Claims
- 1. A bleaching composition consisting essentially of a peroxygen bleaching compound and as a peroxygen activator, a carboxylic-sulfonic anhydride of the formulae:
- R.sub.1 --(SO.sub.2 OC(O)--R.sub.2).sub.n and (R.sub.1 --SO.sub.2 OC(O)).sub.n --R.sub.2
- wherein n is an integer of 1 to 3; each of R.sub.1 and R.sub.2, which may be alike or different, is selected from the class consisting of a 1 to 3 valent hydrocarbon radical derived from an alkane of 1 to 16 carbon atoms, a cycloalkane of 3 to 7 carbon atoms and an arene of 6 to 12 aromatic carbon atoms while taken together R.sub.1 and R.sub.2 can complete an o-phenylene or an o-naphthalene ring, said hydrocarbon radicals optionally bearing 1 to 3 substituents selected from the class consisting of alkoxy of 1 to 16 carbon atoms on the arene, aliphatic carboxamido of 1 to 16 carbon atoms on the arene, alkyl of 1 to 16 carbon atoms on the arene, benzamido on the arene, nitro, chlorine, bromine and fluorine.
- 2. The composition according to claim 1 wherein the peroxygen compound is sodium perborate tetrahydrate.
- 3. A detergent composition consisting essentially of a detergen agent and the composition defined in claim 1.
- 4. The bleaching composition of claim 1, wherein the activator is selected from the class consisting of acetyl-p-toluenesulfonate, benzoyl-p-toluenesulfonate, terephthaloyl-bis(p-toluenesulfonate), isophthaloyl-bis(p-toluenesulfonate), isophthaloyl-bis(methanesulfonate), and o-sulfobenzoic anhdride.
- 5. A bleaching composition consisting essentially of a peroxygen bleaching compound, a carboxylic-sulfonic anhydride activator of the formulae:
- R.sub.1 --(SO.sub.2 OC(O)--R.sub.2).sub.n and (R.sub.1 --SO.sub.2 OC(O)).sub.n --R.sub.2
- wherein n is an integer of 1 to 3; each of R.sub.1 and R.sub.2, which may be alike or different, is selected from the class consisting of a 1 to 3 valent hydrocarbon radical derived from an alkane of 1 to 16 carbon atoms, a cycloalkane of 3 to 7 carbon atoms and an arene of 6 to 12 aromatic carbon atoms while taken together R.sub.1 and R.sub.2 can complete an o-phenylene or an o-napththalene ring, said hydrocarbon radicals optionally bearing 1 to 3 substituents selected from the class consisting of alkoxy of 1 to 16 carbon atoms on the arene, aliphatic carboxamido of 1 to 16 carbon atoms on the arene, alkyl of 1 to 16 carbon atoms on the arene, benzamido on the arene, nitro, chlorine, bromine and fluorine, and sufficient buffering agent to maintain a pH of about 6 to 12 when the bleaching composition is dissolved in water.
- 6. The bleaching composition of claim 5 wherein the mole ratio of peroxygen to activator is from about 20:1 to about 1:3.
- 7. A detergent composition consisting essentially of (a) from about 5% to about 50% by weight of the bleaching composition of claim 5; (b) from about 5% to about 50% by weight of a detergent agent; and (c) from about 1% to about 60% by weight of a detergency builder.
- 8. The detergent composition of claim 7 wherein the peroxygen is sodium perborate tetrahydrate and the activator is selected from the class consisting of acetyl-p-toluenesulfonate, benzoyl-p-toluenesulfonate, terephthaloyl-bis(p-toluenesulfonate), isophthaloyl-bis(p-toluenesulfonate), isophthaloyl-bis(methanesulfonate), and o-sulfobenzoic anhydride.
Parent Case Info
This application is a division of Ser. No. 838,902, filed Oct. 3, 1977, now U.S. Pat. No. 4,110,074, granted Aug. 29, 1978.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3969257 |
Murray |
Jul 1976 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
838902 |
Oct 1977 |
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