Back to results
US 5,478,356 AGranted
Cyanoamines and compositions useful for bleaching
AssigneeThe Clorox Company
InventorThomas W. Kaaret
Life of this patent
Estimating the term…
Abstract
Cyanoamine activators give excellent bleaching performance when combined with a peroxygen source and dissolved in solution. Activators include imides wherein each activator has two acyl groups attached to a common nitrogen and to a cyclic moiety, with the nitrogen being cyano substituted. The two acyl groups form intermediate peroxy groups in the presence of a peroxygen source in solution. Preferred activators include N-cyanophthalimide and N-cyanosuccinimide.
Claims29
A composition, useful for bleaching, comprising:
- (a) an activator compound, the activator compound having either of the following structures ##STR7## where R.sub.1 and R.sub.2 taken together with the carbon atoms to which they are attached form a ring containing 4 to 6 carbon atoms, whereby the carbon atoms in the ring may be singly or multiply substituted with hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkanoyl, phenyl, benzoyl, middle halogen, amino, amine salt, phosphate or phosphonate group, sulfate or sulfonate group, cyano or cyanoamino group, or with a cyclic group of 4 to 6 carbon atoms, or with a nitrogen-containing heterocyclic group of 4 to 6 atoms, or
- where R.sub.1 and R.sub.2 taken together with the carbon atoms to which they are attached form a heterocyclic ring containing 5 to 7 atoms containing one or two hetero atoms selected from the group consisting of O, S, and N--R.sub.7, where R.sub.7 is hydrogen or a C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkanoyl, C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, phenyl, benzoyl, middle halogen, amino, amine salt, phosphate or phosphonate group, sulfate or sulfonate group, cyano or cyanoamino group, and
- where R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are the same or different and independently represent hydrogen, C.sub.1 -C.sub.20 alkyl (straight chain, branched chain, or cycloalkyl), C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkanoyl, C.sub.1 -C.sub.20 ethoxylate or propoxylate, phenyl, benzoyl, C.sub.7 -C.sub.20 aralkyl, alkenylcyanoamino;
- or
- where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are the same or different and independently represent hydrogen, C.sub.1 -C.sub.20 alkyl (straight chain, branched chain, or cycloalkyl), C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkanoyl, C.sub.1 -C.sub.20 ethoxylate or propoxylate, phenyl, benzoyl, C.sub.7 -C.sub.20 aralkyl, alkenylcyanoamino, or a polyalkenylamino of the type ##STR8## where n=1 or 2 and X is 1-10 and R.sub.8 is hydrogen or cyano, a Group IA metal, or any of the foregoing radicals containing a substitutable carbon atom on which is substituted a C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkanoyl, middle halogen, amino or an amine salt, carboxylate, phosphate or phosphonate group, sulfate or sulfonate group, cyano, cyanoamino or hydroxyl group;
- and,
- (b) a peroxygen source in a sufficient amount to form an oxidizing agent derivative of the activator compound when the peroxygen source and the activator are in a solvent therefor.
4 more elements
A composition, useful for bleaching, comprising:
- (a) an activator compound, the activator compound having the structure ##STR9## where R.sub.1 and R.sub.2 taken together with the carbon atoms to which they are attached form an aromatic ring containing 4 to 6 carbon atoms, whereby the carbon atoms in the ring may be singly or multiply substituted with hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkanoyl, phenyl, benzoyl, middle halogen, amino, amine salt, phosphate or phosphonate group, sulfate or sulfonate group, cyano or cyanoamino group, or with a cyclic group of 4 to 6 carbon atoms, or with a nitrogen-containing heterocyclic group of 4 to 6 atoms, or
- where R.sub.1 and R.sub.2 taken together with the carbon atoms to which they are attached form an aromatic heterocyclic ring containing 5 to 7 atoms containing one or two hetero atoms selected from the group consisting of O, S, and N--R.sub.7, where R.sub.7 is hydrogen or a C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkanoyl, C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, phenyl, benzoyl, middle halogen, amino, amine salt, phosphate or phosphonate group, sulfate or sulfonate group, cyano or cyanoamino group, and
- where R.sub.1 and R.sub.2 are the same or different and independently represent hydrogen, C.sub.1 -C.sub.20 alkyl (straight chain, branched chain, or cycloalkyl), C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkanoyl, C.sub.1 -C.sub.20 ethoxylate or propoxylate, phenyl, benzoyl, C.sub.7 -C.sub.20 aralkyl, alkenylcyanoamino, or a polyalkenylamino of the type ##STR10## where n=1 or 2 and X is 1-10 and R.sub.8 is hydrogen or cyano, a Group IA metal, or any of the foregoing radicals containing a substitutable carbon atom on which is substituted a C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkanoyl, middle halogen, amino or an amine salt, carboxylate, phosphate or phosphonate group, sulfate or sulfonate group, cyano, cyanoamino or hydroxyl group;
- and,
- (b) a peroxygen source in a sufficient amount to form an oxidizing agent derivative of the activator compound when the peroxygen source and the activator are in a solvent therefor.
2 more elements
Dependencies are inferred from the claim text.