Claims
- 1. A bleach precursor compound having the formula: ##STR16## wherein: R.sub.1, R.sub.2 and R.sub.3 are each a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, alkaryl, aryl, phenyl, hydroxyalkyl, polyoxyalkylene, and R.sub.4 OCOL;
- or two or more of R.sub.1, R.sub.2, and R.sub.3 together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- or at least one of R.sub.1, R.sub.2, and R.sub.3 is attached to R.sub.4 to form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- R.sub.4 is selected from a bridging group consisting of alkylene, cycloalkylene, alkylenephenylene, phenylene, arylene, and polyalkoxylene; and wherein the bridging group can be unsubstituted or substituted with C.sub.1 -C.sub.20 atoms selected from alkyl, alkenyl, benzyl, phenyl and aryl radicals;
- Z.sup.- is a monovalent or multivalent anion leading to charge neutrality when combined with Q.sup.+ in the appropriate ratio and wherein Z.sup.- is sufficiently oxidatively stable not to interfere significantly with bleaching by a peroxy carbonic acid;
- Q is nitrogen or phosphorous; and
- L is selected from the group consisting of: ##STR17## wherein R.sub.5 and R.sub.6 are a C.sub.1 -C.sub.12 alkyl group, and Y is H.
- 2. The precursor of claim 1 wherein Q is nitrogen and R.sub.1, R.sub.2 and R.sub.3 are each the same or different and selected from C.sub.1 -C.sub.20 atom radicals selected from the group consisting of alkyl, alkylaryl, benzyl, hydroxyalkyl, and heterocyclic rings containing the quaternary nitrogen where R.sub.1 and R.sub.4 or R.sub.1 and R.sub.2 are joined together, and mixtures of groups thereof.
- 3. The precursor of claim 2 wherein R.sub.1 is selected from short-chain C.sub.1 -C.sub.4 alkyl radicals.
- 4. The precursor of claim 3 wherein R.sub.2 and R.sub.3 are each a longer chain C.sub.7 -C.sub.20 alkyl or alkylaryl radical.
- 5. The precursor of claim 4 wherein said longer chain radical is selected from the group consisting of benzyl, lauryl and stearyl groups.
- 6. The precursor of claim 1 wherein R.sub.4 is selected from a bridging group consisting of C.sub.2 -C.sub.20 alkylene, C.sub.6 -C.sub.12 phenylene, C.sub.5 -C.sub.20 cycloalkylene, and C.sub.8 -C.sub.20 alkylphenylene groups.
- 7. The precursor of claim 6 wherein the R.sub.4 bridging group is a C.sub.2 -C.sub.6 alkylene or C.sub.6 -C.sub.12 phenylene group.
- 8. The precursor of claim 2 wherein said heterocyclic ring is selected from pyridine, morpholine, pyrrolidone, piperidine and piperazine.
- 9. A bleaching-detergent composition comprising:
- (i) from 1 to 60% of a peroxygen compound capable of yielding hydrogen peroxide in an aqueous solution;
- (ii) from 0.1 to 40% of a bleach precursor having the formula: ##STR18## wherein: R.sub.1, R.sub.2 and R.sub.3 are each a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, alkaryl, aryl, phenyl, hydroxyalkyl, polyoxyalkylene, and R.sub.4 OCOL;
- or two or more of, R.sub.1, R.sub.2, and R.sub.3 together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- or at least one of R.sub.1, R.sub.2, and R.sub.3 is attached to R.sub.4 to form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- R.sub.4 is selected from a bridging group consisting of alkylene, cycloalkylene, alkylenephenylene, phenylene, arylene, and polyalkoxylene; and wherein the bridging group can be unsubstituted or substituted with C.sub.1 -C.sub.20 atoms selected from alkyl, alkenyl, benzyl, phenyl and aryl radicals;
- Z.sup.- is a monovalent or multivalent anion leading to charge neutrality when combined with Q.sup.+ in the appropriate ratio and wherein Z.sup.- is sufficiently oxidatively stable not to interfere significantly with bleaching by a peroxy carbonic acid;
- Q is nitrogen or phosphorous; and
- L is a leaving group selected from the group consisting of: ##STR19## wherein R.sub.5 and R.sub.6 are a C.sub.1 -C.sub.2 alkyl group, and Y is H;
- (iii) from 0 to 50% of a surfactant selected from the group consisting of nonionic, anionic, amphoteric and surface active mixtures thereof; and
- (iv) from 0 to 80% of a detergent builder.
