专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2621967A4 PROCESS FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER 有权
标题翻译：处理对聚四氟乙烯细粉
公开(公告)号：EP2621967A4
公开(公告)日：2015-04-01
申请号：EP11829431
申请日：2011-09-29
申请人： DAIKIN IND LTD
发明人： MIYAMOTO MASAYOSHI , YAMANAKA TAKU , SAWADA YASUHIKO
IPC分类号： C08F14/26 , C08J3/16
CPC分类号： C08F14/26 , C08F2/20 , C08F114/26 , C08F214/26 , C08J3/16 , C08J2327/18 , Y10T428/2982 , C08F114/24
摘要： A process for producing a polytetrafluoroethylene fine powder including: (1) a step of preparing an aqueous dispersion containing polytetrafluoroethylene, water and a surfactant (A); (2) a step of initiating coagulation of the polytetrafluoroethylene in said aqueous dispersion by agitating said aqueous dispersion; (3) a step of adding a surfactant (B) after the step (2); (4) a step of terminating coagulation after the step (3); (5) a step of collecting a wet powder of the polytetrafluoroethylene; and (6) a step of drying the wet powder of the polytetrafluoroethylene.

2. 发明公开

EP0093580A3 Chlorotrifluoroethylene telomerization process 失效
标题翻译：氯仿三氟乙烯萃取过程
公开(公告)号：EP0093580A3
公开(公告)日：1984-02-29
申请号：EP83302397
申请日：1983-04-27
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Saran, Mohan S.
IPC分类号： C08F14/24 , C08F08/20 , C07C17/28 , C07C17/20 , C07C19/08
CPC分类号： C08F8/20 , C07C17/278 , C07C19/10 , C08F2/38 , C08F14/24 , C08F114/24
摘要： An improved process for preparing telomers of chlorotrifluoroethylene comprises the solution telomerization reaction of chlorotrifluoroethylene with carbon tetrachloride in the presence of a catalytic amount of ferric chloride (FeCl 3 ) and a reductant selected from the group consisting of iron, nickel, cobalt, vanadium, molybdenum, chromium, their alloys and mixtures thereof. Preferably, the solvent for the system comprises acetonitrile, and the telomerization is carried out under elevated pressure conditions and at a temperature in the range of from about 90°C to about 150°C. The crude telomer prepared by this process can be fluorinated to produce a stabilized oil or grease.

3. 发明公开

EP2621967A1 PROCESS FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER 有权
标题翻译：处理对聚四氟乙烯细粉
公开(公告)号：EP2621967A1
公开(公告)日：2013-08-07
申请号：EP11829431.3
申请日：2011-09-29
申请人： Daikin Industries, Ltd.
发明人： MIYAMOTO, Masayoshi , YAMANAKA, Taku , SAWADA, Yasuhiko
IPC分类号： C08F14/26 , C08J3/16
CPC分类号： C08F14/26 , C08F2/20 , C08F114/26 , C08F214/26 , C08J3/16 , C08J2327/18 , Y10T428/2982 , C08F114/24
摘要： A process for producing a polytetrafluoroethylene fine powder including: (1) a step of preparing an aqueous dispersion containing polytetrafluoroethylene, water and a surfactant (A); (2) a step of initiating coagulation of the polytetrafluoroethylene in said aqueous dispersion by agitating said aqueous dispersion; (3) a step of adding a surfactant (B) after the step (2); (4) a step of terminating coagulation after the step (3); (5) a step of collecting a wet powder of the polytetrafluoroethylene; and (6) a step of drying the wet powder of the polytetrafluoroethylene.

