Novel crystalline forms of optical brighteners
Bis-triazinyl-amino)-stilbene-disulfonic acid derivatives Patent #: 3951965
ApplicationNo. 06/094830 filed on 11/16/1979
US Classes:510/394, With nitrogen, oxygen, or sulfur containing optical brightener, ultraviolet absorber, antistatic, or fiber softening component252/301.23, Triazines252/301.34, Natural resin, cellulose, or derivatives containing252/301.35, Synthetic resin containing252/401, Amine, amide, azo, or nitrogen-base radical containing252/402, Sulphur organic compound containing252/403, Oxygen organic compound containing510/108, CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.)510/307, With oxygen, nitrogen, or sulfur containing optical brightener510/324, With nitrogen, oxygen, or sulfur containing optical brightener510/453, Inorganic phosphorus containing component510/475, Synthetic polymer or natural rubber (other than polyether, such as polyethylene glycol, alkylene oxide condensation products, etc.)510/494, Nitrogen attached directly or indirectly to the sulfoxy group by nonionic bonding544/193.2, Plural triazine rings containing544/83Triazine
ExaminersPrimary: Albrecht, Dennis L.
Attorney, Agent or Firm
International ClassesC11D 3/40 (20060101)
C11D 3/42 (20060101)
D06L 3/12 (20060101)
D06L 3/00 (20060101)
Foreign Application Priority Data1978-11-21 DE
AbstractBrighteners for detergents consisting of a mixture of 4,4'-bis-(2-morpholino-4-anilino-1,3,5-triazinylamino)-stilbene-2,2'-disul fonic acid-di-Na salt and from 5 to 50% by weight, calculated on said brightener, of another brightener of the formula ##STR1## in the above formula, M is an alkali metal cation, preferably sodium, X is a group of the formula --COR2 or --SO2 R3, R2 being C1 -C8 -alkyl and R3 being C1 -C5 -alkyl, C4 -C8 -cycloalkyl, phenyl or toluyl, Y is hydrogen or C1 -C5 -alkyl, A is C3 -C6 -alkylene, R1 is hydrogen, C1 -C5 -alkyl, C4 -C8 -cycloalkyl, or a group of the formula ##STR2## and Z is an anilino group, a chloroanilino group or a morpholino group. Said brightener mixtures are color-stable and do not show any green discoloration even after a prolonged storage in a moist atmosphere.