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公开(公告)号：US20230365487A1
公开(公告)日：2023-11-16
申请号：US18044516
申请日：2021-09-01
发明人： Sebastian BESTGEN , Thorben Schütz , Tim Bleith , Günther Gräff , Silvia Beyer , Tanja Nawrath
摘要： An improved process can be used for preparing vanillin (meth)acrylates and derivatives or structurally related compounds thereof in high purity, by reacting an alcohol with an activated (meth)acrylic acid derivative. Ethyl vanillin (meth)acrylate provides for improved room temperature crosslinking efficiency and is particularly suitable for paints/varnishes and coatings.
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公开(公告)号：US20240034715A1
公开(公告)日：2024-02-01
申请号：US18256111
申请日：2021-11-08
IPC分类号： C07C253/34 , C07C253/16 , C07C255/12
CPC分类号： C07C253/34 , C07C253/16 , C07C255/12
摘要： A process for purifying ethylene cyanohydrin involves incubating an industrial grade ethylene cyanohydrin product with at least one titanium(IV)alkoxide. Ethylene cyanohydrin products with purities of >99% contain less than 0.05% of ethylene glycol (EG), and/or contain a water content of less than 1000 ppm.
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公开(公告)号：US20220388943A1
公开(公告)日：2022-12-08
申请号：US17755100
申请日：2020-10-02
发明人： Marcel TRESKOW , Günther Gräff , Maik Caspari , Thorben Schütz , Steffen Krill
IPC分类号： C07C68/06
摘要： A process prepares glycerol carbonate (meth)acrylate by transesterification of methyl (meth)acrylate with glycerol carbonate, in the presence of a zirconium acetylacetonate catalyst. The catalyst is pretreated with 2% by weight to 25% by weight of water, based on the amount of catalyst.
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公开(公告)号：US11319276B2
公开(公告)日：2022-05-03
申请号：US17268465
申请日：2019-08-15
发明人： Marcel Treskow , Martin Glock , Günther Gräff , Thorben Schütz , Steffen Krill
IPC分类号： C07C67/26 , B01J27/132 , B01J27/138 , B01J31/02 , B01J31/22 , C07C67/54
摘要： The invention relates to a method for preparation of diesters from anhydrides of carboxylic acids.
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