中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

264 records (took 0.024 seconds)

    PARTIAL AROMATIC COPOLYAMIDE REDUCED IN TRIAMINE CONTENT
    3.
    发明专利
    PARTIAL AROMATIC COPOLYAMIDE REDUCED IN TRIAMINE CONTENT 失效

    公开(公告)号：JPH10168183A

    公开(公告)日：1998-06-23

    申请号：JP26211197

    申请日：1997-09-26

    Applicant: BASF AG

    Inventor： REIMANN HORST ,  PIPPER GUNTER ,  WEISS HANS-PETER ,  PLACHETTA CHRISTOPH ,  KOCH ECKHARD M

    IPC: C08J5/18 ,  C08G69/00 ,  C08G69/02 ,  C08G69/26 ,  C08G69/36

    Abstract: PROBLEM TO BE SOLVED: To obtain a partial aromatic copolyamide continuously producible by a simple method without causing a problem by cross linking at all, having improved processing performance, heat distortion resistance and excellent mechanical characteristics. SOLUTION: This copolyamide comprises (A) a unit derived from terephthalic acid and hexamethylenediamine, (B) a unit derived from ε k-caprolactam and (C) a unit derived from adipic acid and hexamethylenediamine as essential constitutent components in which the constituent components A, B and C exist in the interior of the pentagon formed by vertexes X1 to X5 in a three component diagram. The vertexes are as follows. X1 : the unit A 40wt.% and the unit C 60wt.%. X2 : the unit A 60wt.% and the unit C 40wt.%. X3 : the unit A 80wt.%, the unit B 5wt.% and the unit C 15wt.%. X4 : the unit A 80wt.%, the unit B 20wt.%. X5 is the unit A 50wt.% and the unit B 50wt.%.

    PARTIALLY AROMATIC COPOLYAMIDE HAVING DECREASED TRIAMINE CONTENT
    4.
    发明专利
    PARTIALLY AROMATIC COPOLYAMIDE HAVING DECREASED TRIAMINE CONTENT 失效

    公开(公告)号：JPH10152555A

    公开(公告)日：1998-06-09

    申请号：JP26211097

    申请日：1997-09-26

    Applicant: BASF AG

    Inventor： REIMANN HORST ,  PIPPER GUNTER ,  WEISS HANS-PETER ,  PLACHETTA CHRISTOPH ,  KOCH ECKHARD M

    IPC: C08J5/18 ,  C08G69/00 ,  C08G69/02 ,  C08G69/26 ,  C08G69/36

    Abstract: PROBLEM TO BE SOLVED: To provide a partially aromatic copolyamide continuously producible by a simple process without causing any problem by crosslinking and having improved processability and thermal deformation resistance and excellent mechanical properties. SOLUTION: This partially aromatic copolyamide has a relative viscosity of 2.2-5.0 and contains (A) 40-90wt.% of a unit derived from terephthalic acid and hexamethylenediamine, (B) 0-50wt.% of a unit derived from ε-caprolactam and (C) 0-60wt.% of a unit derived from adipic acid and hexamethylenediamine as essential constituent components. The component B and/or C accounts for >=10wt.% of the total units and the copolyamide has a triamine content of

    PROCESS FOR PRODUCING POLYAMIDES FROM AMINONITRILES
    5.
    发明申请
    PROCESS FOR PRODUCING POLYAMIDES FROM AMINONITRILES 审中-公开
    一种从氨基腈PRODUCING聚酰胺

    公开(公告)号：WO9808889A2

    公开(公告)日：1998-03-05

    申请号：PCT/EP9704640

    申请日：1997-08-26

    Applicant: BASF AG ,  WEISS ROBERT ,  KRAUSS DIETER ,  KELLER DIETER ,  PIPPER GUNTER ,  HARDER WOLFGANG ,  LUDWIG ALFONS ,  MOHRSCHLADT RALF

    Inventor： WEISS ROBERT ,  KRAUSS DIETER ,  KELLER DIETER ,  PIPPER GUNTER ,  HARDER WOLFGANG ,  LUDWIG ALFONS ,  MOHRSCHLADT RALF

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/28 ,  C08G69/36

    CPC classification number: C08G69/04 ,  C08G69/08 ,  C08G69/28 ,  C08G69/36

    Abstract: A process for producing a polyamide by reacting at least one aminonitrile with water has the following steps: (1) at least one aminonitrile is reacted with water at a temperature from 100 to 360 DEG C and pressure from 0.1 to 35.x 10 Pa, yielding a reaction mixture; (2) the reaction mixture is further reacted at a temperature from 150 to 400 DEG C and pressure lower than the pressure in step 1. The temperature and pressure are selected to yield a first gaseous phase and a first liquid or solid phase or a mixture of a first solid and a first liquid phase. The first gaseous phase is separated from the first liquid or solid phase or the mixture of a first liquid and a first solid phase is separated; and (3) the first liquid or solid phase or the mixture of a first liquid and first solid phase is mixed with a water-containing gaseous or liquid phase at a temperature from 150 to 360 DEG C and pressure from 0.1 to 30 x 10 Pa, yielding a product mixture. Also disclosed are other embodiments of this process and the thus produced polyamides.

