公开(公告)号：US20200262968A1

公开(公告)日：2020-08-20

申请号：US16339124

申请日：2017-10-02

申请人： BASF SE

发明人： Harald SCHAEFER ,  Daniel FLOJHAR ,  Jens SCHEIDEL ,  Thomas GENGER ,  Sebastina EMMERLING ,  Matthias KRONER ,  Guillermo ARENS

IPC分类号： C08G18/79 ,  C08K5/17 ,  C08K5/521 ,  C09D175/04 ,  C08K5/5313 ,  C08K5/5333 ,  C08G18/73

摘要： The present invention relates to a new process for preparing polyisocyanates containing isocyanurate groups and being flocculation-stable in solvents from (cyclo)aliphatic diisocyanates.

公开(公告)号：US20240059826A1

公开(公告)日：2024-02-22

申请号：US18266826

申请日：2021-12-13

申请人： BASF SE

发明人： Harald SCHAEFER ,  Jens SCHEIDEL ,  Daniel FLOJHAR ,  Stefan KIRSCH

IPC分类号： C08G18/79 ,  C08G18/08 ,  C08G18/24 ,  C08G18/02 ,  C09D175/04

CPC分类号： C08G18/792 ,  C08G18/0852 ,  C08G18/246 ,  C08G18/022 ,  C09D175/04 ,  C08G2150/00

摘要： Polyisocyanate composition containing



(A) at least one polyisocyanate obtainable by reacting at least one monomeric isocyanate,
(B) at least one solvent containing a mixture of C7-C14 aromatic hydrocarbons,
(C) optionally at least one further solvent,
(D) optionally at least one Lewis-acidic organic metal compound capable of accelerating the reaction of isocyanate groups with isocyanate-reactive groups,
(E) optionally other coatings additives,

wherein the amount of cumene in component (B) is less than 1 wt %, preferably less than 0.7 wt %.

公开(公告)号：US20200181449A1

公开(公告)日：2020-06-11

申请号：US16339544

申请日：2017-10-02

申请人： BASF SE

发明人： Harald SCHAEFER ,  Daniel FLOJHAR ,  Jens SCHEIDEL ,  Thomas GENGER ,  Matthias KRONER ,  Sebastian EMMERLING ,  Guillermo ARENS

IPC分类号： C09D175/04 ,  C08G18/73 ,  C08G18/79 ,  C08G18/24

摘要： 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.

公开(公告)号：US20160168082A1

公开(公告)日：2016-06-16

申请号：US14941167

申请日：2015-11-13

申请人： BASF SE

发明人： Tim Jungkamp ,  Robert BAUMANN ,  Michael BARTSCH ,  Gerd HADERLEIN ,  Hermann LUYKEN ,  Jens SCHEIDEL ,  Tobias AECHTNER ,  Peter PFAB ,  Petra DECKERT ,  Wolfgang SIEGEL ,  Peter BASSLER

IPC分类号： C07C253/30

CPC分类号： C07C253/30 ,  C07C253/10 ,  Y02P20/582 ,  C07C255/07

摘要： A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

摘要翻译： 描述了制备3-戊烯腈的方法，其特征在于以下方法步骤：（a）在至少一种溶解或分散的异构化催化剂上异构化包含2-甲基-3-丁烯腈的反应物流，得到流1，其包含 至少一种异构化催化剂，2-甲基-3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈，（b）蒸馏物流1，得到作为顶部产物的物流2，其包含2-甲基 -3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈，以及作为底部产物的料流3，其包含至少一种异构化催化剂，（c）蒸馏物流2以获得物流4， 与流2相比，基于流2中的所有五烯丙烯的总和和作为底部产物的流5，与流2相比富含（Z）-2-甲基-2-丁烯腈的顶部产物与流2相比较 ，富含3-戊烯腈和2-甲基-3-丁烯腈，基于所有戊烯腈的总和 （d）蒸馏流5以获得作为底部产物的流6，其包含3-戊烯腈和作为顶部产物的料流7，其包含2-甲基-3-丁烯腈。