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公开(公告)号：US10889689B2
公开(公告)日：2021-01-12
申请号：US16086671
申请日：2017-03-14
申请人： BASF SE
摘要： The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.
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公开(公告)号：US09045598B2
公开(公告)日：2015-06-02
申请号：US14016504
申请日：2013-09-03
申请人： BASF SE
摘要： The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s−1.
摘要翻译： 在不存在溶剂和稀释剂的情况下，在熔融物中，在碱金属碳酸盐存在下，通过二氯二苯基砜组分与双酚组分作为单体的反应制备芳族聚醚砜的方法包括在混合捏合机中进行反应，该混合捏合机与 剪切速率在5至500s -1范围内。
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公开(公告)号：US11697716B2
公开(公告)日：2023-07-11
申请号：US16482490
申请日：2018-01-25
申请人： BASF SE
IPC分类号： C08J3/14 , B33Y40/00 , B33Y70/00 , B29C64/314 , C08J3/20 , B33Y10/00 , B29C64/153 , B29K77/00
CPC分类号： C08J3/14 , B29C64/314 , B33Y40/00 , B33Y70/00 , C08J3/203 , B29C64/153 , B29K2077/00 , B33Y10/00 , C08J2377/02
摘要： The present invention relates to a process for producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P) and at least one additive (A). The semicrystalline polyamide (P) and the at least one additive (A) are initially compounded with one another in an extruder and subsequently introduced into a solvent (SV) in which the at least one semicrystalline polyamide (P) then crystallizes to obtain the polyamide powder (PP). The present invention further relates to the thus obtainable polyamide powder (PP) and to the use of the polyamide powder (PP) as sintering powder (SP) and also to a process for producing a shaped body by selective laser sintering of a polyamide powder (PP).
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公开(公告)号：US09809686B2
公开(公告)日：2017-11-07
申请号：US14904614
申请日：2014-07-16
申请人： BASF SE
发明人： Joerg Erbes , Stefan Muessig , Tobias Kortekamp , Marco Krueger , Markus Steffen , Angela Ulzhoefer , Cecile Schneider , Alexandra Wiedemann , Simon Gramlich
CPC分类号： C08J3/14 , B29C47/0011 , B29K2081/06 , C08G65/46 , C08G75/23 , C08J3/12 , C08J2381/06 , C08J2381/08
摘要： The invention relates to a process for producing polyarylene ether beads from a polyarylene ether solution, comprising the steps of i) dividing the polyarylene ether solution in a division apparatus which is made to vibrate with a frequency of 10 to 1400 Hz to obtain droplets, ii) transferring the droplets into a precipitation bath to form polyarylene ether beads in the precipitation bath which (A) comprises at least one aprotic solvent (component (1)) and at least one protic solvent (component (2)), (B) has a temperature of 0° C. to Tc, where the critical temperature Tc in [° C.] can be determined by the numerical equation Tc=(77−c)/0.58 in which c is the concentration of component (1) in the precipitation bath in [% by weight] and (C) has component (1) in concentrations of 5% by weight to cc, where the critical concentration cc in [% by weight] can be determined by the numerical equation cc=77−0.58*T in which T is the temperature in the precipitation bath in [° C.], where the percentages by weight are each based on the sum of the percentages by weight of component (1) and of component (2) in the precipitation bath.
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公开(公告)号：US09534083B2
公开(公告)日：2017-01-03
申请号：US14016520
申请日：2013-09-03
申请人： BASF SE
摘要： In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least.
摘要翻译： 在通过可缩聚聚酰胺形成单体和/或低聚物在包含它们的反应混合物（其可以是含水但不含有机溶剂）中缩聚制备聚酰胺的方法中，在搅拌反应器中在第一 步骤在液相中，并且在相同反应器中的相变期间发生在固态的随后的第二步骤中，其中反应器中的温度低于第二步中聚酰胺的熔点 最小。
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公开(公告)号：US20140066588A1
公开(公告)日：2014-03-06
申请号：US14016520
申请日：2013-09-03
申请人： BASF SE
摘要： In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least.
摘要翻译： 在通过可缩聚聚酰胺形成单体和/或低聚物在包含它们的反应混合物（其可以是含水但不含有机溶剂）中缩聚制备聚酰胺的方法中，在搅拌反应器中在第一 步骤在液相中，并且在相同反应器中的相变期间发生在固态的随后的第二步骤中，其中反应器中的温度低于第二步中聚酰胺的熔点 最小。
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公开(公告)号：US11802191B2
公开(公告)日：2023-10-31
申请号：US15999522
申请日：2017-02-16
申请人： BASF SE
IPC分类号： C08K3/34 , B33Y10/00 , B29C64/153 , B33Y70/10 , C08G69/14 , C08L77/02 , C08L77/06 , B29K77/00 , B29K309/00
CPC分类号： C08K3/346 , B29C64/153 , B33Y10/00 , B33Y70/10 , C08G69/14 , C08L77/02 , C08L77/06 , B29K2077/00 , B29K2309/00 , C08K2201/005 , C08L2203/30 , C08L2205/025
摘要： The present invention relates to a method for producing a molded body by the selective laser sintering of a sinter powder (SP). The sinter powder (SP) contains at least one polyamide (P) and 5 to 50 wt %, preferably 10 to 50 wt %, of at least one aluminum silicate. The at least one aluminum silicate has a D50 value in the range of 2.5 to 4.5 μm. The present invention also relates to molded bodies obtainable by means of the method according to the invention.
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公开(公告)号：US11186684B2
公开(公告)日：2021-11-30
申请号：US17258794
申请日：2019-07-10
申请人： BASF SE
发明人： Achim Stammer , Simon Gramlich , Andreas Bauder
摘要： The present invention relates to a process for continuously producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P). The present invention further relates to the polyamide powder (PP) thus obtainable and to the use of the polyamide powder (PP) as sinter powder (SP), and also to a process for producing a shaped body by exposing a layer of a polyamide powder (PP).
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公开(公告)号：US11078362B2
公开(公告)日：2021-08-03
申请号：US15999324
申请日：2017-02-16
申请人： BASF SE
发明人： Claus Gabriel , Simon Gramlich , Rainer Ostermann , Florian Richter , Raphael Dabbous , Thomas Meier , Wolfgang Schrof
IPC分类号： C08L77/06 , C08K5/3465 , C08K5/357 , C08K5/46 , B29C64/153 , B33Y70/00 , C09B67/02 , C08L77/02
摘要： The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.
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公开(公告)号：US09975994B2
公开(公告)日：2018-05-22
申请号：US15545546
申请日：2016-01-22
申请人： BASF SE
IPC分类号： C08G63/02 , C08G65/46 , C07D207/267 , C07C233/05
CPC分类号： C08G65/46 , C07C233/05 , C07D207/267
摘要： A method for desalinating a salt-containing polymer (SP) comprising a polyaryl ether having a softening temperature TS and a salt (S), comprising the steps of a) providing the salt-containing polymer (SP) at a first temperature T1 above the softening temperature TS of the polyaryl ether, b) contacting the salt-containing polymer (SP) provided in step a) with an extractant (E) to obtain a desalinated polymer (DP) comprising the polyaryl ether, and a salt-containing extractant (SE) comprising the extractant (E) and the salt (S).
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