C09B 9 - Esters or ester-salts of leuco compounds of vat dyestuffs

Patents for C09B 9 - Esters or ester-salts of leuco compounds of vat dyestuffs (45)
09/2014
09/15/2014	CA2842847A1 Method and apparatus for revealing a hidden element
08/2014
08/06/2014	EP2760940A1 Thermochromic compositions from trisubstituted pyridine leuco dyes
04/2013
04/04/2013	WO2013049229A1 Thermochromic compositions from trisubstituted pyridine leuco dyes
04/04/2013	CA2855287A1 Thermochromic compositions from trisubstituted pyridine leuco dyes
02/2011
02/02/2011	CN101381525B Method for preparing vat yellow 2 anthraquinone thiazole dyes
05/2010
05/26/2010	CN1887389B Making process of playing cards with lasting fragrance
09/2009
09/16/2009	CN100540611C Method for producing reduction olive T(C.I. Vat Black 25)
08/2009
08/12/2009	CN100526390C Production technology improvement for reduction cyanine blue BO(C.I. Vat Blue 20)
06/2009
06/17/2009	CN101457027A High-grade glow blue pigment and preparation method thereof
05/2009
05/19/2009	US7534290 blending indium oxide with at least one hydrate forming oxide to form a mechanical mixture, heating the mechanical mixture to a sufficiently high temperature to form an indate precursor, and blending the indate precursor with at least one non-hydrate forming oxide to form a co-stabilized mixture
03/2009
03/11/2009	CN101381525A Method for preparing vat yellow 2 anthraquinone thiazole dyes
10/2008
10/29/2008	CN100429281C Process for dyeing cellulosic fibre materials with at least two vat dyes
09/2008
09/16/2008	US7425235 paints or coatings comprising organic pigments or dyes complexed to the surfaces of a layered or fibrous inorganic clays
05/2008
05/07/2008	CN101173112A Novel method for producing reduction eriochrome BC(C.I. Vat Blue 6)
05/07/2008	CN101173111A Production technology improvement for reduction cyanine blue BO(C.I. Vat Blue 20)
05/07/2008	CN101173110A Method for producing reduction olive T(C.I. Vat Biack 25)
11/2007
11/29/2007	US20070271712 Process for Dyeing Cellulosic Fibre Materials With at Least Two Vat Dyes
09/2007
09/11/2007	US7267744 Pulp treatment and process
01/2007
01/03/2007	CN1887389A Making process of playing cards with lasting fragrance
12/2006
12/13/2006	CN1878906A Process for dyeing cellulosic fibre materials with at least two vat dyes
08/2006
08/16/2006	EP1689928A1 Process for dyeing cellulosic fibre materials with at least two vat dyes
05/2005
05/19/2005	WO2005045124A1 Process for dyeing cellulosic fibre materials with at least two vat dyes
05/2002
05/15/2002	CN1084770C Leuco vat dye prepns. in granular form
10/2001
10/17/2001	EP0906372B1 Leuco vat dye preparations in granular form
08/2001
08/16/2001	EP0764190B1 Tinting hydrogel materials with vat dyes
12/1999
12/28/1999	US6007587 Leuco vat dye preparations in granule form
07/1999
07/07/1999	CN1222175A Leuco vat dye prepns. in granular form
04/1999
04/07/1999	EP0906372A1 Leuco vat dye preparations in granular form
10/1998
10/21/1998	EP0764190A4 Tinting hydrogel materials with vat dyes
01/1998
01/02/1998	DE19624208A1 Leukoküpenfarbstoff-Präparationen in Granulatform Leuco vat dye preparations in granule form
12/1997
12/24/1997	WO1997048770A1 Leuco vat dye preparations in granular form
03/1997
03/26/1997	EP0764190A1 Tinting hydrogel materials with vat dyes
07/1996
07/09/1996	US5534038 Tinting hydrogel materials with vat dyes
12/1995
12/21/1995	WO1995034605A1 Tinting hydrogel materials with vat dyes
12/21/1995	CA2190153A1 Tinting hydrogel materials with vat dyes
11/1994
11/15/1994	US5364415 Color brighteners for hair dyes
09/1994
09/27/1994	US5350425 Method of reducing vat dyes and the process of dyeing fabrics therein
07/1992
07/14/1992	CA1305271C Photochromic articles
05/1992
05/12/1992	US5112360 Processes for dyeing keratinous fibres based on 5,6 dihydroxyindole or an indole derivative and at least one rare earth salt and compositions for implementation thereof
09/1990
09/26/1990	EP0389113A2 Acid-sensitive leuco dye polymeric films
09/06/1990	CA2010200A1 Acid-sensitive leuco dye polymeric films
04/1990
04/03/1990	US4913544 Windows, optical glass
12/1989
12/27/1989	EP0348280A1 Process for colouring keratinous fibres on the basis of 5,6-dihydroxy-indole or a derivative of indole and at least a salt of a rare-earth metal, and compositions for carrying out the process
11/1987
11/11/1987	EP0245020A2 Photochromic articles
12/1986
12/03/1986	EP0203776A2 Coloring-time controlling layer