公开(公告)号：EP1861443A1

公开(公告)日：2007-12-05

申请号：EP06725072.0

申请日：2006-03-15

申请人： BASF AKTIENGESELLSCHAFT

发明人： ASSMANN, Jens ,  ZÖLLNER, Knut ,  BLINZLER, Marko ,  URTEL, Melanie ,  SCHWITTAY, Claudius

IPC分类号： C08G2/10 ,  C08J11/02 ,  C08L59/00

CPC分类号： C08G2/28 ,  C08J11/02 ,  C08J2359/00 ,  Y02P20/582

摘要： The invention relates to a method for removing unreacted residual monomers from polyoxymethylenes. The inventive method is characterized by carrying out a degassing step in a strand-type degasifier.

摘要翻译： 本发明涉及从聚甲醛中除去未反应的残留单体的方法。 本发明的方法的特征在于在绳式脱气器中进行脱气步骤。

公开(公告)号：EP1819745A1

公开(公告)日：2007-08-22

申请号：EP05815897.3

申请日：2005-11-28

申请人： BASF AKTIENGESELLSCHAFT

发明人： ASSMANN, Jens ,  ZÖLLNER, Knut ,  HEINEMANN, Johannes ,  STÖCKELMANN, Elmar ,  STAMMER, Achim

IPC分类号： C08G2/10 ,  C08G2/08 ,  C08G2/22 ,  C08G2/30 ,  B01J19/24

CPC分类号： B01J19/0053 ,  B01J19/2415 ,  C08G2/08 ,  C08G2/10 ,  C08G2/22 ,  C08G2/30

摘要： The invention relates to a method for producing polyoxymethylenes by the polymerisation of monomers in the presence of cationically active initiators and optionally in the presence of chain transfer agents and by the subsequent deactivation and isolation of the polymers. Said method is characterised in that the polymerisation takes place in a tubular reactor comprising static mixing elements, said reactor having a mixing zone, a polymerisation zone and a deactivation zone and that the diameter of the tubular reactor in the mixing zone is

公开(公告)号：EP1861442A1

公开(公告)日：2007-12-05

申请号：EP06708776.7

申请日：2006-03-15

申请人： BASF AKTIENGESELLSCHAFT

发明人： URTEL, Melanie ,  SCHWITTAY, Claudius ,  ZÖLLNER, Knut ,  ASSMANN, Jens ,  BLINZLER, Marko

IPC分类号： C08G2/06

CPC分类号： C08G2/12 ,  C08G2/06

摘要： The invention relates to a method for producing polyoxymethylenes by cationic polymerization of the monomers a) in the presence of initiators b) and optionally in the presence of regulators c) and subsequent deactivation and removal of the polymer. The inventive method is characterized in that during the entire polymerization the overall amount of proton donors is less than 5.000 ppm.

摘要翻译： 本发明涉及一种通过单体a）在引发剂b）存在下并且任选在调节剂c）存在下阳离子聚合以及随后失活和除去聚合物来生产聚甲醛的方法。 本发明方法的特征在于，在整个聚合过程中，质子给体的总量小于5.000ppm。

公开(公告)号：EP1838783A1

公开(公告)日：2007-10-03

申请号：EP06707691.9

申请日：2006-01-10

申请人： BASF AKTIENGESELLSCHAFT

发明人： URTEL, Melanie ,  MÜLLER, Ulrich ,  SAUERER, Wolfgang ,  ASSMANN, Jens

IPC分类号： C08L59/00

CPC分类号： C08L59/00

摘要： The invention relates to a moulding compound, comprising between 10 and 99.999 wt. % of at least one polyoxymethylene as component (A1) and between 0.001 and 10 wt. %, (in relation to the weight of the component (A1) contained in the moulding compound), of at least one zeolitic material with a pore diameter ranging between 0.3 and 0.5 nm, determined according to the DIN 66134 and DIN 66135 standards. The size of the particles of zeolitic material ranges between 3 and 7 µm, determined according to the ISO 13320 standard. The invention also relates to moulded bodies that are produced from said moulding compound.

公开(公告)号：EP1756208A1

公开(公告)日：2007-02-28

申请号：EP05744786.4

申请日：2005-05-31

申请人： BASF Aktiengesellschaft

发明人： ASSMANN, Jens ,  DEMETER, Jürgen ,  DEININGER, Jürgen ,  SÖTJE, Oliver ,  KORY, Gad ,  LÖNING, Jan-Martin

IPC分类号： C08J11/06 ,  C08J11/02 ,  C08G69/16 ,  C08G69/28 ,  C01C1/02 ,  C02F1/04

CPC分类号： C08G69/04 ,  B01D3/14 ,  B01D5/0036 ,  C01C1/10 ,  C08G69/16 ,  C08G69/28 ,  C08J11/06 ,  Y02W30/701

摘要： The invention relates to a method for the distillative separation of ammonia and water from mixtures arising during the production of polyamides, said mixture containing a lactam and/or diamines and, optionally, an aminonitrile and/or dinitrile in addition to cyclopentanones as foreign substances. Said method consists of two steps: 1) the mixture is distilled at 11 - 35 bars, resulting in the production of water, ammonia and cyclopentanone as overhead products (K1), and water, lactam and/or diamines and, optionally, aminonitrile and/or dinitrile, as base products (S1), and 2) K1 is distilled at 11 - 35 bars, resulting in the production of ammonia and cyclopentanone as an overhead product, and water as a base product (S2).

公开(公告)号：EP1812486A1

公开(公告)日：2007-08-01

申请号：EP05801628.8

申请日：2005-11-05

申请人： BASF AKTIENGESELLSCHAFT

发明人： ASSMANN, Jens ,  ZÖLLNER, Knut

IPC分类号： C08G2/28 ,  C08G2/30 ,  C08K5/17

CPC分类号： C08G2/30 ,  C08G2/28 ,  C08K5/3435 ,  C08L59/02

摘要： The invention relates to a method for producing polyoxymethylenes by means of the polymerisation of monomers a) in the presence of cationically active initiators b) optionally in the presence of regulators c) and then by deactivation and removal from the reactor. Said method is characterised in that d) at least one basic compound comprising at least two amino functions with different reactivities in a molecule is used as a deactivator.