-
公开(公告)号：EP0969022A1
公开(公告)日：2000-01-05
申请号：EP99112082.5
申请日：1999-06-23
申请人： Ausimont S.p.A.
CPC分类号： B01D61/142 , C08F6/06 , C08L27/18
摘要： Purification process of amorphous polymers comprising the following steps:
a) the amorphous polymer is dissolved in a fluorinated solvent;
b) the solution containing the polymer is microfiltered by semipermeable membranes having a porosity in the range 0.05 - 0.5 µm, and the permeate forms the polymeric solution purified by contaminants in suspension;
c) the permeate coming from b) is ultrafiltered/nanofiltered by membranes with porosity in the range 10-500 kDa, and the retentate is formed by the polymeric solution purified from the contaminants in solution.摘要翻译： 无定形聚合物的纯化方法包括以下步骤：a）将无定形聚合物溶解在氟化溶剂中; b）含有聚合物的溶液通过孔隙率在0.05-0.5μm之间的半透膜进行微过滤，并且渗透物形成由悬浮液中的污染物纯化的聚合物溶液; c）来自b）的渗透物通过孔隙率在10-500kDa范围内的膜进行超滤/纳滤，并且通过从溶液中的污染物纯化的聚合溶液形成滞留物。
-
2.发明授权(Co)polymerization process in aqueous emulsion of fluorinated olefinic monomers 失效过程用于在水性乳液（共）含氟烯烃单体的聚合
公开(公告)号：EP0752432B1
公开(公告)日：1999-08-18
申请号：EP96111898.1
申请日：1994-05-05
申请人： AUSIMONT S.p.A.
CPC分类号： C08F14/18 , C08J3/03 , C08J2371/00 , C08F2/16
-
3.发明授权(Co)polymerization process in aqueous emulsion of fluorinated olefinic monomers 失效（共）聚合在水性乳液中的氟化烯烃单体的方法
公开(公告)号：EP0625526B1
公开(公告)日：1997-02-19
申请号：EP94107042.7
申请日：1994-05-05
申请人： AUSIMONT S.p.A.
CPC分类号： C08F14/18 , C08J3/03 , C08J2371/00 , C08F2/16
-
公开(公告)号：EP1236503A1
公开(公告)日：2002-09-04
申请号：EP02004182.8
申请日：2002-02-26
申请人： Ausimont S.p.A.
发明人： Maccone, Patrizia , Fossati, Paolo
CPC分类号： B01D71/32 , B01D67/003 , B01D69/02 , B01D2323/12
摘要： Semipermeable porous membranes having an average pore diameter in the range 0.01-3 µm, and porosity in the range 30%-90%, based on semi-crystalline fluoropolymers and the respective preparation process, wherein the semi-crystalline fluoropolymers comprise:
(a) from 10 to 70% by moles of ethylene,
(b) from 30 to 90% by moles of a fluorinated monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, or mixtures thereof,
(c) from 0.1 to 30% by moles, with respect to the total amount of monomers (a) and (b), of a hydrogenated monomer of formula:
CH 2 =CH-(CH 2 ) n -R 1 (I)
wherein R 1 = -OR 2 , or -(O) t CO(O) p R 2 wherein t and p are integers equal to 0.1 and R 2 is a linear or branched C 1 -C 20 alkyl, or a cycloalkyl, optionally containing heteroatoms and/or chlorine atoms, preferably heteroatoms are O or N; R 2 can optionally contain one or more functional groups, preferably selected from OH, COOH, epoxy, ester and ether group; R 2 can optionally contain double bonds, or it can be H; n is an integer in the range 0-10.摘要翻译： 基于半结晶含氟聚合物和相应的制备方法，平均孔径在0.01-3μm范围内的孔隙率在30％-90％范围内的半透性多孔膜，其中半结晶含氟聚合物包括：（a ），10至70摩尔％的乙烯，（b）30至90摩尔％的选自四氟乙烯，氯三氟乙烯或其混合物的氟化单体，（c）0.1至30摩尔％，相对于 CH 2 = CH-（CH 2）n -R 1的氢化单体的单体（a）和（b）的总量，其中R1 = -OR2或 - （O）tCO（O）pR2其中t和p为 等于0.1的整数，R2是直链或支链的C 1 -C 20烷基或任选含有杂原子和/或氯原子的环烷基，优选杂原子是O或N; R2可以任选地含有一个或多个官能团，优选选自OH，COOH，环氧基，酯和醚基团; R2可任选地含有双键，或者可以是H; n是0-10范围内的整数。
-
公开(公告)号：EP0712944A3
公开(公告)日：1997-06-04
申请号：EP95117051.3
申请日：1995-10-30
申请人： AUSIMONT S.p.A.
CPC分类号： C11D7/261 , C11D7/28 , C11D7/5018 , C23G5/032
摘要： Ternary mixtures, particularly suitable for removing oily substances having both an hyrogenated and fluorinated or mixed basis, essentially consisting of: (a) water; (b) terbutanol; (c) a fluoropolyoxyalkylene having hydrogenated end groups and/or hydrogenated repetitive units. Such mixtures have high flash point, are non toxic and with null depleting potential of the ozone and show a ternary diagram characterized by a wide monophasic zone, wherein the three components form limpid and stable solutions.
-
公开(公告)号：EP0655468A1
公开(公告)日：1995-05-31
申请号：EP94118400.4
申请日：1994-11-23
申请人： AUSIMONT S.p.A.
