Continuous preparation of linear high molecular weight polyamides having
regulated amino and carboxyl end group content
    1.
    发明授权
    Continuous preparation of linear high molecular weight polyamides having regulated amino and carboxyl end group content 失效
    连续制备具有调节氨基和羧基端基含量的线性高分子量聚酰胺

    公开(公告)号:US5140098A

    公开(公告)日:1992-08-18

    申请号:US729787

    申请日:1991-07-10

    IPC分类号: C08G69/28

    CPC分类号: C08G69/28

    摘要: Linear high molecular weight polyamides containing a regulated level of amino and carboxyl end groups are prepared in a continuous process by reacting polyamides in the melt with polyamide-forming diamines or dicarboxylic acids by continuous mixing for a residence time of .ltoreq.10 minutes, granulating the polyamide, and further condensing the polyamide granules thus obtained in solid phase in the presence of inert gases until the viscosity has reached the desired level.

    摘要翻译: 通过使熔体中的聚酰胺与形成聚酰胺的二胺或二羧酸反应,通过连续混合10分钟的停留时间,制备含有调节氨基和羧基端基水平的线性高分子量聚酰胺,制粒 聚酰胺,并且在惰性气体的存在下,将由此获得的聚酰胺颗粒进一步冷凝,直到粘度达到所需水平。

    Catalytic, solid state process for the preparation of linear polyamides
    2.
    发明授权
    Catalytic, solid state process for the preparation of linear polyamides 失效
    用于制备线性聚氨酯的催化,固态过程

    公开(公告)号:US5128442A

    公开(公告)日:1992-07-07

    申请号:US681255

    申请日:1991-04-08

    IPC分类号: C08G69/30 C08G69/28

    CPC分类号: C08G69/28

    摘要: A process for the preparation of a linear polyamide by reacting the appropriate dicarboxylic acid and diamine in a liquid reaction medium with the addition of a catalytically effective phosphorus compound, removing the reaction medium to give a solid salt, precondensing the latter in the solid phase at a temperature of from 140.degree. C. to 5.degree. C. below the melting point of the salt and continuing condensation at a temperature above that used for the precondensation until the desired degree of condensation is reached.

    摘要翻译: 通过在液体反应介质中使合适的二羧酸和二胺与添加催化有效的磷化合物反应来制备线性聚酰胺的方法,除去反应介质以得到固体盐,将固相的预冷凝 温度低于盐的熔点为140℃至5℃,并在高于用于预缩合直到达到所需缩合度的温度下继续冷凝。

    Continuous polyamide extraction process
    4.
    发明授权
    Continuous polyamide extraction process 有权
    连续聚酰胺萃取工艺

    公开(公告)号:US06320021B1

    公开(公告)日:2001-11-20

    申请号:US09554217

    申请日:2000-05-11

    IPC分类号: C08G6916

    CPC分类号: C08G69/16 C08G69/46

    摘要: A process for continuous extraction of polyamide particles in an essentially vertical extraction column using an aqueous extractant comprises using an extraction column that is divided into two zones and performing an extraction with a recirculating 15-40% strength by weight aqueous &egr;-caprolactam solution in the first zone and then with countercurrent water at a from 5 to 40° C. lower temperature in the second zone. The process provides for economical extraction of polyamides with a low level of monomers and oligomers.

    摘要翻译: 使用含水萃取剂在基本垂直的萃取塔中连续提取聚酰胺颗粒的方法包括使用分离成两个区域的提取塔,并用15-40重量%的重量百分比的ε-己内酰胺水溶液萃取 然后在5至40℃的逆流水中,在第二区域中的较低温度。 该方法提供了用低水平的单体和低聚物经济地提取聚酰胺。

    Continuous production of low molecular weight polyamides
    5.
    发明授权
    Continuous production of low molecular weight polyamides 失效
    连续生产低分子量聚酰胺

    公开(公告)号:US5674973A

    公开(公告)日:1997-10-07

    申请号:US578703

    申请日:1995-12-28

    CPC分类号: C08G69/16 C08G69/04

    摘要: A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220.degree. to 310.degree. C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215.degree. to 300.degree. C. without heat input.

    摘要翻译: PCT No.PCT / EP94 / 01998 Sec。 371日期1995年12月28日第 102(e)1995年12月28日PCT PCT 1994年6月20日PCT公布。 第WO95 / 01389号公报 日期1995年1月12日一种在聚酰胺形成条件下从至少一种内酰胺和水的混合物以及如果需要的话其它单体单元和/或常规添加剂和填料连续生产聚酰胺的方法,其中起始 材料在液相中在第一反应区中加热直到达到至少70%的转化率,并在另一个反应区进行绝热减压和进一步聚合,其中在第一反应区中为0.5-7重量%的水 ,温度升高到220℃至310℃,进行聚合直至达到至少85%的转化率,并且在第二反应区中,在进一步聚合进行进一步的聚合之后 在215〜300℃的范围内,无需热量输入。

    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。