Process for Recycling Polyacetals
    1.
    发明申请
    Process for Recycling Polyacetals 有权
    回收聚缩醛的方法

    公开(公告)号:US20140343302A1

    公开(公告)日:2014-11-20

    申请号:US14359333

    申请日:2012-11-23

    申请人: Ticona GMBH

    摘要: A process for recycling polyoxymethylene polymers is disclosed. A polyoyxmethylene polymer is at least partially dissolved in an aprotic compound. The resulting solution or suspension (liquid mixture) is then contacted with a catalyst which causes the polyoxymethylene polymer to be converted into a cyclic acetal. The cyclic acetal can be separated, collected and used in other processes. In one embodiment, the cyclic acetal may be used to produce a polyoxymethylene polymer.

    摘要翻译: 公开了一种再循环聚甲醛聚合物的方法。 聚亚甲基聚合物至少部分地溶解在非质子传递化合物中。 然后将所得溶液或悬浮液(液体混合物)与催化剂接触,催化剂使聚甲醛聚合物转化为环状缩醛。 环状缩醛可以分离,收集并用于其他工艺。 在一个实施方案中,环状缩醛可以用于制备聚甲醛聚合物。

    Process for recycling polyacetals
    3.
    发明授权
    Process for recycling polyacetals 有权
    聚缩醛回收方法

    公开(公告)号:US09365537B2

    公开(公告)日:2016-06-14

    申请号:US14359333

    申请日:2012-11-23

    申请人: Ticona GMBH

    摘要: A process for recycling polyoxymethylene polymers is disclosed. A polyoxymethylene polymer is at least partially dissolved in an aprotic compound. The resulting solution or suspension (liquid mixture) is then contacted with a catalyst which causes the polyoxymethylene polymer to be converted into a cyclic acetal. The cyclic acetal can be separated, collected and used in other processes. In one embodiment, the cyclic acetal may be used to produce a polyoxymethylene polymer.

    摘要翻译: 公开了一种再循环聚甲醛聚合物的方法。 聚甲醛聚合物至少部分溶解在非质子传递化合物中。 然后将所得溶液或悬浮液(液体混合物)与催化剂接触,催化剂使聚甲醛聚合物转化为环状缩醛。 环状缩醛可以分离,收集并用于其他工艺。 在一个实施方案中,环状缩醛可以用于制备聚甲醛聚合物。

    Initiator
    4.
    发明授权
    Initiator 有权
    发起人

    公开(公告)号:US09163120B2

    公开(公告)日:2015-10-20

    申请号:US14246536

    申请日:2014-04-07

    申请人: Ticona GmbH

    CPC分类号: C08G75/24 C08G2/06 C08G2/10

    摘要: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic add. The molar ratio of protic acid to salt is in the range from 1:0.01 to 1:2000. The initiator is used for example for cationic homo- or copolymerization of trioxane, and permits stable and flexible operation of the polymerization.

    摘要翻译: 用于阳离子聚合的引发剂包括质子酸的盐以及质子添加剂。 质子酸与盐的摩尔比在1:0.01至1:2000的范围内。 引发剂用于例如三恶烷的阳离子均聚或共聚,并且允许聚合的稳定和灵活的操作。

    Process For Recycling Polyacetals
    8.
    发明申请
    Process For Recycling Polyacetals 审中-公开
    回收聚缩醛的方法

    公开(公告)号:US20160280882A1

    公开(公告)日:2016-09-29

    申请号:US15179548

    申请日:2016-06-10

    申请人: Ticona GmbH

    摘要: A process for recycling polyoxymethylene polymers is disclosed. A polyoxymethylene polymer is at least partially dissolved in an aprotic compound. The resulting solution or suspension (liquid mixture) is then contacted with a catalyst which causes the polyoxymethylene polymer to be converted into a cyclic acetal. The cyclic acetal can be separated, collected and used in other processes. In one embodiment, the cyclic acetal may be used to produce a polyoxymethylene polymer.

    摘要翻译: 公开了一种再循环聚甲醛聚合物的方法。 聚甲醛聚合物至少部分溶解在非质子传递化合物中。 然后将所得溶液或悬浮液(液体混合物)与催化剂接触,催化剂使聚甲醛聚合物转化为环状缩醛。 环状缩醛可以分离,收集并用于其他工艺。 在一个实施方案中,环状缩醛可以用于制备聚甲醛聚合物。

    Process for Producing A Cyclic Acetal In A Heterogeneous Reaction System
    9.
    发明申请
    Process for Producing A Cyclic Acetal In A Heterogeneous Reaction System 有权
    在异相反应体系中生成环状缩醛的方法

    公开(公告)号:US20140350216A1

    公开(公告)日:2014-11-27

    申请号:US14359594

    申请日:2012-11-23

    申请人: Ticona GMBH

    IPC分类号: C07D323/06 C08G65/06

    摘要: A process for producing a cyclic acetal is disclosed. According to the process, a formaldehyde source is combined with an aprotic compound and contacted with a heterogeneous catalyst which causes the formaldehyde source to convert into a cyclic acetal such as trioxane. The catalyst, for instance, may comprise a solid catalyst such as an ion exchange resin. In one embodiment, the process is used for converting anhydrous formaldehyde gas to trioxane. The anhydrous formaldehyde gas may be produced form an aqueous formaldehyde solution by an extractive distillation.

    摘要翻译: 公开了一种制备环状缩醛的方法。 根据该方法,甲醛源与非质子化合物组合并与非均相催化剂接触,使得甲醛源转化为环状缩醛如三恶烷。 例如,催化剂可以包含固体催化剂,例如离子交换树脂。 在一个实施方案中,该方法用于将无水甲醛气体转化为三恶烷。 无水甲醛气体可以通过萃取蒸馏由甲醛水溶液形成。

    INITIATOR
    10.
    发明申请
    INITIATOR 有权
    发起者

    公开(公告)号:US20140221603A1

    公开(公告)日:2014-08-07

    申请号:US14246536

    申请日:2014-04-07

    申请人: Ticona GmbH

    IPC分类号: C08G75/24

    CPC分类号: C08G75/24 C08G2/06 C08G2/10

    摘要: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic add. The molar ratio of protic acid to salt is in the range from 1:0.01 to 1:2000. The initiator is used for example for cationic homo- or copolymerization of trioxane, and permits stable and flexible operation of the polymerization.

    摘要翻译: 用于阳离子聚合的引发剂包括质子酸的盐以及质子添加剂。 质子酸与盐的摩尔比在1:0.01至1:2000的范围内。 引发剂用于例如三恶烷的阳离子均聚或共聚,并且允许聚合的稳定和灵活的操作。