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    Manufacture of nylon by adding liquid diamine to aqueous polyamide forming salt solution
    1.
    发明授权
    Manufacture of nylon by adding liquid diamine to aqueous polyamide forming salt solution 失效
    通过将液体二胺加入到聚酰胺形成盐水溶液中制造尼龙

    公开(公告)号：US4251653A

    公开(公告)日：1981-02-17

    申请号：US913748

    申请日：1978-06-08

    Applicant: Albrecht Eckell ,  Paul Matthies ,  Georg Pilz ,  Rudi-Heinz Rotzoll

    Inventor： Albrecht Eckell ,  Paul Matthies ,  Georg Pilz ,  Rudi-Heinz Rotzoll

    IPC: C08G69/00 ,  C08G69/28

    CPC classification number: C08G69/28

    Abstract: A process for the manufacture of nylons by heating an aqueous solution of a salt of an alkanedicarboxylic acid of 6 to 12 carbon atoms and a diamine of the formula NH.sub.2 RNH.sub.2, where R is alkylene of 6 to 12 carbon atoms or is a radical ##STR1## to a temperature at which a nylon is formed, under superatmospheric pressure and with removal of water. The solution used is an aqueous solution of from 75 to 90 percent strength by weight of a salt of a dicarboxylic acid and a diamine, which solution has been obtained by neutralizing a less concentrated salt solution, which contains an appropriate dissolved excess of the particular dicarboxylic acid, with the corresponding diamine. The nylons obtained are used for the manufacture of moldings.

    Abstract translation: 通过加热6至12个碳原子的烷二羧酸的盐的水溶液和式NH 2 R NH 2的二胺制备尼龙的方法，其中R是6至12个碳原子的亚烷基，或者是基团“ 达到形成尼龙的温度，在超大气压下和除去水。 所使用的溶液是二羧酸和二胺的重量百分比为75-90％重量的水溶液，该溶液是通过中和较不浓缩的盐溶液获得的，该盐溶液含有适当的溶解过量的特定二羧酸 酸，与相应的二胺。 获得的尼龙用于制造模制品。

    Continuous production of polycaprolactam having a regulated amino end group content
    3.
    发明授权
    Continuous production of polycaprolactam having a regulated amino end group content 失效
    连续生产具有调节氨基末端基团的聚碳酸酯

    公开(公告)号：US5149758A

    公开(公告)日：1992-09-22

    申请号：US713303

    申请日：1991-06-11

    Applicant: Paul Matthies

    Inventor： Paul Matthies

    IPC: C08G69/02 ,  C08G69/04 ,  C08G69/16

    CPC classification number: C08G69/16

    Abstract: Polycaprolactam having a regulated amino end group content is produced in a continuous process in which caprolactam is polymerized at 240.degree.-290.degree. C. in the presence of water as initiator and in the presence of a dicarboxylic acid as chain regulator by polymerizing caprolactam in a single stage in the presence of from 0.3 to 5% by weight of water and from 0.1 to 0.6% by weight of terephthalic acid and/or isophthalic acid, each percentage being based on caprolactam, at a uniform pressure through the entire polymerization time of from 1.0 to 1.9 bar, measured in the vapor phase above the polymerization zone, while maintaining a water content of from 0.1 to 0.5% by weight, until the sum total of the amino and carboxyl end group contents is from 115 to 150 meq/kg, with the proviso that the amino end group content does not drop below 25 meq/kg, measured on extracted polycaprolactam.

    Abstract translation: 具有调节氨基端基含量的聚己内酰胺在连续方法中制备，其中己内酰胺在水作为引发剂的存在下在240-290℃下聚合，并且在作为链调节剂的二羧酸存在下，通过在 在0.3至5重量％的水和0.1至0.6重量％的对苯二甲酸和/或间苯二甲酸的存在下，每个百分比基于己内酰胺，在均匀的压力下通过整个聚合时间从 1.0至1.9巴，在聚合区上方的汽相中测量，同时保持水含量为0.1至0.5重量％，直到氨基和羧基端基含量的总和为115至150毫当量/ 条件是在提取的聚己内酰胺上测定氨基端基含量不低于25meq / kg。

