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    PROCESS FOR THE PRODUCTION OF POLYAMIDES
    1.
    发明申请
    PROCESS FOR THE PRODUCTION OF POLYAMIDES 审中-公开
    生产聚氨酯的方法

    公开(公告)号：US20150368400A1

    公开(公告)日：2015-12-24

    申请号：US14763606

    申请日：2014-01-30

    Applicant: DSM IP ASSETS B.V.

    Inventor： Rudy RULKENS ,  Renier Henricus Maria KIERKELS ,  Theo Joseph CUYPERS ,  Geert Adelina Rudolf VANDEN POEL ,  Eric GROLMAN

    IPC: C08G69/36

    CPC classification number: C08G69/36 ,  C08G69/26 ,  C08G69/265 ,  C08G69/28 ,  C08G69/30 ,  C08L77/06

    Abstract: The invention relates to process for the production of a PA-MXDT/ZT polyamide comprising the following steps: (i) providing a solid MXDT/ZT salt, wherein MXD is meta-xylylenediamine, T is terephthalic acid, Z is a linear aliphatic diamine having from 2 to 12 carbon atoms and wherein the amount of Z is from 0 to 40 mole % with respect to the total of the amount of MXD and Z units in the polymer, (ii) solid state polymerizing the MXDT/ZT salt to obtain the polyamide, wherein the solid state polymerization is carried out at least partly under a diamine atmosphere. The invention further relates to a PA-MXDT/ZT polyamide, wherein the polymer has a glass transition temperature fulfilling the following relation: Tg>226−475*Y, wherein Y is the weight ratio g/g of all CH2 groups in the polymer with respect to the total weight of the polyamide.

    Abstract translation: 本发明涉及生产PA-MXDT / ZT聚酰胺的方法，包括以下步骤：（i）提供固体MXDT / ZT盐，其中MXD为间苯二甲胺，T为对苯二甲酸，Z为直链脂族二胺 具有2至12个碳原子，并且其中Z的量相对于聚合物中MXD和Z单元的总量为0至40摩尔％，（ii）使MXDT / ZT盐的固态聚合以获得 聚酰胺，其中固态聚合至少部分地在二胺气氛下进行。 本发明还涉及PA-MXDT / ZT聚酰胺，其中聚合物具有满足以下关系的玻璃化转变温度：Tg> 226-475×Y，其中Y是聚合物中所有CH 2基团的重量比g / g 相对于聚酰胺的总重量。

    PA-MXDT/ZT COPOLYMERS
    2.
    发明申请
    PA-MXDT/ZT COPOLYMERS 审中-公开
    PA-MXDT / ZT共聚物

    公开(公告)号：US20150368399A1

    公开(公告)日：2015-12-24

    申请号：US14763601

    申请日：2014-01-30

    Applicant: DSM IP ASSETS B.V.

    Inventor： Rudy RULKENS ,  Theo Joseph CUYPERS ,  Geert Adelina Rudolf VANDEN POEL ,  Eric GROLMAN ,  Renier Henricus Maria KIERKELS

    IPC: C08G69/30 ,  C08G69/26

    CPC classification number: C08G69/30 ,  C08G69/265 ,  C08G69/28 ,  C08L77/06

    Abstract: The invention related to a process for the production of a PA-MXDT/ZT polyamide copolymer comprising the following steps: •i. providing a solid MXDT/ZT salt, wherein MXD is meta-xylylenediamine, T is terephthalic acid, Z is a linear aliphatic diamine having from 2 to 12 carbon atoms and wherein amount of Z is from 5 to 40 mole % with respect to the total amount of MXD and Z units in the copolymer and wherein the MXDT/ZT salt is provided by dosing of liquid diamines MXD and Z to a powder of terephthalic acid; •ii. heating the solid MXDT/ZT salt to a first condensation temperature (Tc1) thereby condensing the salt in solid state to produce a solid polyamide copolymer, wherein Tc1 is below the melting temperature (Tm-salt) of said salt. The invention further relates to a PA-MXDT/ZT polyamide copolymer, wherein MXD is meta-xylylenediamine, T is terephthalic acid, Z is a linear aliphatic diamine having from 2 to 12 carbon atom, Z is from 5 to 40 mole % with respect to the total of MXD and Z units in the copolymer.

    Abstract translation: 本发明涉及一种生产PA-MXDT / ZT聚酰胺共聚物的方法，包括以下步骤：i。 提供固体MXDT / ZT盐，其中MXD是间二甲苯二胺，T是对苯二甲酸，Z是具有2至12个碳原子的直链脂族二胺，其中Z的量相对于总量为5〜40摩尔％ 共聚物中MXD和Z单元的量，其中MXDT / ZT盐通过将液体二胺MXD和Z加入到对苯二甲酸的粉末中而提供; •ii。 将固体MXDT / ZT盐加热至第一冷凝温度（Tc1），由此使固体状态的盐浓缩，生成固体聚酰胺共聚物，其中Tc1低于所述盐的熔融温度（Tm-盐）。 本发明还涉及一种PA-MXDT / ZT聚酰胺共聚物，其中MXD为间苯二甲胺，T为对苯二甲酸，Z为具有2至12个碳原子的直链脂族二胺，Z为5至40摩尔％，相对于 共聚物中的MXD和Z单元总数。

    PROCESS FOR PREPARING NYLON SALT AND ITS POLYMERIZATION
    5.
    发明申请
    PROCESS FOR PREPARING NYLON SALT AND ITS POLYMERIZATION 审中-公开

    公开(公告)号：US20170218122A1

    公开(公告)日：2017-08-03

    申请号：US15329404

    申请日：2015-07-24

    Applicant: DSM IP ASSETS B.V.

