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1.发明授权Covulacanizable compositions of fluorelastomers having an improved chemical stability 失效具有改善的化学稳定性的荧光体的可共聚组合物
公开(公告)号：US5177148A
公开(公告)日：1993-01-05
申请号：US572323
申请日：1990-08-23
摘要： Covulcanizable compositions comprising (A) 55-100% by weight of an elastomeric copolymer of vinylidene fluoride with perfluoropropene optionally tetrafluoroethylene and containing from 0.001 to 2% by weight of bromine; (B) 0-45% by weight of a tetrafluoroethylene and propylene copolymer; (C) 0.7-2.5 parts for 100 parts of mix (A)+(B) of a bisphenol compound; (D) 0.3-1.5 parts for 100 parts of mix (A)+(B) of an organic guaternary compound of ammonium, phosphonium or aminophosphonium; (E) 0.4-5 parts for 100 parts of mix (A)+(B) of an organic peroxide; (F) 1-5% by weight of (A)+(B) of a peroxide cross-linking coagent.
摘要翻译： 可共聚组合物，其包含（A）55-100重量％的偏二氟乙烯与全氟丙烯任选的四氟乙烯的弹性体共聚物并含有0.001至2重量％的溴; （B）0-45重量％的四氟乙烯和丙烯共聚物; （C）100份双酚化合物的混合物（A）+（B）为0.7-2.5份; （D）100份的混合物（A）+（B）为铵，鏻或氨基鏻的有机季铵化合物的0.3-1.5份; （E）100份有机过氧化物的混合物（A）+（B）0.4-5份; （F）1-5重量％的（A）+（B）过氧化物交联助剂。
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2.发明授权Process for the preparation of curable fluoroelastomers and products so obtained 失效制备如此获得的可固化的含氟弹性体和产品的方法
公开(公告)号：US4745165A
公开(公告)日：1988-05-17
申请号：US882724
申请日：1986-07-07
IPC分类号： A61K31/44 , A61K31/505 , C07D405/12 , C07D405/14 , C07D513/04 , C08F2/38 , C08F14/22 , C08F14/28 , C08F16/14 , C08F214/22 , C08F214/28 , C08F216/14 , C08K3/00 , C08K3/20 , C08K5/17 , C08K5/19 , C08L27/16 , C08F16/24 , C08F2/00
CPC分类号： C08F2/38 , C08F214/222
摘要： Process for the preparation of curable fluoroelastomers comprising reacting form 35 to 80 mol % of vinylidene fluoride, from 15 to 35 mol % of hexafluoropropene, from 0 to 30 mol % of another comonomer selected from fluoroolefins and/or perfluorovinyl ethers and from 0.01 to 1 mol % of a brominated fluorovinyl ether having general formula:CF.sub.2 BR--(R.sub.f).sub.n --O--CF.dbd.CF.sub.2wherein R.sub.f is a fluorinated alkylene radical containing from 1 to 9 carbon atoms and n can be either 0 or 1, in the presence of a known polymerization initiator for fluoroelastomers, and of small amounts of a chain-transfer agent having general formula:R--(CF.sub.2 Br).sub.mwherein m is either 1 or 2; when m is 1, R can be either bromine or a perfluoroalkyl radical of 2 to 4 carbon atoms containing a bromine atom bonded to a secondary carbon atom; and when m is 2, R is an alkylene radical of up to 4 carbon atoms containing a bromineatom bonded to a secondary carbon atom.
