MXPA99007516A - Bleaching and cleaning compositions containing fragrances - Google Patents

Abstract

The present invention is directed to a stable fragrant bleaching block which comprises:(a) a bleaching agent having a reduction potential from about -0.7 v to about +0.4 v and (b) an organoleptic effective amount of a fragrant agent which (i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) is not substantially hygroscopic. This invention also pertains to methods for making and employing the stable fragranced bleaching block.

Description

BLANKING AND LITIGATION COMPOSITIONS MPI EZA CONTAINING FRAGRANCES FIELD OF THE INVENTION The present invention is directed to a bleaching block configured to contain a stable fragrant agent. The fragrant, stable bleaching block comprises (a) a bleaching agent having a reduction potential from about -0.7v to about + 0.4v compared to an Ag / AgCl electrode; and (b) an effective organoleptic amount of a fragrant agent, which, (i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) is not substantially hygroscopic. The invention also pertains to methods for making and employing the bleach block with stable fragrance.

Description of the background Odor is that property of a substance that makes it perceptible to the sense of smell. Specifically, the smell is that property that is manifested by a physiological sensation caused by the contact of the molecules of a substance with the olfactory nervous system. Although it is believed that molecular structure influences odor, there is little correlation, at present, between odor and molecular structure. The modification of the smell is the intentional change of an odor by the addition of another. The importance of odor modification is its usefulness as an odor control method. Flavors, perfumes and Industrial deodorants are examples of odor modifiers. Perfumers use the principles of smell modification when creating fragrances. Thus, odor modification refers specifically to the use of fragrance materials for odor control. Many odorous and non-odorous chemicals are used to control odors, but only those that work essentially by altering the way the nose perceives character and intensity are true odor modifiers. A problem in the field of odor modification is in the area of perfumed bleaching compositions. Due to the inherent ability of a bleaching agent to destroy odors, it is difficult to effectively perfume a bleaching composition, so that the perfume remains stable during storage and is available for effective delivery without being altered or destroyed by the bleach. Bleaching agents are materials that brighten or whiten a substrate through chemical action and clean substrates, for example, textiles, by removing dirt. This action may involve either oxidative or reductive processes that make the colored bodies in the substrate more soluble and more easily removed during processing. Color-producing agents in fibers are often organic compounds that contain conjugated chains, that is, single and double alternating ligatures, called chromophores. Discoloration can often be achieved by destroying one or more of the double bonds in the conjugated systems, such as by adding to, or cutting, the double bond.

Bleaching agents can be classified into three categories: bleaching agents containing chlorine, peroxygen compounds and reducing bleach. Three classes of chlorine-containing compounds used as bleaching agents are: chlorine, hypochlorites and N-chlorine compounds, and chlorite and chlorine dioxide. The first two classes, called available chlorine compounds, produce hypochlorous acid and hypochlorite anion in bleaching baths. The peroxygen or active oxygen compounds contain a peroxide bond (-O-O-), in which an oxygen atom is active, such as hydrogen peroxide. Reducing agents generally used for bleaching include sulfur dioxide, sulfurous acid, bisulfites, sulfites, hydrosulfites (dithionites), sodium formaldehyde sulfoxylate, and sodium borohydride. U.S. Patent No. No. 4,663,068 (Hagemann et al.) Discloses a deodorant perfume, stable to bleach, stable in the presence of sodium perborate tetrahydrate and N, N, N ', N'-tetraacetyl ethylenediamine. Specifically, Hagemann et al. discloses a detergent powder product suitable for use in fabric washing, which comprises (i) from 5 to 40% by weight of detergent non-soap active compound comprising an active anionic detergent compound; (ii) from 1 to 90% by weight of a non-soap detergent; (iii) from 1 to 30% by weight of peroxy bleach compound together with an activator; (iv) from 0.2 to 5% by weight of a stable perfume to bleach, which comprises from 50 to 1 00% by weight of bleach stable deodorant perfume components having a Lipoxidase inhibitory capacity of at least 50% or a from Raoult variation of at least 1 .1. The components were assigned to one of the following six classes: Class 1: phenolic substances; Class 2: essential oils, extracts, resins and synthetic oils; Class 3: aldehydes and ketones; Class 4: nitrogen-containing compounds; Class 5: esters; Class 6: alcohols and ethers. The components are selected so that: (a) the deodorant perfume stable to bleach contains at least five different components; and (b) the bleach stable deodorant perfume contains components of at least four of the six classes. U.S. Patent No. No. 4,579,677 (Hooper et al.) Discloses a deodorant product having a deodorizing value from 0.50 to 3.5 as measured by the Deodorant Value Test. Specifically, Hooper et al. describe a deodorant product suitable for application to different surfaces of human skin, said product comprising (i) from 0.1 to 50% by weight of a bleaching agent; and (ii) from 0.1 to 20% by weight of a deodorant composition comprising from 45 to 100% by weight deodorant active components, the components having a Lipoxidase inhibitory capacity of at least 50% or a Roaoult variation rate of at least 50% by weight. minus 1 .1. The components are classified in the following six classes: Class 1: phenolic substances; Class 2: essential oils, extracts, resins and synthetic oils; Class 3: aldehydes and ketones; Class 4: polycyclic compounds; Class 5: esters; Class 6: alcohols. The components are selected so that (a) the deodorant composition contains at least five components of the which at least one must be selected from each of Class 1, Class 2 and Class 4; and (b) the deodorant composition contains components of at least four of the six classes.

