公开(公告)号：US20220388206A1

公开(公告)日：2022-12-08

申请号：US17755917

申请日：2020-11-13

Applicant: BASF SE

Inventor： Frank PRISSOK ,  Elmar Poeselt ,  Lisa Marie Schmidt ,  Theresa Huelsmann ,  Frank Thielbeer ,  Peter Gutmann ,  Uwe Keppeler

IPC: B29C44/34 ,  B29C44/04 ,  C08J9/16

Abstract: Molded articles contain a foam composed of a thermoplastic elastotner (TPE-1). The foam has a storage modulus (G modulus) at 25° C. and 1 Hz within the range from 0.01 to 0.5 MPa, a molding density within the range from 20 to 400 kg/m3, and a comfort factor of greater than 4. A process produces molded articles of this kind, and the molded article can be used for producing floors, mattresses, seating furniture, bicycle saddles, car seats, motorcycle seats, components of a shoe, shoe inserts, packaging, shock absorbers, protectors, fall protection mats, elastic insulating material, or sealing material.

公开(公告)号：US20240182661A1

公开(公告)日：2024-06-06

申请号：US18550450

申请日：2022-03-10

Applicant: BASF SE

Inventor： Lisa Marie Schmidt ,  Matthias Goldbeck ,  Uwe Keppeler ,  Franziska Dennhardt ,  Theresa Huelsmann ,  Florian Tobias Rapp

IPC: C08J9/224 ,  B29B7/48 ,  B29B9/06 ,  B29B9/12 ,  B29B9/16 ,  B29K21/00 ,  B29K75/00 ,  B29K105/04 ,  C08J9/12 ,  C08J9/18

CPC classification number: C08J9/224 ,  B29B9/065 ,  B29B9/12 ,  B29B9/16 ,  C08J9/122 ,  C08J9/18 ,  B29B7/48 ,  B29B2009/163 ,  B29K2021/003 ,  B29K2075/00 ,  B29K2105/04 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2375/08

Abstract: A process for producing foam particles from expanded thermoplastic elastomer involves (a) mixing a thermoplastic elastomer melt with a blowing agent in an extruder; (b) pressing the thermoplastic elastomer melt mixed with the blowing agent through a die plate into a pelletizing chamber; and (c) comminuting the thermoplastic elastomer melt pressed through the die plate into individual pellets. A liquid flows through the pelletizing chamber, and the pressure and temperature of the liquid are chosen such that the pellets are expanded to a desired degree in the liquid by the blowing agent and solidify to form foam particles. Additionally, the liquid in the pelletizing chamber contains wax which accumulates on the surface of the pellet during the cutting and expansion in the pelletizing chamber; and/or after separation from the liquid and drying of the foam particles, a wax is applied to the foam particles of expanded thermoplastic elastomer.

公开(公告)号：US20220153948A1

公开(公告)日：2022-05-19

申请号：US17432970

申请日：2020-02-27

Applicant: BASF SE

Inventor： Frank Prissok ,  Juergen Ahlers ,  Guenter Matzke ,  Uwe Keppeler ,  Peter Gutmann

IPC: C08J9/18 ,  C08G18/76 ,  C08G18/32 ,  C08G18/48 ,  C08K5/11 ,  C08G18/66 ,  C08J9/228 ,  C08J9/12

Abstract: A foamed pellet material contains a composition (Z1) that contains a thermoplastic polyurethane (TPU-1) and at least one plasticizer (W). The composition (Z1) has a Shore hardness within a range from 15 A to 43 A. A process can produce a foamed pellet material of this kind. The foamed pellet material can be used for the production of a molded article.

公开(公告)号：US12234338B2

公开(公告)日：2025-02-25

申请号：US16311888

申请日：2017-06-21

Applicant: BASF SE

Inventor： Uwe Keppeler ,  Juergen Bartl ,  Juergen Ahlers ,  Christian Daeschlein ,  Peter Gutmann ,  Frank Prissok

IPC: C08J9/18 ,  B29C44/34 ,  B29K77/00 ,  B29K101/12 ,  C08G69/40 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232

Abstract: A process for producing foam particles composed of thermoplastic elastomers having polyamide segments, comprising the steps: (a) production of a suspension of pellets of the thermoplastic elastomer in a suspension medium, (b) addition of a blowing agent, (c) impregnation of the pellets with the blowing agent by heating of the suspension in a pressure vessel to an impregnation temperature IMT at an impregnation pressure IMP, depressurization of the suspension by emptying of the pressure vessel via a depressurization device and work-up of the foam particles obtained, and also foam particles obtainable by the process.