4. 发明公开

EP1688442A1 PROCESS FOR PRODUCTION OF FLUORINE-CONTAINING POLYMERS AND FLUORINE-CONTAINING POLYMERS 无效
标题翻译： VERFAHREN ZUR HERSTELLUNG VON FLUORHALTIGEN POLYMEREN UND FLUORHALTIGE POLYMERE
公开(公告)号：EP1688442A1
公开(公告)日：2006-08-09
申请号：EP04818982.3
申请日：2004-11-19
申请人： DAIKIN INDUSTRIES, LTD.
发明人： TAKASE, Yoshiyuki, c/o Daikin Industries, Ltd. , ISHII, Kenji, c/o Daikin Industries, Ltd. , FUKUOKA, Shouji, c/o Daikin Industries, Ltd.
IPC分类号： C08F8/00 , C08F14/00
CPC分类号： C08F14/18 , C08F8/00 , C08F14/22 , C08F14/24 , C08F14/26 , C08F14/28 , C08F114/22 , C08F114/24 , Y10T428/3154
摘要： It is an object of the present invention to provide a method of producing a fluoropolymer high in terminal group stability and excellent in moldability.
The present invention relates to a method of producing a fluoropolymer by which a melt-processable fluoropolymer (A) having a specific unstable terminal group or groups (P) is subjected to melt-kneading in a kneader comprising a stabilization treatment zone to thereby produce a fluoropolymer (B) resulting from conversion of said specific unstable terminal group or groups (P) to -CF 2 H,
said specific unstable terminal group or groups (P) comprising alkoxycarbonyl groups, fluoroalkoxycarbonyl groups and/or carboxyl group quaternary nitrogen compound salts,
the melt-kneading being carried out in the absence or presence of an alkali metal element or alkaline earth metal element,
the mass of said alkali metal element or alkaline earth metal element being not greater than 2 ppm of the composition under melt-kneading, and
the melt-kneading in said stabilization treatment zone being carried out in the presence of water.
摘要翻译：本发明的目的是提供一种端基稳定性高，成型性优异的含氟聚合物的制造方法。本发明涉及一种含氟聚合物的制造方法，通过使含有特定的不稳定末端基团（P）的可熔融加工的含氟聚合物（A）在包含稳定化处理区域的捏和机中进行熔融捏合，从而产生由所述特定不稳定末端基团（P）转化为-CF 2 H，所述特定不稳定末端基团（P）或由烷氧基羰基，氟代烷氧基羰基和/或羧基季氮化合物盐组成的基团（P））得到的含氟聚合物（B）在不存在或不存在碱金属元素或碱土金属元素的情况下进行熔融捏合，所述碱金属元素或碱土金属元素的质量在熔融捏合下不超过组合物的2ppm，以及所述稳定化处理区中的熔融捏合在水的存在下进行。

5. 发明公开

EP1688442A4 PROCESS FOR PRODUCTION OF FLUORINE-CONTAINING POLYMERS AND FLUORINE-CONTAINING POLYMERS 无效
标题翻译：用于生产含氟聚合物和含氟聚合物
公开(公告)号：EP1688442A4
公开(公告)日：2008-09-24
申请号：EP04818982
申请日：2004-11-19
申请人： DAIKIN IND LTD
发明人： TAKASE YOSHIYUKI , ISHII KENJI , FUKUOKA SHOUJI
IPC分类号： C08F8/00 , C08F14/00 , C08F14/18
CPC分类号： C08F14/18 , C08F8/00 , C08F14/22 , C08F14/24 , C08F14/26 , C08F14/28 , C08F114/22 , C08F114/24 , Y10T428/3154
摘要： The present invention aims at providing a process for the production of fluorine-containing polymers whose end groups are stabilized and which are excellent in moldability. The present invention relates to a process for the production of fluorine-containing polymers which comprises melt-kneading a melt-processable fluorine-containing polymer (A) having a specific unstable end group (P) in a kneader provided with a stabilization zone to convert the polymer (A) into a fluorine-containing polymer (B) wherein the specific unstable end group (P) is replaced by -CF2H, characterized in that the specific unstable end group (P) is alkoxycarbonyl, fluoroalkoxycarbonyl and/or a salt of carboxyl with a quaternary nitrogen compound, that the melt kneading is conducted in the presence or absence of an alkali metal element or an alkaline earth metal element and the mass of the alkali metal element or the alkaline earth metal element is 2ppm or below based on the substance to be melt-kneaded, and that the melt kneading in the stabilization zone is carried out in the presence of a water.

