2,3,3,3-TETRAFLUORO-1-PROPENE AS DILUENT FOR THE PREPARATION OF NOVEL BUTYL RUBBERS
    1.
    发明申请
    2,3,3,3-TETRAFLUORO-1-PROPENE AS DILUENT FOR THE PREPARATION OF NOVEL BUTYL RUBBERS 有权
    2,3,3,3-四氢-1-丙酮作为制备新型丁二烯橡胶的稀释剂

    公开(公告)号:US20170044286A1

    公开(公告)日:2017-02-16

    申请号:US15307125

    申请日:2015-04-30

    IPC分类号: C08F210/12 C08C19/14

    摘要: The invention relates to an efficient polymerization process and its use to produce novel copolymers with a specific microstructure. In particular, the invention relates to butyl rubbers with novel microstructure, preferably those obtainable by copolymerization of monomer mixtures comprising isobutylene and isoprene in diluents comprising 2,3,3,3-tetrafluoro-1-propene. In a further aspect the invention relates to halogenated copolymers obtainable from such novel copolymers by halogenation.

    摘要翻译: 本发明涉及有效的聚合方法及其用于生产具有特定微结构的新型共聚物。 特别地,本发明涉及具有新颖微观结构的丁基橡胶,优选通过包含2,3,3,3-四氟-1-丙烯的稀释剂中包含异丁烯和异戊二烯的单体混合物共聚得到的丁基橡胶。 在另一方面,本发明涉及通过卤化从这种新型共聚物获得的卤化共聚物。

    COPOLYMER HAVING LOW CYCLIC OLIGOMER CONTENT
    3.
    发明申请
    COPOLYMER HAVING LOW CYCLIC OLIGOMER CONTENT 审中-公开
    具有低循环低聚物含量的共聚物

    公开(公告)号:US20170044284A1

    公开(公告)日:2017-02-16

    申请号:US15307111

    申请日:2015-04-28

    IPC分类号: C08F210/12

    摘要: A copolymer has low levels of cyclic oligomeric compounds, which are undesirable impurities in certain applications. The cyclic oligomeric compounds are provided in an advantageously low ratio of C21/C13 oligomers. The C13 oligomers are extractable using steam to further reduce the total amount of cyclic oligomers. A process for producing the copolymer having low levels of cyclic oligomers involves contacting at least one isoolefin monomer with at least one multiolefin and/or β-pinene monomer in the presence of at least one Lewis acid and at least one initiator in a diluent. The diluent contains a hydrofluorinated olefin (HFO) comprising at least three carbon atoms and at least three fluorine atoms. Hydrofluorinated olefins used in the present invention are better diluents for butyl slurry cationic polymerization than saturated hydrofluorocarbons.

    摘要翻译: 共聚物具有低水平的环状低聚化合物,这在某些应用中是不期望的杂质。 环状低聚化合物以有利的低比例的C 21 / C 13低聚物提供。 C13低聚物可使用蒸汽萃取,以进一步减少环状低聚物的总量。 制备具有低水平环状低聚物的共聚物的方法包括使至少一种异烯烃单体与至少一种多烯和/或β-蒎烯单体在稀释剂中至少一种路易斯酸和至少一种引发剂的存在下接触。 稀释剂含有包含至少三个碳原子和至少三个氟原子的氢氟化烯烃(HFO)。 用于本发明的氢氟化烯烃是比饱和氢氟烃更好的丁基浆料阳离子聚合的稀释剂。

    HYDROFLUORINATED OLEFINS (HFO'S) AS DILUENTS FOR BUTYL RUBBER PRODUCTION
    6.
    发明申请
    HYDROFLUORINATED OLEFINS (HFO'S) AS DILUENTS FOR BUTYL RUBBER PRODUCTION 有权
    氢氧化烯烃(HFO'S)作为丁腈橡胶生产的稀释剂

    公开(公告)号:US20170044285A1

    公开(公告)日:2017-02-16

    申请号:US15307114

    申请日:2015-04-28

    IPC分类号: C08F210/12

    摘要: A process for producing a copolymer involves contacting at least one isoolefin monomer with at least one multiolefin and/or β-pinene monomer in the presence of at least one Lewis acid and at least one initiator in a diluent. The diluent contains a hydrofluorinated olefin (HFO) comprising a tetrafluorinated propene. Copolymers produced by a process of the present invention have a cyclic oligomer content lower than comparable polymers produced in a butyl rubber slurry process using 1,1,1,2-tetrafluoroethane and/or methyl chloride as a diluent as well as a more favourable ratio of C21/C13. Hydrofluorinated olefins used in the present invention are better diluents for butyl slurry cationic polymerization than saturated hydrofluorocarbons.

    摘要翻译: 制备共聚物的方法包括在至少一种路易斯酸和稀释剂中的至少一种引发剂的存在下使至少一种异烯烃单体与至少一种多烯烃和/或β-蒎烯单体接触。 稀释剂含有包含四氟化丙烯的氢氟化烯烃(HFO)。 通过本发明的方法制备的共聚物的环状低聚物含量低于使用1,1,1,2-四氟乙烷和/或甲基氯作为稀释剂的丁基橡胶浆料方法中生产的可比聚合物,以及更优选的比例 的C21 / C13。 用于本发明的氢氟化烯烃是比饱和氢氟烃更好的丁基浆料阳离子聚合的稀释剂。

    COPOLYMER HAVING LOW ISOPRENOID CONTENT
    7.
    发明申请
    COPOLYMER HAVING LOW ISOPRENOID CONTENT 有权
    具有低异构体含量的共聚物

    公开(公告)号:US20170051090A1

    公开(公告)日:2017-02-23

    申请号:US15307128

    申请日:2015-04-28

    IPC分类号: C08F210/12

    摘要: A copolymer has low levels of isoprenoid (short chain branching) structures. A process for producing the copolymer having low isoprenoid content involves contacting at least one isoolefin monomer with at least one multiolefin and/or β-pinene monomer in the presence of at least one Lewis acid and at least one initiator in a diluent. The diluent may contain a hydrofluorinated olefin (HFO) comprising at least three carbon atoms and at least three fluorine atoms. Hydrofluorinated olefins used in the present invention are better diluents for butyl slurry cationic polymerization than saturated hydrofluorocarbons. Blends of saturated hydrofluorocarbons (e.g. 1,1,1,2-tetrafluoroethane) with an inert solvent (e.g. methyl chloride) may also be used as diluents.

    摘要翻译: 共聚物具有低水平的类异戊二烯(短链支化)结构。 制备具有低类异戊二烯含量的共聚物的方法包括使至少一种异烯烃单体与至少一种多烯烃和/或β-蒎烯单体在稀释剂中的至少一种路易斯酸和至少一种引发剂的存在下接触。 稀释剂可以含有包含至少三个碳原子和至少三个氟原子的氢氟化烯烃(HFO)。 用于本发明的氢氟化烯烃是比饱和氢氟烃更好的丁基浆料阳离子聚合的稀释剂。 饱和氢氟烃(如1,1,1,2-四氟乙烷)与惰性溶剂(如甲基氯)的混合物也可用作稀释剂。