-
公开(公告)号：US11560456B2
公开(公告)日：2023-01-24
申请号：US16470270
申请日：2017-12-15
Applicant: BASF SE
Inventor： Monica Haag , Stephan Deuerlein , Roland Krauss , Volker Klock , Holger Barthel
IPC: C08J3/075 , B29C48/68 , B29C48/00 , B29C48/395 , B29C48/53 , B29C48/625 , B29C48/685 , B29B7/42 , B29B7/82 , B29C48/05 , B29C48/345 , B29C48/535 , B29C48/04 , C08J3/24
Abstract: A single-screw extruder for changing a morphology of superabsorbent polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw in the invention has a first pitch value of a pitch of the screw flights along the conveying zone of the channel and, following in conveying direction, has a second pitch value of the pitch of the screw flights along the conveying zone of the channel, where the second pitch value is smaller than the first pitch value.
-
公开(公告)号：US20190330426A1
公开(公告)日：2019-10-31
申请号：US16470270
申请日：2017-12-15
Applicant: BASF SE
Inventor： Monica Haag , Stephan Deuerlein , Roland Krauss , Volker Klock , Holger Barthel
IPC: C08J3/075 , B29B7/42 , B29B7/82 , B29C48/00 , B29C48/04 , B29C48/395 , B29C48/53 , B29C48/625 , B29C48/68 , B29C48/685 , B29C48/345 , B29C48/535
Abstract: A single-screw extruder for changing a morphology of superabsorbent polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw in the invention has a first pitch value of a pitch of the screw flights along the conveying zone of the channel and, following in conveying direction, has a second pitch value of the pitch of the screw flights along the conveying zone of the channel, where the second pitch value is smaller than the first pitch value.
-
公开(公告)号：US12002609B2
公开(公告)日：2024-06-04
申请号：US17259368
申请日：2019-07-09
Applicant: BASF SE
Inventor： Rene Koenig , Rastko Joksimovic , Ingo Muenster , Volker Klock , Jae Hyung Hwang , Moritz Ehrenstein , Eike Hupe , Joachim Nilges , Ralf Liebscher , Christoffer Kieburg
CPC classification number: H01F1/33 , B22F1/16 , H01F1/147 , B22F1/10 , B22F2999/00 , B22F1/16 , C22C2202/02 , C22C33/02 , B22F2998/10 , B22F1/102 , B22F1/10 , B22F3/02 , B22F5/00 , C22C33/02
Abstract: A soft-magnetic powder coated with a silicon-based coating, wherein the silicon-based coating comprises at least one fluorine containing composition of formula (I), Si1-0.75cMcO2-0.5cFd (I), wherein c is in the range of 0.01 to 0.5, d is in the range of 0.04 to 2, and M is B or Al.
-
公开(公告)号：US09822203B2
公开(公告)日：2017-11-21
申请号：US14763185
申请日：2014-01-20
Applicant: BASF SE
Inventor： Monica Haag , Roland Krauss , Thomas Gieger , Volker Klock , Matthias Weismantel
IPC: C08F2/10 , C08F222/10 , C08F6/00 , C08F8/00 , C08J3/24 , A61L15/60 , C08F220/06
CPC classification number: C08F222/1006 , A61L15/60 , C08F2/10 , C08F220/06 , C08J3/245 , C08J2333/02 , C08F2222/1026 , C08L33/08
Abstract: A process for producing water-absorbing polymer particles having high free swell rate and high centrifuge retention capacity with simultaneously high permeability of the swollen gel bed by polymerization of an aqueous monomer solution in a polymerization reactor having at least two shafts (kneaders) which rotate in an axially parallel manner, subsequent extrusion at high temperatures and thermal surface postcrosslinking.
-
公开(公告)号：US11458665B2
公开(公告)日：2022-10-04
申请号：US16470590
申请日：2017-12-15
Applicant: BASF SE
Inventor： Monica Haag , Stephan Deuerlein , Holger Barthel , Volker Klock , Roland Krauss
IPC: B29C48/00 , B29C48/63 , B29C48/68 , B29C48/395 , B29C48/535 , B29C48/625 , B29C48/685 , B29B7/42 , C08J3/075 , C08L101/14 , B29K105/00
Abstract: A single-screw extruder for changing a morphology of a superabsorbent polymer, specifically a polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw has a pitch value of a pitch of the screw flights along the conveying zone of the channel, where the channel has a mixing-element arrangement with at least one mixing element which protrudes into the channel of the single-screw extruder and which is configured for the mixing of the SAP polymer gel.
