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PATENT ASSIGNEE'S COUNTRY USA
UPDATE 03.00
PATENT NUMBER This data is not available for free
PATENT GRANT DATE 14.03.00
PATENT TITLE Personal hygiene product with enhanced fragrance delivery

PATENT ABSTRACT Cosmetic compositions are disclosed which are made from a multi-component base made from at least three different components, which base exhibits a weight loss not exceeding 46% in a 24 hour period in a controlled environment with minimum air flow in a humidity chamber with a temperature of 35-40 degrees C. and 80% humidity; and a medium volatility fragrance, wherein a solubility parameter is calculated for each of the base and fragrance components are matched so that the difference between them is less than 38%.

PATENT INVENTORS This data is not available for free
PATENT ASSIGNEE This data is not available for free
PATENT FILE DATE 05.03.98
PATENT REFERENCES CITED Ralph G. Harry, Cosmetic Materials--Their Orgin, Characteristics, Uses and Dermatological Action, by Chemical Publishing Co., Inc., 1963, pp. 354-356 .
PATENT CLAIMS
We claim:

1. A cosmetic composition comprising;

(a) 40-98% of a multi-component base made from at least three different components, which base exhibits a weight loss not exceeding 46% in a 24 hour period in a controlled environment with minimum air flow in a humidity chamber with a temperature of 35-40 degrees C. and 80% humidity; and

(b) 0.5% to 10% of a medium volatility fragrance,

wherein a solubility parameter is calculated for each of (a) and (b) and the solubility parameters are matched so that the difference between (a) and (b) is less than 38% and amounts are in percent by weight based on the total weight of the cosmetic composition, wherein the multi-component base is made with at least three members of the group selected from the group consisting of diethylphthalate; isopropylmyristate; cetyl alcohol; isocetyl alcohol; isostearyl alcohol; propylene glycol; dipropylene glycol; tripropylene glycol- tetrapropylene glycol; and polypropylene glycols selected from glycols of Formula 1:

H(OCH.sub.2 --CH(CH.sub.3)).sub.n --OH Formula I

where n is a number from 5-50,

wherein the multi-component base is made with at least three components selected from the group consisting of 1-25% propylene glycol; 1-40% dipropylene glycol; 1-50% tripropylene glycol; 1-50%; 1-15% polypropylene glycol; 1-50% isopropylmyristate; 1-50% diethylphthalate; 1-30% cetyl alcohol; 1-30% isocetyl alcohol; an 1-30% isocetyl alcohol wherein the amounts are in percent by weight based on the total weight of the composition wherein the multi-component base comprises from 40-98% by weight of the total weight of the composition.

2. A cosmetic composition according to claim 1 wherein the composition comprises 60-90% of the multi-component base.

3. A cosmetic composition according to claim 1 wherein the composition comprises 65-75% of the multi-component base.

4. A cosmetic composition according to claim 1 wherein the composition comprises 1-3% of the medium volatility fragrance.

5. A cosmetic composition according to claim 1 wherein the multi-component base is made with at least three components selected from the group consisting of 10-21% propylene glycol; 20-40% dipropylene glycol; 15-30% tripropylene glycol; 15-15%; 10-15% polypropylene glycol; 5-20% isopropylmyristate; 5-20% diethylphthalate; 5-30% cetyl alcohol; 5-30% isocetyl alcohol; and 5-30% isostearyl alcohol.

6. A cosmetic composition according to claim 1 further comprising at least one member from the group consisting of:

(a) antiperspirant active ingredients;

(b) fragrances;

(c) antibacterial agents;

(d) anti-irritants;

(e) emollients; and

(f) surfactants.

7. A cosmetic composition according to claim 1 made by combining 10-21% tripropylene glycol; 25-35% dipropylene glycol; and 14-24% propylene glycol.

8. A cosmetic composition according to claim 1 further comprising 5-10% of at least one gelling agent.

9. A cosmetic composition according to claim 1 made by combining 10-21% tripropylene glycol; 25-35% dipropylene glycol; 14-24% propylene glycol, 5-10% of at least one gelling agent, and 0.05-0.5% antibacterial agents.

10. A cosmetic composition according to any one of claims 1-4 and 5-9 wherein the cosmetic composition is a deodorant.

11. A cosmetic composition according to any one of claims 1-4 and 5-9 wherein the cosmetic composition further comprises a cosmetically active ingredient.

12. A cosmetic composition according to claim 8 wherein the gelling agent is selected from the group consisting of at least one member of the group consisting of

(a) dibenzylidene sorbitol; (b) a mixed glycol system in combination with dibenzylidene sorbitol; and mixtures of (a) or (b) in combination with one or more members selected from the group consisting of sodium stearate and sodium, isostearate.
--------------------------------------------------------------------------------

PATENT DESCRIPTION FIELD OF THE INVENTION

This invention relates to personal hygiene product compositions which have improved fragrance, especially when formulated into underarm products such as antiperspirants and deodorants.

BACKGROUND OF THE INVENTION

Personal care products such as antiperspirants and/or deodorants have been and continue to be the subject of further refinement and improvement. One of the areas of interest is the incorporation of fragrance into underarm products such as deodorants and antiperspirants to achieve different effects and properties.

Fragrances have been used in a variety of ways in cosmetic products; however, the formulation of cosmetic products with fragrances to achieve good quality products is not always straightforward and reflects a coordination of fragrance (taking into account the compatibility of fragrance with the entire composition), the aesthetics of low skin irritation and good skin feel, and compatibility of various ingredients used in such formulations. The ability to achieve compatibility between all the ingredients, good aesthetics and superior performance in a stable product is further complicated by the form the final product will have (stick, cream, aerosol, etc.).

PCT case WO 97/30689 to The Procter & Gamble Company describes leave-on hair care compositions and leave-on skin care compositions comprising from 0.001-50% of enduring perfume itself comprising at least about 70% of perfume ingredients selected from the group consisting of ingredients having a boiling point of at least about 250 degrees C. and a ClogP of at least 3.

U.S. Pat. No. 5,540,853 to Trinh et al discloses wash off personal treatment compositions and/or cosmetic compositions containing an enduring perfume component meeting a similar description to that described in WO 97/30689.

U.S. Pat. No. 5,409,694 to Meyer et al describes liquid deodorant compositions characterized by the presence of water and zinc phenolsulfonate in selected ratios. These formulations use nonionic emulsifiers, low levels of irritating polyhydric alcohols and relatively low levels of monohydric alcohols.

U.S. Pat. No. 5,587,152 to Mackles et al teach clear, solid, topical deodorant compositions comprising a water-insoluble ester of a water-soluble acid having solubility in water of greater than 50% weight/weight at 20 degrees C., 2-6% by weight of dibenzylidene sorbitol, wherein the compositions are substantially free of water and of water-miscible solvents which are liquid at ambient temperature.

U.S. Pat. No. 5,490,982 to Siciliano discloses cosmetic microemulsion compositions comprising a fragrance and a vehicle system which itself comprises water, isoeicosane and a C8-C40 fatty glyceride alkoxylated with 1-100 moles of C2-C3 alkylene oxide per mole of glycerides.

U.S. Pat. No. 5,614,179 to Murphy et al describes deodorant and antiperspirant/deodorant cosmetic stick and roll-on products with an organic matrix having a dispersed particle phase of an encapsulated bicarbonate salt coated with a film-forming medium itself comprising a blend of a polymer and a fragrance. After application to the underarm surfaces, the fragrance is released. Polyethylene glycol is noted as releasing the fragrance at a relatively fast rate.

U.S. Pat. No. 5,200,174 to describes gel stick antiperspirant compositions comprising a dibenzylidene alditol gelling agent, a 2-oxazolidinone derivative having a C1-C4 alkyl radical substituted at the 3 position of the heterocyclic ring and a hydroxy solvent which itself may be selected from the group consisting of liquid polyethylene glycols, liquid polyethylene glycols, liquid polypropylene polyethylene glycol copolymers, water, C2-C4 alcohols, 2-methoxyethanol, 2-ethoxyethanol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4butylene glycol, 1,2-butylene glycol, diethylene glycol monomethylether, diethylene glycol monoethylether, 1,3-butylene glycol, 2,3-butylene glycol, 2,4dihydroxy-2-methylpentane, trimethylene glycol, glycerine, 1,3-butane diol, 1,4butane diol, and mixtures thereof.

U.S. Pat. No. 5,635,188 to Gallefuillos teaches a roll-on or gel antiperspirant comprising an antiperspirant active a carrier and a water soluble or water dispersible hydrophilic polymer having a weight from 5,000-5,000,000 and selected from the group consisting of, for example, polyethylene glycols, polypropylene glycols, polyacrylamides, polymethylacrylamides, polyvinyl alcohols, polyvinyl pyrrolidones, dimethicone copolyols, alkyl dimethicone copolyols, water-soluble cellulosic polymers, hydroxpropylmethylcellulose, carboxymethylceliulose, polyoxyethylene-polyoxypropylene copolymers, polyurethanes, and mixtures thereof.

U.S. Pat. No. 5,417,964 describes a process for manufacturing an antiperspirant stick under selected processing conditions. The carriers incorporated in these compositions may be selected from, for example, non-volatile paraffinic hydrocarbons including polyethylene glycols and polypropylene glycols which have molecular weights in the range of 500-6000.

Commercial products which emphasize the enhancement of fragrance include Old Spice.RTM. High Endurance with a dipropylene glycol/propylene glycol system; and Gillette Series Clear Stick Deodorant and Right Guard Clear Stick Deodorant each with a 2-methyl-1,3-propanediol, propylene glycol, dipropylene glycol system. Solid perfume products for application of perfume to areas other than underarms have also been marketed by high-end cosmetic companies over the years, for example, with signature fragrances.

From time to time irritancy problems occur in underarm products, especially deodorants. Selected glycol systems, especially those with higher molecular weight glycols have been suggested to reduce irritation. This may be seen in a copending U.S. patent application Ser. No. 8/689,782, filed on Aug. 18, 1995 assigned to the same owner of this application. Other U.S. patent applications owned by the same owner as this application which are being filed on the even date herewith include U.S. application Ser. No. 09/035,483, on Mar. 5, 1998, and U.S. application Ser. No. 09/213,625, filed on Dec. 18, 1998.

There still remains a need, however, for improved cosmetic formulations which exhibit improved durability in fragrance in underarm products and it is an object of the present invention to provide such formulations.

It is also an object of the present invention to provide stick compositions which have acceptable aesthetics while providing enhanced fragrance substantivity in underarm products. These and other objects of the invention will be apparent from the following description.

SUMMARY OF THE INVENTION

The cosmetic compositions of this invention comprise

(a) 40-98%, particularly 60-90%, and more particularly 65-75%, of a multi-component base made from at least three different components, which base exhibits a weight loss not exceeding 46% in a 24 hour period in a controlled environment with minimum air flow in a humidity chamber with a temperature of 35-40 degrees C. and 80% humidity; and

(b) 0.5% to 10%, more particularly 1-3% of a medium volatility fragrance, wherein a solubility parameter is calculated for each of (a) and (b) and are matched so that the difference between (a) and (b) is less than 38%.

DETAILED DESCRIPTION OF THE INVENTION

The base of the present invention comprises a multi-component system made with at least three members of the group consisting of propylene glycol, dipropylene glycol, 2-methyl 1,3 propanediol (also called MPDiol), tripropylene glycol, tetrapropylene glycol, and other polypropylene glycols (also called PPG's) as described below, diethylphthalate, isopropylmyristate, cetyl alcohol, isocetyl alcohol and isostearyl alcohol, wherein the base exhibits a weight loss of less than or equal to 46% in a 24 hour period at a temperature of 32-40 degrees C. and 80% humidity, wherein the multi-component system comprises from 40-98% by weight of the total weight of the composition.

