Preparation of poly-2-pyrrolidone with N-(2-caprolactim)-caprolactam
accelerator
    2.
    发明授权
    Preparation of poly-2-pyrrolidone with N-(2-caprolactim)-caprolactam accelerator 失效
    用N-(2-己内酰胺) - 己内酰胺促进剂制备聚-2-吡咯烷酮

    公开(公告)号:US4362862A

    公开(公告)日:1982-12-07

    申请号:US230796

    申请日:1981-02-02

    IPC分类号: C08G69/00 C08G69/24

    CPC分类号: C08G69/24

    摘要: A new type of poly-2-pyrrolidone suitable for melt spinning and a process for its preparation. The new poly-2-pyrrolidone is characterized in that the polymer in the virgin state has a relative viscosity (1 gram of polymer in 100 ml of 96% sulphuric acid at 20.degree. C.) of between 2.2 and 7.0, shows a weight loss of less than 5% by weight when heated from 20.degree. C. to the onset temperature of thermal degradation at a rate 4.degree. C. per minute, the ratio between the relative viscosities after and before melt spinning ranges between 0.50:1 and 0.95:1, and the relative viscosity after melt spinning is at least 1.90. The new poly-2-pyrrolidone is prepared by polymerization of 2-pyrrolidone in the presence of an anionic catalyst and an accelerator wherein N-(2-caprolactim)-caprolactam is used as the accelerator in an amount of between 0.05 and 5.0 mole percent relative to the monomer, and the polymerization is carried out at a temperature of between about 25.degree. and 70.degree. C. until a relative viscosity of at least 2.2 is obtained.

    摘要翻译: 一种适用于熔融纺丝的新型聚-2-吡咯烷酮及其制备方法。 新的聚-2-吡咯烷酮的特征在于,处于初始状态的聚合物具有2.2至7.0之间的相对粘度(1克聚合物,在100毫升96%硫酸中,20℃)为2.2至7.0,显示出重量损失 在从20℃加热至每分钟4℃的热降解开始温度时小于5重量%,熔融纺丝之后和之后的相对粘度之比在0.50:1至0.95:1之间, 1,熔融纺丝后的相对粘度为1.90以上。 新的聚-2-吡咯烷酮是通过在阴离子催化剂和促进剂存在下聚合2-吡咯烷酮来制备的,其中使用N-(2-己内酰胺) - 己内酰胺作为促进剂,其量为0.05-5.0mol% 相对于单体,聚合在约25℃至70℃的温度下进行,直至获得至少2.2的相对粘度。

    Polymerization process using a sodium carboxylactamate catalyst
    3.
    发明授权
    Polymerization process using a sodium carboxylactamate catalyst 失效
    使用羧甲基纤维素钠催化剂的聚合方法

    公开(公告)号:US4264503A

    公开(公告)日:1981-04-28

    申请号:US794447

    申请日:1977-05-06

    申请人: Robert Bacskai

    发明人: Robert Bacskai

    CPC分类号: C07D209/12 C08G69/24

    摘要: The polymerization of 2-pyrrolidone is achieved in high yield in the presence of a sodium-derived catalyst activator produced by the reaction of carbon dioxide with the sodium lactamate derived from the reaction of a sodium alkoxide and a 5-7 membered-ring lactam in an inert liquid nonsolvent.

    摘要翻译: 在通过二氧化碳与衍生自醇钠和5-7元环内酰胺的反应的氨基甲酸铵反应产生的钠衍生的催化剂活化剂存在下,2-吡咯烷酮的聚合得到高收率 惰性液体非溶剂。

    Polymerization of 2-pyrrolidone with cesium or rubidium catalyst
    4.
    发明授权
    Polymerization of 2-pyrrolidone with cesium or rubidium catalyst 失效
    用铯或铷催化剂聚合2-吡咯烷酮

    公开(公告)号:US4247684A

    公开(公告)日:1981-01-27

    申请号:US84815

    申请日:1979-10-15

    IPC分类号: C08G69/24

    CPC分类号: C08G69/24

    摘要: There is disclosed a method of forming pure white polymers of 2-pyrrolidone when using SO.sub.2 as the activator. The method involves the use of the rubidium or cesium salt of 2-pyrrolidone as the alkaline catalyst in place of the sodium or potassium salt customarily used and which cause the formation of yellow polymer.

    摘要翻译: 公开了当使用SO 2作为活化剂时形成2-吡咯烷酮纯白色聚合物的方法。 该方法包括使用2-吡咯烷酮的铷或铯盐作为碱性催化剂代替常规使用的钠盐或钾盐,并引起黄色聚合物的形成。

    Polymerization of 2-pyrrolidone with quaternary ammonium accelerator by
recovering and reusing same
    5.
    发明授权
    Polymerization of 2-pyrrolidone with quaternary ammonium accelerator by recovering and reusing same 失效
    通过回收和重复使用季铵加速剂聚合2-吡咯烷酮

    公开(公告)号:US4247683A

    公开(公告)日:1981-01-27

    申请号:US084814

    申请日:1979-10-15

    IPC分类号: C08G69/24 C08G69/28

    CPC分类号: C08G69/24 C08G69/28

    摘要: A method of recovering and recycling quaternary ammonium accelerators for the polymerization of 2-pyrrolidone is disclosed. The method consists of removing the quaternary ammonium compound together with unpolymerized 2-pyrrolidone by washing the polymer with a solvent for both, such as water or methanol, neutralizing the solution immediately after washing and then removing the solvent at a sufficiently low temperature so that the quaternary ammonium compound is not decomposed.

