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    Thermal energy coagulation and washing of latex particles
    221.
    发明公开
    Thermal energy coagulation and washing of latex particles 失效
    凝血酶热能器和灭活剂。

    公开(公告)号：EP0460284A2

    公开(公告)日：1991-12-11

    申请号：EP90122738.9

    申请日：1990-11-28

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Kydonieus, Nicholas ,  Hall, Jeffrey Alan ,  Phillips, James Donald Jr. ,  Sturm, John August

    IPC: C08F6/22

    CPC classification number: C08F6/22

    Abstract: Increased efficiency coagulation and washing of latex particles is achieved by coagulating the latex to form particle flocks by application of a combination of mechanical and thermal energy, with up to about 85% of the applied energy being thermal energy. The flocks are thereafter washed by passage in counter-current relationship with wash water. The invention is particularly useful in the coagulation of fluorocarbon latices generated by polymerization, particularly emulsion polymerization.

    Abstract translation: 通过凝结胶乳以通过应用机械和热能的组合形成颗粒群来实现胶乳颗粒的提高效率凝结和洗涤，其中最多约85％的施加能量是热能。 然后通过与洗涤水逆流的关系洗涤羊群。 本发明特别可用于通过聚合，特别是乳液聚合产生的氟碳胶乳的凝结。

    Copolymers of vinylidene fluoride and hexafluoropropylene and process for preparing the same
    222.
    发明公开
    Copolymers of vinylidene fluoride and hexafluoropropylene and process for preparing the same 失效
    偏氟乙烯和Hexafluoropropren和其制备方法共聚物。

    公开(公告)号：EP0456019A1

    公开(公告)日：1991-11-13

    申请号：EP91106261.0

    申请日：1991-04-18

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Barber, Leonard Aloysius

    IPC: C08F214/28 ,  C08F214/22

    CPC classification number: C08F259/08 ,  C08F214/22 ,  C08F214/28

    Abstract: Melt processable copolymers of vinylidene fluoride and hexafluoropropylene, containing from about 1% to about 20% hexafluoropropylene by weight, are prepared by emulsion polymerization of vinylidene fluoride and hexafluoropropylene in a stirred aqueous reaction medium. The reaction medium is formed by charging to a heated reactor, water, vinylidene fluoride, an initiator to start the polymerization, and a water-soluble surfactant capable of emulsifying both the initiator and the reaction mass during polymerization. Additional amounts of vinylidene fluoride and initiator are fed to the reaction medium to continue polymerization of the vinylidene fluoride monomer until from abut 50% to abut 90% of the total weight of the vinylidene fluoride monomer utilized in the process has been added to the reaction medium. There is then added to the reaction medium (i) from about 1% to about 20% hexafluoropropylene by weight, based upon the combined weight of the hexafluoropropylene and the total weight of the vinylidene fluoride utilized in the process, and (ii) the balance of the vinylidene fluoride utilized in the process. The resulting vinylidene fluoride/hexafluoropropylene copolymers are characterized by improved mechanical properties and a DSC melting point typically in the range of from about 160°C to about 170°C, preferably from about 163°C to about 168°C.

    Abstract translation: 熔化的偏二氟乙烯和六氟丙烯共聚物加工，以重量计从约1％到大约20％六氟丙烯，通过偏二氟乙烯和六氟丙烯乳液聚合在搅拌wässrige反应介质来制备。 将反应介质通过充电到加热的反应器，水，偏二氟乙烯，在引发剂，开始聚合反应，并能够乳化这两种引发剂和聚合过程中反应物料的水溶性表面活性剂形成。 的偏二氟乙烯和引发剂额外量被馈送到反应介质中以继续偏二氟乙烯单体的聚合，直到从邻接50％至在该过程中使用的偏二氟乙烯单体的总重量的邻接的90％已被添加到反应介质中 ， 再有按重量加入到反应介质（i）从约1％至约20％的六氟丙烯，基于六氟丙烯的组合重量和的偏二氟乙烯的过程中使用的总重量，和（ii）的平衡 的偏氟乙烯的过程中使用。 将得到的偏二氟乙烯/六氟丙烯共聚物是通过改进的机械性能和在从约160℃至约170℃范围内的DSC熔点典型特征，优选从约163℃至约168℃。