Brief description of the invention The present invention relates to a configured fragrant bleach block and methods for making and using the block. In general, a fragrant bleach block is made and used by mixing an effective organoleptic amount of a fragrant agent with a bleaching agent and the other ingredients of the final desired composition and compression molding, melt casting, or extrusion of the composition for form a block. The configured fragrant bleach block comprises: (a) a bleaching agent having a reduction potential from about -0.7v to about + 0.4v compared to an Ag / AgCl electrode; and (b) an effective organoleptic amount of a fragrant agent, which (i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) is not substantially hygroscopic. In a preferred embodiment, the present invention relates to a method for making shaped fragrance bleach blocks and, in particular, urinary blocks. The fragranced bleach blocks set can be produced, for example, by (a) mixing the bleaching agent and fragrant agent and the other desired components and placing the mixture in a mold of a predetermined size and shape; (b) compress the mold for a period and at a pressure sufficient to produce a bleach block with solid fragrance; and (c) recovering the solid shaped fragrance bleach block from the mold. Another example of a method for producing the configured fragrance blocking blocks of this invention comprises (a) mixing the aforementioned composition and extruding a partial melting or melting of the mixture in a mold of the predetermined size and shape; (b) cooling the mold to solidify the fragrance whitening block, configured; and (c) recovering the bleaching block with fragrance, formed solid from the mold. To achieve a partial melting or melting according to the present invention, the composition mixture is heated for a sufficient time to melt or partially melt the amount of composition mixture placed in the oil bath. Methods for cleaning are also provided in this invention., reduce or retard bacterial, fungal and algal growth and control the biofilm. According to the method of this invention, a bleach block with shaped fragrance of this invention is placed in a toilet device for a sufficient time to reduce or retard the growth of bacteria, fungi or algae in the toilet device. In a preferred embodiment, the growth of bacteria, fungi and algae in a toilet bowl or urinal is reduced or delayed by placing a urinal block in a toilet device. The block can be placed in the tank or under the edge of the device. As used herein, a toilet device includes, for example, toilets and urinals.

DETAILED DESCRIPTION OF THE INVENTION In accordance with the present invention, applicants have discovered that stable fragrant bleaching compositions can be prepared having improved properties over conventional bleach compositions. The bleaching compositions comprise a bleaching agent having a reduction potential of from about -0.7v to about + 0.4v compared to an Ag / AgCl electrode, and a fragrant agent, which (i) must be stable to the bleaching agent, (ii) ) must not decompose the bleaching agent, and (iii) it must not be hygroscopic. Stable fragrant bleaching compositions can be prepared using a wide variety of components. This invention also pertains to methods for making and employing stable fragrant bleaching compounds. The following terms are used throughout the specification and are defined as follows unless otherwise indicated. The term "halogen" as used herein, refers to chemically related elements consisting of chlorine and bromine. The term "lower alkyl" as used herein means branched or unbranched hydrocarbon radicals containing from 1 to 12 carbon atoms, preferably from 1 to 6 atoms. Nonlimiting examples of branched and unbranched lower alkyl groups having from 1 to 1 2 carbon atoms are methyl, ethyl, n-propyl, i-propyl, n-butyl, sec-butyl, tert-butyl, n-pentyl, sec-pentyl, tert-pentyl and the like. The terms "odor", "fragrance", and "aroma" as used herein, are used interchangeably whenever a compound is referred to as an organoleptic, which is intended to stimulate the sense of smell. The term "organoleptic" as used herein, refers to compounds of the invention which stimulate the sense of smell and, thus, are perceived to have a characteristic odor. The term "effective organoleptic amount" as used herein, refers to a level or amount of fragrant agent (s) present in a composition in which the incorporated agent (s) exhibits a sensory effect. The term "not substantially hygroscopic" as used herein, refers to a compound, such as a fragrant agent, which does not have the property to adsorb substantial moisture from the air. The fragrant agents of the present invention, which are not substantially hygroscopic and do not adsorb substantial moisture from the air, can adsorb up to about 3%, preferably up to about 2%, more preferably up to about 1%, and most preferably up to about 0.5% in weigh. The term "shaped fragrance bleach block" as used herein, refers to a solid product having a predetermined shape, which is hard, organoleptic, shape-retentive, and dust-free.

The bleaching agents which can be employed in the present invention can be selected from a wide variety of compounds. Suitable bleaching agents, which may be employed, have a reduction potential from about -0.7v to about + 0.4v, preferably from about -0.4v to about + 0.2v, more preferably from about -0.2v to about + 0.1 v, and most preferably about -0.2v, compared to an Ag / AgCl reference electrode. Preferably, the bleaching agent is selected from the group consisting of bleaching agents containing chlorine, peroxygen compounds, and reducing bleach. The bleach components containing chlorine can be selected from the group consisting of chlorine, hypochlorites and N-chlorine compounds, and chlorite and chlorine dioxide. In a preferred embodiment, the bleaching agent is a halogenated hydantoin (halohydantoin). The structure of some normal halogenated hydantoins is discussed below.

X Y 1, 3-dichloro-5,5-dimethylhydantoin (DCDMH) Cl Cl 1 -bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) Br Cl 1, 3-dibromo-5,5-dimethylhydantoin (DBDMH) Br Br where R is methyl. Halogenated hydantoins include, but are not limited to, N-monohalogenated hydantoins, such as, N-chloro-5,5-dimethylhydantoin (MCDMH) and N-bromo-5,5-dimethylhydantoin (MBDMH), and dihalogenated hydantoins, such as, 1,3-dichloro-5,5-dimethylhydantoin (DCDMH), 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), and 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) . The halogenated methyl ethyl hydantoins can also be employed such as, N-chloro-5-methyl-5-ethylhydantoin (MCMEH), 1,3-dichloro-5-methyl-5-ethylhydantoin (DCMEH), N-bromo-5-methyl -5-ethylhydantoin (MBMEH), 1,3-dichloro-5-methyl-5-ethylhydantoin (DCMEH), N-bromo-5-methyl-5-ethylhydantoin (MBMEH), 1,3-dibromo-5-methyl- 5-ethylhydantoin (DBMEH), and 1-bromo-3-chloro-5-methyl-5-ethylhydantoin (BCMEH). The alkyl substitution is not limited to methyl and ethyl, but also includes mixtures of lower alkyl of C-t to C 12 isomers. Preferably, the bleaching agent is selected from the group consisting of 1,3-dichloro-5,5-dimethylhydantoin and 1-bromo-3-chloro-5,5-dimethylhydantoin, and more preferably the bleaching agent is 1, 3- dichloro-5, 5-dimethylhydantoin. The term "reduction" refers to a chemical reaction in which the hydrogen is combined with another substance or in which oxygen is removed from a substance. More generally, the term "reduction" refers to a chemical change in which, the valence state of an atom of an element is diminished as a result of the gain of one or more electrons. The standard hydrogen electrode provides the reference for all oxidation-reduction systems.

