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公开(公告)号：US20210206919A1
公开(公告)日：2021-07-08
申请号：US15999520
申请日：2017-02-16
Applicant: BASF SE
Inventor： Angela ULZHÖFER , Simon GRAMLICH , Rainer OSTERMANN , Achim STAMMER , Dirk SIMON , Ning ZHU
Abstract: Process for producing polyamide powders by precipitation The present invention relates to a process for producing polyamide powders and to the polyamide powders obtainable by this process. The present invention additionally relates to the use of the polyamide powder as sintering powder in selective laser sintering.
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公开(公告)号：US20180009944A1
公开(公告)日：2018-01-11
申请号：US15545546
申请日：2016-01-22
Applicant: BASF SE
Inventor： SIMON GRAMLICH , Achim STAMMER , Angela ULZHÕFER
IPC: C08G65/46 , C07D207/267 , C07C233/05
CPC classification number: C08G65/46 , C07C233/05 , C07D207/267
Abstract: 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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公开(公告)号：US20180009950A1
公开(公告)日：2018-01-11
申请号：US15545385
申请日：2016-01-22
Applicant: BASF SE
Inventor： Simon GRAMLICH , Achim STAMMER
IPC: C08G75/23 , B29C71/00 , B29K105/04 , B29C44/50 , B29K71/00
CPC classification number: C08G75/23 , B29C44/50 , B29C71/0009 , B29C2071/0027 , B29K2071/00 , B29K2105/04 , C08G65/46
Abstract: A method for desalinating a salt-containing polymer is provided. The salt-containing polymer contains a polyaryl ether and a salt. The method includes the steps of mechanically increasing the surface area of the salt-containing polymer to obtain a salt-containing polymer of increased surface area, and contacting the salt-containing polymer of increased surface area with an extractant to obtain a desalinated polymer containing the polyaryl ether, and a salt-containing extractant containing the extractant and the salt.
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4.发明申请METHOD FOR PRODUCING POLYAMIDES BY MEANS OF A SPRAY NOZZLE ARRANGEMENT FOR THE COLLISION OF SPRAY JETS 审中-公开通过喷雾喷嘴布置喷射喷嘴的方法生产聚氨酯的方法公开(公告)号：US20160325265A1
公开(公告)日：2016-11-10
申请号：US15104728
申请日：2014-12-17
Applicant: BASF SE
Inventor： NING ZHU , Rainer OSTERMANN , Heinrich SACK , Alexander GOETZ , Achim STAMMER , Dirk SIMON
Abstract: The invention relates to a method for producing polyamides by means of a spray nozzle arrangement for the collision of spray jets, comprising at least one spray nozzle forming a first spray jet having a first spray jet cross-sectional surface and a first spray jet longitudinal extension axis, and comprising a second spray jet forming a second spray jet having a second spray jet cross-sectional surface and a second spray jet longitudinal extension axis, wherein the first and second spray jets have a spray direction that is facing the gravitational field, and are arranged opposite one another such that in a spray direction facing the gravitational field, the formed spray jets collide in a collision area. The invention is characterized in that the angle between the first and the second spray jet is in the range of 5° to 170°, and that the first and second spray nozzles are arranged such that upon colliding, the first spray jet cross-sectional surface of the first spray jet forms an intersection with the second spray jet cross-sectional surface of the second spray jet.
Abstract translation: 本发明涉及一种通过用于喷射射流碰撞的喷嘴装置来生产聚酰胺的方法，该方法包括形成具有第一喷射横截面和第一喷射射流纵向延伸部分的第一喷射射流的至少一个喷嘴 并且包括形成具有第二喷射横截面和第二喷射射流纵向延伸轴线的第二喷射射流的第二喷射射流，其中所述第一和第二喷射喷嘴具有面向重力场的喷射方向，以及 彼此相对布置，使得在面向重力场的喷射方向上，所形成的喷射射流在碰撞区域中碰撞。 本发明的特征在于，第一和第二喷射射流之间的角度在5°至170°的范围内，并且第一和第二喷嘴布置成使得在碰撞时，第一喷射截面 的第一喷射喷嘴形成与第二喷射射流的第二喷射横截面的交点。
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公开(公告)号：US20160075828A1
公开(公告)日：2016-03-17
申请号：US14888243
申请日：2014-04-30
Applicant: BASF SE
Inventor： Rüdiger HÄFFNER , Rolf-Egbert GRÜTZNER , Achim STAMMER , Angela ULZHÖFER
CPC classification number: C08G69/46 , C08G69/06 , C08G69/30 , C08J5/18 , C08J2377/02
Abstract: The invention relates to a method for synthesizing a polyamide, in which method an aqueous solution is sprayed onto the polyamide before and/or during a solid-state postcondensation process. The aqueous solution comprises at least a first compound, selected from the group comprising phosphoric acid, fully neutralized salts of phosphoric acid, partially neutralized salts of phosphoric acid, and mixtures thereof, and a second compound, selected from the group comprising an acid, an anhydride, a lactone, ammonia, an amine, and mixtures thereof, with the stipulation that the second compound is not phosphoric acid and is not phosphoric acid anhydride. The spraying occurs at a temperature that lies below the boiling point of water. A polyamide that can be produced by means of the method according to the invention can be used in particular to produce films, monofilaments, fibers, threads, or textile sheet materials.
