Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Westphal; Jochen
Address:
Dusseldorf, DE
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
4978747 Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by r December 18, 1990
Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to
4670548 Sulfo-group-containing trisazo dyestuffs June 2, 1987
Water-soluble dyestuffs of the formulawhereinA denotes sulphophenyl or sulphonaphthyl, which are optionally further substituted,B denotes sulpho-1,4-naphthylene, which is optionally further substituted,C denotes 1,4-phenylene or 1,4-naphthylene, which are optionally further substituted, andK










 
 
  Recently Added Patents
Method for manufacturing photoelectric conversion device
Audio signal clip detection
Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus
Memory cell and memory cell array using the same
Nanoparticle entrapment of materials
Semiconductor device and manufacturing method
Laser marking of a card
  Randomly Featured Patents
Purchasing alert methods and apparatus
Code server
Device for rapidly engaging and disengaging the trigger mechanism in the breech of a gun
Metal-dielectric electron beam scanning stack
Light-source driving device, optical scanning device, and image forming apparatus
Process for recovering 3,4-epoxy-1-butene
ITO powder and method of producing the same, coating material for transparent conductive material, and transparent conductive film
Method and apparatus for instantaneously measuring and indicating fuel consumption rate
Triazolopyridazines used to alleviate bronchial spasms
Installation structure of oil control valve