The half of the hydrogen cell or hydrogen electrode is defined as follows.

H + (ac) + e = 1/2 H2 (g) By definition, the potential of this system is zero (E ° = 0.000V) at all temperatures when an inert metal electrode is immersed in a hydrogen ion solution of unit activity, ie, pH = 0, in gas equilibrium hydrogen at an atmosphere of pressure. The potential of all the electrodes is then referred to this defined zero. The absolute potential of other electrodes can be either greater or smaller, and in this way, can be positive or negative relative to the potential of the standard hydrogen electrode. The reduction potential of some normal halogenated hydantoins is discussed below.

Halogenated hydantoin Cyclic voltammetry (CV) Peak potentials: Bromodimethylhydantoin (M BDMH) + 0.2v Chlorodimethylhydantoin (MCDMH) -0.7v Dibromodimethylhydantoin (DBDMH) +0.1 v, + 0.4v Dichlorodimethylhydantoin (DCDMH) -0.2v The electrode of the reference literature is Ag / AgCI; the reference literature reports Cl2 as + 1 36v and Br2 as + 1 .08v.

Other brominated and chlorinated oxidizing materials include, but are not limited to, the alkali metal salts of dihalocyanurates, such as, sodium dichloroisocyanurate, trichlorocyanuric acid, various halogenated glycolurils, and halogenated aromatic sulfonamides, such as, chloramine T, chloramine B and halogenated sulphamates. A particularly preferred bleaching agent is Dantochior® RW, a mixture of 1,3-dichloro-5,5-dimethylhydantoin and 1,3-dichloro-5,5-diethylhydantoin. Dantochior® RW is used as an auxiliary in the control of bacterial silts, fungi and algae in evaporator condensers, recirculating cooling tower systems, in-flow systems, such as flow through filters, lagoons, industrial wet cleaning systems, and brewery pasteurizers. Dantochior® RW is also used as an antimicrobial for pulp and for the manufacture of non-food grades of paper and board and for enhanced oil recovery. Dantochior® RW is a proprietary hydantoin derivative in the form of a briquette and functions as a microbicide through the controlled release of active chlorine. The fragrant agents, which can be employed in the present invention, can be selected from a wide variety of compounds. Suitable fragrant agents, which may be employed, (i) are stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) are not substantially hygroscopic. Fragrant agents, which are considered to be stable to the bleaching agent and do not decompose the bleaching agent, are those fragrant agents, which have a "C" odor value or better as it is defined in Table 1. In another embodiment, the fragrant agents, which are considered to be stable to the bleaching agent and do not decompose the bleaching agent, are those fragrant agents which have an odor value of "B" or better as defined in Table 1. In a preferred embodiment, the fragrant agent (i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (ii) is not substantially hygroscopic, with the proviso that the fragrant agent is not an essential oil, extract, resin or synthetic oil. In another preferred embodiment, the fragrant agent (i) is stable to the bleaching agent, (ii) it does not decompose the bleaching agent, and (iii) it is not substantially hygroscopic, with the proviso that the fragrant agent is not a polycyclic compound. Preferably, the fragrant agent has an odor value of C or better. More preferably, the fragrant has an odor value of C or better and is selected from the group consisting of isoamyl phenyl ether (commercially available under the tradename "Anther" from PPF Norda, East Hanover, New Jersey), isoborneol, isoborneol methyl ether, 2,2-dimethylbicyclo [2.2.1] heptane-3-carboxylic acid, methyl ester (commercially available under the trade name "Cistulate" from Naarden International, New York, New York), 2-pentyl tertiary cyclohexanyl acetate (commercially available under the trade name "Coniferan" from International Fragrances &Flavors, Union Beach, New Jersey ), 7-octen-2-ol-2,6-dimethyl acetate (commercially available under the tradename "Dihydro Myrcenyl Acétate" from Quest International Fragrances Company, Mount Olive, New Jersey), acetate 1 - . 1-methyl-4-isopropyl cyclohexan-8-yl (commercially available under the tradename "Dihydro Terpinyl Acétate" from International Fragrances &Flavors, Union Beach, New Jersey), tetrahydrogeraniol, 2,6-dimethylheptane-2- ol (commercially available under the tradename "Dimetol" from Givaudan, Clifton, New Jersey), diphenyl methane (commercially available from Elan Chemical Company Incorporated, Newark, New Jersey), diphenyl oxide diphenyl ether (commercially available from Polarome Manufacturing Company, I ncorporated, Jersey City, New Jersey), eucalyptol (commercially available from Ungerer &Company, Lincoln Park, New Jersey), alpha-phenol acetate (commercially available from Citrus &Allied Essences Ltd. Floral Park, New Jersey), 1,3-dioxan-2,4,6-trimethyl-4-phenyl (commercially available under the tradename "Floropal" from Haarmann &Rei er Corp., Springfield, New Jersey), 4-methyl-2- (2 -methylpropyl) tetrahydro-2H-prian-4-ol (eat commercially available under the trade name "Florosa (Q)" from Quest International Fragrances Company, Mount Olive, New Jersey), ethyl tricyclo [5.2.1 .02,6] decan-2-carboxylate (commercially available under the trade name " Fruitate "by KAO Corporation, Tokyo, Japan), 2-methyldocanonitrile (commercially available under the tradename" Furtonile "from Quest Iternational Fragrances Company, Mount Olive, New Jersey), 2-butyl-4,4,6-trimethyl- 1,3-dioxane (commercially available under the tradename "Herboxane" from Quest I nternational Fragrances Company, Mount Olive, New Jersey), 2-butyl-4,4,6-trimethyl-1,3-dioxane (commercially available from Roure Betrand Dupont, Inc., Teaneck, New Jersey), limetol (commercially available from Quest International Fragrances Company, Mount Olive, New Jersey), 3, 12-tridecadiene nitrile (commercially available under the trade name "Mandaril" from Haarmann &Reimer Corp., Springfield, New Jersey), methyl ketone ketone (commercially available from International Fragrances &Flavors, Union Beach, New Jersey), octanal dimethyl acetal (commercially available under the trade name "Octacetal" from International Fragrances &Flavors, Union Beach, New Jersey), orange blossom ether (commercially available from International Fragrances &; Flavors, Union