公开(公告)号：US09284410B2

公开(公告)日：2016-03-15

申请号：US14406607

申请日：2012-06-19

申请人： Taku Ishimaru ,  Katsumi Akaike ,  Daisuke Kikuno ,  Tomoyuki Aoki ,  Minoru Noda ,  Yasunori Tsuda

发明人： Taku Ishimaru ,  Katsumi Akaike ,  Daisuke Kikuno ,  Tomoyuki Aoki ,  Minoru Noda ,  Yasunori Tsuda

IPC分类号： C08G69/26 ,  C08L77/06 ,  C08G69/36 ,  C08G69/28 ,  B29C47/10 ,  B29C47/36 ,  D01F6/90 ,  C08L77/00

CPC分类号： C08G69/26 ,  B29C47/1063 ,  B29C47/364 ,  C08G69/265 ,  C08G69/28 ,  C08G69/36 ,  C08L77/00 ,  C08L77/06 ,  D01F6/90

摘要： A method of producing a polyamide includes (i) polycondensating a polyamide precursor containing a salt made from a dicarboxylic acid and a diamine under pressure in a pre-polymerization tank to obtain a prepolymer, and (ii) highly polymerizing the prepolymer with an extruder, wherein when the prepolymer in a molten state which is obtained in the step (i) is fed, by a pump, to the low-pressure extruder from the pre-polymerization tank through a discharge side pipe disposed downstream of the pump, the prepolymer is fed such that the length L [cm] of the discharge side pipe and the linear velocity of discharge v [cm/s] of the prepolymer by the pump satisfy the relationship expressed by the equation, 0.1 [s]≦L/v

摘要翻译： 制备聚酰胺的方法包括：（i）在预聚合槽中将压缩下由二羧酸和二胺制成的盐的聚酰胺前体缩聚得到预聚物，和（ii）用挤出机使聚合物高度聚合， 其中当步骤（i）中获得的处于熔融状态的预聚物通过泵从预聚合槽通过布置在泵下游的排放侧管被泵送到低压挤出机中时，预聚物是 进料使得排出侧管的长度L [cm]和泵的预定液体的线速度v [cm / s]满足由式表示的关系：0.1 [s]＆nlE; L / v < 10 [s]。

公开(公告)号：US20150158977A1

公开(公告)日：2015-06-11

申请号：US14406607

申请日：2012-06-19

申请人： Taku Ishimaru ,  Katsumi Akaike ,  Daisuke Kikuno ,  Tomoyuki Aoki ,  Minoru Noda ,  Yasunori Tsuda

发明人： Taku Ishimaru ,  Katsumi Akaike ,  Daisuke Kikuno ,  Tomoyuki Aoki ,  Minoru Noda ,  Yasunori Tsuda

IPC分类号： C08G69/26

CPC分类号： C08G69/26 ,  B29C47/1063 ,  B29C47/364 ,  C08G69/265 ,  C08G69/28 ,  C08G69/36 ,  C08L77/00 ,  C08L77/06 ,  D01F6/90

摘要： A method of producing a polyamide includes (i) polycondensating a polyamide precursor containing a salt made from a dicarboxylic acid and a diamine under pressure in a pre-polymerization tank to obtain a prepolymer, and (ii) highly polymerizing the prepolymer with an extruder, wherein when the prepolymer in a molten state which is obtained in the step (i) is fed, by a pump, to the low-pressure extruder from the pre-polymerization tank through a discharge side pipe disposed downstream of the pump, the prepolymer is fed such that the length L [cm] of the discharge side pipe and the linear velocity of discharge v [cm/s] of the prepolymer by the pump satisfy the relationship expressed by the equation, 0.1 [s]≦L/v

摘要翻译： 制备聚酰胺的方法包括：（i）在预聚合槽中将压缩下由二羧酸和二胺制成的盐的聚酰胺前体缩聚得到预聚物，和（ii）用挤出机使聚合物高度聚合， 其中当步骤（i）中获得的处于熔融状态的预聚物通过泵从预聚合槽通过布置在泵下游的排放侧管被泵送到低压挤出机中时，预聚物是 进料使得排出侧管的长度L [cm]和泵的预定液体的线速度v [cm / s]满足由式表示的关系：0.1 [s]＆nlE; L / v < 10 [s]。