公开(公告)号：EP1861442B1

公开(公告)日：2008-12-03

申请号：EP06708776.7

申请日：2006-03-15

Applicant: BASF SE

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

IPC: C08G2/06

CPC classification number: C08G2/12 ,  C08G2/06

Abstract: 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.

公开(公告)号：EP1913045A1

公开(公告)日：2008-04-23

申请号：EP06777740.9

申请日：2006-07-13

Applicant: BASF SE

Inventor： BLINZLER, Marko ,  ZÖLLNER, Knut ,  SCHWITTAY, Claudius ,  ASSMANN, Jens

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

CPC classification number: C08L59/04 ,  C08G2/18

Abstract: The invention relates to a method for producing polyoxymethylene copolymers (POM) in the following manner: a) a reaction mixture containing suitable principal monomers and comonomers in addition to a polymerisation initiator and optionally a chain transfer agent is polymerised; b) a deactivator is added; and c) the residual monomers are removed. The invention is characterised in that at each stage of the method, the maximum quantity of compounds in the reaction mixture, said compounds having a melting point at 1013 hPa of below 60 °C, is 0.1 wt. %, not including the POM, monomers, comonomers, polymerisation initiators, deactivators and chain transfer agent.

Abstract translation: 本发明涉及一种以下列方式生产聚甲醛共聚物（POM）的方法：a）除了聚合引发剂和任选的链转移剂之外还包含合适的主要单体和共聚单体的反应混合物被聚合; b）添加去激活剂; 和c）除去残余单体。 本发明的特征在于，在该方法的每个阶段，反应混合物中化合物的最大量，所述化合物在1013hPa下的熔点低于60℃，为0.1wt。 ％，不包括POM，单体，共聚单体，聚合引发剂，钝化剂和链转移剂。

公开(公告)号：EP1861443B1

公开(公告)日：2008-08-20

申请号：EP06725072.0

申请日：2006-03-15

Applicant: BASF SE

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

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

CPC classification number: C08G2/28 ,  C08J11/02 ,  C08J2359/00 ,  Y02P20/582

Abstract: 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.

公开(公告)号：EP1915404A1

公开(公告)日：2008-04-30

申请号：EP06764287.6

申请日：2006-08-01

Applicant: BASF SE

Inventor： LOTH, Wolfgang ,  SEIDL, Volker ,  BRUHNS, Stefan ,  HUNGENBERG, Klaus-Dieter ,  KOCH, Jürgen ,  SCHADE, Christian ,  SCHWITTAY, Claudius

IPC: C08F12/08 ,  C08F2/00

CPC classification number: C08F112/08 ,  C08F2/00

Abstract: The invention concerns a process for continuous production of styrene polymers by anionic spray polymerization characterized in that i) styrene and the initiator solution are mixed in a dynamic or static mixer and subsequently spray dispensed, ii) the droplets formed transition from the liquid monomeric state into the molten polymeric state during their free fall in the spray tower, iii) the melt droplets are collected as a melt at the foot of the tower, the melt having a monomer content of below 1%, preferably below 0.1% (

公开(公告)号：EP2049584B1

公开(公告)日：2010-07-14

申请号：EP07787685.2

申请日：2007-07-18

Applicant: BASF SE

Inventor： BRUCHMANN, Bernd ,  ASSMANN, Jens ,  SCHWITTAY, Claudius ,  SCHÄFER, Harald

IPC: C08G64/38

CPC classification number: C08G64/0208 ,  C08G64/0216 ,  C08G64/0225 ,  C08G64/302 ,  C08G64/305 ,  C08G65/2603 ,  C09D11/102 ,  C09D169/00

公开(公告)号：EP2049584A1

公开(公告)日：2009-04-22

申请号：EP07787685.2

申请日：2007-07-18

Applicant: BASF SE

Inventor： BRUCHMANN, Bernd ,  ASSMANN, Jens ,  SCHWITTAY, Claudius ,  SCHÄFER, Harald

IPC: C08G64/38

CPC classification number: C08G64/0208 ,  C08G64/0216 ,  C08G64/0225 ,  C08G64/302 ,  C08G64/305 ,  C08G65/2603 ,  C09D11/102 ,  C09D169/00

Abstract: Hyperbranched polycarbonates with stabilizing groups, produced by the reaction of (a) at least one compound with at least three alcoholic hydroxyl groups per molecule with (b) at least one reagent of the general formula (I), (c) at least one reagent of the general formula X3-(A1)m-X4, wherein the variables are defined as follows: X1, X2 equal or different and chosen of halogen, C1-C10-alkoxy, C6-C10- aryloxy and O-C(=O)-halogen, X3 being a functional group, chosen of OH, SH, NH2, NH-C1-C4-AIkVl, isocyanat, epoxy, COOH, COOR12, C(=O)-O-C(=O), C(=O)-CI, R12 C1C4-AIkyl or C6-C10-aryl, A1 a spacer or a single bond, m is zero or one, X4 a group chosen from phenol groups, benzophenones, aromatic armines and nitrogen containing heterocyles, substituted or nonsubstituted respectively.

公开(公告)号：EP1913045B1

公开(公告)日：2008-12-03

申请号：EP06777740.9

申请日：2006-07-13

Applicant: BASF SE

Inventor： BLINZLER, Marko ,  ZÖLLNER, Knut ,  SCHWITTAY, Claudius ,  ASSMANN, Jens

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

CPC classification number: C08L59/04 ,  C08G2/18

Abstract: The invention relates to a method for producing polyoxymethylene copolymers (POM) in the following manner: a) a reaction mixture containing suitable principal monomers and comonomers in addition to a polymerisation initiator and optionally a chain transfer agent is polymerised; b) a deactivator is added; and c) the residual monomers are removed. The invention is characterised in that at each stage of the method, the maximum quantity of compounds in the reaction mixture, said compounds having a melting point at 1013 hPa of below 60 °C, is 0.1 wt. %, not including the POM, monomers, comonomers, polymerisation initiators, deactivators and chain transfer agent.