Beach, New Jersey), tertiary butyl cyclohexanol (commercially available under the tradename "Patchone" from International Fragrances &Flavors, Union Beach, New Jersey), benzene pentanol, gamma-methyl (commercially available under the trade name "Phenoxanol" by International Fragrances &Flavors, Union Beach, New Jersey), 3-octanol (commercially available under the tradename "Tetrahydroalloocimenol" from Union Camp Corporation, Jacksonville, Florida), 3,7-dimethyl-3 -octanol (commercially available under the tradename "Tetrahydrolinalool" from Givaudan, Clifton, New Jersey), 2,6-dimethyl-2-octanol (commercially available under the tradename "Tetrahydromyrcenol" from SCM Glidco Organics Corp., Jacksonville, Florida) ), thymyl methyl ether, ortho-tertiary butyl cyclohexanyl acetate (commercially available under the trade name "Verdox" from International Fragrances &Flavors, Union Beach, New Jersey), ben Ceno, 2- (1-ethoxyethoxy) eti 1- 1 -ethoxy- 1 - (2-f in i letoxy) eta not (commercially available under the trade name "Vertocinth" from Bush Boake Alien, I nc., Montvale, New Jersey), cyclohexyl phenyl ethyl ether (commercially available under the tradename "Phenafleur" from International Fragrances &Flavors, Union Beach, New Jersey), 1- (4-isopropylcyclohexyl) ethanol (commercially available under the tradename "Mugetanol" from Haarmann &Reimer Corp. , Springfield, New Jersey), and bicyclo [2.2.1] heptan-2-ethyl-5- (o-6-methoxytricyclo [2.2.1 .0.2.6] heptane, 1-ethyl-3-methoxy (commercially available under the trade name "Neoproxen" by International Fragrances &Flavors, Union Beach, New Jersey.) More preferably, the fragrant agent comprises a mixture of two members selected from the group consisting of isoamyl phenyl ether, isoborneol, soborneol methyl ether, acid 2,2-dimethylbicyclo [2.2.1] heptan-3-carboxylic acid, methyl ether, tertiary 2-pentyl-cyclohexanyl acetate, 7-octen-2-ol-2,6-dimethyl acetate, 1-methyl-4-acetate -sopropylcyclohexan-8-yl, tetrahydrogeraniol, 2,6-dimethylheptan-2-ol, diphenyl methane, diphenyl oxide, eucalyptol, acet alpha-phenol, 1,3-dioxan-2,4,6-trimethyl-4-phenyl, 4-methyl-2- (2-methylpropyl) tetrahydro-2H-pyran-4-ol, tricyclo [5.2.1] .02.6] ethyl decan-2-carboxylate, 2-methy1decanonitrile, 2-butyl-4,4-6-trimethyl-1,3-dioxane, 2-butyl-4,4,6-trimethyl-1, 3 -dioxane, limetol, 3, 1 2-tridecadiene nitrile, methyl lavender ketone, octanal dimethyl acetal, orange blossom ether, p-butyl tertiary cyclohexanol, benzene pentanol, gamma-methyl, 3-octanol, 3, 7-dimethyl-3- octanol, 2,6-dimethyl-2-octanol, thymyl methyl ether, ortho-tertiary butyl tertiary cyclohexanyl, benzene, 2- (1-ethoxyethoxy) ethyl-1-ethoxy-1 - (2-phenylethoxy) ethane, cyclohexyl phenyl ethyl ether, 1- (4-isopropylcyclohexyl) ethanol, and bicyclo [2.2.1] heptan-2-ethyl-5 (or 6) -methoxytricyclo [2.2.1 .0.2.6] heptane, 1-ethyl- 3-methoxy, wherein at least one member has an odor value of C or better. Most preferably, the fragrant agent comprises a mixture of three members selected from the group consisting of isoamy phenyl ether, soborneol, isoborneol methyl ether, 2,2-dimethylbicyclo [2.2.1] heptan-3-carboxylic acid, methyl ether, acetate of 2-pentyl cyclohexanyl pentyl, 7-octen-2-ol-2,6-dimethyl acetate, 1-methyl-4-isopropylcyclohexan-8-yl acetate, tetrahydrogeraniol, 2,6-dimethylheptan-2-ol, diphenyl methane, diphenyl oxide, eucalyptol, alpha-phenyl acetate, 1,3-dioxan-2,4,6-trimethyl-4-phenyl, 4-methyl-2- (2-methylpropyl) tetrahydro-2H-pyran -4-ol, tricyclo [5.2.1 .02,6] decan-2-carboxylic acid ethyl ester, 2-methyldecanoanitrile, 2-butyl-4,4-6-trimethyl-1,3-dioxane, 2-butyl-4 , 4,6-trimethyl-1,3-dioxane, limetol, 3, 12-tridecadiene nitrile, methyl lavender ketone, octanal dimethyl acetal, orange blossom ether, tertiary p-butyl cyclohexanol, benzene pentanol, gamma-methyl, 3-octanol , 3,7-dimethyl-3-octanol, 2,6-dimethyl-2-octanol, thymyl methyl ether, ortho-butyl ether cyclohexanyl, benzene, 2- (1-ethoxyethoxy) ethyl-1-ethoxy-1- (2-phenylethoxy) ethane, cyclohexyl phenyl ethyl ether, 1- (4-isopropylcyclohexyl) ethanol, and bicyclo [2.2.1] heptan- 2-ethyl-5 (or 6) -methoxytricyclo [2.2. 1 .0.2.6] heptane, 1-ethyl-3-methoxy, wherein at least one member has an odor value of C or better. In a preferred embodiment, the fragrant has an odor value of B or better. More preferably, the fragrant has an odor value of B or better and is selected from the group consisting of isoamyl phenyl ether, isoborneol, soborneol. methyl ether, 2,2-dimethyl bicyclo acid [2.2. 1] heptan-3-carboxylic acid. methyl ether, 2-pentyl acetate tertiary cyclohexanyl, 7-octen-2-ol-2,6-dimethyl acetate, 1-methyl-4-isopropylcyclohexan-8-yl acetate, tetrahydrogeraniol, 2,6-dimethylheptan-2-o !, diphenyl methane, oxide of diphenyl, eucalyptol, alpha-phenyl acetate, 1,3-dioxan-2,4,6-trimethyl-4-phenyle, 4-methyl-2- (2-methylpropyl) tetrahydro-2H-pyran-4-ol, tricycle [5.2.1 .02,6] ethyl decan-2-carboxylate, 2-methyldocanonitrile, 2-butyl-4,4-6-trimethyl-1,3-dioxane, 2-butyl-4,4,6-trimethyl-1,3-dioxane, limetol, 3, 12-tridecadiene nitrile, methyl lavender ketone, octanal dimethyl acetal, orange blossom ether, tertiary p-butyl cyclohexanol, benzene pentanol, gamma-methyl, 3-octanol, 3,7-dimethyl-3-octanol, 2,6-dimethyl-2-octanol, thymil methyl ether, ortho-tertiary butyl tertiary cyclohexanyl acetate, benzene, 2- (1-ethoxyethoxy) ethyl-1-ethoxy-1- (2-phenylethoxy) ethane, cyclohexyl phenyl ethyl ether, 1- (4-isopropylcyanohexyl) ethanol, and bicyclo [2.2.1] heptan-2-ethyl-5 (or 6) -methoxytricyclo [2.2.1 .0.2.6] heptane, 1-ethyl-3-methoxy. The fragrant agent may also comprise a diluent. Suitable diluents can be selected from the group consisting of Isopar L (light), Isopar M (medium) and Isopar H (heavy). Preferably, the diluent is Isopar M, Isopar L, Isopar M and Isopar H are clear, colorless, liquid, synthetic isoparaffin hydrocarbons which are commercially available from Exxon Chemical Company, Houston, Texas. In a preferred embodiment, the fragrant agent comprises a mixture (No. 1) of the following components in the proportions set forth below: In another preferred embodiment, the fragrant agent comprises a mixture (No. 2) of the following components in the proportions set forth below In another preferred embodiment, the fragrant agent comprises a mixture (No. 3) of the following components in the proportions set forth below.

