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公开(公告)号:DE502006002275D1
公开(公告)日:2009-01-15
申请号:DE502006002275
申请日:2006-07-13
Applicant: BASF SE
Inventor: BLINZLER MARKO , ZOELLNER KNUT , SCHWITTAY CLAUDIUS , ASSMANN JENS
Abstract: Process for preparing polyoxymethylene copolymers (POMs) by a) polymerizing a reaction mixture comprising suitable main monomers and comonomers and also a polymerization initiator and, if appropriate, a regulator, b) adding a deactivator and c) removing the residual monomers, wherein the amount of compounds whose melting point at 1013 hPa is below 60° C. present in the reaction mixture at any point in time during the process is not more than 0.1% by weight, with the POM, the monomers, comonomers, polymerization initiators, deactivators and regulators not being included in the calculation.
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公开(公告)号:BRPI0715090A2
公开(公告)日:2013-03-26
申请号:BRPI0715090
申请日:2007-07-17
Applicant: BASF SE
Inventor: SCHWITTAY CLAUDIUS , BRUCHMANN BERND , ASSMANN JENS
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公开(公告)号:PL1861443T3
公开(公告)日:2009-01-30
申请号:PL06725072
申请日:2006-03-15
Applicant: BASF SE
Inventor: ASSMANN JENS , ZÖLLNER KNUT , BLINZLER MARKO , URTEL MELANIE , SCHWITTAY CLAUDIUS
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公开(公告)号:BRPI0722423A2
公开(公告)日:2013-12-17
申请号:BRPI0722423
申请日:2007-07-18
Applicant: BASF SE
Inventor: BRUCHMANN BERND , SCHWITTAY CLAUDIUS , SCHAEFER HARALD , ASSMANN JENS
IPC: C08G64/38
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5.
公开(公告)号:ES2347715T3
公开(公告)日:2010-11-03
申请号:ES07787685
申请日:2007-07-18
Applicant: BASF SE
Inventor: BRUCHMANN BERND , ASSMANN JENS , SCHWITTAY CLAUDIUS , SCHAFER HARALD
IPC: C08G64/38
Abstract: policarbonatos hiperramificados con grupos que actúan como estabilizadores, preparados mediante la conversión de (a) al menos, un compuesto con, al menos, tres grupos hidroxilos alcohólicos por molécula con (b) al menos, un reactivo de la fórmula general I (c) y, al menos, un reactivo de la fórmula general X3-A1-X4, cuyas variables se definen del siguiente modo: **(Ver fórmula)** 10 X1, X2 son iguales o diferentes y son seleccionados entre halógeno, alcoxi C1C10, ariloxi C6- C10 y halógeno O-C(=O), X3 es un grupo funcional seleccionado entre OH, SH, NH2, alquilo NH-C1C4-, isocianato, epoxi, COOH, COOR12, C(=O)-O-C(=O), C(=O)-Cl, R12 es alquilo C1-C4 o arilo C6-C10, A1 es un espaciador seleccionado entre para-fenileno, meta-fenileno, y alquilo C1-C100, ramificado o no ramificado, donde, eventualmente, uno a 6 grupos CH2 no adyacentes pueden ser reemplazados respectivamente por un átomo de azufre, eventualmente oxidado, o un átomo de oxígeno, X4 es un grupo seleccionado entre benzofenonas, aminas aromáticas y heterociclos que contienen nitrógeno, en cada caso sustituido o no sustituido y grupos fenoles con impedimento estérico.
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公开(公告)号:DE502006002258D1
公开(公告)日:2009-01-15
申请号:DE502006002258
申请日:2006-03-15
Applicant: BASF SE
Inventor: URTEL MELANIE , SCHWITTAY CLAUDIUS , ZOELLNER KNUT , ASSMANN JENS , BLINZLER MARKO
IPC: C08G2/06
Abstract: A process for the preparation of polyoxymethylenes by cationic polymerization of the monomers a) in the presence of initiators b) and, if appropriate, in the presence of regulators c) and subsequent deactivation and isolation of the polymer, wherein the total amount of proton donors is less than 5000 ppm in the entire polymerization.
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公开(公告)号:BRPI0715474A2
公开(公告)日:2012-02-28
申请号:BRPI0715474
申请日:2007-07-18
Applicant: BASF SE
Inventor: BRUCHMANN BERND , ASSMANN JENS , SCHWITTAY CLAUDIUS , SCHOFER HARALD
IPC: C08G64/38
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公开(公告)号:DE502007004412D1
公开(公告)日:2010-08-26
申请号:DE502007004412
申请日:2007-07-18
Applicant: BASF SE
Inventor: BRUCHMANN BERND , ASSMANN JENS , SCHWITTAY CLAUDIUS , SCHAEFER HARALD
IPC: C08G64/38
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公开(公告)号:AT416209T
公开(公告)日:2008-12-15
申请号:AT06777740
申请日:2006-07-13
Applicant: BASF SE
Inventor: BLINZLER MARKO , ZOELLNER KNUT , SCHWITTAY CLAUDIUS , ASSMANN JENS
Abstract: Process for preparing polyoxymethylene copolymers (POMs) by a) polymerizing a reaction mixture comprising suitable main monomers and comonomers and also a polymerization initiator and, if appropriate, a regulator, b) adding a deactivator and c) removing the residual monomers, wherein the amount of compounds whose melting point at 1013 hPa is below 60° C. present in the reaction mixture at any point in time during the process is not more than 0.1% by weight, with the POM, the monomers, comonomers, polymerization initiators, deactivators and regulators not being included in the calculation.
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公开(公告)号:DE502006001394D1
公开(公告)日:2008-10-02
申请号:DE502006001394
申请日:2006-03-15
Applicant: BASF SE
Inventor: ASSMANN JENS , ZOELLNER KNUT , BLINZLER MARKO , URTEL MELANIE , SCHWITTAY CLAUDIUS
Abstract: Process for removing unconverted residual monomers from polyoxymethylenes, wherein a devolatilization step is carried out in an extrudate devolatilizer.
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