US5045223A — N-sulfonyloxaziridines as bleaching compounds

Claim 1

Independent Claim 135 words

A bleaching composition comprising: (i) from about 0.05 to about 10% of an oxygen transfer agent whose structure is: ##STR18## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, ##STR19## nitro, halo, cyano, alkoxy, keto, carboxylic, and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system; and (ii) from about 0.5 to 50% of a surfactant.

Claim 2

Dependent Claim 135 words

A bleaching composition comprising: (i) from about 0.05 to about 10% of an oxygen transfer agent whose structure is: ##STR18## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, ##STR19## nitro, halo, cyano, alkoxy, keto, carboxylic, and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system; and (ii) from about 0.5 to 50% of a surfactant.

Claim 3

Dependent Claim 20 words

A composition according to claim 1 further comprising from about 1 to about 60% by weight of a peroxygen compound.

Claim 4

Dependent Claim 37 words

A composition according to claim 2 wherein the peroxygen compound is present in an amount from about 1.5 to 25% and the oxygen transfer agent is present in an amount from about 0.2 to 5% by weight.

Claim 5

Dependent Claim 27 words

A composition according to claim 2 wherein the peroxygen compound is an inorganic material selected from the group consisting of perborate, percarbonate, perphosphate, persilicate and monopersulphate salts.

Claim 6

Dependent Claim 14 words

A composition according to claim 2 wherein the peroxygen compound is an organic peroxyacid.

Claim 7

Dependent Claim 24 words

A composition according to claim 5 wherein the organic peroxyacid is selected from the group consisting of peracetic acid, monoperoxyphthalic acid and diperoxydodecanedioic acid.

Claim 8

Dependent Claim 17 words

A composition according to claim 6 wherein the monoperoxyphthalic acid is present as a magnesium salt hexahydrate.

Claim 9

Dependent Claim 35 words

A composition according to claim 2 further comprising a bleach precursor present in an amount such that the molar ratio of bleach precursor relative to oxygen transfer agent ranges from about 250:1 to about 1:20.

Claim 10

Dependent Claim 17 words

A composition according to claim 1 further comprising from about 1 to 80% of a detergent builder.

Claim 11

Dependent Claim 29 words

A composition according to claim 1 further comprising an effective amount for cleaning of an enzyme selected from the group consisting of proteases, cellulases, lipases, amylases and mixtures thereof.

Claim 12

Dependent Claim 26 words

A composition according to claim 1 delivered in a form selected from the group consisting of a powder, sheet, pouch, tablet, aqueous liquid and non-aqueous liquid.

Claim 13

Dependent Claim 26 words

A composition according to claim 1 wherein at least one of R 1 , R 2 and R 3 is substituted with a water-solubilizing functional group.

Claim 14

Dependent Claim 31 words

A composition according to claim 12 wherein the water-solubilizing functional group is selected from the group consisting of carboxylic acid, phosphoric acid, phosphonic acid, sulfuric acid, sulphonic acid and salts thereof.

Claim 15

Dependent Claim 61 words

A composition according to claim 1 wherein said substituent on R 1 , R 2 and R 3 is a functional unit selected from the group consisting of nitro, halo, cyano, C 1 -C 20 alkyl, amino, aminoalkyl, thioalkyl, sulfoxyalkyl, carboxyester, hydroxy, C 1 -C 20 alkoxy, polyalkoxy, C 1 -C 40 quaternary di- or tri-alkylammonium functional units and mixtures thereof.

Claim 16

Dependent Claim 16 words

A composition according to claim 14 wherein said quaternary alkylammonium functional unit is a cholyl group.

Claim 17

Dependent Claim 13 words

A composition according to claim 1 wherein the oxygen transfer agent is 2-benzenesulfonyl-3-phenyloxaziridine.

Claim 18

Dependent Claim 13 words

A composition according to claim 1 wherein the oxygen transfer agent is 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridine.

Claim 19

Dependent Claim 13 words

A composition according to claim 1 wherein the oxygen transfer agent is 2-(4-chlorobenzenesulfonyl)-3-(4-chlorophenyl)oxaziridine.