摘要翻译： 制备可固化含氟弹性体的方法，包括使35至80摩尔％的偏二氟乙烯，15至35摩尔％的六氟丙烯，0至30摩尔％的选自氟代烯烃和/或全氟乙烯基醚的共聚单体和0.01至1 mol％的具有通式CF 2 BR-（R f）n O-CF = CF 2的溴化氟乙烯基醚，其中R f是含有1至9个碳原子的氟化亚烷基，n可以是0或1，在已知的 含氟弹性体的聚合引发剂和少量具有通式R-（CF 2 Br）m的链转移剂，其中m为1或2; 当m为1时，R可以是溴或含有2-4个碳原子的含有与原子键连接的溴原子的全氟烷基; 当m为2时，R为含有与二级碳原子键合的溴原子的至多4个碳原子的亚烷基。
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3.发明授权Processing-coadjuvating additives for rubbers vulcanizable by means of peroxides 失效用于过氧化物可加工的橡胶加工添加剂
公开(公告)号：US5061759A
公开(公告)日：1991-10-29
申请号：US679127
申请日：1991-03-28
申请人： Giulio Tommasi , Raffaele Ferro , Gianna Cirillo
发明人： Giulio Tommasi , Raffaele Ferro , Gianna Cirillo
摘要： The use of liquid neutral perfluoropolyethers in amounts below 1 part by weight per 100 parts by weight of elastomer, and of derivatives thereof having brominated end groups, in amounts of 0.01 to 5 parts by weight per 100 parts by weight of elastomer, having a molecular weight ranging from 500 to 10,000, as additives in rubber mixes vulcanizable with peroxides, in order to improve the processability in the extrusion and the detachability of the vulcanized article from the molding dies.
摘要翻译： 液体中性全氟聚醚的用量为每100重量份弹性体低于1重量份的弹性体及其具有溴化端基的衍生物，其用量为每100重量份弹性体0.01至5重量份，具有分子量 重量范围在500至10,000之间，作为可与硫酸过氧化物硫化的橡胶混合物中的添加剂，以提高硫化制品的挤出加工性和脱模性。
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4.发明授权Perfluoropolyethers having brominated end groups and fluoroelastomers obtained therefrom 失效具有溴化端基的全氟聚醚和由其获得的含氟弹性体
公开(公告)号：US5155282A
公开(公告)日：1992-10-13
申请号：US605421
申请日：1990-10-30
CPC分类号： C08L21/00 , C08G65/005 , C08L27/12
摘要： New perfluoropolyethers comprising repeating units chosen from among ##STR1## statistically distributed along the chain, having a controlled molecular weight and brominated end groups, prepared starting from the product of the photochemical oxidation of C.sub.2 F.sub.4, and/or C.sub.3 F.sub.6, containing peroxidic oxygen, and subsequent treatment in liquid phase with bromine, at temperatures ranging from -40.degree. to 130.degree. C. in the presence of ultraviolet radiations, said new perfluoropolyethers derivatives being useful as additives in rubber mixes vulcanizable with peroxides, in amounts of 0.01 to 5 parts by w per 100 parts by weight of elastomer, optionally in combination with non brominated perfluoropolyethers, to improve the processability in the extrusion and the detachability of the vulcanized articles from the molding.
摘要翻译： 新的全氟聚醚包含选自沿着链统计分布的具有受控分子量和溴化末端基团的重要单元的重复单元，其由含有过氧化氧的C2F4的光化学氧化产物和/或C3F6产物制备，随后 所述新的全氟聚醚衍生物在紫外线辐射的存在下在-40℃至130℃的温度范围内用溴液相处理，所述新的全氟聚醚衍生物可用作可硫化为过氧化物的橡胶混合物中的添加剂，其量为0.01至5重量份 每100重量份弹性体，任选地与非溴化全氟聚醚组合，以改善硫化制品的挤出加工性和脱模性。
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5.发明授权Perfluoropolyethers having brominated end groups and fluoroelastomers obtained therefrom 失效具有溴化端基的全氟聚醚和由其获得的含氟弹性体
公开(公告)号：US5026786A
公开(公告)日：1991-06-25
申请号：US251356
申请日：1988-09-30
CPC分类号： C08G65/005
摘要： New perfluoropolyethers comprising repeating units chosen from among ##STR1## statistically distributed along the chain, having a controlled molecular weight and brominated end groups, prepared starting from the product of the photochemical oxidation of C.sub.2 F.sub.4, and/or C.sub.3 F.sub.6, containing peroxidic oxygen, and subsequent treatment in liquid phase with bromine, at temperatures ranging from -40 to 130.degree. C. with the presence of ultraviolet radiations, said new perfluoropolyethers derivatives being useful as additives in rubber mixes vulcanizable with peroxides, in amounts of 0.01 to 5 parts by w per 100 parts by weight of elastomer, optionally in combination with non brominated perfluoropolyethers to improve the processability in the extrusion and the detachability of the vulcanized articles from the molding.
