公开(公告)号：US4013661A

公开(公告)日：1977-03-22

申请号：US461685

申请日：1974-04-17

Applicant: Reinhard A. Sulzbach ,  Abul F. M. Iqbal

Inventor： Reinhard A. Sulzbach ,  Abul F. M. Iqbal

IPC: C07F7/10 ,  C08K5/544 ,  C10L1/14 ,  C10L1/22 ,  C10L1/24 ,  C10L1/28 ,  C07D215/58 ,  C07D211/92

CPC classification number: C10L1/14 ,  C07F7/10 ,  C08K5/5442 ,  C10L1/232 ,  C10L1/2443 ,  C10L1/28

Abstract: Substituted 1,2-dihydropyridines of the formula ##SPC1##In which R and R.sup.2 are selected from the group consisting of hydrogen, --NH.sub.2, silyl, silyl linked via oxygen, silyl linked via nitrogen, sulfamyl, organosulfonamido, nitro, organic radical, organic radical linked via oxygen, organic radical linked via sulfur, organic radical linked via nitrogen, organic radical linked via --SO-- and organic radical linked via --SO.sub.2 --; with the proviso that the R.sup.2 groupings when joined together form an ortho condensed cyclic or polycyclic hydrocarbon; R.sup.1 is a member selected from the group consisting of hydrogen, --NH.sub.2, silyl, silyl linked via oxygen, silyl linked via nitrogen, sulfamyl, organosulfonamido, nitro, organic radical, organic radical linked via oxygen, organic radical linked via sulfur, organic radical linked via nitrogen, organic radical linked via --SO-- organic radical linked via --SO.sub.2 --, mercapto, sulfino and sulfo; R.sup.3 is a member selected from the group consisting of hydrogen, halogen, and methyl; and Z is a member selected from the group consisting of halogen and an electron-withdrawing group containing an electronegative atom doubly or triply bonded to a more positive atom which atom is singly bonded to the carbon atom attached to the pyridine ring. Exemplary of such compositions is 1,4-bis(trimethylsilyl)-2-(1-cyanoethyl)-1,2-dihydropyridine. The compounds of the invention are useful as antioxidants for polyphenyl ethers, as stabilizers for halogenated polyhydrocarbons, as curing agents for silicones and epoxide resins, as dyeing improvers for polyesters and as fuel additives for imparting hypergolic properties.

公开(公告)号：US4381387A

公开(公告)日：1983-04-26

申请号：US275888

申请日：1981-06-22

Applicant: Reinhard A. Sulzbach

Inventor： Reinhard A. Sulzbach

IPC: C08F210/02 ,  C08F214/26 ,  H01B3/44 ,  C08F18/20 ,  C08F14/18 ,  C08F16/24

CPC classification number: C08F214/265 ,  C08F210/02 ,  H01B3/445 ,  Y10T428/3154 ,  Y10T428/31544

Abstract: Quaterpolymers are described which are composed of the following copolymerized monomer units (in mole %):(a) 55 to 30% of tetrafluoroethylene, (b) 60 to 40% of ethylene, (c) 10 to 1.5% of hexafluoropropylene and (d) 2.5 to 0.05% of a vinyl monomer which has "bulky" side chains and which can be, for example, a perfluorinated olefin, a perfluorinated vinyl ether, a perfluoroalkyl-substituted vinyl compound, a vinyl or allyl ether or an allyl or vinyl ester. The tensile strength and, in particular, the elongation at break at elevated temperatures is improved by the incorporation of both hexafluoropropylene and "bulky" vinyl monomers. The quaterpolymers are suitable for the manufacture of extruded articles, monofilaments and wire-coatings.

Abstract translation: 描述了由以下共聚单体单元（以摩尔％计）组成的四元共聚物：（a）55至30％的四氟乙烯，（b）60至40％的乙烯，（c）10至1.5％的六氟丙烯和（d ）2.5〜0.05％的具有“大体积”侧链的乙烯基单体，其可以是例如全氟化烯烃，全氟化乙烯基醚，全氟烷基取代的乙烯基化合物，乙烯基或烯丙基醚或烯丙基或乙烯基 酯。 通过加入六氟丙烯和“体积”乙烯基单体，提高了拉伸强度，特别是在高温下的断裂伸长率。 四元共聚物适用于制造挤出制品，单丝和电线涂层。

公开(公告)号：US4137055A

公开(公告)日：1979-01-30

申请号：US827104

申请日：1977-08-23

Applicant: Reinhard A. Sulzbach ,  Georg Oberauer

Inventor： Reinhard A. Sulzbach ,  Georg Oberauer

IPC: B01D53/14 ,  C07C17/00 ,  C07C17/38 ,  C07C21/18 ,  C07C21/185 ,  C07C67/00 ,  B01D19/00

CPC classification number: C07C17/38 ,  B01D53/1487 ,  B01D53/1493

Abstract: Tetrafluoroethylene, often obtained in industrial processes in admixture with nitrogen and/or carbon monoxide can be separated practically quantitatively by absorption in aliphatic hydrocarbons or aliphatic ketones boiling at a temperature in the range of from +50 to +130.degree. C at atmospheric pressure with subsequent desorption. A separation from three component mixtures is also possible. Components boiling at a temperature below the boiling point of tetrafluoroethylene, which are absorbed together with the tetrafluoroethylene, can be separated by known methods.