In another preferred embodiment, the fragane agent comprises a mixture (No. 4) of the following components in the proportions set forth below: The amount of fragrant agent present in the stable fragrant bleaching compositions of the present invention is an effective organoleptic amount. An effective organoleptic amount of fragrant agent is that amount of fragrant agent necessary to exhibit a sensory effect and thereby mask or modify the odor of the bleaching agent in the bleaching composition. The exact amount of fragrant agent is a matter of the subject of preference for factors such as the type of fragrant agent and bleaching agent employed, as well as the other ingredients present in the bleaching composition. In a preferred embodiment, the fragrant agent is present in stable fragrant bleaching compositions in an amount of from about 1% to about 10%, preferably from about 2% to about 8%, more preferably from about 4% to about 6%, and most preferably about 5%, by weight of the fragrant, stable bleaching composition.

In a preferred embodiment, the present invention is directed to fragrance bleaching blocks, configured. In particular, a fragrance urinal block is provided by this invention. The fragranced whitening blocks, configured, comprise a bleaching agent having a reduction potential of from about -0.7v to about + 0.4v compared to a Ag / AgCl reference electrode, an effective organoleptic amount of a fragrant agent which, ( i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) is not substantially hygroscopic, and at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant , a dye, a dispersant, a binder, a lubricant / mold release agent, a detergent former, a corrosion inhibitor, a chelant, a stabilizer, a biocide, a bromide source, and a halogenated oxidant biocide. In a preferred embodiment, the bleach block with shaped fragrance contains a bleaching agent composition containing chlorinated hydantoins and combinations thereof. For example, the configured bleach block with fragrance may contain approximately eighty percent 1,3-dichloro-5,5-dimethylhydantoin and twenty percent 1,3-dichloro-5,5-methylethylhydantoin ("Dantochior®"), and the ethylene-bis-stearamide binder ("Acrawax® C"). Once prepared, fragrant, stable, inventive bleach compositions can be stored for future use or can be formulated in effective amounts with acceptable carriers to prepare a wide variety of fragrant compositions. The carriers Suitable include sodium sulfate and the like. Other ingredients will usually be incorporated into the composition as dictated by the nature of the desired composition as is well known to those of ordinary skill in the art. The final bleaching compositions are readily prepared using methods generally known in the chemical arts. Illustrative non-limiting additive categories and examples of formulation materials that can be employed in the stable, fragrant bleaching compositions of the present invention include solubility modifiers (eg, sodium bicarbonate, aluminum hydroxide, magnesium oxide, hydroxide) of barium and sodium carbonate; see US patent no. 4,537, 697); compaction aids (e.g., inorganic salts comprised of hydrogen, lithium, sodium, potassium, magnesium and calcium cations associated with carbonate, bicarbonate, borate, silicate, phosphate, percarbonate and perfosphate, see U.S. Patent No. 4,677, 130); fillers (for example, inorganic salts, such as combinations of lithium, sodium, potassium, magnesium and calcium cations with sulfate and chloride anions as well as other inorganics, such as clays and zeolites); surfactants (for example, sodium dioctyl sulfusuccinate, disodium lauryl sulfosuccinate, sodium lauryl sulfoacetate and sodium cocoyl isothionate); dyes (for example, tetrasodium salt of copper phthalocyanine tetrasulfonic acid dye, phthalocyanines derived and non-derived, such as Pigment Green 7, Pigment Blue 1 5, and Pigment Blue 86, as well as inorganic pigments, such as lazurite); fragrances (for example, BBA - Pine Herbal); dispersants (for example, acid polyacrylic and secondary and tertiary polymers of the dispersants based on polyacrylic acid and tetrasodium salt of 2-phosphono-1, 2,4-butanedicarboxylic acid, "Bayhibit® S"); lubricants / mold release agents (eg, sodium stearate, calcium and magnesium); binders (for example, ethylene-bis-stearamide "Acrawa® C"); chelators (e.g., sodium gluconate, ethylenediaminetetraacetic acid (EDTA), citric