摘要翻译： 新的全氟聚醚包含选自沿着链统计分布的具有受控分子量和溴化末端基团的重要单元的重复单元，其由含有过氧化氧的C2F4的光化学氧化产物和/或C3F6产物制备，随后 所述新的全氟聚醚衍生物可用于作为可硫化的过氧化物的橡胶混合物中的添加剂，其用量为0.01-5重量份 100重量份的弹性体，任选地与非溴化全氟聚醚组合，以改善硫化制品的挤出加工性和脱模性。
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6.发明授权
公开(公告)号：US5045143A
公开(公告)日：1991-09-03
申请号：US423559
申请日：1989-10-16
申请人： Vincenzo Arcella , Raffaele Ferro , Giulio Tommasi
发明人： Vincenzo Arcella , Raffaele Ferro , Giulio Tommasi
IPC分类号： B32B15/08 , C08K5/5399
CPC分类号： B32B15/08 , C08K5/5399 , Y10T428/3154
摘要： Metal-fluoroelastomer composites constituted by a metal part and by a cured fluoroelastomer part bonded to each other with high adhesion strength, wherein the fluoroelastomeric part is constituted by a copolymer containing from 35 to 80 mol % T of vinylidene fluoride, from 15 to 35 mol % of hexafluoropropene, from 0 to 30 mol % of another comonomer selected from fluoro-olefins and/or perfluorovinyl ethers, and from 0.001 to 2 wt. % of bromine.
摘要翻译： 金属 - 含氟弹性体复合材料由金属部分和固化的含氟弹性体部分组成，粘合强度高，其中氟弹性体部分由含有35至80摩尔％的偏二氟乙烯，15至35摩尔的共聚物构成 ％的六氟丙烯，0至30mol％的选自氟代烯烃和/或全氟乙烯基醚的另一种共聚单体，和0.001至2wt。 ％的溴。
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公开(公告)号：US06767977B2
公开(公告)日：2004-07-27
申请号：US10324124
申请日：2002-12-20
IPC分类号： C08F11418
CPC分类号： C08F214/184 , C08F216/1466
摘要： Semicrystalline sulphonic fluorinated ionomers having an equivalent weight higher than 700 g/eq, up to 1,700, comprising: (A) monomeric units deriving from one or more fluorinated monomers containing at least one ethylene unsaturation; (B) fluorinated monomeric units containing sulphonyl groups —SO2F in such amount to give the above equivalent weight, deriving from F2C═CF—O—(CF2)q—SO2F, q being an integer equal to 2 or 3; and having the following properties for a TFE/(B) copolymer: hydration, expressed in % of H2O at 100° C. absorbed by the film prepared from the ionomer and after tranformation from the —SO2F form into the —SO3H form, having the following values: at 750 EW higher than 55%, pref. >70% at 850 EW ″ 45%, ″ >55% at 1,000 EW ″ 35%, ″ >40% at 1,100 EW ″ 28%, ″ >32% at 1,200 EW ″ 23%, ″ >25%.
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公开(公告)号：US06639011B2
公开(公告)日：2003-10-28
申请号：US10324123
申请日：2002-12-20
IPC分类号： C08L1102
CPC分类号： C08F214/184 , C08F216/1466
摘要： A polymerization process in aqueous emulsion of: (I) one or more fluorinated monomers containing at least one ethylene unsaturation; (II) one or more fluorinated monomers, containing sulphonyl groups —SO2F; said process comprising the use of a surfactant having the formula: Rf—X−M+ wherein X is equal to —COO, —SO3; M is selected from H, NH4, alkaline metal; Rf represents a (per)fluoropolyether chain, preferably having number average molecular weight comprised between about 230 and about 1,800.
