Method for the production of polyamides in extruders
    1.
    发明授权
    Method for the production of polyamides in extruders 有权
    在挤出机中生产聚酰胺的方法

    公开(公告)号:US08765902B2

    公开(公告)日:2014-07-01

    申请号:US12665585

    申请日:2008-06-11

    IPC分类号: C08G69/28

    摘要: In a process for preparing a polyamide based on dicarboxylic acids and diamines in an extruder, a solid mixture comprising a monomer mixture composed of 50 mol % of dicarboxylic acid mixture composed of from 60 to 88 % by weight of terephthalic acid and from 12 to 40% by weight of isophthalic acid, in which up to 20% by weight of the dicarboxylic acid mixture may also be replaced by other dicarboxylic acids, and 50 mol % of hexamethylenediamine which may be up to 20% by weight replaced by other C2-30-diamines, in a corotatory twin-screw extruder for a residence time of from 10 seconds to 30 minutes, is heated to a temperature in the range from 150 to 400° C. while removing steam and if appropriate diamines through venting orifices.

    摘要翻译: 在挤出机中制备基于二羧酸和二胺的聚酰胺的方法中,包含由50摩尔%的由对苯二甲酸的重量比为60-88%的二羧酸混合物和12-40的二羧酸混合物组成的单体混合物的固体混合物 重量%的间苯二甲酸,其中高达20重量%的二羧酸混合物也可以被其它二羧酸代替,并且50摩尔%的六亚甲基二胺可以被其他C2-30重量代替 - 二胺在旋转双螺杆挤出机中停留时间为10秒至30分钟,加热至150-400℃的温度,同时除去蒸汽,如果合适的话,将其加热至通过排气孔。

    COPOLYAMIDES
    2.
    发明申请
    COPOLYAMIDES 有权
    共聚酰胺

    公开(公告)号:US20120157594A1

    公开(公告)日:2012-06-21

    申请号:US13378980

    申请日:2010-06-15

    IPC分类号: C08K5/05

    摘要: What are described are a solution comprising a terpolymer formed from the monomers of components A, B and C, the total amount of which adds up to 100% by weight,a) 5 to 60% by weight of lactams as component A,b) 5 to 60% by weight of equimolar amounts of adipic acid and one or more aliphatic diamines as component B,c) 10 to 70% by weight of equimolar amounts of adipic acid and 4,4′-diaminodicyclohexylmethane (dicycan) as component C,in an aromatics-free solvent system comprising50 to 100% by weight of C1-4-alkanol,0 to 50% by weight of water andnot more than 10% by weight of further aromatics-free solvents,where the total amount of the solvent system adds up to 100% by weight, and a terpolymer formed from the monomers of components A, B and C, the total amount of which adds up to 100% by weight,a) 15 to 40% by weight of lactams as component A,b) 20 to 45% by weight of equimolar amounts of adipic acid and one or more aliphatic diamines as component B,c) 25 to 60% by weight of equimolar amounts of adipic acid and 4,4′-diaminodicyclohexylmethane (dicycan) as component C,excluding terpolymers formed from 30 to 40% by weight of component A, 30 to 40% by weight of component B and 30 to 40% by weight of component C.

    摘要翻译: 描述的是包含由组分A,B和C的单体形成的三元共聚物的溶液,其总量加至100重量%,a)5至60重量%的作为组分A的内酰胺,b) 5至60重量%的等摩尔量的己二酸和一种或多种脂族二胺作为组分B,c)10至70重量%的等摩尔量的己二酸和作为组分C的4,4'-二氨基二环己基甲烷(二环己烷) 在不含芳族化合物的溶剂体系中,其包含50至100重量%的C 1-4链烷醇,0至50重量%的水和不超过10重量%的其它不含芳族化合物的溶剂,其中 溶剂系统加入到100重量%,和由组分A,B和C的单体形成的三元共聚物,其总量加至100重量%,a)15至40重量%的作为组分的内酰胺 A,b)20〜45重量%的等摩尔量的己二酸和一种或多种作为组分B的脂族二胺,c)25至60重量% 的等摩尔量的己二酸和4,4'-二氨基二环己基甲烷(二环己烷)作为组分C,不包括由30至40重量%的组分A形成的三元共聚物,30至40重量%的组分B和30至40重量% 的组分C.

    CROSSLINKED POLYAMIDES
    3.
    发明申请
    CROSSLINKED POLYAMIDES 审中-公开
    交联聚氨酯

    公开(公告)号:US20120142887A1

    公开(公告)日:2012-06-07

    申请号:US13308707

    申请日:2011-12-01

    IPC分类号: C08G69/16

    CPC分类号: C08G69/18

    摘要: A process for crosslinking polyamides by reacting a compound of the general formula R1R2C═CR3—X in which R1, R2 and R3 are each independently hydrogen or an organic radical with a lactam A at a temperature of (−30) to 150° C., and then reacting with a lactam B, a catalyst and an activator at a temperature of 40 to 240° C.

    摘要翻译: 通过使通式为R 1 R 2 C = CR 3 -X的化合物(其中R 1,R 2和R 3各自独立地为氢或有机基团)与内酰胺A在(-30)至150℃的温度下反应来交联聚酰胺的方法。 然后在40〜240℃的温度下与内酰胺B,催化剂和活化剂反应。