公开(公告)号：US20220162152A1

公开(公告)日：2022-05-26

申请号：US17434815

申请日：2020-03-02

Applicant: BASF SE

Inventor： Matthaeus Kopczynski ,  Dieter Kolassa ,  Hannes Ferdinand Zipfel ,  Ansgar Gereon Altenhoff ,  Christian Eidamshaus

IPC: C07C209/26 ,  B01J23/72

Abstract: An alkylene-diamine, a hydroxyalkylene-amine, and hydrogen are reacted in presence of a heterogenous catalyst containing copper to produce polyalkylene-polyamines.

公开(公告)号：US11365283B2

公开(公告)日：2022-06-21

申请号：US17603656

申请日：2020-04-09

Applicant: BASF SE

Inventor： Matthaeus Kopczynski ,  Ansgar Gereon Altenhoff ,  Dieter Kolassa ,  Hannes Ferdinand Zipfel ,  Christian Eidamshaus ,  Joerg Pastre

IPC: C08G59/50 ,  C08J5/24

Abstract: Epoxy resin-based fibre matrix compositions contain alkyl substituted ethylene amines such as dimethyldiethylenetriamine (DMDETA, also dimethyl-1,4,7-triazaheptane), as a curing agent. These curing agents are characterized by a short curing time for a comparatively long processing time, and make it possible to obtain cured epoxy resins that exhibit low brittleness and high tensile strength and have a high glass transition temperature; as a result of which the fibre matrix composition is suitable particularly for use in pultrusion and winding processes.

公开(公告)号：US11345680B2

公开(公告)日：2022-05-31

申请号：US16766678

申请日：2018-11-13

Applicant: BASF SE

Inventor： Rainer Klopsch ,  Hannes Ferdinand Zipfel ,  Alvaro Gordillo Bolonio

IPC: C07D403/12

Abstract: The present application relates to a method for preparing compounds of the formula I in which, in a first step, γ-butyrolactone is reacted with diamines of the formula II to form bisamides of the formula Ill, with the amide function of the bisamides of the formula Ill then undergoing partial or complete catalytic hydrogenation in step II) to form bispyrrolidine compounds of the formula I.

公开(公告)号：US20220145001A1

公开(公告)日：2022-05-12

申请号：US17603656

申请日：2020-04-09

Applicant: BASF SE

Inventor： Matthaeus Kopczynski ,  Ansgar Gereon Altenhoff ,  Dieter Kolassa ,  Hannes Ferdinand Zipfel ,  Christian Eidamshaus ,  Joerg Pastre

IPC: C08G59/50 ,  C08J5/24

Abstract: Epoxy resin-based fibre matrix compositions contain alkyl substituted ethylene amines such as dimethyldiethylenetriamine (DMDETA, also dimethyl-1,4,7-triazaheptane), as a curing agent. These curing agents are characterized by a short curing time for a comparatively long processing time, and make it possible to obtain cured epoxy resins that exhibit low brittleness and high tensile strength and have a high glass transition temperature; as a result of which the fibre matrix composition is suitable particularly for use in pultrusion and winding processes.

公开(公告)号：US12275019B2

公开(公告)日：2025-04-15

申请号：US17606997

申请日：2020-04-27

Applicant: BASF SE

Inventor： Alexej Michailovski ,  Alexander Panchenko ,  Hannes Ferdinand Zipfel ,  Martin Ernst ,  Gabriela Budemberg ,  Stefanov Nedko Drebov ,  Sylvia von Krog ,  Tamara Kuelzer ,  Long Phan

IPC: B03D1/01 ,  C07C215/18

Abstract: The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein R1 is C9-C22 alkyl or alkenyl, which is linear or branched, R2 is H, C1-C4 alkyl, which is linear or branched, R3 is —X—NH2, H or C1-C4 alkyl, which is linear or branched, and X is C2-C4 alkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula 1-X wherein R1 is C9-C15 alkyl, which is linear or branched, R2 is H, R3 is —X—NH2 and X is C2-C4 alkylene, which is linear or branched, is disclosed.

公开(公告)号：US20220212204A1

公开(公告)日：2022-07-07

申请号：US17606997

申请日：2020-04-27

Applicant: BASF SE

Inventor： Alexej Michailovski ,  Alexander Panchenko ,  Hannes Ferdinand Zipfel ,  Martin Ernst ,  Gabriela Budemberg ,  Stefanov Nedko Drebov ,  Sylvia von Krog ,  Tamara Kuelzer ,  Long Phan

IPC: B03D1/01 ,  C07C215/18

Abstract: The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein R1 is C9-C22 alkyl or alkenyl, which is linear or branched, R2 is H, C1-C4 alkyl, which is linear or branched, R3 is —X—NH2, H or C1-C4 alkyl, which is linear or branched, and X is C2-C4 alkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula 1-X wherein R1 is C9-C15 alkyl, which is linear or branched, R2 is H, R3 is —X—NH2 and X is C2-C4 alkylene, which is linear or branched, is disclosed.