Continuous preparation of nylon from aqueous salt solution in
precondensation zone having baffles
    1.
    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

    CPC分类号: C08G69/28

    摘要: 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.

    摘要翻译: 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。

    Continuous hydrolytic preparation of polylactams
    3.
    发明授权
    Continuous hydrolytic preparation of polylactams 失效
    多聚内酰胺的连续水解制备

    公开(公告)号:US4539391A

    公开(公告)日:1985-09-03

    申请号:US581711

    申请日:1984-02-21

    IPC分类号: C08G69/00 C08G69/16

    CPC分类号: C08G69/16

    摘要: Polylactams are prepared continuously by a process in which a lactam containing from 1 to 25% by weight of water is heated in a prepolymerization zone under a pressure of from 1 to 10 bar at from 220.degree. to 280.degree. C. for 1 to 10 minutes, water being vaporized at the same time, with the proviso that the degree of conversion on emergence from the prepolymerization zone is not less than 85%, the prepolymer and the vapor are separated continuously, and the prepolymer is passed into a polymerization zone and is polymerized further under superatmospheric pressure at from 240.degree. to 290.degree. C.

    摘要翻译: 连续制备聚内酰胺,其中将含有1至25重量%的水的内酰胺在预聚合区中在220-280℃的1至10巴的压力下加热1至10分钟 ,同时蒸发水,条件是预聚合区出现的转化度不低于85%,预聚物和蒸气连续分离,预聚物进入聚合区,并且是 在240〜290℃的超大气压下进一步聚合。

    Continuous preparation of nylon with diamine recycling
    4.
    发明授权
    Continuous preparation of nylon with diamine recycling 失效
    连续制备尼龙与二胺回收

    公开(公告)号:US4537949A

    公开(公告)日:1985-08-27

    申请号:US620563

    申请日:1984-06-14

    CPC分类号: C08G69/28

    摘要: Nylons are prepared by a continuous process in which, in an evaporator 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 vapors are separated continuously, the vapors are rectified and the entrained diamines are recycled, and the prepolymer is fed to a polycondensation zone and subjected to polycondensation under superatmospheric pressure of from 1 to 10 bar and at from 250.degree. to 300.degree. C., wherein the aqueous salt solution is heated under superatmospheric pressure of from 1 to 10 bar during a residence time of less than 60 seconds, with the proviso that, on leaving the evaporator zone, the degree of conversion is not less than 93% and the water content of the prepolymer is not more than 7% by weight.

    摘要翻译: 尼龙通过连续方法制备,其中在蒸发器区中将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,随着水的蒸发和预聚物的形成,预聚物和蒸气被连续分离,蒸气被精馏,夹带的二胺被再循环,并将预聚物进料到缩聚区,并在超大气压下进行缩聚 压力为1至10巴,在250至300℃,其中在低于60秒的停留时间内,盐水溶液在1至10巴的超大气压下加热,条件是在 离开蒸发区,转化度不低于93%,预聚物的含水量不超过7重量%。

    Continuous preparation of copolyamides from caprolactam and salt of
diamine and dicarboxylic acid
    5.
    发明授权
    Continuous preparation of copolyamides from caprolactam and salt of diamine and dicarboxylic acid 失效
    从己内酰胺和二胺和二羧酸的盐连续制备共聚酰胺

    公开(公告)号:US5039786A

    公开(公告)日:1991-08-13

    申请号:US500946

    申请日:1990-03-29

    IPC分类号: C08G69/36

    CPC分类号: C08G69/36

    摘要: Copolyamides are prepared by a continuous process in which(a) an aqueous solution of salts of equimolar amounts of diamines and dicarboxylic acids is passed, under superatmospheric pressure and with simultaneous evaporation of water, through a tubular precondensation zone with formation of a vapor phase and a prepolymer at above the melting point of the prepolymer,(b) the vapor phase is separated from the prepolymer melt,(c) the vapor phase is separated in a column into steam and an aqueous diamine solution, and the aqueous solution containing diamines is recycled to the polymerization,(d) the prepolymer melt is mixed with molten caprolactam at polyamide-forming temperatures, and(e) the mixture of prepolymer and caprolactam is passed downward through a vertical polymerization tube at polyamide-forming temperatures and a copolyamide is obtained.