    Process for removing tin compounds from exhaust gases
    224.
    发明公开
    Process for removing tin compounds from exhaust gases 失效
    Verfahren und Vorrichtung zum Entfernen von metallhaltigen Stoffen ausDämpfen。

    公开(公告)号：EP0418075A1

    公开(公告)日：1991-03-20

    申请号：EP90310016.2

    申请日：1990-09-13

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： De Graaf, Aart Pieter ,  Linder, Georg Heinrich ,  Hoekman, Leendert Cornelis

    IPC: B01D53/34

    CPC classification number: B01D53/64

    Abstract: A contaminated vapour stream, e.g. a tin-compound containing exhaust from a glass coating facility, is contacted with an acidic aqueous absorbing medium, preferably pH less than 2.5, which already contains some of the compound to be removed. Formation of precipitate is avoided. Contacting may be in one or more scrubber beds. The removed metal-containing species may be recovered from the absorbing medium for re-use.

    Abstract translation: 污染的蒸气流，例如 将含有来自玻璃涂布设备的废气的锡化合物与已经含有一些待除去的化合物的酸性含水吸收介质接触，优选pH小于2.5。 避免形成沉淀物。 接触可以在一个或多个洗涤床中。 可以从吸收介质中回收去除的含金属物质以供再利用。

    Process for continuous liquid phase reaction of hydrogen fluoride and 1,1,1,-trichloroethane to provide 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane mixtures
    225.
    发明公开
    Process for continuous liquid phase reaction of hydrogen fluoride and 1,1,1,-trichloroethane to provide 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane mixtures 失效
    对于氟化氢和1,1,1-三氯乙烷到1,1-二氯-1-氟乙烷的混合物和连续液相反应二氟乙烷1-氯-1,1-二过程。

    公开(公告)号：EP0402626A2

    公开(公告)日：1990-12-19

    申请号：EP90108813.8

    申请日：1990-05-10

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Wismer, John Aloysius

    IPC: C07C19/08 ,  C07C17/20

    CPC classification number: C07C17/206 ,  C07C19/12

    Abstract: A continuous non-catalytic process for the manufac­ture of 1,1-dichloro-1-fluoroethane/1-chloro-1,1-difluoro­ethane mixtures from 1,1-dichloro-1-fluoroethane is pro­vided. Hydrogen fluoride and 1,1,1-trichloroethane are continuously feed a molar ratio of from about 3.0 to about 5.2 to form a liquid phase hydrofluorination reaction mixture. Vapor phase reaction product is continuously withdrawn from the reaction zone, and hydrogen fluoride is continuously selectively refluxed back to the reaction mixture. 1,1,1-Trichloroethane utilization approaches 100%, with selectivity for 1,1-dichloro-1-fluoroethane between 15% and 85%, based upon the amount of 1,1-dichloro-­1-fluoroethane and 1-chloro-1,1-difluoroethane contained in the gaseous reaction product.

    Abstract translation: 提供了一种用于制造1,1-二氯-1-氟乙烷/ 1-氯-1,1-二氟乙烷的混合物，从1,1-二氯-1-氟乙烷的连续非催化过程。 氟化氢和1,1,1-三氯乙烷被连续地从约3.0至约5.2进料的摩尔比，以形成液相氢氟化反应混合物。 汽相反应产物被连续地从反应区中取出，和氟化氢可连续选择性回流回到反应混合物中。 1,1,1-三氯乙烷途径利用率为100％，以选择性15％和85％之间的1,1-二氯-1-氟乙烷，基于1,1-二氯-1-氟乙烷和1-氯的量 包含在气态反应产物1,1-二氟乙烷。

    Hindered amine light stabilizers containing aromatic carboxy groups and derivatives
    226.
    发明公开
    Hindered amine light stabilizers containing aromatic carboxy groups and derivatives 失效
    含有芳香族羧酸基团和衍生物的胺类光稳定剂

    公开(公告)号：EP0294818A3

    公开(公告)日：1990-07-18

    申请号：EP88109239.9

    申请日：1988-06-10

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Myers, Terry N.