IPC分类号： C08F14/22
CPC分类号： C08F14/22 , C08F2438/01 , C08F2/38
摘要： Object of the present invention is a process for preparing vinylidenefluoride (VDF) polymers which comprises polymerizing VDF, optionally in association with other fluorinated olefins, in an aqueous medium in the presence of a radical initiator and of 1,1,1-trifluoro-2,2-dichloroethane (HCFC-123) as chain transfer agent.
A final product with very good colour characteristics (appearance), substantially devoid of discoloration effects at high temperatures, is so obtained.摘要翻译： 本发明的目的是一种制备偏二氟乙烯（VDF）聚合物的方法，该方法包括在自由基引发剂和1,1,1-三氟-2 ，2-二氯乙烷（HCFC-123）作为链转移剂。 具有非常好的颜色特性（外观），在高温下基本上没有变色效应的最终产品如此获得。
-
7.发明公开(Co)polymerization process in aqueous emulsion of fluorinated olefinic monomers 失效（co）Polymérisationsverfahrenvon Fluor enthaltenden ethyleneischen Monomeren inwässrigerEmulsion。
公开(公告)号：EP0625526A1
公开(公告)日：1994-11-23
申请号：EP94107042.7
申请日：1994-05-05
申请人： AUSIMONT S.p.A.
CPC分类号： C08F14/18 , C08J3/03 , C08J2371/00 , C08F2/16
摘要： In a process of (co)polymerization in aqueous emulsion of fluorinated olefinic monomers it is added to the reaction medium a microemulsion of fluoropolyoxyalkylenes having hydrogenated end groups and/or hydrogenated repetitive units. A remarkable reduction in the reaction induction period is so obtained, with formation of a product with improved mechanical properties and higher thermal and chemical resistance.
摘要翻译： 在氟化烯烃单体的水性乳液中（共）聚合的过程中，向反应介质中加入具有氢化端基和/或氢化重复单元的氟代聚氧化烯的微乳液。 通过形成具有改善的机械性能和更高的耐热和耐化学性的产品，可以获得反应诱导期的显着降低。
-
8.发明公开Preparation of sulphonic fluorinated polymer solutions 有权聚合物聚合物（Herstellung von Sulfongruppen enthaltenden fluoriertenPolymerlösungen）
公开(公告)号：EP1004615A2
公开(公告)日：2000-05-31
申请号：EP99105912.2
申请日：1999-03-24
申请人： Ausimont S.p.A.
IPC分类号： C08J3/09
CPC分类号： C08J3/091 , C08J2327/12
摘要： A process for preparing a solution and/or dispersion containing sulphonic (per)fluorinated ionomers having -SO 3 M functional groups, wherein M is selected from H, Li, Na, K, NR 4 (R equal to or different from each other are selected from H, CH 3 ,C 2 H 5 ), characterized in that it dissolves the above defined ionomers at a temperature comprised between the room temperature and about 150°C, in a monophasic ternary mixture essentially constituted by water, by a C 1 -C 4 alcohol and by a fluoro(poly)oxyalkylene having one hydrogen atom in at least a fluorinated end group; the dispersed polymer particle sizes are in the range 30-100 nm.
摘要翻译： 一种制备含有具有-SO 3 M官能团的磺酸（全）氟化离聚物的溶液和/或分散体的方法，其中M选自H，Li，Na，K，NR4（R彼此相同或不同）选自H ，CH 3，C 2 H 5），其特征在于其在室温至约150℃之间的温度下，以基本上由水，由C 1 -C 4醇和氟（C 1 -C 4）烷基组成的单相三元混合物溶解上述限定的离聚物， 至少氟化端基中具有一个氢原子的聚氧化烯） 分散的聚合物粒径在30-100nm的范围内。
-
9.发明公开
公开(公告)号：EP0969025A1
公开(公告)日：2000-01-05
申请号：EP99112081.7
申请日：1999-06-23
申请人： Ausimont S.p.A.
IPC分类号： C08F34/02 , C08F214/18 , B01D71/44
CPC分类号： B01D71/44 , C08F34/02 , C08F214/262
摘要： Amorphous fluoropolymer selfsupported manufactured articles obtained by casting from solution in a single step, characterized in that they are obtained by the polymerization of a structure (I), optionally and preferably with a monomer having a structure (II):
wherein: R f is a C 1 -C 5 perfluoroalkyl radical; X 1 and X 2 are selected from F and CF 3 ; Y 1 and Y 2 are selected from F, Cl, H, CF 3 , OR f ; having refractive index lower than 1.35, trasmittance higher than 90% in the radiation field 300-2,000 nm wave length, and thickness higher than 20-25 µm.摘要翻译： 无定形含氟聚合物自支撑的制品通过单一步骤从溶液中浇铸获得，其特征在于它们可通过结构（I）的聚合，任选地和优选具有结构（II）的单体：
而获得，其中：Rf 是C1-C5全氟烷基; X1和X2选自F和CF3; Y1和Y2选自F，Cl，H，CF3，ORf; 折射率低于1.35，在300-2000nm波长的辐射场中的导电率高于90％，厚度高于20-25μm。 -
10.发明授权
公开(公告)号：EP0712944B1
公开(公告)日：1999-08-11
申请号：EP95117051.3
申请日：1995-10-30
申请人： AUSIMONT S.p.A.
CPC分类号： C11D7/261 , C11D7/28 , C11D7/5018 , C23G5/032
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.01 秒)