    摘要翻译: 共聚酰胺通过连续方法制备,其中(a)等摩尔量的二胺和二羧酸的盐的水溶液在超大气压下通过管状预缩合区,同时蒸发水,并形成气相, 在预聚物熔点以上的预聚物,(b)将气相与预聚物熔体分离,(c)气相在塔中分离为蒸汽和二胺水溶液,含有二胺的水溶液为 再循环到聚合反应中,(d)预聚物熔体与聚酰胺形成温度下的熔融己内酰胺混合,(e)预聚物和己内酰胺的混合物在聚酰胺形成温度下向下通过垂直聚合管,得到共聚酰胺 。

    Device for drying and thermally treating granulates with an inert gas stream
    6.
    发明授权
    Device for drying and thermally treating granulates with an inert gas stream 有权
    用惰性气流干燥和热处理颗粒的装置

    公开(公告)号:US06754979B2

    公开(公告)日:2004-06-29

    申请号:US10130250

    申请日:2002-05-16

    IPC分类号: F26B308

    摘要: An apparatus (1) is proposed for drying and heat-treating pellets with a stream of inert gas, wherein the apparatus has a cuboid base unit (2) with a feed (3) for the pellets in its upper part and an outlet (4) in its lower part, with a feed (5) on one lateral surface and with an exhaust base (6) on the opposite lateral surface of the cuboid base unit (2) for the stream of inert gas, and also with distribution and retention equipment (7, 8) in the region of the feed (5) and, respectively, of the exhaust (6) for the stream of inert gas, where each of these extends essentially over the entire vertical cross section of the cuboid base unit (2).

    摘要翻译: 提出了一种用惰性气体流干燥和热处理颗粒的装置(1),其中该装置具有一个长方体底座单元(2),其上部具有用于颗粒的进料(3)和一个出口(4) )在其下部具有一个侧表面上的进料(5)和用于惰性气体流的长方体基部单元(2)的相对侧表面上的排气基底(6),并且还具有分布和保持 在进料(5)的区域和分别用于惰性气体流的排气(6)的区域中的设备(7,8),其中每个设备基本上在长方体基座单元的整个垂直横截面上延伸( 2)。

    Thermoplastic polyamide molding materials
    7.
    发明授权
    Thermoplastic polyamide molding materials 失效
    热塑性聚酰胺成型材料

    公开(公告)号:US5650466A

    公开(公告)日:1997-07-22

    申请号:US583189

    申请日:1996-01-04

    摘要: Thermoplastic molding materials containA) from 5 to 95% by weight of a semicrystalline, partly aromatic copolyamide composed ofa.sub.1) from 30 to 44 mol % of units which are derived from terephthalic acid,a.sub.2) from 6 to 20 mol % of units which are derived from isophthalic acid,a.sub.3) from 43 to 49.5 mol % of units which are derived from hexamethylenediamine anda.sub.4) from 0.5 to 7 mol % of units which are derived from aliphatic cyclic diamines of 6 to 30 carbon atoms, the molar percentages of the components a.sub.1) to a.sub.4) summing to 100%,B) from 5 to 95% by weight of a copolymer of vinylaromatic compounds with .alpha.,.beta.-unsaturated dicarboxylic anhydrides and .alpha.,.beta.-unsaturated dicarboximides,C) from 0 to 90% by weight of an SAN, ABS or ASA polymer or of a polymer of a C.sub.1 -C.sub.18 -alkyl ester of (meth)acrylic acid or of a mixture thereof,D) from 0 to 20% by weight of an elastomeric polymer,E) from 0 to 50% by weight of a fibrous or particulate filler andF) from 0 to 30% by weight of conventional additives and processing assistants,the percentages by weight of the components A) to F) summing to 100 %.

    摘要翻译: 热塑性成型材料含有A)5〜95重量%的半结晶部分芳族共聚酰胺,其由a1- 30〜44摩尔%的衍生自对苯二甲酸的单元组成,a2)6〜20摩尔%的单元, 衍生自间苯二甲酸,a3)43至49.5摩尔%的衍生自六亚甲基二胺的单元和a4)0.5至7摩尔%的衍生自6至30个碳原子的脂族环状二胺的单元,摩尔百分数 组分a1)至a4)相加至100%,B)5至95重量%的乙烯基芳族化合物与α,β-不饱和二羧酸酐和α,β-不饱和二羧酸酯的共聚物,C)0至90% 重量的SAN,ABS或ASA聚合物或(甲基)丙烯酸或其混合物的C 1 -C 18烷基酯的聚合物,D)0至20重量%的弹性体聚合物,E) 0至50重量%的纤维或颗粒填料和F)0至30重量%的c 常规添加剂和加工助剂,组分A)至F)的重量百分数相加至100%。

