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公开(公告)号：PL1674497T3
公开(公告)日：2009-01-30
申请号：PL05110112
申请日：2005-10-28
Applicant: EVONIK DEGUSSA GMBH
Inventor： MONSHEIMER SYLVIA , GREBE MAIK , RICHTER ALEXANDER , KREIDLER PATRICK
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公开(公告)号：AT412022T
公开(公告)日：2008-11-15
申请号：AT07106925
申请日：2007-04-25
Applicant: EVONIK DEGUSSA GMBH
Inventor： RICHTER ALEXANDER , SCHIEMANN VERA , GUENZEL BERND , JILG BORIS , UHLICH WILFRIED
Abstract: Preparation of polyarylene ether ketones (A), comprises reacting an aromatic dihalo compound with a bisphenol and/or halogen phenols in the presence of alkali and/or alkaline earth carbonate in a high boiling aprotic solvent, to obtain the polyarylene etherketone; wet crushing the hardened reaction mixture in present of water; washing the mixture with an organic solvent and water; and drying the washed product, where the reaction mixture with a moisture content of less than 1 wt.% is fed for two-stage washing.
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公开(公告)号：DE102005033379A1
公开(公告)日：2007-01-18
申请号：DE102005033379
申请日：2005-07-16
Applicant: DEGUSSA
Inventor： MONSHEIMER SYLVIA , RICHTER ALEXANDER
Abstract: The method involves use of a powder which contains cyclic oligomers. The selective area of the powder layer can be melted by insertion of the electromagnetic energy. The powder contains around 50 percent by weight of the cyclic oligomers. An independent claim is also included for the mold.
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公开(公告)号：NO20056075L
公开(公告)日：2006-06-22
申请号：NO20056075
申请日：2005-12-20
Applicant: DEGUSSA
Inventor： GREBE MAIK , MONSHEIMER SYLVIA , RICHTER ALEXANDER , KREIDLER PATRICK
IPC: C08L71/00
Abstract: Polymer powder (I), useful in layerwise working procedure, where selective ranges of the respective powder layer is melted by electromagnetic energy, comprises polyarylene ether ketone (PAEK) powder and has a BET surface of 1-60 m 2>/g. Independent claims are also included for the preparation of (I); #a method for preparing molded articles, by a layerwise working procedure, comprising melting the selective ranges of the respective polymer powder layer by adding electromagnetic energy; #molded articles, prepared by the method, comprising a polymer of polyarylene ether ketone.
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公开(公告)号：DE102004062762A1
公开(公告)日：2006-06-22
申请号：DE102004062762
申请日：2004-12-21
Applicant: DEGUSSA
Inventor： RICHTER ALEXANDER , KREIDLER PATRICK , RENNERS HOLGER , CHRISTOPH WOLFGANG , TEMME HEINRICH , BIERHAUS CHRISTIAN
Abstract: A milling process for the preparation of fine-particled polyarylene ether ketone comprises milling a porous polyarylene ether ketone having a BET surface area of more than 1 m2/g.
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Patent Agency Ranking
公开(公告)号：BRPI0901433A2
公开(公告)日：2010-01-26
申请号：BRPI0901433
申请日：2009-05-18
Applicant: EVONIK DEGUSSA GMBH
Inventor： RICHTER ALEXANDER , LOHKOMPER HANS-GUENTHER
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公开(公告)号：BRPI0519809A2
公开(公告)日：2009-03-17
申请号：BRPI0519809
申请日：2005-11-18
Applicant: DEGUSSA
Inventor： RICHTER ALEXANDER , GUENZEL BERND , BIERHAUS CHRISTIAN , KREIDLER PATRICK , KRENZ MICHAEL , NORDHOFF STEFAN
Abstract: A process for preparing a polyarylene ether ketone comprises the following process steps: a) reaction of an aromatic dihalogen compound with a bisphenol and/or a halophenol in the presence of alkali metal and/or alkaline earth metal carbonate or hydrogencarbonate in a high-boiling aprotic solvent to give a polyarylene ether ketone, b) wet comminution and simultaneous preextraction of the solidified reaction mixture, c) extraction and filtration of the wet-comminuted product in a pressure suction filter and d) drying of the extracted product. This combination enables improved workup of the reaction mixture.
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公开(公告)号：AT398644T
公开(公告)日：2008-07-15
申请号：AT05817403
申请日：2005-11-18
Applicant: EVONIK DEGUSSA GMBH
Inventor： RICHTER ALEXANDER , GUENZEL BERND , BIERHAUS CHRISTIAN , KREIDLER PATRICK , NORDHOFF STEFAN , KRENZ MICHAEL
Abstract: A process for preparing a polyarylene ether ketone comprises the following process steps: a) reaction of an aromatic dihalogen compound with a bisphenol and/or a halophenol in the presence of alkali metal and/or alkaline earth metal carbonate or hydrogencarbonate in a high-boiling aprotic solvent to give a polyarylene ether ketone, b) wet comminution and simultaneous preextraction of the solidified reaction mixture, c) extraction and filtration of the wet-comminuted product in a pressure suction filter and d) drying of the extracted product. This combination enables improved workup of the reaction mixture.
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公开(公告)号：DE102006022550A1
公开(公告)日：2007-11-22
申请号：DE102006022550
申请日：2006-05-15
Applicant: DEGUSSA
Inventor： RICHTER ALEXANDER , SCHIEMANN VERA , MAUL JUERGEN , GUENZEL BERND
IPC: C08G65/40
Abstract: A polyarylene ether ketone is prepared by adding an aromatic dihalogen compound and a bisphenol to a reactor and conducting a polycondensation reaction in the presence of one or more of an alkali metal carbonate and an alkaline earth metal carbonate in a high-boiling solvent; and again adding, during the course of the polycondensation, at least one of a bisphenol and an aromatic dihalogen compound in an amount to achieve a target molar mass of the polyarylene ether ketone.
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公开(公告)号：NZ544275A
公开(公告)日：2007-09-28
申请号：NZ54427505
申请日：2005-12-20
Applicant: DEGUSSA
Inventor： MONSHEIMER SYLVIA , GREBE MAIK , RICHTER ALEXANDER , KREIDLER PATRICK
Abstract: Disclosed is the use of a porous polyarylene ether ketone (PAEK) polymer powder with a BET surface area of from 1 to 60 metre squared per gram in a layer-by-layer process by which regions of the respective powder layer are selectively melted via introduction of electromagnetic energy. Mouldings constructed using this polymer powder and process, when compared with mouldings produced by conventional laser-sintering processes, exhibit marked advantages in relation to their heat resistance and mechanical properties.
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