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公开(公告)号：US12037429B2
公开(公告)日：2024-07-16
申请号：US17432135
申请日：2020-02-21
Applicant: BASF SE
Inventor： Monte Alan Peterson , Ruediger Funk , Matthias Weismantel , Juergen Schroeder
IPC: B02C4/42 , A61L15/60 , B01J20/26 , B01J20/28 , B01J20/30 , B02C4/02 , B02C4/28 , B02C4/40 , C08F2/06 , C08F220/06
CPC classification number: C08F220/06 , A61L15/60 , B01J20/267 , B01J20/28004 , B01J20/3021 , B02C4/02 , B02C4/286 , B02C4/40 , C08F2/06 , B01J2220/68
Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the resulting polymer gel and grinding the dried polymer gel with a roll mill, wherein the rolls of the roll mill are cleaned by reducing the feed rate to the roll mill, and if the deflection and/or the power consumption increases above a setpoint, operating the roll mill with reduced feed, and increasing the feed rate to the roll mill.
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公开(公告)号：US11826723B2
公开(公告)日：2023-11-28
申请号：US16305093
申请日：2017-05-24
Applicant: BASF SE
Inventor： Gerald Grünewald , Rüdiger Funk , Matthias Weismantel
CPC classification number: B01J20/26 , B01J20/28016 , B01J20/28047 , B01J20/3021 , B01J20/3078 , B02C13/06 , B02C21/00 , C08J3/075 , F26B17/04
Abstract: The invention relates to a belt drier arrangement for drying an aqueous polymer gel and for comminuting the dried polymer gel to give dried polymer particles, comprising:
a drier setup for drying an aqueous polymer gel,
a comminuting arrangement downstream of the drier setup relative to the product flow direction, for comminuting the dried polymer gel to give dried polymer particles. In accordance with the invention
the comminuting arrangement comprises at least a first comminutor and a second comminutor, each having a rotatable shaft with functional tools, the second comminutor being disposed downstream of the first comminutor relative to the product flow direction.-
公开(公告)号：US20220187034A1
公开(公告)日：2022-06-16
申请号：US17688032
申请日：2022-03-07
Applicant: BASF SE
Inventor： Oskar Stephan , Karl-Friedrich Schneider , Matthias Weismantel
Abstract: The invention relates to a heat exchanger for heating gas to a temperature in the range from 150 to 400° C., wherein the gas is heated by indirect heat transfer and all the surfaces of the walls of the heat exchanger which come into contact with the gas have been hot dip galvanized and the surfaces which come into contact with the gas, after the hot dip galvanization, have been heat treated at a temperature in the range from 400 to 750° C.
The invention further relates to the use of the heat exchanger.-
公开(公告)号：US20210402370A1
公开(公告)日：2021-12-30
申请号：US17289287
申请日：2019-11-04
Applicant: BASF SE
Inventor： Monte Alan Peterson , Ronny De Kaey , Karl Possemiers , Juergen Schroeder , Ruediger Funk , Matthias Weismantel
Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the feed line to vessel (B) ends inside vessel (B) below the liquid Level of the partly neutralized acrylic acid.
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公开(公告)号：US20200283588A1
公开(公告)日：2020-09-10
申请号：US16649793
申请日：2018-10-09
Applicant: BASF SE
Inventor： Oskar Stephan , Gerald Gruenewald , Matthias Weismantel , Karl Possemiers , Monte Alan Peterson , Ruediger Funk , Sylvia Bertha , Tom Catternan
IPC: C08J5/02
Abstract: A process for producing superabsorbents, comprising the steps of i) classifying the superabsorbent particles by means of one or more sieves and ii) removing metallic impurities by means of one or more magnetic separators, wherein classification is accomplished using sieves made of a wire mesh, the wires of the wire mesh consist of a steel composed of at least 70% by weight of iron, at least 10% by weight of chromium and less than 2.5% by weight of nickel, and the throughput of superabsorbent particles in the magnetic separator is in the range from 2.0 to 6.5 g/s per cm2 of free cross-sectional area.