6. 发明公开

EP0093580A2 Chlorotrifluoroethylene telomerization process 失效
标题翻译： Chlortrifluoräthylen-Telomerisierungsverfahren。
公开(公告)号：EP0093580A2
公开(公告)日：1983-11-09
申请号：EP83302397.1
申请日：1983-04-27
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Saran, Mohan S.
IPC分类号： C08F14/24 , C08F8/20 , C07C17/28 , C07C17/20 , C07C19/08
CPC分类号： C08F8/20 , C07C17/278 , C07C19/10 , C08F2/38 , C08F14/24 , C08F114/24
摘要： An improved process for preparing telomers of chlorotrifluoroethylene comprises the solution telomerization reaction of chlorotrifluoroethylene with carbon tetrachloride in the presence of a catalytic amount of ferric chloride (FeCl 3 ) and a reductant selected from the group consisting of iron, nickel, cobalt, vanadium, molybdenum, chromium, their alloys and mixtures thereof. Preferably, the solvent for the system comprises acetonitrile, and the telomerization is carried out under elevated pressure conditions and at a temperature in the range of from about 90°C to about 150°C. The crude telomer prepared by this process can be fluorinated to produce a stabilized oil or grease.
摘要翻译：用于制备氯三氟乙烯的调聚物的改进方法包括氯化三氯乙烯与四氯化碳在催化量的氯化铁（FeCl 3）和选自铁，镍，钴，钒，钼的还原剂的存在下的溶液调聚反应，铬，它们的合金及其混合物。优选地，该系统的溶剂包括乙腈，并且调聚在升高的压力条件下和在约90℃至约150℃的温度范围内进行。通过该方法制备的粗调聚物可被氟化为产生稳定的油或油脂。

7. 发明授权

EP1688442B1 PROCESS FOR PRODUCTION OF FLUORINE-CONTAINING POLYMERS AND FLUORINE-CONTAINING POLYMERS 无效
标题翻译：用于生产含氟聚合物和含氟聚合物
公开(公告)号：EP1688442B1
公开(公告)日：2010-05-05
申请号：EP04818982.3
申请日：2004-11-19
申请人： DAIKIN INDUSTRIES, LTD.
发明人： TAKASE, Yoshiyuki, c/o Daikin Industries, Ltd. , ISHII, Kenji, c/o Daikin Industries, Ltd. , FUKUOKA, Shouji, c/o Daikin Industries, Ltd.
IPC分类号： C08F8/00 , C08F14/00
CPC分类号： C08F14/18 , C08F8/00 , C08F14/22 , C08F14/24 , C08F14/26 , C08F14/28 , C08F114/22 , C08F114/24 , Y10T428/3154

8. 发明授权

EP0093580B1 Chlorotrifluoroethylene telomerization process 失效
标题翻译：氯仿三氟乙烯萃取过程
公开(公告)号：EP0093580B1
公开(公告)日：1986-12-10
申请号：EP83302397.1
申请日：1983-04-27
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Saran, Mohan S.
IPC分类号： C08F14/24 , C08F8/20 , C07C17/28 , C07C17/20 , C07C19/08
CPC分类号： C08F8/20 , C07C17/278 , C07C19/10 , C08F2/38 , C08F14/24 , C08F114/24

9. 发明公开

EP0145518A1 Dérivés de carbones polymères, leur préparation et leurs applications notamment chimiques et électrochimiques 失效
标题翻译： Polykohlenstoff-Derivate，Herstellung und Verwendung in der Chemie und Elektrochemie。
公开(公告)号：EP0145518A1
公开(公告)日：1985-06-19
申请号：EP84401868.9
申请日：1984-09-20
申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
发明人： Fouletier, Mireille , Armand, Michel
IPC分类号： C08F8/00
CPC分类号： C08F8/00 , C08F8/02 , C08F8/22 , C08F8/30 , C08F8/42 , C08F8/26 , C08F114/26 , C08F114/24 , C08F8/32
摘要： Les carbones polymères sont formés de chaînes de carbone linéaire dupliquées dans lesquelles les atomes de carbone sont organisés en cycles aromatiques et comprennent des motifs de structure -CR x H y - où R représente un alcoxy, -OH, un hydrocarbure aliphatique, une amine, un amide, un groupe cyano ou un radical cyclique aromatique ou hétérocyclique et x + y est inférieur à 0,5, y pouvant être nul.
摘要翻译：聚合物碳由重复的直链碳链组成，其中碳原子被组织成芳香环并且包含结构单元-CR xHy-，其中R表示烷氧基，-OH，脂族烃，胺，酰胺，氰基基团或芳族环状或杂环基，x + y低于0.5，y可以为0。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式