acid and sodium nitrilotriacetate (NTA)); stabilizers (e.g., dimethyl hydantoin, N-hydrogen stabilizers, such as, 5, 5-dimethyl hydantoin (DMH), 5,5-ethylmethyl hydantoin (EMH), cyanuric acid, sulfamic acid, urea, 4,4-dimethyl -2-oxazolidinoma, sulfonamides (for example, benzene sulfonamide, p-toluene sulfonamide and methane sulfonamide), sulfamates, glycoluril and succinimide), biocides (for example, copper sulfate, molybdates, selenates, tunstates and chromates; see US patent No 4, 995, 987); bromide sources (e.g., sodium bromide and potassium bromide); corrosion inhibitors (e.g., sodium silicate and sodium benzoate); and halogenated oxidizing biocides (e.g., bromochlor-5,5-dimethylhydantoin (BCDMH), halogenated hydantoins, chlorinated isocyanurates, and other halogenated n-hydrogen compounds). The present invention is further illustrated by the following examples, which are not intended to limit the effective scope of the claims. All parts and percentages in the examples and throughout the specification and claims are by weight of the final composition unless otherwise specified.

Example 1 This example illustrates a method for preparing a fragrant, stable, solid bleach composition in the form of a tablet containing a fragrant agent and a bleaching agent compound according to the present invention. The formula for making a tablet of fragrant, stable, solid whitening composition for testing is set out below: All work to prepare the fragrant, stable, solid whitening composition was carried out in a ventilation hood using protective gloves, a dust mask and protective goggles. Components # 1 and # 2 were premixed until a dry powder formed. Components # 3 to # 5 were then added in order and mixed until uniform. An amount of 10 grams of the above mixture was placed in a chrome-plated die set and then placed in a Carver press, where 1406 kg / cm2 was applied for 5 seconds. The pressure was released when releasing the hydraulic valve from purge. The tablet was then removed from the die by inverting the die and placing a flange between the die and the press. The press was pumped until the tablet was released. The pressure was released again by releasing the hydraulic purge valve and removing the die and the tablet. A 10 g tablet was then placed in 500 ml of tap water and the odor was evaluated as described below. A number of fragrance materials were tested in a block tablet, prepared as described above, at a level of 5.00% by weight, using Dantochior® RW powder as the bleaching agent. Table 1, set forth below, summarizes the results of the color and odor observations of the tablets after storage for two weeks, at room temperature and at 43.33 ° C.

Table 1 2 weeks to 2 weeks > at room temperature 43.3 ° C Component Color Odor Color Odor Without fragrance 0 A 0 B Anther 0 B 0 C Isoborneol 0 A 0 / + B Isoborneol methyl ether 0 A / B + B Cistulate 0 B 0 / + B / C Coniferan 0 B 0 / + C Dihydro-Mirenyl Acetate 0 B 0 / + D Dihydro-terpinyl acetate 0 B ++ D Tetrahydrogeraniol 0 A / B 0 / + B Dimetol 0 A 0 / + C Diphenyl methane 0 A 0 / + B Diphenyl oxide ++ B + + + C Eucalyptol (1, 8-cineol) 0 A 0 B Alpha-phen alkyl acetate 0 A 0 C Floropal 0 C + + D Florosa (QST-1 20) 0 B + C Fruitate 0 A 0 / + B Frutonile (QST-20) 0 A + + C Table 1 (continued) 2 weeks to 2 weeks; at room temperature 43.3 ° C Component Color Odor Color Odor Herboxano 0 B ++ D Limetol (LRG 1 1 82) 0 B 0 D Mandaril 0 B 0 / + D Methyl ketone ketone 0 B 0 / + D Octacetal 0 A 0 B Aether of orange blossom 0 B / C 0 D Isopar M 0 A 0 A / B Patchone ++++ N / S N / S N / S Fenoxanol + C + + D Tetrahydro alio ocimenol 0 A / B 0 / + D Tetrahydro linaiool 0 B 0 / + 0 Tetrahydro mircenol 0 A / B 0 / + D Timil methyl ether ++ B + + + C Verdox 0 B 0 C Vertocinth (efetaal) 0 B + D Phenafleur (IFF-121) + B + D Mugetanol (H NR-50) + + + + N / S N / S N / S Neoproxen (I FF-149) 0 B 0 / + 0 Stability of color ++++ = severe intense discoloration +++ = considerable discoloration ++ = moderate discoloration + = slight discoloration 0 = essentially no color change in relation to base without fragrance Odor stability A = stable B = acceptably stable, light change C = less stable, not unpleasant D = unstable, note "out" N / S = no sample due to the reaction at room temperature Based on the observations set forth in Table 1, fragrance mixtures Nos. 1 to 4 were prepared with the components, and in the proportions, discussed below.

