellulose. Cellulose solution is manufactured by dissolving the cellulose in the ionic liquid. The ionic liquid comprises a quaternary ammonium cation indicated as the chemical formula 1 and an anion indicated as the chemical formula 2. In the chemical formula 1, R1, R2, R3, R4, R5, R6, R7, and R8 are the same or different and are selected from C1-C6 alkyl group, C1-C6 alkylcarboxy acid group, C1-C6 alkylester, hydroxy C1-C6 alkyl group and C1-C6 alkoxy C1-C6 alkyl group, wherein the case that R1 and R2 are an alkyl group at the same time is excluded. In the chemical formula 2, R9 and R10 are selected from respectively hydrogen atom, C1-C6 alkyl group and hydroxy C1-C6 alkyl group.
    • 提供纤维素溶液以制备可在低于100℃的低温下通过使用熔化纤维素的特定离子液体而具有高浓度的均匀溶液。 通过将纤维素溶解在离子液体中来制造纤维素溶液。 离子液体包含化学式1表示的季铵阳离子和化学式2表示的阴离子。在化学式1中,R 1,R 2,R 3,R 4,R 5,R 6,R 7和R 8相同或不同 不同且选自C 1 -C 6烷基,C 1 -C 6烷基羧酸基,C 1 -C 6烷基酯,羟基C 1 -C 6烷基和C 1 -C 6烷氧基C 1 -C 6烷基,其中R 1和R 2是烷基 群组同时被排除。 在化学式2中,R 9和R 10分别选自氢原子,C 1 -C 6烷基和羟基C 1 -C 6烷基。
    • 36. 发明授权
    • 반 연속식 공정을 이용한 함불소알콕시트리알킬실란의제조방법
    • 在半连续过程中制备氟代烷氧基硅烷的方法
    • KR100791887B1
    • 2008-01-07
    • KR1020060108485
    • 2006-11-03
    • 한국과학기술연구원
    • 김홍곤안병성이현주김창수김훈식
    • C07F7/18C07F7/08C07F7/12
    • C07F7/1844C07F7/0849C07F7/10C07F7/12
    • A method for preparing fluoroalkoxy trialkylsilane is provided to maximize the reaction yield of the fluoroalkoxy trialkylsilane and reuse an imidazole-based compound of a reaction promoting agent through a semi-continuous process. A method for preparing fluoroalkoxy trialkylsilane comprises the steps of: (a) reacting fluoroalcohol with chlorotrialkylsilane in the presence of an imidazole-based compound to prepare imidazolium chloride and fluoroalkoxy trialkylsilane and isolating the fluoroalkoxy trialkylsilane represented by the formula(1) from the reaction products; (b) after reacting the imidazolium chloride with alkali hydroxide such as sodium hydroxide and potassium hydroxide in a horizontal tubular reactor having a screw, subjecting the reaction product to membrane filtration to separate an aqueous solution of an imidazole-based compound and a solid phase alkali metal chloride; and (c) subjecting the aqueous solution of the imidazole-based compound to vacuum distillation using a Dean-Stark distillation column to separate an imidazole-based compound represented by the formula(2) therefrom. In the formulae, each R1, R2, and R3 is methyl or ethyl; Rf is C1-4 fluorohydrocarbon including 1-9 fluorine; and R4 is C1-4 alkyl or C2-4 alkenyl.