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Patent Agency Ranking
公开(公告)号：US20200147652A1
公开(公告)日：2020-05-14
申请号：US16630873
申请日：2018-07-20
Applicant: BASF SE
Inventor： Rüdiger Funk , Matthias Weismantel , Monte Alan Peterson , Patrick Neal Hamilton , Ronny De Kaey , Karl Possemiers
Abstract: The invention relates to a classification process for superabsorbent polymer particles, comprising classifying the water-absorbent polymer particles in a screen machine under reduced pressure wherein the pressure above the uppermost sieve is from 0 to 4.0 mbar per sieve higher than below the undermost sieve.
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公开(公告)号：US10208149B2
公开(公告)日：2019-02-19
申请号：US15299922
申请日：2016-10-21
Applicant: BASF SE
Inventor： Uwe Stueven , Matthias Weismantel , Wilfried Heide , Marco Krüger , Volker Seidl , Stefan Blei , Dennis Loesch , Rüdiger Funk , Annemarie Hillebrecht
IPC: C08F222/20 , A61L15/60 , C08F2/34 , C08F220/06 , A61L15/24 , B29B9/10 , C08F222/10 , C08F222/38 , B29K33/04
Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.
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公开(公告)号：US20190003789A1
公开(公告)日：2019-01-03
申请号：US16064021
申请日：2016-12-21
Applicant: BASF SE
Inventor： Oskar Stephan , Karl-Friedrich Schneider , Matthias Weismantel
Abstract: The invention relates to a heat exchanger for heating gas to a temperature in the range from 150 to 400° C., wherein the gas is heated by indirect heat transfer and all the surfaces of the walls of the heat exchanger which come into contact with the gas have been hot dip galvanized and the surfaces which come into contact with the gas, after the hot dip galvanization, have been heat treated at a temperature in the range from 400 to 750° C.The invention further relates to the use of the heat exchanger.
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9.发明授权Water-absorbing polymer particles with high free swell rate and high permeability 有权具有高自由溶胀率和高渗透性的吸水聚合物颗粒公开(公告)号：US09587081B2
公开(公告)日：2017-03-07
申请号：US14861409
申请日：2015-09-22
Applicant: BASF SE
Inventor： Matthias Weismantel , Ulrich Riegel , Thomas Gieger , Markus Braun , Michael A. Mitchell
CPC classification number: C08J9/18 , C08J9/06 , C08J9/14 , C08J9/16 , C08J2300/14 , C08J2333/08 , C08J2333/14
Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.
Abstract translation: 一种生产具有高自由溶胀速率和高渗透性的吸水聚合物颗粒的方法，其通过聚合单体水溶液或悬浮液得到聚合物水凝胶，其中将基本上不含无机酸阴离子的热发泡剂混合到聚合物凝胶 ，随后聚合物凝胶的热干燥。
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公开(公告)号：US20160279605A1
公开(公告)日：2016-09-29
申请号：US15037364
申请日：2014-11-14
Applicant: BASF SE
Inventor： Gerald Grünewald , Rüdiger Funk , Matthias Weismantel , Monte A. Peterson
CPC classification number: B01J20/30 , B01J20/261 , B01J20/28016 , B01J20/3021 , B01J20/3078 , B01J20/3085 , B65G17/067 , B65G17/34 , B65G69/20 , F26B3/04 , F26B17/04
Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising the steps of: —processing an aqueous polymer gel from polymerization of a monomer solution or suspension, —drying the aqueous polymer gel in a conveyer dryer, in particular in a forced air conveyer dryer, wherein —the conveyer dryer has a circulating conveyer belt and the aqueous polymer gel is conveyed on the circulating conveyer belt, and wherein —the circulating conveyer belt is formed as a circulating plate conveyer belt, comprising a number of belt plates separated by a hinge line of a hinge assembly and each belt plate having a surface for receiving the aqueous polymer gel, wherein said hinge assembly comprises a knuckle joint (301) with the hinge line in form of a straight hinge line.
Abstract translation: 本发明涉及一种生产吸水性聚合物颗粒的方法，包括以下步骤： - 将聚合物水凝胶聚合成单体溶液或悬浮液，在输送干燥机中干燥聚合物凝胶，特别是在强制 空气输送机干燥器，其中 - 所述输送机干燥器具有循环输送带，并且所述水性聚合物凝胶在所述循环输送带上输送，并且其中所述循环输送带形成为循环板输送带，包括多个带板分离 通过铰链组件的铰链线，并且每个带板具有用于接收含水聚合物凝胶的表面，其中所述铰链组件包括铰链接头（301），铰链线以直线铰链线的形式。
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