    Molding materials comprising polyarylene ethers and copolyamides
    8.
    发明授权
    Molding materials comprising polyarylene ethers and copolyamides 失效
    包含聚亚芳基醚和共聚酰胺的成型材料

    公开(公告)号:US5639833A

    公开(公告)日:1997-06-17

    申请号:US513631

    申请日:1995-08-10

    摘要: The invention is directed to molding materials containingA) from 1 to 99% by weight of polyarylene ethers having repeating units I ##STR1## where t and q may each be an integer 0, 1, 2 or 3,T, Q and Z may each be a chemical bond or --O--, --S--, --SO.sub.2 --, S.dbd.O, C.dbd.O, --N.dbd.N--, R.sup.a C.dbd.CR.sup.b -- or --CR.sup.c R.sup.d --, with the proviso that at least one of the groups T, Q and Z is --SO.sub.2 -- or C.dbd.O,R.sup.a and R.sup.b,R.sup.c and R.sup.d, andAr and Ar.sup.1 are as defined in the specification,B) from 1 to 99% by weight of copolyamides containingb.sub.1) from 30 to 44 mol % of units which are derived from terephthalic acid,b.sub.2) from 6 to 20 mol % of units which are derived from isophthalic acid,b.sub.3) from 43 to 49.5 mol % of units which are derived from hexamethylenediamine,b.sub.4) from 0.5 to 7 mol % of units which are derived from aliphatic cyclic diamines of 6 to 30 carbon atoms andb.sub.5) from 0 to 4 mol % of further polyamide-forming monomers which differ from b.sub.1) to b.sub.4),along with other optional additives.

    摘要翻译: 本发明涉及含有A)1至99重量%的具有重复单元I(I)的聚亚芳基醚的成型材料,其中t和q可各自为整数0,1,2或3,T,Q 和Z可以各自为化学键或-O - , - S - , - SO 2 - ,S = O,C = O,-N = N-,RaC = CRb-或-CRcRd-,条件是至少 T,Q和Z中的一个是-SO 2 - 或C = O,R a和R b,R c和R d,Ar和Ar 1如说明书中所定义,B)1至99重量%的含有b1 )来自对苯二甲酸的单元为30〜44摩尔%,b2)6〜20摩尔%来自间苯二甲酸的单元,b3)43〜49.5摩尔%的衍生自六亚甲基二胺的单元,b4 )0.5〜7摩尔%的衍生自6〜30个碳原子的脂肪族环状二胺的单元,b5)0〜4摩尔%的不同于b1)〜b4)的其他聚酰胺形成性单体,以及其它任选的 添加剂。

    Continuous preparation of aromatic polycondensates
    10.
    发明授权
    Continuous preparation of aromatic polycondensates 失效
    连续制备芳香族聚氧乙烯

    公开(公告)号:US5068308A

    公开(公告)日:1991-11-26

    申请号:US365130

    申请日:1989-06-12

    摘要: Aromatic polycondensates are prepared in a continuous process froma) aromatic hydroxy-, thio- and/or amino-carboxylic acids,b) aromatic dihydroxy-, dithio-, diamino- and/or hydroxy-amino compounds,c) urea as an optional component andd) a molar amount equivalent to the sum of components b) and c) of aromatic dicarboxylic acids,by1. reacting components a), b), d) and optionally c) with lower fatty acid anhydrides in excess at from 140.degree. to 280.degree. C. with distillative removal of fatty acids and fatty acid anhydrides,2. passing the oligomer mixture downward through a perpendicular precondensation zone to form a two-phase mixture of prepolymers and vaporous fatty acids,3. separating the prepolymers from the vaporous fatty acids and4. condensing the prepolymer in a condensation zone to give a granulable polycondensate.

    摘要翻译: 芳香族缩聚物以a)芳族羟基,硫代和/或氨基羧酸,b)芳族二羟基 - ,二硫代 - ,二氨基 - 和/或羟基 - 氨基化合物的连续方法制备,c)作为任选的 将组分a),b),d)和任选的c)与140以下的低级脂肪酸酐过量反应,得到芳族二羧酸的组分b)和c)的总和的摩尔量 DEG至280℃,蒸馏除去脂肪酸和脂肪酸酐,2.将低聚物混合物向下通过垂直预缩合区,形成预聚物和汽相脂肪酸的两相混合物,3.将预聚物与 蒸气脂肪酸,和4.将预聚物在冷凝区中缩合,得到可颗粒缩聚物。