    Inventor： Bas VAN LAARHOVEN ,  Eric GROLMAN ,  Michiel MUYRIS

    IPC: C08G69/30 ,  C08G69/26

    Abstract: The present invention relates to a process for preparing a granular nylon salt material, wherein an aqueous mixture, comprising at least 65 wt. % of salt components, and at most 35 wt. % of an aqueous medium, the weight percentages (wt. %) being relative to the total weight of the aqueous mixture, is flashed from a pressure vessel via a flash valve into a flash chamber, thereby evaporating the aqueous medium in an amount sufficient to result in a residual moisture content of at most 7.5 wt. %, and forming a granular nylon salt material. The invention also relates to a process for preparing a nylon polymer, comprising direct solid state polymerization of the granular salt material prepared by flash granulation.

    CONTINUOUS SOLID-STATE POLYMERIZATION PROCESS AND REACTOR COLUMN FOR USE THEREIN
    7.
    发明申请
    CONTINUOUS SOLID-STATE POLYMERIZATION PROCESS AND REACTOR COLUMN FOR USE THEREIN 有权

    公开(公告)号：US20230054441A1

    公开(公告)日：2023-02-23

    申请号：US17785815

    申请日：2020-12-18

    Applicant: DSM IP ASSETS B.V.

    Inventor： Eric GROLMAN

    IPC: C08G69/30 ,  B01J19/00 ,  B01J19/24

    Abstract: The invention relates to a continuous solid-state polymerization process for preparing a polyamide derived from diamine and dicarboxylic acid, wherein the salt is polymerized in a reactor column comprising successive multifunctional zones comprising heating sections and gas-outlet sections, and a residence zone comprising at least one gas-inlet section, wherein the heating sections comprise static heat exchangers. The invention also relates to the reactor column and use thereof in a continuous solid-state polymerization process.

    PROCESS FOR PREPARING NYLON SALT AND ITS POLYMERIZATION
    8.
    发明申请
    PROCESS FOR PREPARING NYLON SALT AND ITS POLYMERIZATION 审中-公开

    公开(公告)号：US20200172673A1

    公开(公告)日：2020-06-04

    申请号：US16779364

    申请日：2020-01-31

    Applicant: DSM IP ASSETS B.V.

    Inventor： Bas VAN LAARHOVEN ,  Eric GROLMAN ,  Michiel MUYRIS

    IPC: C08G69/30 ,  C08G69/26 ,  C08G69/28

    Abstract: The present invention relates to a process for preparing a granular nylon salt material, wherein an aqueous mixture, comprising at least 65 wt. % of salt components, and at most 35 wt. % of an aqueous medium, the weight percentages (wt. %) being relative to the total weight of the aqueous mixture, is flashed from a pressure vessel via a flash valve into a flash chamber, thereby evaporating the aqueous medium in an amount sufficient to result in a residual moisture content of at most 7.5 wt. %, and forming a granular nylon salt material. The invention also relates to a process for preparing a nylon polymer, comprising direct solid state polymerization of the granular salt material prepared by flash granulation.

    PROCESS FOR PRODUCING A SEMI-AROMATIC SEMI-CRYSTALLINE POLYAMIDE
    9.
    发明申请
    PROCESS FOR PRODUCING A SEMI-AROMATIC SEMI-CRYSTALLINE POLYAMIDE 有权
    用于生产半芳族半结晶聚酰胺的方法

    公开(公告)号：US20160137781A1

    公开(公告)日：2016-05-19

    申请号：US14899404

    申请日：2014-06-16

    Applicant: DSM IP ASSETS B.V.

    Inventor： Rudy RULKENS ,  Eric GROLMAN ,  Geert Adelina Rudolf VANDEN POEL ,  Renier Henricus Maria KIERKELS ,  Theo Joseph CUYPERS ,  Constantine D. PAPASPYRIDES ,  Athanasios D. PORFYRIS

    IPC: C08G69/26 ,  C08G69/30

    CPC classification number: C08G69/265 ,  C08G69/30 ,  C08L77/00 ,  C08L77/06

    Abstract: The invention relates to a process for the preparation of semi-crystalline semi-aromatic polyamide by direct solid-state polymerization of a diamine-dicarboxylic acid salt, comprising steps of (a) providing at least two salts of terephthalic acid and diamine, wherein each of these diamine/terephthalic acid salts is in solid state and has a melting temperature of at least Tx, wherein Tx is at least 260° C.; (b) preparing a mixture of the diamine/terephthalic acid salts, while retaining the salts in solid state; and (c) heating the mixture obtained from step (b) in the solid state to a temperature (T-c) in the range from 200° C. to 260° C., under a pressure below the saturation vapour pressure of water at said temperature, thereby condensing and polymerizing the salts and forming a semi-crystalline semi-aromatic polyamide in solid form.

    Abstract translation: 本发明涉及通过二胺二羧酸盐的直接固态聚合制备半结晶半芳族聚酰胺的方法，包括以下步骤：（a）提供至少两种对苯二甲酸和二胺的盐，其中各 的这些二胺/对苯二甲酸盐是固态的，其熔融温度至少为Tx，其中Tx至少为260℃。 （b）制备二胺/对苯二甲酸盐的混合物，同时保持固体状态的盐; 和（c）在所述温度下在低于饱和蒸汽压的压力下，将从固体状态得到的混合物加热至温度（Tc）在200℃至260℃的范围内 从而使盐缩合和聚合并形成固体形式的半结晶半芳族聚酰胺。

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