Fragrance mix No.1, Green Lavender Fragrance Blend No. 2, Herbal Citrus Flavor fragrance no. 3, Herbal Pine Flavor Fragrance mixture No. 4. Flavor of the lavender Fragrance blends Nos. 1 to 4 were tested in a block tablet, prepared as described above, at a level of 5.00%, by weight, using Dantochior® RW powder as the bleaching agent. Table 2, set forth below, summarizes the results of the color and odor observations of the tablets after storage for two weeks, at room temperature and at 43.3 ° C.

Table 2 2 weeks to 2 weeks at room temperature 43.3 ° C Component Color Odor Color Odor No fragrance 0 A 0 B Mixture 1 0 B + C Mixture 2 0 A 0 B Mixture 3 0 A 0 C Mixture 4 0 A 0 B Stability of color + + + + severe intense discoloration - + + = considerable discoloration + + = moderate discoloration + = slight discoloration 0 = essentially no color change in relation to base without fragrance Odor stability A = stable B = acceptably stable, light change C = less stable, not unpleasant D = unstable, note "out" When 1, 3-dibromo-5,5-dimethylhydantoin was substituted with 1,3-dichloro-5,5-dimethylhydantoin, the results of the stability test showed that a fragrant mixture of eucalyptol / phenolic acetate was relatively stable at room temperature. environment, but lost some of its character of pine smell at 32.22 ° C, although it was still recognized a pine note. A slight yellow discoloration was also noted. At 37.78 ° C and 43.33 ° C, the pine odor disappeared completely and the 1,3-dibromo-5,5-dimethylhydantoin tablets showed strong yellow discoloration.

Example II This example illustrates a method for preparing a solid block using fusion techniques. Several blocks containing various additives were produced including: solubility modifiers, fillers, surfactants, colorants, fragrances, dispersants, lubricants / mold release agents, detergent formers, corrosion inhibitors, chelants, stabilizers and biocides. The blocks were produced by mixing the bleaching agent (90%) and the additive (1.0%) or fragrant agent (1.0%) and placing the mixture in a tube of Test and heat in an oil bath having a temperature that varies from 85 ° C to 95 ° C. The bleaching agents tested consisted of two compositions, identified as Composition A and Composition B in Table 3. Composition A contains a 50/50 mixture of methylethylhydantoin and dimethylhydantoin, which is an all-chlorinated haiohydantoin. Composition B contains a 50/50 mixture of methylethylhydantoin and dimethylhydantoin, which is a 3: 1 haiohydantoin from chlorine to bromine. The mixture was heated until it melted. Upon melting, the mixture was poured into a small hexagonal plastic mold and allowed to cool. The solid block was removed from the mold. The criteria for successful blocks were no visual discoloration and production of a solid, dust-free form. All the tested additives produced solid blocks, free of dust without any visible discoloration. Such blocks would be useful as blocks of urinals. The tested additives are shown in Table 3: Table 3 Fusion casting compositions Example 1 This example illustrates a method for preparing a urinary block containing a fragrant agent, a bleaching agent and at least one additive using compression techniques. The formula for making a fragrant, stable, solid whitening tablet for testing is outlined below: The bleaching agent contained about eighty percent of 1,3-dichloro-5,5-dimethylhydantoin and twenty percent of 1,3-dichloro-5,5-methylethylhydantoin. All work to prepare the fragrant, stable, solid whitening composition was carried out in a ventilation hood using protective gloves, a dust mask and protective goggles. All the components were mixed until they were uniform. An amount of 50 grams of the above mixture was placed in a chromium plated die set and then placed in a Carver press, where approximately 1265.4 kg / cm2 was applied to approximately 1546.6 kg / cm2 for about 5 to 10 sec. undos The pressure was released when releasing the hydraulic purge valve. The The tablet was then removed from the die by inverting the die and placing a tab between the die and the press. The press was pumped until the tablet was released. The pressure was released again when the hydraulic purge valve was released and the die and the tablet were removed. The longevity of each urinal block was tested by placing the urinal block (weighing approximately 50 g) in 500 ml of tap water for a specific period of time each day for three consecutive days. On Day 1, the urinal block was initially weighed and then placed in water for 7 hours. The urinal block was weighed to determine the percentage of dissolved block. On Day 2, the urinal block was again placed in water for 7 hours and subsequently weighed. On Day 3, the test was run for 8 hours. The results of the three-day trial revealed that approximately 8% of the urinary block dissolved during each experiment. These results show that after three days, approximately 75% of the urinary block was intact. Next, the longevity of the urinal block was compared with the longevity of a commercial urinal block. The experiment was conducted in urinals in real work over a period of two weeks. The bleaching agent in the commercial urinal block was paradichlorobenzene. The results are illustrated in the table below.

As illustrated above, the commercial urinal block dissolved almost completely within 2 weeks, while only 38% of the urinary block of the present invention dissolved within 2 weeks. In this way, the urinal blocks produced by the present invention have a significantly greater longevity compared to blocks of commercial urinals. The invention being described in this way, it will be obvious that it can be varied in many ways. Such variations should not be considered as a departure from the spirit and scope of the invention and it is intended that all such modifications be included within the scope of the following claims.