摘要翻译： 水乳液中的聚合方法：（I）含有至少一个乙烯不饱和度的一种或多种氟化单体;（II）含有磺酰基-SO 2 F的一种或多种氟化单体;所述方法包括使用具有下式的表面活性剂： 其中X等于-COO，-SO 3; M选自H，NH 4，碱金属; R f表示（全）氟聚醚链，优选数均分子量在约230至约1800之间。
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公开(公告)号：US4186180A
公开(公告)日：1980-01-29
申请号：US897741
申请日：1978-04-17
CPC分类号： C01B17/453
摘要： Process and apparatus are disclosed for the preparation of sulphur hexafluoride of high purity, starting from elemental fluorine and sulphur, both in gaseous phase, and operating with an excess of fluorine, characterized in that the fluorine is fed into a reaction chamber through inlets in a metal plate, maintained at between 30.degree. and 70.degree. C., while the sulphur is fed in through the nozzle of a burner, by regulating a current of an inert gas which is saturated with sulphur by passing same through a zone containing molten sulphur at a temperature between 250.degree. and 500.degree. C., and subsequently superheating the inert gas thus saturated with sulphur to a temperature between 300.degree. and 550.degree. C., and introducing a separate current of the same inert gas between the plate and the burner so as to ensure that the flame that develops when the sulphur and the fluorine come into reactive contact with each other shall be kept insulated from the nozzle, and recovering and purifying the resulting sulphur hexafluoride.
摘要翻译： 公开了用于制备高纯度六氟化硫的方法和装置，从元素氟和硫开始，两者在气相中，并且与过量的氟一起操作，其特征在于，氟通过入口中的入口进料到反应室中 金属板保持在30℃和70℃之间，而硫通过燃烧器的喷嘴进入，通过调节硫饱和的惰性气体的电流通过含有熔融硫的区域， 温度在250-500℃之间，然后将硫饱和的惰性气体过热至300-550℃，并在板和燃烧器之间引入相同惰性气体的单独电流，以便 为了确保硫和氟彼此反应接触时产生的火焰应与喷嘴保持绝缘，并回收和净化残余物 六氟化硫。
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公开(公告)号：US4246236A
公开(公告)日：1981-01-20
申请号：US48165
申请日：1979-06-12
CPC分类号： C01B17/453
摘要： Apparatus is disclosed for the carrying out of gaseous phase reactions, illustrated by way of example by the preparation of sulphur hexafluoride of high purity, starting from elemental fluorine and sulphur, both in gaseous phase. One of the gaseous reactants, e.g., the fluorine, is fed into a reaction chamber through inlets in a metal plate, maintained at between 30.degree. and 70.degree. C. while the other, e.g., sulphur in gaseous phase, is fed in through the nozzle of a burner, e.g., by regulating a current of an inert gas which is saturated with sulphur by passing same through a zone containing molten sulphur at a temperature between 250.degree. and 500.degree. C., and subsequently superheating the inert gas thus saturated with sulphur to a temperature between 300.degree. and 550.degree. C., and introducing a separate current of the same inert gas between the plate and the burner so as to ensure that the flame that develops when the sulphur and the fluorine come into reactive contact with each other shall be kept insulated from the nozzle.
摘要翻译： 公开了用于进行气相反应的装置，例如通过以气相形式从元素氟和硫开始制备高纯度的六氟化硫。 气态反应物（例如氟）中的一种通过金属板中的入口进料到反应室中，保持在30℃和70℃之间，而另一个例如气相中的硫通过 燃烧器的喷嘴，例如通过在250℃和500℃之间的温度下通过使含有熔融硫的区域通过相同的方式调节硫饱和的惰性气体的电流，并且随后将由此饱和的惰性气体过热 硫至300℃至550℃的温度，并在板和燃烧器之间引入相同惰性气体的单独电流，以确保当硫和氟与每个反应性接触时产生的火焰 其他应与喷嘴保持绝缘。
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