US Patent 7402708 Method for producing aqueous ortho-phthalaldehyde solutions
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Patent Inventor Names
Karlheinz Giselbrecht0
Wolfgang Hillisch0
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Patent abstract
A method for producing aqueous ortho-phthalaldehyde solutions which comprises introducing an acetal of the o-phthalaldehyde into water and subsequently setting a pH <7 by adding an acid, whereupon, then at a temperature between 10° C. and 90° C., the acetal is converted into the o-phthalaldehyde by eliminating the corresponding alcohol, and also use of OPA acetals for producing these solutions.
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US Patent 07402708 Method for producing aqueous ortho-phthalaldehyde solutions US Patent 7402708 Method for producing aqueous ortho-phthalaldehyde solutions
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Patent Number
074027080
Patent Number
74027080
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Patent Jurisdiction
Patent Number
074027080
Date of Patent
July 22, 2008
0Patent Application Number
113387270
Date Filed
January 25, 2006
0Official Website
Patent Primary Examiner
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US Patent 07402708 Method for producing aqueous ortho-phthalaldehyde solutions
Infobox
Is a
Patent jurisdiction
Patent number
07402708
Date of patent
July 22, 2008
Patent application number
11338727
Date Filed
January 25, 2006
Patent primary examiner
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