- 10. The composition of claim 9 wherein the surfactant ranges from 4 to 50% and the detergent builder ranges from 5 to 70% by weight.
- 11. The composition of claim 9 wherein Q is nitrogen and R.sub.1, R.sub.2 and R.sub.3 are each the same or different and selected from C.sub.1 -C.sub.20 atom radicals selected from the group consisting of alkyl, alkylaryl, benzyl, hydroxyalkyl, and heterocyclic rings containing the quaternary nitrogen where R.sub.1 and R.sub.4 or R.sub.1 and R.sub.2 are joined together, and mixtures of groups thereof.
- 12. The composition of claim 11 wherein R.sub.1 is selected from short-chain C.sub.1 -C.sub.4 alkyl radicals.
- 13. The composition of claim 12 wherein R.sub.2 and R.sub.3 are each a longer chain C.sub.7 -C.sub.20 alkyl or alkylaryl radical.
- 14. The composition of claim 13 wherein said longer chain radical is selected from the group consisting of benzyl, lauryl and stearyl groups.
- 15. The composition of claim 9 wherein R.sub.4 is selected from a bridging group consisting of C.sub.2 -C.sub.20 alkylene, C.sub.6 -C.sub.12 phenylene, C.sub.5 -C.sub.20 cycloalkylene, and C.sub.8 -C.sub.20 alkylphenylene groups.
- 16. The composition of claim 15 wherein the R.sub.4 bridging group is a C.sub.2 -C.sub.6 alkylene or C.sub.6 -C.sub.12 phenylene group.
- 17. The composition of claim 11 wherein said heterocyclic ring is selected from pyridine, morpholine, pyrrolidone, piperidine and piperazine.
- 18. A peroxy acid compound according to the formula: ##STR20## wherein: R.sub.1, R.sub.2 and R.sub.3 are each a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, alkaryl, aryl, phenyl, hydroxyalkyl, polyoxyalkylene, and mixtures thereof;
- or two or more of R.sub.1, R.sub.2, and R.sub.3 together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- or one of R.sub.1, R.sub.2 and R.sub.3 is attached to R.sub.4 to form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system;
- R.sub.4 is selected from a bridging group consisting of alkylene, cycloalkylene, alkylenephenylene, phenylene, arylene, and polyalkoxylene; and wherein the bridging group can be unsubstituted or substituted with C.sub.1 -C.sub.20 atom selected from alkyl, alkenyl, benzyl, phenyl and aryl radicals;
- Z.sup.- is a monovalent or multivalent anion leading to charge neutrality when combined with Q.sup.+ in the appropriate ratio and wherein Z.sup.- is sufficiently oxidatively stable not to interfere significantly with bleaching by a peroxy carbonic acid; and
- Q is nitrogen or phosphorous.
- 19. The peroxy acid of claim 18 wherein Q is nitrogen and R.sub.1, R.sub.2 and R.sub.3 are each the same or different and selected from C.sub.1 -C.sub.20 atom radicals selected from the group consisting of alkyl, alkylaryl, benzyl, hydroxyalkyl, and heterocyclic rings containing the quaternary nitrogen where R.sub.1 and R.sub.4 or R.sub.1 and R.sub.2 are joined together, and mixtures of groups thereof.
- 20. The peroxy acid of claim 19 wherein R.sub.1 is selected from short-chain C.sub.1 -C.sub.4 alkyl radicals.