-
Patent Agency Ranking
公开(公告)号：US10373748B2
公开(公告)日：2019-08-06
申请号：US15034039
申请日：2014-11-04
Applicant: BASF SE
Inventor： Sandro Pagano , Jae Hyung Hwang , Ralf Liebscher , Frank Prechtl , Oliver Koch , Otto Watzenberger , Volker Klock
Abstract: The invention relates to a soft-magnetic powder coated with a silicon based coating, wherein the silicon based coating comprises at least one of the following fluorine containing compositions: a) a fluorine containing composition of formula (I) Si1-0,25aM1aO2-0,5bFb (I) wherein a is in the range of 0.015 to 0.52, b is in the range of 0.015 to 0.52, M1 is H, K, Rb, Cs or NR14, wherein each R1 is independently selected from the group consisting of H, C1-6 alkyl, phenyl and benzyl; or b) a fluorine containing composition of formula (II) Si1-0,75cM2cO2-0,5dFd (II) wherein c is in the range of 0.005 to 0.17, d is in the range of 0.015 to 0.52, M2 is B or Al; or c) a fluorine containing composition of formula (III) Si1-1,25ePeO2-0,5fFf (III) wherein e is in the range of 0.003 to 0.10, f is in the range of 0.015 to 0.52. The invention further relates to a process of coating the soft-magnetic powder, the use of such soft-magnetic powder and an electronic component including such soft-magnetic powder.
-
公开(公告)号：US08945716B2
公开(公告)日：2015-02-03
申请号：US13920515
申请日：2013-06-18
Applicant: BASF SE
Inventor： Roland Krauss , Thomas Gieger , Volker Klock
IPC: B32B27/08
CPC classification number: B01J20/265 , B01J2220/68 , C08F220/06 , Y10T428/31866 , C08F2222/1026
Abstract: A process for producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension, classification and drying of the resulting moist polymer gel, and comminution of the coarse fraction removed in the classification of the moist polymer gel, wherein the classification of the moist polymer gel is performed by means of a plurality of bar decks arranged in a cascade in a vibrating frame.
Abstract translation: 一种生产吸水性聚合物颗粒的方法，包括单体溶液或悬浮液的聚合，所得湿聚合物凝胶的分级和干燥，以及粉碎在湿聚合物凝胶分级中除去的粗级分，其中分级 湿聚合物凝胶通过在振动框架中级联布置的多个条形甲板进行。
-
公开(公告)号：US20130338328A1
公开(公告)日：2013-12-19
申请号：US13920515
申请日：2013-06-18
Applicant: BASF SE
Inventor： Roland Krauss , Thomas Gieger , Volker Klock
IPC: B01J20/26
CPC classification number: B01J20/265 , B01J2220/68 , C08F220/06 , Y10T428/31866 , C08F2222/1026
Abstract: A process for producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension, classification and drying of the resulting moist polymer gel, and comminution of the coarse fraction removed in the classification of the moist polymer gel, wherein the classification of the moist polymer gel is performed by means of a plurality of bar decks arranged in a cascade in a vibrating frame.
Abstract translation: 一种生产吸水性聚合物颗粒的方法，包括单体溶液或悬浮液的聚合，所得湿聚合物凝胶的分级和干燥，以及粉碎在湿聚合物凝胶分级中除去的粗级分，其中分级 湿聚合物凝胶通过在振动框架中级联布置的多个条形甲板进行。
-
公开(公告)号：US20190308358A1
公开(公告)日：2019-10-10
申请号：US16470590
申请日：2017-12-15
Applicant: BASF SE
Inventor： Monica Haag , Stephan Deuerlein , Holger Barthel , Volker Klock , Roland Krauss
IPC: B29C48/00 , B29B7/42 , B29C48/395 , B29C48/535 , B29C48/625 , B29C48/63 , B29C48/685 , C08J3/075 , C08L101/14 , B29C48/68
Abstract: A single-screw extruder for changing a morphology of a superabsorbent polymer, specifically a polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw has a pitch value of a pitch of the screw flights along the conveying zone of the channel, where the channel has a mixing-element arrangement with at least one mixing element which protrudes into the channel of the single-screw extruder and which is configured for the mixing of the SAP polymer gel.
-
公开(公告)号：US10179185B2
公开(公告)日：2019-01-15
申请号：US15308383
申请日：2015-05-07
Applicant: BASF SE
Inventor： Markus Braun , Monica Haag , Stephan Deuerlein , Volker Klock , Roland Krauss
Abstract: A process for producing water-absorbing polymer particles is provided, comprising a) a polymerization step in which an aqueous monomer solution comprising at least one ethylenically unsaturated monomer M which bears acid groups and may have been at least partly neutralized and at least one crosslinker is polymerized to obtain an aqueous polymer gel; b) a pelletization step in which the aqueous polymer gel having a solids content of 35 to 70% by weight and a temperature of 75 to 125° C. is forced from a high-pressure zone through a die plate into a low-pressure zone and pellets are obtained, the pressure differential between the high-pressure zone and the low-pressure zone being 4 to less than 14 bar and the orifice ratio of the die plate being 30 to 80%; c) a drying step in which the pellets are dried to a moisture content of less than 10% by weight; d) a grinding step and a classifying step to obtain water-absorbing polymer particles; and e) surface crosslinking of the water-absorbing polymer particles. The water-absorbing polymer particles have a high swell rate and a high retention capacity combined with a favorable ratio of permeability of the swollen gel bed SFC to centrifuge retention capacity CRC.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.014 seconds)