Abstract translation: 通常在与氮气和/或一氧化碳混合的工业过程中获得的四氟乙烯可以通过在大气压下在+ 50℃至+ 130℃的温度范围内沸腾的脂族烃或脂族酮中吸收来实际定量分离，随后 解吸。 与三组分混合物的分离也是可能的。 在与四氟乙烯一起吸收的低于四氟乙烯沸点的温度下沸腾的组分可以通过已知的方法分离。

公开(公告)号：US4379900A

公开(公告)日：1983-04-12

申请号：US270489

申请日：1981-06-04

Applicant: Reinhard A. Sulzbach

Inventor： Reinhard A. Sulzbach

IPC: C08F2/18 ,  C08F214/26 ,  C08F14/18

CPC classification number: C08F214/262

Abstract: Novel granular, free-flowing, non-melt-fabricable raw polymer powders of tetrafluoroethylene polymers consisting of 0.004 to 0.075 mole % of polymerized units of a perfluoroalkyl vinyl ether and of tetrafluoroethylene units, are described. These powders have an average particle diameter of 450 to 1,400 .mu.m, a bulk density of at least 570 g/l, a powder flow index of .ltoreq.5 seconds/50 g and a grain stability of .ltoreq.5.5 seconds/50 g. They are prepared direct by suspension polymerizing TFE in the presence of the perfluoroalkyl ether, while stirring, the calculated concentration of the ether in the gas phase being kept within the range from 0.1 to 1.0% by volume in the period of time until 1.5% by weight of solid polymer have been formed, and the polymerization being carried out under a total pressure of 5 to 11 bars. A further improvement in bulk density, powder flow and grain stability is achieved if the intensity of stirring is kept at a relatively low level in a critical range, beginning at the formation of 1.5 to 3% by weight of solid polymer and extending to the formation of 8 to 12% by weight of solid polymer. The raw polymer powders which can be obtained in this manner are suitable, as such and without further pretreatment, for the production of ram-extruded articles of all types.

Abstract translation: 描述了由0.004至0.075摩尔％的全氟烷基乙烯基醚和四氟乙烯单元的聚合单元组成的四氟乙烯聚合物的新型颗粒状，自由流动的不可熔融制造的聚合物原料。 这些粉末的平均粒径为450〜1400μm，堆积密度为至少570g / l，粉末流动指数为5秒/ 50g，颗粒稳定性为5.5秒/ 50 G。 它们通过在全氟烷基醚存在下通过悬浮聚合TFE直接制备，同时搅拌，计算出的气相中醚的浓度在0.1至1.0体积％的范围内，直至1.5％ 已经形成了固体聚合物的重量，聚合反应在5-11巴的总压力下进行。 如果在形成1.5至3重量％的固体聚合物并延伸至地层的开始时，如果在临界范围内将搅拌强度保持在较低水平，则可获得体积密度，粉末流动和颗粒稳定性的进一步改善 的8至12重量％的固体聚合物。 以这种方式可以获得的原料聚合物粉末本身是合适的，并且不需要进一步的预处理，用于生产所有类型的挤出挤压制品。

公开(公告)号：US4358348A

公开(公告)日：1982-11-09

申请号：US352347

申请日：1982-02-25

Applicant: Reinhard A. Sulzbach

Inventor： Reinhard A. Sulzbach

IPC: C07D301/32 ,  C07D303/48 ,  B01D3/40

CPC classification number: C07D303/48

Abstract: The separation of mixtures of hexafluoropropylene oxide and hexafluoropropylene is effected by extractive distillation in the presence of methylene chloride, whereby an excellent separating effect is achieved at a low energy consumption.

Abstract translation: 六氟环氧丙烷和六氟丙烯的混合物的分离是通过在二氯甲烷存在下萃取蒸馏进行的，从而在低能量消耗下实现了优异的分离效果。

公开(公告)号：US4692493A

公开(公告)日：1987-09-08

申请号：US847640

申请日：1986-04-03

Applicant: Reinhard A. Sulzbach ,  Konrad von Werner

Inventor： Reinhard A. Sulzbach ,  Konrad von Werner

IPC: C08L27/18 ,  C08F2/26 ,  C08F2/38 ,  C08F2/44 ,  C08F210/02 ,  C08F214/26 ,  C08L27/12

CPC classification number: C08F210/02 ,  C08F214/265

Abstract: Stable aqueous, colloidal dispersions, having a high shear stability, of copolymers of tetrafluoroethylene and ethylene, which may also contain at least one further comonomer, are described. Such dispersions are prepared in the presence of a mixture of perfluorooctanoic acid and perfluorononanoic or perfluorodecanoic acids or salts thereof.

