公开(公告)号：US20150174808A1

公开(公告)日：2015-06-25

申请号：US14391870

申请日：2013-04-12

Applicant: BASF SE

Inventor： Hans Rudolph ,  Rainer Klostermann ,  Torben Kaminsky ,  Bernd Lohaus ,  Jürgen Ahlers ,  Bernhard Schmied ,  Peter Gutmann ,  Klaus Hahn ,  Frank Prissok ,  Elke Marten ,  Christian Däschlein

IPC: B29C47/00

CPC classification number: B29C47/0011 ,  B29B9/065 ,  B29B9/12 ,  B29B9/14 ,  B29B9/16 ,  B29C44/3461 ,  B29K2075/00 ,  B29L2031/00 ,  C08G18/0895 ,  C08G18/6674 ,  C08G18/7671 ,  C08J9/122 ,  C08J9/141 ,  C08J9/16 ,  C08J9/34 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2300/22 ,  C08J2367/00 ,  C08J2375/04 ,  C08J2377/00

Abstract: The invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent, said process comprising the steps of: a) pressing the polymer melt comprising a blowing agent through a perforated disk controlled to a temperature between 150° C. and 280° C. and into a pelletizing chamber, b) using a cutting device to comminute the polymer melt pressed through the temperature-controlled perforated disk into individual expanding pellets, c) discharging the pellets from the pelletizing chamber using a liquid stream, wherein the blowing agent comprises CO2 or N2 or a combination of CO2 and N2 and the pelletizing chamber is traversed by a stream of liquid which is controlled to a temperature between 10° C. and 60° C. and the pressure of which is from 0.7 bar to 20 bar above ambient pressure, the pressure and temperature for the liquid in the pelletizing chamber and also the temperature for the perforated disk being chosen such that the pellets are expanded in the pressurized liquid by the blowing agent they contain so as to produce expanded pellets having an uninterrupted skin.

Abstract translation: 本发明涉及一种由包含发泡剂的聚合物熔体制备发泡颗粒的方法，所述方法包括以下步骤：a）将包含发泡剂的聚合物熔体通过控制在150℃之间的多孔板压制 和280℃，并且进入造粒室，b）使用切割装置将通过温度控制的多孔盘压制的聚合物熔体粉碎成单独的膨胀颗粒，c）使用液体流将颗粒从造粒室排出，其中 发泡剂包括CO 2或N 2或CO 2和N 2的组合，并且造粒室通过液体流穿过，该液流被控制在10℃和60℃之间的温度，其压力为0.7巴 在环境压力以上20巴以下，选择造粒室中的液体的压力和温度以及多孔盘的温度，使得颗粒为exp 通过它们包含的发泡剂将其加压在加压液体中以产生具有不间断皮肤的发泡颗粒。

公开(公告)号：US11142625B2

公开(公告)日：2021-10-12

申请号：US15029686

申请日：2014-10-17

Applicant: BASF SE

Inventor： Peter Gutmann ,  Christian Däschlein ,  Jürgen Ahlers ,  Elke Marten ,  Torben Kaminsky ,  Dirk Kempfert

IPC: C08J9/34 ,  C08J9/12 ,  C08J9/14 ,  B29C44/34 ,  C08J9/00 ,  C08J9/16 ,  B29B7/88 ,  B29B9/12 ,  C08G18/66 ,  C08G18/76 ,  B29B9/06

Abstract: The invention relates to a process for production of expanded thermoplastic elastomer, said process comprising the steps of: (e) adding monomers and/or oligomers used for producing the thermoplastic elastomer with or without further starting materials into a first stage of a polymer-processing machine, (f) mixing the monomers and/or oligomers and also the optionally added further starting materials and reacting the monomers and/or oligomers to give a polymer melt in the first stage of the polymer-processing machine, (g) passing the polymer melt into a second stage of a polymer-processing machine and adding a physical blowing agent with or without further starting materials to obtain a polymer melt comprising a blowing agent, (h) molding the polymer melt comprising a blowing agent into an expanded thermoplastic elastomer.

公开(公告)号：US10005218B2

公开(公告)日：2018-06-26

申请号：US14391870

申请日：2013-04-12

Applicant: BASF SE

Inventor： Hans Rudolph ,  Rainer Klostermann ,  Torben Kaminsky ,  Bernd Lohaus ,  Jürgen Ahlers ,  Bernhard Schmied ,  Peter Gutmann ,  Klaus Hahn ,  Frank Prissok ,  Elke Marten ,  Christian Däschlein

IPC: B29C47/00 ,  B29B9/06 ,  C08G18/66 ,  C08G18/76 ,  C08J9/12 ,  C08G18/08 ,  B29C44/34 ,  B29B9/12 ,  B29B9/14 ,  B29B9/16 ,  C08J9/14 ,  C08J9/16 ,  C08J9/34 ,  B29K75/00 ,  B29L31/00

Abstract: The invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent, said process comprising the steps of: a) pressing the polymer melt comprising a blowing agent through a perforated disk controlled to a temperature between 150° C. and 280° C. and into a pelletizing chamber, b) using a cutting device to comminute the polymer melt pressed through the temperature-controlled perforated disk into individual expanding pellets, c) discharging the pellets from the pelletizing chamber using a liquid stream, wherein the blowing agent comprises CO2 or N2 or a combination of CO2 and N2 and the pelletizing chamber is traversed by a stream of liquid which is controlled to a temperature between 10° C. and 60° C. and the pressure of which is from 0.7 bar to 20 bar above ambient pressure, the pressure and temperature for the liquid in the pelletizing chamber and also the temperature for the perforated disk being chosen such that the pellets are expanded in the pressurized liquid by the blowing agent they contain so as to produce expanded pellets having an uninterrupted skin.

公开(公告)号：US20220332017A1

公开(公告)日：2022-10-20

申请号：US17753082

申请日：2020-08-20

Applicant: BASF SE

Inventor： Michael Freese ,  Torben Kaminsky

IPC: B29B9/06

Abstract: An underwater granulation system has a water box, a perforated plate with multiple through-openings for feeding a polymer melt into the water box, and a cutting plate support which is arranged in the water box so as to be driven in rotation about an axis of rotation (X) in a cutting direction. The cutting plate support has multiple cutting plates which face the perforated plate and are adapted to form granules by shearing particles from the polymer melt entering through the perforated plate. The water box is connected to a water supply for heat evacuation and for evacuating the separated particles from the water box. The water box also has a hollow cylindrical portion relative to the axis of rotation (X), in which multiple water inlets distributed over the circumference and multiple water outlets distributed over the circumference are arranged.

公开(公告)号：US20220289928A1

公开(公告)日：2022-09-15

申请号：US17753147

申请日：2020-08-25

Applicant: BASF SE

Inventor： Dirk WEINRICH ,  Volker Vogelsang ,  Rene Thomas Wiegmann ,  Sohaji Movahhed ,  Marc Fricke ,  Torben Kaminsky ,  Maria Thomas ,  Joerg Erbes ,  Wibke Loelsberg

IPC: C08J9/28 ,  B01J13/00

Abstract: A method can be used for manufacturing one or more bodies made of a porous material derived from precursors of the porous material in a sol-gel process. The method involves filling precursors of the porous material into a mold defining the shape of the body, where the precursors include at least two reactive components and a solvent, and forming a gel body. The step is then repeated so as to form several gel bodies. The gel bodies are then removed from the mold after a predetermined time in which the gel bodies are formed from the precursors of the porous material. The gel bodies are arranged adjacent to one another, a spacer is provided between two adjacent gel bodies so as to provide a clearance therebetween, and the solvent is then removed from the gel bodies.