公开(公告)号：US12215183B2

公开(公告)日：2025-02-04

申请号：US16349339

申请日：2017-11-13

Applicant: BASF SE

Inventor： Peter Gutmann ,  Elmar Poeselt ,  Hye Jin Park ,  Uwe Keppeler ,  Lutz-Peter Hoenemann

IPC: C08G18/48 ,  B29C48/05 ,  B29C48/345 ,  B29C48/37 ,  B29C48/92 ,  C08G18/12 ,  C08G18/66 ,  C08G18/76 ,  C08G18/80 ,  C08J9/18 ,  C08K3/36 ,  C08L75/06 ,  C08L75/08 ,  B29C48/00 ,  B29C48/04

Abstract: Disclosed herein are expanded thermoplastic polyurethane beads polymerized from an isocyanate, an isocyanate-reactive compound having a molecular weight between 500 and 10 000 g/mol and a chain extender, wherein customary adjuvants may be additionally present, and the thermoplastic polyurethane has a hard phase fraction ranging from 0.1 to 0.95 and the hard phase fraction is defined by: Hard ⁢ ⁢ phase ⁢ ⁢ fraction = ∑ x = 1 k ⁢ ( ( m KVx M KV x ) · M Iso + m KVx ) m ges where MKVx represents a molar mass of chain extender x in g/mol, mKVx represents a mass of chain extender x in g, MIxo represents a molar mass of isocyanate in g/mol, mges represents a total mass of all starting materials without adjuvants, and k represents a number of chain extenders. Also disclosed herein are processes for producing expanded thermoplastic polyurethanes and processes for producing molded parts therefrom.

公开(公告)号：US20240002621A1

公开(公告)日：2024-01-04

申请号：US18247292

申请日：2021-09-30

Applicant: BASF SE

Inventor： Frank THIELBEER ,  Lisa Marie Schmidt ,  Theresa Huelsmann ,  Elmar Poeselt ,  Peter Gutmann ,  Uwe Keppeler ,  Amir Doroodian ,  Florian Tobias Rapp

IPC: C08J9/18 ,  C08J9/12 ,  C08J9/232 ,  C08J9/00 ,  C08J3/20

CPC classification number: C08J9/18 ,  C08J9/122 ,  C08J9/232 ,  C08J2203/22 ,  C08J3/203 ,  C08J2375/08 ,  C08J2203/06 ,  C08J9/0066

Abstract: Laser-markable foamed pellets contain a composition (MI), containing a thermoplastic elastomer (TPE-1) and a color component as component (c1) selected from laser marking additives. A process can be used for producing said laser-markable foamed pellets. The laser-markable foamed pellets according to the present invention can be used for preparing a laser-markable molded body. A process for preparing a laser-markable molded body involves providing and fusing the laser-markable foal led pellets.

公开(公告)号：US09938389B2

公开(公告)日：2018-04-10

申请号：US15028357

申请日：2014-09-29

Applicant: BASF SE

Inventor： Uwe Keppeler

IPC: C08J9/18 ,  C08J9/20 ,  B29C44/34 ,  C08J9/00 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232 ,  C08J9/236 ,  C08J9/228

CPC classification number: C08J9/18 ,  B29C44/3453 ,  B29C44/3461 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/141 ,  C08J9/228 ,  C08J9/232 ,  C08J9/236 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/052 ,  C08J2300/16 ,  C08J2367/02 ,  C08J2467/04

Abstract: A process for producing expanded foam beads from pellets comprising at least one biodegradable polyester. The process comprises (i) producing a suspension comprising pellets in an aqueous suspension medium, (ii) impregnating the pellets present in the suspension from step (i) with at least one physical blowing agent by heating the pellet suspension to a depressurization temperature IMT, with stirring, to provide pellets laden with blowing agent in the suspension medium, and (iii) depressurizing the suspension obtained in step (ii) and cooling the depressurized suspension with a liquid aqueous coolant, in order to obtain the expanded foam beads. The blowing agent can be added in step I, or in step ii during the heating phase or following the heating phase. Following the heating phase, the suspension is maintained at a temperature in the range from IMT minus 5° C. to IMT plus 2° C. for 3 to 100 minutes, and the ratio of aqueous coolant to suspension medium is at least 0.3. The invention further relates to expanded foam beads obtained by the process and to moldings that are produced from the expanded foam beads.