Abstract translation: 描述了可能还含有至少一种其它共聚单体的四氟乙烯和乙烯的共聚物的稳定水溶胶体分散体，具有高剪切稳定性。 这种分散体是在全氟辛酸和全氟壬酸或全氟癸酸或其盐的混合物存在下制备的。

公开(公告)号：US4338237A

公开(公告)日：1982-07-06

申请号：US275881

申请日：1981-06-22

Applicant: Reinhard A. Sulzbach ,  Robert Hartwimmer

Inventor： Reinhard A. Sulzbach ,  Robert Hartwimmer

IPC: C08F210/00 ,  C08F2/22 ,  C08F2/26 ,  C08F2/38 ,  C08F10/00 ,  C08F14/00 ,  C08F210/02 ,  C08F214/26 ,  C08K5/32

CPC classification number: C08F214/265 ,  C08F210/02

Abstract: An improved process for the preparation of aqueous, colloidal dispersions of copolymers comprising at most 60 mole % of units of tetrafluoroethylene, 60 to 40 mole % of units of ethylene and 0 to 15 mole % of units of at least one other .alpha.-olefinic monomer, which can be copolymerized with tetrafluoroethylene and ethylene, in the presence of manganese compounds as the catalyst is described. In this process, the emulsion polymerization is carried out in an aqueous phase in the presence (a) of a chain transfer agent of the formula X--CH.sub.2 --COOR (X=Cl, Br, COOH, COOR, COCH.sub.3, CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7 ; and R=C.sub.1 -C.sub.4 -alkyl), and (b) of a compound which stabilizes the dispersion and has the formula ##STR1## (Y=COONH.sub.4, COOH, CH.sub.3, CH.sub.2 OH, CH.sub.2 COOH or CH.sub.2 COONH.sub.4). (b) can additionally contain an ammonium salt of an inorganic non-metal acid, for example ammonium chloride or fluoride. Terpolymers or quaterpolymers containing, in addition to tetrafluoroethylene and ethylene, preferably hexafluoropropylene and/or a "bulky" vinyl monomer as the third and/or fourth comonomer are preferably prepared. The copolymer dispersions thus prepared have very low coagulate contents and are very stable and the copolymers have melt flow indices most appropriate to the processing operations. They can be processed to coatings and shaped articles.

Abstract translation: 一种用于制备共聚物的水性胶态分散体的改进方法，其包含至多60摩尔％的四氟乙烯单元，60至40摩尔％的乙烯单元和0至15摩尔％的至少一种其它α-烯烃单体的单元 可以在作为催化剂的锰化合物的存在下与四氟乙烯和乙烯共聚。 在该方法中，乳液聚合在式（a）中存在的水相中进行：式（X-CH 2 -COOR）（X = Cl，Br，COOH，COOR，COCH 3，CH 3，C 2 H 5或 和（b）使分散体稳定并具有式（Y = COONH 4，COOH，CH 3，CH 2 OH，CH 2 COOH或CH 2 COONH 4）的化合物（R = C 1 -C 4 - 烷基）。 （b）可另外含有无机非金属酸的铵盐，例如氯化铵或氟化物。 优选制备除了四氟乙烯和乙烯以外，优选含有作为第三和/或第四共聚单体的六氟丙烯和/或“大体积”乙烯基单体的三元共聚物或四元共聚物。 如此制备的共聚物分散体具有非常低的凝固含量并且非常稳定，并且共聚物具有最适合于加工操作的熔体流动指数。 它们可以加工成涂层和成型制品。

公开(公告)号：US4216265A

公开(公告)日：1980-08-05

申请号：US946359

申请日：1978-09-27

Applicant: Reinhard A. Sulzbach

Inventor： Reinhard A. Sulzbach

IPC: B29B13/00 ,  B29B13/10 ,  C08F6/10 ,  C08F14/26 ,  C08J3/00 ,  C08J3/12 ,  B32B27/00

CPC classification number: C08J3/12 ,  B29B13/10 ,  C08F6/10 ,  C08J2327/18 ,  Y10T428/2982

Abstract: In a process for aftertreating thermally presintered polymers of tetrafluoroethylene the optionally comminuted powders are subjected, at temperatures below +80.degree. C., to the action of a gas jet mill. Preferred starting materials are tetrafluoroethylene polymers containing a small proportion of a modifying monomer. By the aftertreatment the bulk density and the flow index of the powders are considerably improved without a noticeable disintegration taking place. The aftertreated powders are used in the first place for the manufacture of shaped articles in extrusion devices with automatic feeding means.

Abstract translation: 在用于对四氟乙烯的热预烧结聚合物进行后处理的方法中，将任选粉碎的粉末在低于+ 80℃的温度下经受气体喷射磨的作用。 优选的原料是含有少量改性单体的四氟乙烯聚合物。 通过后处理，粉末的体积密度和流动指数显着提高，而没有发生明显的崩解。 后处理的粉末首先用于在具有自动进料装置的挤出装置中制造成形制品。