Claims (22)

1. RETIREMENT NDI CATION 1 . A bleach block with fragrance, configured, comprising: (a) a bleaching agent having a reduction potential from about -0.7v to about + 0.4v compared to an Ag / AgCl electrode; (b) an effective organoleptic amount of a fragrant agent, which: (i) is stable to the bleaching agent; (ii) does not decompose the bleaching agent; (iii) is not substantially hygroscopic; and (c) at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant, a colorant, a dispersant, a binder, a lubricant / mold release agent, a detergent former , a corrosion inhibitor, a chelator, a stabilizer, a biocide, a bromine source and a halogenated oxidant biocide. The whitening, fragrance block configured of claim 1, wherein the bleaching agent is a composition containing about eighty percent 1,3-dichloro-5,5-dimethylhydantoin and twenty percent 1,3-dichloro-5 , 5-methylethylhydantoin. 3. The bleach block with fragrance, configured of claim 2, wherein the additive is a binder. The whitening block with fragrance, configured of claim 3, wherein the binder is ethylene-bis-stearam ida. 5. The whitening block with fragrance, configured of claim 1, wherein the fragrance bleaching block, configured, is a tablet, briquette, granule, pellet or dispenser. 6. The fragrance whitening block, configured of claim 5, wherein the fragrance bleaching block, configured, is a urinal block. A method for the production of a fragrance bleach block, configured containing: (a) a bleaching agent having a reduction potential of about -0.7v to about + 0.4v compared to an Ag / AgCl reference electrode; (b) an effective organoleptic amount of a fragrant agent, which: (i) is stable to the bleaching agent; (ii) does not decompose the bleaching agent; (iii) is not substantially hygroscopic: and (c) at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant, a dye, a dispersant, a binder, a lubricant / agent of mold release, a detergent former, a corrosion inhibitor, a chelant, a stabilizer, a biocide, a bromine source and an oxidant halogenated biocide, comprising mixing the bleaching agent, the fragrant agent and the additive, extruding a melt or partial melting of the mixture in a mold of a predetermined size and shape, cooling the mold to solidify the block Bleach with fragrance, configured, and recover the whitening block with fragrance, configured from the mold. The method of claim 7, wherein the bleaching agent is a composition containing approximately eighty percent 1,3-dichloro-5,5-dimethylhydantoin and twenty percent 1,3-dichloro-5,5-methylethylhydantoin. The method of claim 8, wherein the urinal block further contains a binder. The method of claim 9, wherein the binder is ethylene-bis-stearamide. eleven . The method of the re-excitation 7, wherein the bleaching block with fragrance, configured is a tablet, briquette, granule, pellet or dispenser. The method of claim 1, wherein the fragrance whitening block configured is a urinal block. 3. A method for the production of a bleaching block with fragrance, configured comprising mixing the bleaching agent, the fragrant agent and the additive, containing: (a) a bleaching agent having a reduction potential of about -0.7v to about + 0.4v compared to an Ag / AgCl reference electrode; (b) an effective organoleptic amount of a fragrant agent, and which: (i) is stable to the bleaching agent; (ii) does not decompose the bleaching agent: (iii) is not substantially hygroscopic; and (c) at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant, a colorant, a dispersant, a binder, a lubricant / mold release agent, a detergent former , a corrosion inhibitor, a chelator, a stabilizer, a biocide, a bromine source and a halogenated oxidant biocide, and placing the mixture in a mold of a predetermined size and shape, compressing the mold for a period and at a pressure sufficient to produce a whitening block with fragrance, solid, and recover the block whitening with fragrance, configured, solid, mold. The method of claim 13, wherein the bleaching agent is a composition containing about eighty percent 1,3-dichloro-5,5-dimethylhydantoin and twenty percent 1,3-dichloro-5,5-methylethylhydantoin. . The method of claim 14, wherein the bleaching block further contains a binder. The method of claim 1, wherein the binder is ethylene-bis-stearamide. The method of claim 13, wherein the fragrance bleaching block, configured, is a tablet, briquette, granule, pellet or dispenser. 8. The method of claim 17, wherein the bleaching block with fragment, configured is a urinary block. 19. The method of claim 1, wherein the pressure varies from about 703 kg / cm2 to about 2812 kg / cm2 was applied to the mold for about 0.5 to 10 seconds. 20. A method for reducing or retarding bacterial, fungal and algal growth and controlling the biofilm comprising placing a bleach block with fragrance, configured in a bacterial, fungal or algal growth sustaining environment, containing: (a) a bleaching agent having a reduction potential of approximately -0.7v to approximately + 0.4v compared to an Ag / AgCl reference electrode; (b) an effective organoleptic amount of a fragrant agent, which: (i) is stable to the bleaching agent; (ii) does not decompose the bleaching agent; (iii) is not substantially hygroscopic; and (c) at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant, a colorant, a dispersant, a binder, a lubricant / mold release agent, a detergent former , a corrosion inhibitor, a chelator, a stabilizer, a biocide, a source of bromine and a halogenated biocide oxidizes. twenty-one . The method of claim 20, wherein the bacterial growth, fungal or algal growth environment is a toilet device. 22. A method for cleaning substrates, which comprises contacting said substrate with a fragrance whitening block, configured, containing: (a) a bleaching agent having a reduction potential of about -0.7v to about + 0.4v compared to an electrode of Ag / AgCI reference; (b) an effective organoleptic amount of a fragrant agent, which: (i) is stable to the bleaching agent; (ii) does not decompose the bleaching agent; (iii) is not substantially hygroscopic; and (c) at least one of the following additives: a solubility modifier, a compaction aid, a filler, a surfactant, a colorant, a dispersant, a binder, a lubricant / mold release agent, a detergent former , a corrosion inhibitor, a chelator, a stabilizer, a biocide, a bromine source and a halogenated oxidant biocide. SUMMARY The present invention is directed to a fragrant, stable whitening block, which comprises: (a) a bleaching agent having a reduction potential from about -0.7v to about + 0.4v, and (b) an effective organoleptic amount of a fragrant agent, which (i) is stable to the bleaching agent, (ii) does not decompose the bleaching agent, and (iii) is not substantially hygroscopic. This invention also pertains to methods for making and employing stable, fragrance bleaching block.