Replacement Of Halogen By Amino Nitrogen Patents (Class 534/598)
  • 4-methyl-pyridone monoazo compound having both monochlorotriazinyl and vinylsulfone type fiber-reactive groups
    Patent number: 4618671
    Abstract: A pyridone compound of the following formula, or a salt thereof, ##STR1## wherein R.sub.1 and R.sub.2 are independently a hydrogen atom or a lower alkyl group having up to 4 carbon atoms, X is a hydrogen atom or a methyl or sulfo group, A is an unsubstituted or substituted phenylene or naphthylene group, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a group capable of being split by the action of an alkali. The compound is useful for dyeing or printing fiber materials to give a dyed product of a brilliant yellow color excellent in various fastness properties with good reproducibility.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: October 21, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yutaka Kayane, Tetsuya Miyamoto, Takashi Omura, Hirokazu Sawamoto, Naoki Harada, Akira Takeshita
  • Process for the preparation of amino-fluoro-s-triazine dyes by reaction of cyanuric fluoride with an amino dye and an amide in one operation
    Patent number: 4614818
    Abstract: A process for the preparation of dyes of the formula ##STR1## in which D is a dye radical and R.sub.1 and R.sub.2 independently of one another is hydrogen or C.sub.1-4 -alkyl, which comprises reacting cyanuric fluoride of the formula ##STR2## simultaneously with a dye of the formula ##STR3## and with an ammonium salt of an amine of the formulaH.sub.2 N--R.sub.2 (4)in a neutral to alkaline medium, to give dyes of the formula (1) as single compounds in good yields in one operation. The novel process has the advantage of being able to be carried out as a "one-pot process" in a closed reaction vessel so that the apparatus is simple and immission by cyanuric fluoride is excluded.
    Type: Grant
    Filed: January 18, 1983
    Date of Patent: September 30, 1986
    Assignee: Ciba Geigy Corporation
    Inventors: Rolf Deitz, Herbert Seiler
  • Disazo compounds for dyeing cellulosic fibers
    Patent number: 4542208
    Abstract: Water-soluble azo compounds which, in the free acid form, are represented by the formula: ##STR1## wherein one of X and Y is hydrogen and the other is --SO.sub.3 H; one of A and B is hydrogen and the other is --SO.sub.3 H; each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group or ureido group; and each of R.sub.5 and R.sub.6 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group, chlorine, hydroxyl group or carboxyl group, and a method for dyeing cellulose fibers, blended yarn fabrics of cellulose fibers with other kinds of fibers, particularly with polyester fibers, using the said compounds.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: September 17, 1985
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Junji Odani, Shigeyuki Watanabe