    Continuous preparation of nylon from aqueous salt solution in precondensation zone having baffles
    6.
    发明授权
    Continuous preparation of nylon from aqueous salt solution in precondensation zone having baffles 失效
    从具有挡板的预缩合区域的盐水溶液中连续制备尼龙

    公开(公告)号：US4540772A

    公开(公告)日：1985-09-10

    申请号：US620837

    申请日：1984-06-15

    Applicant: Gunter Pipper ,  Franz Schmidt ,  Rainer Theysohn ,  Siegfried Riegger ,  Eduard Heil ,  Hermann Fischer ,  Richard Thoma ,  Paul Matthies

    Inventor： Gunter Pipper ,  Franz Schmidt ,  Rainer Theysohn ,  Siegfried Riegger ,  Eduard Heil ,  Hermann Fischer ,  Richard Thoma ,  Paul Matthies

    IPC: C08G69/00 ,  C08G69/26 ,  C08G69/28 ,  C08L77/00

    CPC classification number: C08G69/28

    Abstract: Nylons are prepared by a continuous process in which, in a precondensation zone, an aqueous solution of a salt of a dicarboxylic acid of 6 to 18 carbon atoms and a diamine of 6 to 18 carbon atoms is heated to 250.degree.-300.degree. C. under superatmospheric pressure, with simultaneous vaporization of water and formation of a prepolymer, the prepolymer and the vapor are separated, and the former is fed into a polycondensation zone and condensed under superatmospheric pressure of from 1 to 10 bar and at from 250.degree. to 300.degree. C., wherein the aqueous salt solution is condensed under superatomspheric pressure of from 1 to 10 bar in the first third of the tubular precondensation zone provided with baffles, until the degree of conversion is not less than 93%, and the prepolymer and the vapor phase are brought into intimate contact with one another in the remaining two thirds of the precondensation zone.

    Abstract translation: 尼龙通过连续方法制备，其中在预缩合区中将6至18个碳原子的二羧酸盐和6至18个碳原子的二胺的水溶液加热至250-300℃。 在超大气压下，同时蒸发水和形成预聚物，将预聚物和蒸气分离，将前者加入缩聚区，并在1至10巴和250至300的超大气压下冷凝 ℃，其中盐水溶液在具有挡板的管状预缩合区的第一三分之一中在1至10巴的超大体压力下冷凝，直到转化率不低于93％，并且预聚物和 气相在预缩合区的剩余三分之二处彼此紧密接触。

    Hydrolytic polymerization of epsilon-caprolactam
    7.
    发明授权
    Hydrolytic polymerization of epsilon-caprolactam 失效
    ε-己内酰胺的水解聚合

    公开(公告)号：US4204049A

    公开(公告)日：1980-05-20

    申请号：US11647

    申请日：1979-02-12

    Applicant: Paul Matthies ,  Joachim Kunde ,  Werner Hoerauf

    Inventor： Paul Matthies ,  Joachim Kunde ,  Werner Hoerauf

    IPC: C08G69/16

    CPC classification number: C08G69/16

    Abstract: An improved process for the continuous polymerization of .epsilon.-caprolactam in the presence of water as initiator in a vertical downward-flow tubular reactor, in which the .epsilon.-caprolactam is partially polymerized at elevated temperature in a first, mechanically agitated reaction zone and is further polymerized in further reaction zones to the desired degree of polymerization. Poly-.epsilon.-caprolactam is discharged in the form of a melt. The polymerization is carried out at a gauge pressure of from 0.2 to 0.9 bar, constant in all reaction zones. The temperature in the first reaction zone is maintained according to the relationship t.ltoreq.265+43 p .degree.C., where p is the numerical value of the gauge pressure in bars which relationship is subject to the condition that the temperature be within the range of 260.degree. to 295.degree. C.

    Abstract translation: 在垂直向下流动的管式反应器中，在水作为引发剂存在下ε-己内酰胺的连续聚合的改进方法，其中ε-己内酰胺在第一机械搅拌的反应区中在升高的温度下部分聚合， 在进一步的反应区中聚合至所需的聚合度。 聚ε-己内酰胺以熔体的形式排出。 在0.2至0.9巴的表压下进行聚合，在所有反应区都是恒定的。 第一反应区中的温度根据t = 265 + 43 p℃的关系维持，其中p是以巴为单位的表压的数值，其关系受温度在 范围260〜295℃

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