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1.发明申请公开(公告)号：US20200262968A1
公开(公告)日：2020-08-20
申请号：US16339124
申请日：2017-10-02
Applicant: BASF SE
Inventor： Harald SCHAEFER , Daniel FLOJHAR , Jens SCHEIDEL , Thomas GENGER , Sebastina EMMERLING , Matthias KRONER , Guillermo ARENS
IPC: C08G18/79 , C08K5/17 , C08K5/521 , C09D175/04 , C08K5/5313 , C08K5/5333 , C08G18/73
Abstract: The present invention relates to a new process for preparing polyisocyanates containing isocyanurate groups and being flocculation-stable in solvents from (cyclo)aliphatic diisocyanates.
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公开(公告)号：US20250019483A1
公开(公告)日：2025-01-16
申请号：US18709569
申请日：2022-11-11
Applicant: BASF SE
Inventor： Frederic LUCAS , Nico VELING , Kerstin HEINEN , Harald SCHAEFER , Jens SCHEIDEL , Thomas GENGER
Abstract: A process for the preparation of polyisocyanates containing iminooxadiazinedione groups, comprising reacting at least one (cyclo)aliphatic diisocyanate in the presence of at least one oligomerization catalyst, and when the reaction has reached a predeterminable degree of conversion, based on the (cyclo)aliphatic diisocyanates, stopping the reaction by addition of at least one catalyst poison for the oligomerization catalyst, wherein the oligomerization catalyst is a salt containing a fluoride or poly(hydrogen)fluoride [F−×(HF)m] as anion and the catalyst poison is a solution containing at least one alcohol comprising at least 6 carbon atoms as solvent and wherein m is a number between 0.01 and 20.
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3.发明申请公开(公告)号：US20200216711A1
公开(公告)日：2020-07-09
申请号：US16647792
申请日：2018-09-11
Applicant: BASF SE
Inventor： Harald SCHAEFER , Thomas GENGER , Sebastian EMMERLING
Abstract: The present invention relates to novel color drift-stable compositions of polyisocyanates of (cyclo)aliphatic diisocyanates.
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4.发明申请公开(公告)号：US20200181449A1
公开(公告)日：2020-06-11
申请号：US16339544
申请日：2017-10-02
Applicant: BASF SE
Inventor： Harald SCHAEFER , Daniel FLOJHAR , Jens SCHEIDEL , Thomas GENGER , Matthias KRONER , Sebastian EMMERLING , Guillermo ARENS
IPC: C09D175/04 , C08G18/73 , C08G18/79 , C08G18/24
Abstract: The present invention relates to a novel process for preparing isocyanurate-comprising polyisocyanates of (cyclo)aliphatic diisocyanates that are especially stable to color drift in solvents.
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