    Abstract translation: 一种用于通过至少一个氨基腈与水反应，包括下列步骤制备聚酰胺过程：（1）在100至360摄氏度的温度和0.1〜35×10的压力<至少一个氨基腈与水反应 6> Pa至获得得到的反应混合物，（2）进一步在150〜400℃和压力是比在步骤1中的压力更低的温度下的反应混合物反应，所述温度和压力被选择为使得 该第一气相和第一液体或第一固相或第一固体和第一液相的混合物获得，并从所述第一液体或第一固相或第一液体和第1固相的混合物中的第一气体相分离出 是，（3）将第一液体或第一固相或第一液体和第1固相的与气态或混合物 含有液体相包含水，在150〜360℃的温度和0.1〜30×10 <6> Pa的压力以获得产物混合物中获得，以及这样的方法的其它实施例中，将如此制备的 聚酰胺本身。

    CONTINUOUS POLYAMIDE EXTRACTION PROCESS
    6.
    发明申请
    CONTINUOUS POLYAMIDE EXTRACTION PROCESS 审中-公开
    连续提取聚酰胺的方法

    公开(公告)号：WO9926996A3

    公开(公告)日：1999-09-02

    申请号：PCT/EP9807575

    申请日：1998-11-24

    Applicant: BASF AG ,  ERBES JOERG ,  LUDWIG ALFONS ,  PIPPER GUNTER

    Inventor： ERBES JOERG ,  LUDWIG ALFONS ,  PIPPER GUNTER

    IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

    CPC classification number: C08G69/46 ,  B01D11/0242 ,  C08G69/04 ,  C08G69/16

    Abstract: A process is disclosed for continuously extracting polyamide particles from a circulating extraction solution in a vertical extraction column subdivided into two zones. The polyamide is treated in the first zone with an aqueous epsilon -caprolactam solution with 40-95 wt. % epsilon -caprolactam as extraction agent at 100 to 140 DEG C, then subsequently treated with water in the second zone. Finally, the caprolactam can be extracted in a manner known per se. The process allows polyamide with a low dimer content to be economically produced.

    Abstract translation: 本发明涉及一种用于聚酰胺粒子的连续萃取的方法与引导在循环萃取溶液在垂直，分成两个区萃取柱，其中，所述聚酰胺的ε-在与含水的ε--Caprolactamlösung与40中的第一区，以95重量％的己内酰胺 作为萃取剂在100至140℃下处理，然后在第二区域中用水进行后处理。 随后，可以以常规方式提取己内酰胺。 该方法可以经济地生产低二聚体含量的聚酰胺。

    METHOD AND DEVICE FOR DRYING AND SUBSEQUENT CONDENSATION OF POLYCONDENSATE IN SOLID FORM
    9.
    发明专利
    METHOD AND DEVICE FOR DRYING AND SUBSEQUENT CONDENSATION OF POLYCONDENSATE IN SOLID FORM 未知

    公开(公告)号：BG64353B1

    公开(公告)日：2004-11-30

    申请号：BG10674402

    申请日：2002-05-28

    Applicant: BASF AG

    Inventor： LUDWIG ALFONS ,  PILLE RAGNHILD ,  PIPPER GUNTER

    IPC: B29B13/06 ,  F26B17/12 ,  F26B21/14

    Abstract: The method and the device are used for drying and subsequent condensation of polycondesate granulate, in particular for polyester or polyamide granulate, preferably of polyamide 6-granulate. By the method, in one of more devices, the polycondensate is dried and heated in the range between the minimum temperature of 105 to 120 degrees C and maximum temperature of 2 degrees C below the temperature of its softening, is treated in a retaining device and is cooled in a cooling device. The installation includes at least one device (1) for drying and thermal treatment of granulate in an inert gas stream. It has a cuboidal base body (2) with an inlet hole (3) for the granulate in the upper part, and an outlet hole (4) in the lower part. The device has an inlet hole (5) on a side surface, and an outlet hole (6) on the opposite side surface of the cuboidal base body (2) for the inert gas. A distribution and back retention device (7, 8) are found in the zone of holes (5 and 6) for the inert gas stream which substantially extend over the total vertical cross-section of base body (2).

    THE CONTINUOUS PRODUCTION OF LOW MOLECULAR WEIGHT POLYAMIDES
    10.
    发明专利
    THE CONTINUOUS PRODUCTION OF LOW MOLECULAR WEIGHT POLYAMIDES 未知

    公开(公告)号：CA2166314C

    公开(公告)日：2004-05-18

    申请号：CA2166314

    申请日：1994-06-20

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  KLEINKE ANDREAS ,  HILDENBRAND PETER

    IPC: C08G69/14 ,  B01J19/28 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

    Abstract: A process is disclosed for continously preparing polyamides from a mixture o f at least one lactam and water, as well as if required other monomer units and/or usual additives and fillers in polyamide-forming conditions. The mixture of initial substances is heated in the liquid phase in a first reaction zone until a conversion rate of at least 70 % is reached, then is adiabatically expanded and further polymerised in another fraction zone. In the first reaction zone, 0.5 to 7% by weight water art added to the mixture, the mixture is heated up to a temperature range from 220 to 310 .degree.C and polymerised until a conversi on rate of at least 85 % isreached. In the second reaction zone, after the mixture is expanded, it is further polymerised at temperatures in a range from 215 to 300 .degree.C without further heating.

Patent Agency Ranking