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公开(公告)号:DE10335959A1
公开(公告)日:2005-02-24
申请号:DE10335959
申请日:2003-08-04
Applicant: BASF AG
Inventor: HEINEMANN JOHANNES , DAMES BURKHARDT
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公开(公告)号:DE50000888D1
公开(公告)日:2003-01-16
申请号:DE50000888
申请日:2000-06-07
Applicant: BASF AG
Inventor: MUELHAUPT ROLF , HEINEMANN JOHANNES , BAUMERT MARTIN , QUEISSER JOACHIM , GEPRAEGS MICHAEL
IPC: C08F4/80 , C08F210/02 , C08F255/00 , C08F255/02 , C08F265/00 , C08F271/00 , C08F283/00 , C08F290/06 , C08F291/00 , C08L51/06
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公开(公告)号:DE502005001905D1
公开(公告)日:2007-12-20
申请号:DE502005001905
申请日:2005-05-17
Applicant: BASF AG
Inventor: SCHWITTAY CLAUDIUS , STOECKELMANN ELMAR , HEINEMANN JOHANNES , ZOELLNER KNUT , STAMMER ACHIM
Abstract: A process for removing residual monomers from polyoxymethylene homo- or copolymers, comprising the following process steps: a) the residual monomers are removed in gaseous form as vapors from the polymer in a devolatilization apparatus, b) the residual monomer vapors are removed through a vapor pipe, c) the residual monomers are condensed from the vapors in a condensation apparatus at from 1.09 to 102.4 bar and from 102 to 230° C., the temperature not falling below 102° C. at any point of the condensation apparatus, and those surfaces of the condensation apparatus which come into contact with the vapors being coated with a liquid film of condensed residual monomers.
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公开(公告)号:DE10340779A1
公开(公告)日:2005-03-24
申请号:DE10340779
申请日:2003-09-02
Applicant: BASF AG
Inventor: DAMES BURKHARDT , HEINEMANN JOHANNES
Abstract: Ketones are used as co-catalysts in a method for the production of polyoxymethylenes (POM) by polymerisation of monomers (a) in presence of catalytic initiators (b), co-catalysts (c) and optionally regulators (d), followed by isolation of the polymer (optionally after deactivation).
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公开(公告)号:DE10302716A1
公开(公告)日:2004-08-05
申请号:DE10302716
申请日:2003-01-23
Applicant: BASF AG
Inventor: STOECKELMANN ELMAR , DAMES BURKHARDT , HEINEMANN JOHANNES
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公开(公告)号:ES2190416T3
公开(公告)日:2003-08-01
申请号:ES00938772
申请日:2000-06-07
Applicant: BASF AG
Inventor: MULHAUPT ROLF , HEINEMANN JOHANNES , BAUMERT MARTIN , QUEISSER JOACHIM , GEPRAGS MICHAEL
IPC: C08F4/80 , C08F210/02 , C08F255/00 , C08F255/02 , C08F265/00 , C08F271/00 , C08F283/00 , C08F290/06 , C08F291/00 , C08L51/06
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公开(公告)号:AT377611T
公开(公告)日:2007-11-15
申请号:AT05750544
申请日:2005-05-17
Applicant: BASF AG
Inventor: SCHWITTAY CLAUDIUS , STOECKELMANN ELMAR , HEINEMANN JOHANNES , ZOELLNER KNUT , STAMMER ACHIM
Abstract: A process for removing residual monomers from polyoxymethylene homo- or copolymers, comprising the following process steps: a) the residual monomers are removed in gaseous form as vapors from the polymer in a devolatilization apparatus, b) the residual monomer vapors are removed through a vapor pipe, c) the residual monomers are condensed from the vapors in a condensation apparatus at from 1.09 to 102.4 bar and from 102 to 230° C., the temperature not falling below 102° C. at any point of the condensation apparatus, and those surfaces of the condensation apparatus which come into contact with the vapors being coated with a liquid film of condensed residual monomers.
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公开(公告)号:AT334169T
公开(公告)日:2006-08-15
申请号:AT04729360
申请日:2004-04-24
Applicant: BASF AG
Inventor: SAUERER WOLFGANG , HEINEMANN JOHANNES
Abstract: Thermoplastic molding compositions, comprising A) from 15 to 99.94% by weight of a polyoxymethylene homo- or copolymer B) from 0.05 to 10% by weight of a nonpolar polypropylene wax, C) from 0.01 to 5% by weight of at least one ester or amide of saturated or unsaturated aliphatic carboxylic acids having from 10 to 40 carbon atoms with saturated aliphatic alcohols or amines having from 2 to 40 carbon atoms, D) from 0 to 80% by weight of other additives, where the total of the percentages by weight of components A) to D) is always 100%.
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公开(公告)号:DE10340781A1
公开(公告)日:2005-03-17
申请号:DE10340781
申请日:2003-09-02
Applicant: BASF AG
Inventor: DAMES BURKHARDT , HEINEMANN JOHANNES
Abstract: Esters are used as co-catalysts in a method for the production of polyoxymethylenes (POM) by polymerisation of monomers (a) in presence of catalytic initiators (b), co-catalysts (c) and optionally regulators (d), followed by isolation of the polymer (optionally after deactivation).
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公开(公告)号:DE10312318A1
公开(公告)日:2004-09-30
申请号:DE10312318
申请日:2003-03-19
Applicant: BASF AG
Inventor: HEINEMANN JOHANNES , EBERLE WOLFGANG , WEINKOETZ STEPHAN , SCHERR GUENTER , MARTIN-PORTUGUES MARTA
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