    • 提供氟烷氧基三烷基硅烷的制备方法,以使氟烷氧基三烷基硅烷的反应产率最大化,并通过半连续方法再利用反应促进剂的咪唑类化合物。 一种制备氟烷氧基三烷基硅烷的方法包括以下步骤:(a)在咪唑类化合物存在下使氟代醇与氯三烷基硅烷反应制备氯化咪唑鎓和氟烷氧基三烷基硅烷,并将由式(1)表示的氟烷氧基三烷基硅烷从反应产物 ; (b)在具有螺杆的水平管式反应器中使咪唑氯与碱金属氢氧化物如氢氧化钠和氢氧化钾反应后,使反应产物进行膜过滤,分离出咪唑类化合物和固相碱的水溶液 金属氯化物 和(c)使用Dean-Stark蒸馏塔使咪唑类化合物的水溶液进行真空蒸馏,以从其中分离由式(2)表示的咪唑类化合物。 在该式中,每个R 1,R 2和R 3是甲基或乙基; Rf是C1-4氟代烃,包括1-9氟; 并且R 4是C 1-4烷基或C 2-4链烯基。
    • 37. 发明授权
    • 이미다졸륨계 고분자에 지지된 산촉매를 이용한함불소알콕시트리알킬실란의 제조방법
    • 使用支持在基于咪达拉斯的聚合物上的酸性催化剂制备氟代烷基丙烯酸硅烷
    • KR100780483B1
    • 2007-11-29
    • KR1020060103435
    • 2006-10-24
    • 한국과학기술연구원
    • 이현주김창수안병성김홍곤김훈식
    • C07F7/18C07F7/08
    • C07F7/1872B01J31/0274B01J31/0292C07F7/1844
    • A method for preparing fluorinated alkoxytrialkylsilane is provided to increase the yield of the desired product by using an acid catalyst in which a conventional HX is supported on an ionic liquid based polymer and easily isolate and recover the used catalyst. A method for preparing fluoroalkoxy trialkyl silane comprises a step of reacting hexa-alkyl disiloxane with fluoroalcohol using an acid catalyst supported on an imidazolium based polymer represented by the formula(1), wherein X is halogen, acetoxy, sulfonic, methane sulfonic, trifluoromethanesulfonic, or toluenesulfonic; and n is an integer from 50-1,000. In the method, 0.01-0.2 mol of the acid catalyst regarding 1 mol of the hexa-alkyl disiloxane is used and the reaction is performed under a non-solvent condition or a non-protic solvent.
    • 提供氟化烷氧基三烷基硅烷的制备方法,通过使用常规的HX负载在离子液体基聚合物上的酸催化剂来提高所需产物的产率,并容易地分离和回收所用的催化剂。 制备氟烷氧基三烷基硅烷的方法包括使用负载在由式(1)表示的咪唑基聚合物上的酸催化剂使六烷基二硅氧烷与氟代醇反应的步骤,其中X是卤素,乙酰氧基,磺酸,甲磺酸,三氟甲磺酸, 或甲苯磺酸; n为50-1000的整数。 在该方法中,使用0.01-0.2摩尔酸催化剂,关于1摩尔六烷基二硅氧烷,并且反应在非溶剂条件或非质子溶剂下进行。
    • 38. 发明授权
    • 불소화 디알킬 카보네이트의 제조 방법
    • 불소화디알킬카보네이트의제조방법
    • KR100690010B1
    • 2007-03-09
    • KR1020050099694
    • 2005-10-21
    • 한국과학기술연구원
    • 이제승김홍곤안병성이상득이현주김훈식
    • C07C67/08
    • Provided is a process for preparing a fluorinated dialkyl carbonate, which use no toxic materials such as phosgene, carbon monooxide or methyl nitrate, adopts mild conditions, and allows production of a fluorinated dialkyl carbonate with a high yield. The process for preparing a fluorinated dialkyl carbonate represented by a formula 1 comprises a step of reacting a fluorine-containing alcohol with a chloroformate derivative in the presence of an imidazole derivative represented by a formula 4. In the formula 4, R1 represents H, a C1-C6 alkyl or C2-C6 alkenyl. In the formula 1, R2 represents a C1-C18 hydrocarbon group or phenyl group, and RF represents a C1-C18 fluorine-containing hydrocarbon group.
    • 本发明提供不使用光气,一氧化碳,硝酸甲酯等有毒物质,采用温和条件,可以高收率地制造氟化二烷基碳酸酯的氟化碳酸二烷基酯的制造方法。 由式1表示的制备氟化的碳酸二烷基酯的方法包括使含氟的醇与氯甲酸酯衍生物在式4表示的咪唑衍生物存在下反应的步骤。在式4中,R1表示H,a C1-C6烷基或C2-C6链烯基。 式1中,R 2表示碳数1〜18的烃基或苯基,RF表示碳数1〜18的含氟烃基。