US Patent 7211689 Method for production of isocyanates
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Patent abstract
In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfonamide, based on the total amount of primary amine and isocyanate formed in the reaction solution.
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US Patent 07211689 Method for production of isocyanates US Patent 7211689 Method for production of isocyanates
Infobox
Patent Number
0721168900
Patent Number
721168900
Edits on 26 Mar, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
072116890
Date of Patent
May 1, 2007
0Patent Application Number
104934980
Date Filed
October 17, 2002
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
072116890
Date of Patent
May 1, 2007
0Patent Application Number
104934980
Date Filed
October 17, 2002
0Official Website
Patent Primary Examiner
Edits on 8 Jun, 2022
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US Patent 07211689 Method for production of isocyanates
Infobox
Is a
Patent jurisdiction
Patent number
07211689
Date of patent
May 1, 2007
Patent application number
10493498
Date Filed
October 17, 2002
Patent primary examiner
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