Claim 20

Dependent Claim 13 words

A composition according to claim 1 wherein the oxygen transfer agent is 2-benzenesulfonyl-3-(4-methylsulfonylphenyl)oxaziridine.

Claim 21

Dependent Claim 14 words

A composition according to claim 1 wherein the oxygen transfer agent is 3-butyl-1,2-benzisothiazole-1,1-dioxide Oxide.

Claim 22

Dependent Claim 13 words

A composition according to claim 1 wherein the oxygen transfer agent is 2-benzenesulfonyl-3-(3-pyridinyl)oxaziridine.

Claim 23

Independent Claim 132 words

A method for bleaching a stained substrate, said method comprising contacting said stained substrate in an aqueous medium with an oxygen transfer agent whose structure is: ##STR20## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloakyl, ##STR21## nitro, halo, cyano, alkoxy, keto, carboxylic and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system.

Claim 24

Independent Claim 132 words

A method for bleaching a stained substrate, said method comprising contacting said stained substrate in an aqueous medium with an oxygen transfer agent whose structure is: ##STR20## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloakyl, ##STR21## nitro, halo, cyano, alkoxy, keto, carboxylic and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system.

Claim 25

Dependent Claim 32 words

A method according to claim 22 wherein the aqueous medium further comprises a peroxygen compound and the molar ratio of peroxygen compound to oxygen transfer agent ranges from about 1500:1 to 1:2.

Claim 26

Dependent Claim 34 words

A method according to claim 23 wherein the aqueous medium further comprises a bleach precursor and the molar ratio of a bleach precursor to oxygen transfer agent ranges from about 250:1 to about 1:20.

Claim 27

Independent Claim 172 words

A method for bleaching a stained substrate, said method comprising contacting said stained substrate in an aqueous medium with a surfactant and with an oxygen transfer agent whose structure is: ##STR22## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, ##STR23## nitro, halo, cyano, alkoxy, keto, carboxylic and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system; and said contacting occurring in said medium containing surfactant of about 0.05 to 1.0 grams per liter and oxygen oxygen transfer agent in an amount of about 0.01 to about 300 ppm per liter of medium.

Claim 28

Independent Claim 172 words

A method for bleaching a stained substrate, said method comprising contacting said stained substrate in an aqueous medium with a surfactant and with an oxygen transfer agent whose structure is: ##STR22## wherein: R 1 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R 2 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, ##STR23## nitro, halo, cyano, alkoxy, keto, carboxylic and carboalkoxy radicals; R 3 may be a substituted or unsubstituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, and cyano radicals; R 1 with R 2 and R 2 with R 3 may respectively together form a cycloalkyl, heterocyclic, and aromatic ring system; and said contacting occurring in said medium containing surfactant of about 0.05 to 1.0 grams per liter and oxygen oxygen transfer agent in an amount of about 0.01 to about 300 ppm per liter of medium.

Claim 29

Dependent Claim 43 words

A method according to claim 25 wherein said liquid medium comprises surfactant in an amount from about 0.15 to about 0.40 grams per liter and oxygen transfer agent in an amount of from about 5 to about 100 ppm per liter of medium.

Claim 30

Dependent Claim 42 words

A method according to claim 24 wherein the molar ratio of peroxygen compound to oxygen transfer agent ranges from about 150:1 to about 1:1 and the molar ratio of bleach precursor to oxygen transfer agent ranges from about 100:1 to about 1:1.

Claim 31

Dependent Claim 21 words

A method according to claim 22 wherein said substrate is selected from the group consisting of fabrics, household fixtures and tableware.

Claim 32

Dependent Claim 12 words

A method according to claim 22 wherein said substrate is a denture.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1994-09-02	1995-03-04	1995-09-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1998-09-02	1999-03-04	1999-09-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2002-09-02	2003-03-04	2003-09-03	$7700.00	Window Closed / Lapsed

N-sulfonyloxaziridines as bleaching compounds

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