公开(公告)号：US20220267553A1

公开(公告)日：2022-08-25

申请号：US17596435

申请日：2020-06-12

Applicant: BASF SE ,  BASF Polyurethanes GmbH

Inventor： Elmar POESELT ,  Uwe Keppeler ,  Christina Tepper ,  Frank Prissok ,  Dirk Kempfert ,  Lisa Marie Schmidt ,  Wolfgang Guenter Micklitz

IPC: C08J9/35 ,  C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08J9/14 ,  C08J9/228 ,  C08J9/00

Abstract: A process can be used for producing a thermoplastic polyurethane, where the process at least involves converting at least one isocyanate composition and a polyol composition, to obtain a prepolymer having isocyanate groups, and reacting the resulting prepolymer with at least one chain extender. The at least one isocyanate composition contains an isocyanate selected from naphthylene 1,5-diisocyanate (NDI), diphenylmethane 4,4′-diisocyanate (MDI), p-phenyl diisocyanate (PPDI), o-tolidine diisocyanate (TODI), ethylene diphenyl diisocyanate (EDI), or mixtures thereof. The polyol composition contains a polytetrahydrofuran or a derivative thereof. A thermoplastic polyurethane obtained or obtainable by such a process is useful, and a foamed pellet material can be produced containing such a thermoplastic polyurethane. The foamed pellet material of the invention can be used for production of a molded article.

公开(公告)号：US10279516B2

公开(公告)日：2019-05-07

申请号：US14897746

申请日：2014-06-11

Applicant: BASF SE

Inventor： Christian Däschlein ,  Peter Gutmann ,  Frank Prissok ,  Uwe Keppeler ,  Jürgen Ahlers

IPC: B29C44/34 ,  B29B9/06 ,  C08J9/16 ,  B29B9/12 ,  B29C44/04 ,  C08J9/00 ,  C08J9/12 ,  C08J9/34 ,  B29B7/88 ,  B29B7/90 ,  B29B9/14 ,  B29C47/00 ,  B29C47/86 ,  B29K21/00 ,  B29K77/00 ,  B29K105/00 ,  B29K105/16

Abstract: A process for producing expanded pellets from a thermoplastic elastomer having an elongation at break of more than 100% measured to DIN EN ISO 527-2, comprising: (a) pressing a polymer melt comprising a blowing agent through a perforated disk (18) controlled to a temperature between 150° C. and 280° C. and into a pelletizing chamber (26), (b) using a cutting device (20) to comminute the polymer melt pressed through the perforated disk (18) into individual expanding pellets, (c) discharging the pellets from the pelletizing chamber (26) using a liquid stream (36), wherein the blowing agent comprises CO2 and/or N2 and the amount of blowing agent in the polymer melt is from 0.5 to 2.5 wt %, the pelletizing chamber (26) is traversed by a stream of liquid at a temperature between 5° C. and 90° C. and the pressure of 0.1 bar to 20 bar above ambient pressure such that the pellets are expanded in the pressurized liquid by the blowing agent, producing expanded pellets having an uninterrupted skin.

公开(公告)号：US20230383084A1

公开(公告)日：2023-11-30

申请号：US18245156

申请日：2021-09-13

Applicant: BASF SE

Inventor： Elmar POESELT ,  Frank Thielbeer ,  Lisa Marie Schmidt ,  Theresa Huelsmann ,  Peter Gutmann ,  Uwe Keppeler ,  Florian Tobias Rapp ,  Eva Anna Haase

IPC: C08J9/232

CPC classification number: C08J9/232 ,  C08J2201/02 ,  C08J2375/04

Abstract: A molded body contains foamed pellets, containing a composition (M1) containing a thermoplastic elastomer (TPE-1), having a ratio of average surface area to average volume of the pellets (A/V) determined according to method-example 1 and 2 in a range of from 1.4 to 3.0. A process for preparing the molded body involves providing the foamed pellets comprising the composition (M1), and fusing the foamed pellets to obtain the molded body. A molded body obtained or obtainable by the process is useful in furniture, seating, cushioning, car wheels or parts of car wheels, toys, animal toys, tires or parts of a tire, saddles, balls and sports equipment, sports mats, or as floor covering or wall paneling, especially for sports surfaces, track and field surfaces, sports halls, children's playgrounds, and pathways.