(3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof, method for their preparation and use of these compounds for dyeing fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 2008
Grant Date -
Aug 9, 2007
app pub date -
Dec 2, 2004
filing date -
Feb 24, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The object of the present invention are (3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof of formula (I), with 0.ltoreq.n.gtoreq.2 and HX denoting an inor-ganic or organic acid, ##STR00001## the colorant containing these compounds and a method for producing the compounds of formula (I).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully