Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...
Reexamination Certificate
2002-02-11
2008-09-16
Douyon, Lorna M. (Department: 1796)
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole,...
C008S107000, C008S116100, C008S190000, C252S008610, C252S008860, C252S008910
Reexamination Certificate
active
07425222
ABSTRACT:
A process for improving the sun protection factor (SPF) of cellulosic fibre materials and blends thereof, which comprises contacting said materials with at least one compound of the formula (1)in which M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; R1and R1′ independently of each other are hydrogen, hydroxy, optionally substituted alkyl, 4-morpholinyl, —NH—R3, —N(R3)2or —O—R3,wherein R3is optionally substituted alkyl or optionally substituted aryl, R2is a group of formula (2)wherein X is —O— or —NH— and R4is C1-C4-alkyl which carries at least one hydrophilic substituent and R2′ has the meaning of R1or R2.
REFERENCES:
patent: 4587195 (1986-05-01), Ishikawa et al.
patent: 5700295 (1997-12-01), Fuso et al.
patent: 5744599 (1998-04-01), Reinehr et al.
patent: 5810889 (1998-09-01), Kaufmann et al.
patent: 5888643 (1999-03-01), Aylward et al.
patent: 5938793 (1999-08-01), Reinert et al.
patent: 6143888 (2000-11-01), Rohringer et al.
patent: 6783698 (2004-08-01), Reinehr et al.
patent: 2003/0192137 (2003-10-01), Cuesta et al.
patent: 0728749 (1996-08-01), None
patent: 0922699 (1999-06-01), None
patent: 00/77290 (2000-12-01), None
patent: 02/08511 (2002-01-01), None
Deisenroth Ted
Donzé Jean-Jacques
Hauger Serge
Kramer Hans
Menge Ullrich
Ciba Specialty Chemicals Corp.
Stevenson Tyler A.
LandOfFree
Process for improving the sun protection factor of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for improving the sun protection factor of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving the sun protection factor of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3981446