- 21. The peroxy acid of claim 20 wherein R.sub.2 and R.sub.3 are each a longer chain C.sub.7 -C.sub.20 alkyl or alkylaryl radical.
- 22. The peroxy acid of claim 21 wherein said longer chain radical is selected from the group consisting of benzyl, lauryl and stearyl groups.
- 23. The peroxy acid of claim 18 wherein R.sub.4 is selected from a bridging group consisting of C.sub.2 -C.sub.20 alkylene, C.sub.6 -C.sub.12 phenylene, C.sub.5 -C.sub.20 cycloalkylene, and C.sub.8 -C.sub.20 alkylenephenylene groups.
- 24. The peroxy acid of claim 18 wherein the R.sub.4 bridging group is a C.sub.2 -C.sub.6 alkylene or C.sub.6 -C.sub.12 phenylene group.
- 25. The peroxy acid of claim 18 wherein said heterocyclic ring is selected from pyridine, morpholine, pyrrolidone, piperidine and piperazine.
- 26. The peroxy acid of claim 18 wherein the compound is sodium 2-(N,N,N-trimethylammonium)ethyl peroxycarbonic acid.
- 27. The peroxy acid of claim 18 wherein the compound is sodium 2-(N-benzyl-N,N-dimethylammonium)ethyl peroxycarbonate acid.
- 28. The peroxy acid of claim 18 wherein the compound is sodium 2-(N-butyl-N,N-dimethylammonium)ethyl peroxycarbonic acid.
- 29. The peroxy acid of claim 18 wherein the compound is sodium 2-[4-(N,N,N-trimethylammonium)phenyl]ethyl peroxycarbonic acid.
- 30. The peroxy acid of claim 18 wherein the compound is sodium 3-(1,1-dimethylpiperidinium)peroxycarbonic acid.
- 31. The peroxy acid of claim 18 wherein the compound is sodium 4-(1,1-dimethylpiperidinium)peroxycarbonic acid.
- 32. The peroxy acid of claim 18 wherein the compound is sodium 2-(N,N,N-trimethylammonium)ethyl peroxycarbonic acid.
- 33. The peroxy acid of claim 18 wherein the compound is sodium 2-(N-benzyl-N,N-dimethylammonium)ethyl peroxycarbonic acid.
- 34. An aqueous bleaching medium comprising a peroxy acid according to claim 18 present in an amount to deliver from about 0.1 to about 50 ppm of active oxygen per liter of medium, and 0.05 to 1.0 grams of a surfactant per liter of the medium.
- 35. An aqueous bleaching medium according to claim 34 wherein the peroxy acid is present in an amount to deliver from about 2 to 15 ppm of active oxygen per liter of the medium.
- 36. An aqueous bleaching medium according to claim 34 wherein the surfactant is present from about 0.15 to 0.20 grams per liter of the medium.
- 37. An aqueous bleaching medium according to claim 34 further comprising a builder from about 0.1 to 3.0 grams per liter of the medium.
- 38. An aqueous bleaching medium according to claim 34 wherein the surfactant is selected from the group consisting of nonionic, anionic, zwitterionic, amphoteric and surface active mixtures thereof.
- 39. A bleaching-detergent composition comprising:
- (i) from 0.1 to 40% of the peroxy acid of claim 18;
- (ii) from 0 to 50% of a surfactant; and
- (iii) from 0 to 80% of a detergent builder.
- 40. The composition of claim 39 wherein the surfactant ranges from 4 to 50% and the detergent builder ranges from 5 to 70% by weight.
- 41. The composition of claim 40 wherein the surfactant is selected from the group consisting of nonionic, anionic, cationic, amphoteric and surface active mixtures thereof.
Parent Case Info
This is a continuation of Ser. No. 027,278, filed Mar. 17, 1987, now U.S. Pat. No. 4,751,015, issued June 14, 1988.
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Continuations (1)
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Number |
Date |
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Parent |
27278 |
Mar 1987 |
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