    摘要翻译: 公开了回收和回收用于2-吡咯烷酮聚合的季铵促进剂的方法。 该方法包括用未聚合的2-吡咯烷酮除去季铵化合物,用溶剂如水或甲醇洗涤聚合物,洗涤后立即中和溶液,然后在足够低的温度下除去溶剂,使得 季铵化合物不分解。

    Polyamide copolymers
    6.
    发明授权
    Polyamide copolymers 失效
    聚酰胺共聚物

    公开(公告)号:US4218509A

    公开(公告)日:1980-08-19

    申请号:US558032

    申请日:1975-03-13

    摘要: Filaments and fibers formed from a ternary fibre-forming polyamide consisting essentially of the polymeric condensation product of (1) at least 50 percent by weight of hexamethylene diammonium adipate, (2) 20-40 percent by weight of hexamethylene diammonium terephthalate and (3) 2-20 percent by weight of a third polyamide.

    摘要翻译: 由(1)至少50重量%的己二酸六亚甲基二铵,(2)20-40重量%的对苯二甲酸六亚甲基酯和(3)的聚合缩合产物组成的三元纤维形成聚酰胺形成的长丝和纤维, 2-20重量%的第三聚酰胺。

    Polymerization of 2-pyrrolidone with CO.sub.2 /SO.sub.2
    7.
    发明授权
    Polymerization of 2-pyrrolidone with CO.sub.2 /SO.sub.2 失效
    2-吡咯烷酮与CO2 / SO2的聚合

    公开(公告)号:US4215211A

    公开(公告)日:1980-07-29

    申请号:US871272

    申请日:1978-01-23

    申请人: Mitchell Danzik

    发明人: Mitchell Danzik

    IPC分类号: C08G69/24

    CPC分类号: C08G69/24

    摘要: An improved process for the polymerization of 2-pyrrolidone provides high-molecular-weight poly-2-pyrrolidone at higher rates of conversion by effecting the alkaline-catalyzed polymerization in the presence of a synergistic activator consisting of carbon dioxide and sulfur dioxide.

    摘要翻译: 用于2-吡咯烷酮聚合的改进方法通过在由二氧化碳和二氧化硫组成的协同活化剂的存在下进行碱催化聚合而提供高转化率的高分子量聚-2-吡咯烷酮。

    Catalyst for the polymerization of 2-pyrrolidone from alkali metal
    8.
    发明授权
    Catalyst for the polymerization of 2-pyrrolidone from alkali metal 失效
    用于从碱金属聚合2-吡咯烷酮的催化剂

    公开(公告)号:US4145519A

    公开(公告)日:1979-03-20

    申请号:US794445

    申请日:1977-05-06

    申请人: Robert Bacskai

    发明人: Robert Bacskai

    IPC分类号: C08G69/24

    CPC分类号: C08G69/24

    摘要: The process of making catalyst for the alkaline catalyzed polymerization of 2-pyrrolidone, in which an alkali metal is contacted with a 5-7 membered-ring lactam and the product alkali metal lactamate is obtained by distillation in the residuum containing about 50-95% of the total lactam. The alkali metal lactamate so obtained is used as a catalyst in the polymerization of 2-pyrrolidone, or may be contacted with carbon dioxide to form an adduct which finds use as an activator in the polymerization of 2-pyrrolidone.

    摘要翻译: 通过在含有约50-95重量%的内酯的残留物中蒸馏得到碱金属与5-7元环内酰胺接触的2-吡咯烷酮碱催化聚合催化剂和产物碱金属乳酸铵的方法, 的内酰胺。 如此获得的碱金属氨基甲酸铵用作2-吡咯烷酮聚合中的催化剂,或者可以与二氧化碳接触以形成在2-吡咯烷酮的聚合中用作活化剂的加合物。

    Catalyst preparation for the polymerization of pyrrolidone
    9.
    发明授权
    Catalyst preparation for the polymerization of pyrrolidone 失效
    用于吡咯烷酮聚合的催化剂制备

    公开(公告)号:US4138546A

    公开(公告)日:1979-02-06

    申请号:US856824

    申请日:1977-12-02

    申请人: Robert Bacskai

    发明人: Robert Bacskai

    IPC分类号: C08G69/24

    CPC分类号: C08G69/24

    摘要: In the preparation of a catalyst for the alkalinecatalyzed polymerization of pyrrolidone, an alkali metal alkoxide is contacted with excess 2-pyrrolidone and the product alcohol is removed by passing an inert gas through the reaction mixture at high temperatures.

    Catalyst for polymerization of 2-pyrrolidone
    10.
    发明授权
    Catalyst for polymerization of 2-pyrrolidone 失效
    2-吡咯烷酮聚合催化剂

    公开(公告)号:US4125523A

    公开(公告)日:1978-11-14

    申请号:US794446

    申请日:1977-05-06

    申请人: Robert Bacskai

    发明人: Robert Bacskai

    IPC分类号: C08G69/24

    CPC分类号: C08G69/24

    摘要: In an improved process for making catalyst for the alkaline-catalyzed polymerization of 2-pyrrolidone, potassium metal is contacted with a 5-7 membered-ring lactam and the product, potassium lactamate, is substantially isolated. The potassium lactamate so-derived finds use as a catalyst in the polymerization of 2-pyrrolidone or may be contacted with carbon dioxide to form an isolatable adduct which is used as an activator in the polymerization of 2-pyrrolidone.

    摘要翻译: 在制备用于2-吡咯烷酮的碱催化聚合的催化剂的改进方法中,使金属钾与5-7元环内酰胺接触,并且产物,即乳酰胺钾基本上是分离的。 所得衍生的这种乳酸铵可用作2-吡咯烷酮聚合中的催化剂,或与二氧化碳接触形成可分离的加合物,其用作2-吡咯烷酮聚合中的活化剂。