    IPC: C07D401/04 ,  C08K5/34 ,  C07D401/14

    CPC classification number: C07D401/04 ,  C07D401/14 ,  C08K5/3435

    Abstract: There are provided hindered amine light stabilizers of the general formula
    wherein the hindered amine is attached to the nitrogen of an imide which also is attached to an aromatic group which contains a carboxy group and wherein
    R 1 is, e.g., hydrogen or substituted or unsubstituted aliphatic of 1-20 carbons; Xis
    R 2 is, e.g., oxyl, hydroxy or substituted or unsubstituted aliphatic acyl of 1-20 carbons; R 3 is e.g., hydrogen or substituted or unsubstituted aliphatic of 1-20 carbons; A is, e.g., halogen or sulfate; and R 4 is, e.g., hydroxy, halogen or a substituted or unsubstituted, mono or polyfunctional alcohol, amine, mercaptan or molecular mixture thereof, the carboxy group being a site for preparing unique derivatives, both polymeric and non-polymeric, useful as additives for preventing degradation of polymers and copolymers.

    Single-functional and mixtures of multifunctional oligomeric performance additive compositions, and their use
    227.
    发明公开
    Single-functional and mixtures of multifunctional oligomeric performance additive compositions, and their use 失效
    单官能添加剂和多功能低聚性能的添加剂和它们的用途的组合物。

    公开(公告)号：EP0332761A2

    公开(公告)日：1989-09-20

    申请号：EP88121572.7

    申请日：1988-12-23

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： MacLeay, Ronald Edward ,  Sanchez, Jose ,  Stein, Daryl Lee

    IPC: C08L101/00 ,  C08G63/76 ,  C08G65/00 ,  C08G75/14

    CPC classification number: C08L69/00 ,  C08K5/42 ,  C08L101/00 ,  C08L2666/14

    Abstract: The present invention comprises novel single-functional and mixtures of multi-functional oligomeric performance additive compounds having one or more components of Structure A
    (The definitions of R, Z1, Z2, Z3, A1, A2, A3 and y are given in the Summary Section), their uses and polymeric compounds and compositions containing them which have enhanced oxidative stabilities, enhanced ultraviolet (UV) and light stabilities and/or enhanced flame retardance. An example is the bis sulfonic acid bispotassium salt reaction product from an oligomeric caprolactone diol (TONE® 260), 2-sulfobenzoic acid anhydride and potassium carbonate, and use of this product, at levels up to about 3.0%, in a general purpose bisphenol A polycarbonate resin, to enhance the fire resistance or flame retardance of the polycarbonate resin.

    Abstract translation: 本发明包括新颖的单官能的且具有结构A 的一个或多个组件（R，Z1，Z2，Z3，A1，A2，A3和y的定义多功能低聚性能添加剂的化合物的混合物，给出 在摘要部分），它们的用途和聚合化合物和包含它们的组合物，其具有增强的氧化稳定性，增强的紫外线（UV）和光稳定性和/或增强的阻燃性。 一个例子是来自于低聚己内酯二醇（TONE TM 260），2-磺基苯甲酸酐和碳酸钾，和使用该产品的达磺酸bispotassium盐反应产物，其含量高达约3.0％，在通用的双酚 一种聚碳酸酯树脂，以增强耐火性或聚碳酸酯树脂的阻燃性。

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