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：US20210269614A1

公开(公告)日：2021-09-02

申请号：US17260841

申请日：2019-07-11

Applicant: BASF SE

Inventor： Juergen Ahlers ,  Dennis Jopp ,  Frank Reil ,  Peter Gutmann

IPC: C08J9/18 ,  C08J9/12 ,  C08J9/228 ,  C08J9/30 ,  C08G69/14 ,  C08G69/34

Abstract: Foam particles that have a bulk density below 300 kg/m3 and are based on polyamides, including 85% to 100% by weight of at least one copolyamide obtainable by polymerizing the following components: (A) 15% to 84% by weight of at least one lactam, (B) 16% to 85% by weight of a monomer mixture (M) including the following components: (B1) at least one C32-C40 dimer acid and (B2) at least one C4-C12 diamine, wherein the monomer mixture (M) includes in the range from 45 to 55 mol % of component (B1) and in the range from 45 to 55 mol % of component (B2), based on the total molar amount of the monomer mixture (M), and the sum total of the components of (A) and (B) is 100% by weight, and processes for production thereof.

公开(公告)号：US10392488B2

公开(公告)日：2019-08-27

申请号：US15028259

申请日：2014-10-09

Applicant: BASF SE

Inventor： Christian Däschlein ,  Peter Gutmann ,  Jürgen Ahlers

IPC: C08J9/16 ,  B29C44/00 ,  C08J9/18 ,  B29C44/34 ,  C08J9/12 ,  C08J9/232 ,  C08J9/236 ,  B29C44/08 ,  B29K9/06 ,  B29K19/00 ,  B29K67/00 ,  B29K75/00 ,  B29K77/00 ,  B29K96/04 ,  B29K105/00 ,  B29K105/04

Abstract: A process for production of expanded thermoplastic elastomer beads in the presence of a gaseous medium that surrounds thermoplastic elastomer beads. The process comprises a) an impregnating step, in which the gaseous medium has an impregnating temperature Ta, and the absolute pressure of the gaseous medium is greater than ambient pressure, the thermoplastic elastomer beads impregnated with a blowing agent, b) an expanding step, in which the thermoplastic elastomer beads expand as they are exposed to a pressure reduction at a first expanding temperature Tb, and c) optionally a fusing step, in which the expanded thermoplastic elastomer beads are fused together at a fusing temperature Tc to form at least one shaped part.

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：US09447249B2

公开(公告)日：2016-09-20

申请号：US14412233

申请日：2013-07-05

Applicant: BASF SE

Inventor： Patrick Spies ,  Frank Braun ,  Carsten Schips ,  Frank Prissok ,  Peter Gutmann ,  Klaus Hahn ,  Bernhard Schmied

IPC: C08J9/12 ,  C08J9/16 ,  C08J9/20 ,  C08J9/228 ,  C08J9/00 ,  C08G18/66 ,  C08G18/72 ,  C08G18/08 ,  C08F283/00 ,  C08L25/08 ,  C08L51/08 ,  C08L75/04 ,  C08F112/08 ,  C08G18/48 ,  C08L25/06 ,  C08J9/14

CPC classification number: C08J9/20 ,  C08F112/08 ,  C08F283/006 ,  C08G18/14 ,  C08G18/4854 ,  C08G18/6607 ,  C08G18/6674 ,  C08G18/72 ,  C08J9/0061 ,  C08J9/141 ,  C08J2201/026 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2351/08 ,  C08J2375/08 ,  C08L25/06 ,  C08L25/08 ,  C08L51/08 ,  C08L75/04 ,  C08F2/44 ,  C08F2/18

Abstract: Expandable-polymer-particle material comprising at least one thermoplastic polyurethane (TPU) with Vicat softening point (in accordance with ISO 306/ASO) below 80° C. and from 5 to 95% by weight of at least one polymer obtainable via free-radical polymerization, based on the entirety of TPU and of the polymer obtainable via free-radical polymerization, where the polymer obtainable via free-radical polymerization has been bonded to the TPU in a manner that gives a comb polymer, graft polymer, or copolymer, is suitable for the production of moldings, in particular for use as insulation material.

Abstract translation: 包含至少一种具有维卡软化点（根据ISO 306 / ASO）低于80℃的热塑性聚氨酯（TPU）和5至95重量％的至少一种可通过游离 - 基于通过自由基聚合可获得的TPU和聚合物的全部基团的自由基聚合，其中可通过自由基聚合获得的聚合物以赋予梳状聚合物，接枝聚合物或共聚物的方式结合到TPU上， 适用于模制品的生产，尤其适用于绝缘材料。