Abstract translation: 本发明涉及一种聚酰胺的合成方法，其中在固态缩聚工艺之前和/或期间将水溶液喷涂到聚酰胺上。 所述水溶液至少包含选自磷酸，磷酸的完全中和盐，磷酸的部分中和盐及其混合物的第一种化合物，以及选自酸，第 酸酐，内酯，氨，胺及其混合物，第二化合物不是磷酸而不是磷酸酐。 喷雾发生在低于水沸点的温度下。 可以通过根据本发明的方法生产的聚酰胺可以特别用于生产薄膜，单丝，纤维，线或纺织片材。
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Patent Agency Ranking
6.发明申请PREPARATION OF POLYAMIDES BY HYDROLYTIC POLYMERIZATION, POSTPOLYMERIZATION AND SUBSEQUENT EXTRACTION 审中-公开通过水解聚合制备聚氨酯，后处理和后续萃取公开(公告)号：US20160009869A1
公开(公告)日：2016-01-14
申请号：US14771578
申请日：2014-03-06
Applicant: BASF SE
Inventor： Silke BIEDASEK , Achim STAMMER , Gad KORY , William E. GRANT
Abstract: The present invention relates to a process for preparing polyamides, comprising a hydrolytic polymerization, a postpolymerization and an extraction.
Abstract translation: 本发明涉及一种制备聚酰胺的方法，包括水解聚合，后聚合和萃取。
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公开(公告)号：US20200261823A1
公开(公告)日：2020-08-20
申请号：US16062752
申请日：2016-12-07
Applicant: BASF SE , Kolon Plastics Inc.
Inventor： Achim STAMMER , Thomas HEITZ , Marvin KRAMP , Jong-Moon KIM , In-Gi CHO , Jin-Sang CHOI , Sang-Yup LEE
IPC: B01D3/00 , C07D323/06
Abstract: The present invention relates to a process for energy recovery in a process for the preparation of 1,3,5-trioxane.
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公开(公告)号：US20190085134A1
公开(公告)日：2019-03-21
申请号：US16086671
申请日：2017-03-14
Applicant: BASF SE
Inventor： Simon GRAMLICH , Achim STAMMER , Angela ULZHOEFER , Frank NIEDERMAIER , Michel GASSMANN
Abstract: 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：US20210269596A1
公开(公告)日：2021-09-02
申请号：US17258794
申请日：2019-07-10
Applicant: BASF SE
Inventor： Achim STAMMER , Simon GRAMLICH , Andreas BAUDER
Abstract: 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：US20200048395A1
公开(公告)日：2020-02-13
申请号：US16478703
申请日：2018-01-09
Applicant: BASF SE , Kolon Plastics Inc.
Inventor： Thomas Heitz , Minlu ZHANG , Achim STAMMER , JongMoon KIM , In-Gi CHO , Jin-Sang CHOI
Abstract: A process for making an oxymethylene polymer comprising polymerizing at least one compound capable of forming —CH2O— repeat units (monomer) in the presence of at least one ester of the general formula I (ester): R1—CO—O—R2 (I) wherein R1 can be hydrogen, wherein R1 and R2 are independently of each other linear or branched C1 to C10 alkyl C5 to C7 cycloalkyl —[R3-0-]nR4 wherein R3 is a linear or branched C2 to C5 alkylen and R4 is a linear of branched C1 to C5 alkyl and n is an integer of from 1 to 5. and in the presence of at least one Lewis acid.
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