公开(公告)号：US20240158613A1

公开(公告)日：2024-05-16

申请号：US18278642

申请日：2022-02-18

Applicant: BASF SE

Inventor： Thomas Georg GFROERER ,  Heinz HERBST ,  Oliver REICH ,  Gazi TUERKOGLU

IPC: C08K7/00 ,  B29B9/06 ,  B29B9/12 ,  B29K105/00 ,  B29K509/00 ,  C08K3/22 ,  C08K5/098 ,  C08K5/134 ,  C08K5/526

CPC classification number: C08K7/00 ,  B29B9/12 ,  C08K3/22 ,  C08K5/098 ,  C08K5/134 ,  C08K5/526 ,  B29B9/06 ,  B29K2105/0044 ,  B29K2509/00 ,  C08K2003/2206

Abstract: The invention relates to a method for manufacturing a pellet in a pellet mill, which method comprises the steps of (A) pressing a mixture for compaction by a roller through a nozzle to obtain a strand, and (B) comminuting the strand to obtain the pellet, wherein the mixture for compaction comprises (i) 87 to 97 wt. % of a polymer stabilizer mixture polymer stabilizer mixture, which comprises the polymer stabilizers (i-1) 21 to 29 wt. % of tris(2,4-ditert-butylphenyl) phosphite (CAS-No. 31570-04-4), (i-2) 21 to 29 wt. % of tetrakis-[3-(3,5-ditert-butyl-4-hydroxy-phenyl)-propionyloxymethyl]methane (CAS-No. 6683-19-8), (i-3) 8 to 12 wt. % of a C16-C18 fatty acid calcium salt, (i-4) 36 to 44 wt. % of a calcium oxide, and wt. % of the polymer stabilizers (i-1), (i-2), (i-3) and (i-4) are based on the weight of the polymer stabilizer mixture, and (ii) 3 to 13 wt. % of a processing aid, which is a propylene-ethylene copolymer and which possesses a melting enthalpy below 100 J/g at 101.32 kPa. The pellet is useful for a dust-free handling of its polymer stabilizer mixture at a manufacturing of a stabilized polymer. Furthermore, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is disclosed, which comprises the dosing of the pellet to the polymer.

公开(公告)号：US20210024448A1

公开(公告)日：2021-01-28

申请号：US16980267

申请日：2019-03-06

Applicant: BASF SE

Inventor： Michael KOCH ,  Oliver REICH ,  Michael SCHIER

IPC: C07C67/08 ,  B01J31/02 ,  B01J35/12

Abstract: A process for esterification and/or trans-esterification, uses an acid as catalyst in the presence of an anionic surfactant. The process may involve esterifying and/or trans-esterifying at least one fatty acid and/or fatty acid ester with at least one alcohol using at least one acid catalyst, such as methanesulfonic acid, in the presence of at least one anionic surfactant

公开(公告)号：US20240149496A1

公开(公告)日：2024-05-09

申请号：US18278641

申请日：2022-02-18

Applicant: BASF SE

Inventor： Thomas Georg GFROERER ,  Oliver REICH ,  Heinz HERBST ,  Gazi TUERKOGLU

IPC: B29B9/06 ,  B29B9/12 ,  C08J3/12 ,  C08K5/098 ,  C08K5/134 ,  C08K5/526 ,  C08L23/16

CPC classification number: B29B9/06 ,  B29B9/12 ,  C08J3/12 ,  C08K5/098 ,  C08K5/134 ,  C08K5/526 ,  C08L23/16 ,  B29K2023/16

Abstract: The invention relates to a method for manufacturing a pellet in a pellet mill, which method comprises the steps of (A) pressing a mixture for compaction by a roller through a nozzle to obtain a strand, and (B) comminuting the strand to obtain the pellet, wherein the mixture for compaction comprises (i) 87 to 97 wt. % of a polymer stabilizer mixture polymer stabilizer mixture, which comprises the polymer stabilizers (i-1) 35 to 45 wt. % of tris(2,4-ditert-butylphenyl) phosphite (CAS-No. 31570-04-4), (i-2) 15 to 25 wt. % of tetrakis-[3-(3,5-ditert-butyl-4-hydroxy-phenyl)-propionyloxymethyl]methane (CAS-No. 6683-19-8), (i-3) 35 to 45 wt. % of a C16-C18 fatty acid calcium salt, and wt. % of the polymer stabilizers (i-1), (i-2) and (i-3) are based on the weight of the polymer N stabilizer mixture, and (ii) 3 to 13 wt. % of a processing aid, which is a propylene-ethylene copolymer and which possesses a melting enthalpy below 100 J/g at 101.32 kPa. The pellet is useful for a dust-free handling of its polymer stabilizer mixture at a manufacturing of a stabilized polymer. Furthermore, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is disclosed, which comprises the dosing of the pellet to the polymer.