Continuous preparation of copolyamides
    2.
    发明授权
    Continuous preparation of copolyamides 失效
    连续制备共聚酰胺

    公开(公告)号:US5030709A

    公开(公告)日:1991-07-09

    申请号:US501034

    申请日:1990-03-29

    IPC分类号: C08G69/26 C08G69/28 C08G69/36

    摘要: Copolyamides which contain units of the formula --NH--(CH.sub.2).sub.4 --NH are prepared by a continuous process in whicha) an aqueous solution of from 5 to 80% by weight of a salt of 1,4-diaminobutane, and dicarboxylic acids and from 20 to 95% by weight of further polyamide-forming starting materials are heated to a temperature above the melting point of the copolyamide, with the addition of diamines and with vaporization of water, under superatmospheric pressure,b) the vapor phase and prepolymer are brought into intimate contact with one another,c) the prepolymer is separated from the vapor phase and the polymer is discharged after a total residence time of not more than 30 minutes, andd) diamines are separated off from the vapor phase and recycled to a).

    摘要翻译: 包含式-NH-(CH 2)4 -NH的单元的共聚酰胺通过连续方法制备,其中a)5-80重量%的1,4-二氨基丁烷的盐和二羧酸的水溶液 和20至95重量%的另外的聚酰胺形成原料在超大气压下加热至高于共聚酰胺熔点的温度,加入二胺并蒸发水,b)气相和预聚物 彼此紧密接触,c)将预聚物与气相分离,聚合物在总停留时间不超过30分钟后排出,并且d)将二胺从气相中分离并再循环至 一个)。

    Molding compositions based on modified polyaryl ethers
    4.
    发明授权
    Molding compositions based on modified polyaryl ethers 失效
    基于改性聚芳醚的成型组合物

    公开(公告)号:US5612425A

    公开(公告)日:1997-03-18

    申请号:US61537

    申请日:1993-05-14

    摘要: Molding compositions based on polyaryl ethers A, are obtainable by reacting polyaryl ethers I with repeating structural elements ##STR1## or derivatives thereof substituted by C.sub.1 -C.sub.6 -alkyl, alkoxy, aryl, chlorine or fluorine in the nucleus, where X and Z, independently of one another, are each --SO.sub.2 --, --O--, --S--, >C.dbd.O a chemical bond or --CRR'--, R and R' are each hydrogen, C.sub.1 -C.sub.6 -alkyl or alkoxy, R' is also aryl or fluoro- or chloro-substituted aryl, with the proviso that X and Z are not both --O--, with a reactive compound which, besides a C--C double or triple bond, contains one or more carbonyl, carboxylic acid, carboxylate, acid anhydride, amide, imide, carboxylic ester, amino, hydroxyl, epoxy, oxazoline, urethane, urea, lactam or halobenzyl moieties.

    摘要翻译: 通过使聚芳基醚I与重复结构单元(I)或其在核心中被C 1 -C 6 - 烷基,烷氧基,芳基,氯或氟取代的衍生物反应,可获得基于聚芳基醚A的成型组合物,其中X和 Z独立地为-SO 2 - , - O - , - S - ,> C = O化学键或-CRR' - ,R和R'各自为氢,C 1 -C 6烷基或烷氧基, R'也是芳基或氟或氯取代的芳基,条件是X和Z不同时为-O-,与反应性化合物一起,除了CC双键或三键外,还含有一个或多个羰基,羧酸 羧酸酯,酸酐,酰胺,酰亚胺,羧酸酯,氨基,羟基,环氧,恶唑啉,氨基甲酸酯,脲,内酰胺或卤代苄基部分。

    Partly aromatic copolyamide of reduced triamine content
    6.
    发明授权
    Partly aromatic copolyamide of reduced triamine content 失效
    部分芳族共聚酰胺减少三胺含量

    公开(公告)号:US5218082A

    公开(公告)日:1993-06-08

    申请号:US753104

    申请日:1991-08-30

    IPC分类号: C08G69/26 C08G69/36

    CPC分类号: C08G69/265 C08G69/36

    摘要: Partly aromatic copolyamides contain as essential componentsA) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,B) 0-50% by weight of units derived from .epsilon.-caprolactam andC) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,the components B) and/or C) accounting for a total of not less than 10% by weight of the total units and the copolyamide having a triamine content of less than 0.5% by weight.

    摘要翻译: 部分芳香族共聚酰胺含有必要成分A)40-90重量%的衍生自对苯二甲酸和六亚甲基二胺的单元,B)0-50重量%的衍生自ε-己内酰胺的单元和C)0-60重量%单元 衍生自己二酸和六亚甲基二胺的组分B)和/或C)占总单元总重不少于10重量%,三胺含量小于0.5重量%的共聚酰胺。

    Thermoplastic molding materials based on polyamide blends
    7.
    发明授权
    Thermoplastic molding materials based on polyamide blends 失效
    基于聚酰胺混合物的热塑性模塑材料

    公开(公告)号:US5071924A

    公开(公告)日:1991-12-10

    申请号:US376502

    申请日:1989-07-07

    IPC分类号: C08L21/00 C08L77/00

    CPC分类号: C08L77/00

    摘要: Thermoplastic molding materials contain, as essential components,A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting ofa.sub.1) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam anda.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,components a.sub.2) and/or a.sub.3) accounting altogether for not less than 10% by weight of the total number of units,B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A)and furthermoreC) 0-50% by weight of an elastomeric impact modifier andD) 0-60% by weight of fibrous or particulate fillers or a mixture of these.

    摘要翻译: 热塑性成型材料含有A)20-98重量%的部分芳族酰胺共聚物,其基本上由a1)40-90重量%的衍生自对苯二甲酸和六亚甲基二胺的单元组成,a2)0-50% 衍生自ε-己内酰胺的单元的重量和a3)0-60重量%衍生自己二酸和六亚甲基二胺的单元,组分a2)和/或a3)总计占总单元重量的10重量% B)2-80重量%的不同于A)的部分结晶的热塑性聚酰胺,此外C)0-50重量%的弹性体抗冲改性剂和D)0-60重量%的纤维或颗粒填料或 这些的混合物。