Bases made with more than three components are also included in this invention, for example, those made with four or five components. By way of example, various amounts of each of the components when they are used (based on the total weight of the final cosmetic composition) include:

propylene glycol--1-25%, particularly 10-21%, and more particularly 11-16%;

dipropylene glycol--1-40%, particularly at least 20%;

MPDiol--1-20%, particularly at least 10%;

tripropylene glycol--1-50%, particularly 15-30%;

tetrapropylene glycol--1-50%, particularly 5-15% and more particularly at least 10%;

polypropylene glycol--1-15%, particularly at least 10% of one or more polypropylene glycols having Formula I:

H(OCH.sub.2 --CH(CH.sub.3)).sub.a --OH Formula I

where n is a number from 5-50, for example, n may be selected from the group consisting of 9, 15, 17, 20, 26, 32, and 35;

isopropylmyristate--1-50%, particularly 5-20% and preferably at least 5%;

diethylphthalate--1-50%, particularly 5-20% and preferably at least 5%;

cetyl alcohol--1-30%, preferably at least 5%;

isocetyl alcohol--1-30%, preferably at least 5%; and

isostearyl alcohol--1-30%, preferably at least 5%;

wherein the multi-component base comprises from 40-98% by weight of the total weight of the cosmetic composition and the amounts are in percent by weight based on the total weight of the composition.

Particular examples of three-component bases include but are not limited to:

(a) dipropylene glycol/tripropylene glycoylpolypropylene glycol, especially where the amount of each component is:


______________________________________
Total Quantity in % (based on the total
Deodorant Raw Material weight of the final composition)
______________________________________
Dipropylene Glycol
35
Tripropylene Glycol 21
Polypropylene Glycol - PPG-9 14
______________________________________



(b) dipropylene glycol/propylene glycoyltripropylene glycol, especially where the amount of each component is:


______________________________________
Total Quantity in % (based on the total
Deodorant Raw Material weight of the final composition)
______________________________________
Propylene Glycol
14
Dipropylene Glycol 35
Tripropylene Glycol 21
______________________________________



and

(c) dipropylene glycol/propylene glycol/tripropylene glycol, especially where the amount of each component is:


______________________________________
Total Quantity in % (based on the total
Deodorant Raw Material weight of the final composition)
______________________________________
Propylene Glycol
21
Dipropylene Glycol 35
Tripropylene Glycol 14
______________________________________



wherein the three component base comprises from 60-80%, and preferably 70% by weight of the total cosmetic composition.

Particular examples of a four-component systems include:


______________________________________
Total Quantity in % (based on the total
Deodorant Raw Material weight of the final composition)
______________________________________
Propylene Glycol
14
Dipropylene Glycol 21
Tripropylene Glycol 21
Polypropylene Glycol - PPG-9 14
______________________________________



Particular examples of a five-component systems include:


______________________________________
Total Quantity in % (based on the total
Deodorant Raw Material weight of the final composition)
______________________________________
Propylene Glycol
14
Dipropylene Glycol 14
Tripropylene Glycol 14
Tetrapropylene Glycol 14
Polypropylene Glycol - PPG-9 14
______________________________________



The medium volatility fragrance used in the compositions of this invention is made by combining fragrance components which each have a volatility of 0.0001-0.001 millimeters of mercury (mm Hg) when measured at 25 degrees Celsius and under 760 mm Hg atmospheric. The fragrance components are combined to form a medium volatility fragrance which has a solubility parameter which is within plus or minus 38% of the solubility parameter value of the glycol system used. The medium volatility fragrance may be used as 100% of the overall fragrance in the cosmetic composition, but it must be included in a range of at least 10-40% of the overall fragrance in the cosmetic composition. The levels of fragrance used as a part of the total cosmetic composition will depend on the components used to form the base, but are generally in the range of 0.5 to 10% by weight of the total cosmetic composition, particularly in the range of 1.0-3.0%, or more particularly in the range of 1.5 to 2.5% wherein no more than 50% of the fragrance is a solvent or carrier.

The solubility parameter of the fragrance should also be matched as closely as possible to the solubility parameter of the multi-component mixture. The basic concept of measuring solubility parameters is known from the packaging art and is an expression of the sum of all intermolecular attractive forces empirically related to the mutual solubility of many chemical species. Solubility parameters may be calculated using methods found in the literature, for example, in the CRC Handbook of Solubility Parameters and Other Cohesion Parameters, by A. F. Barton (second edition, 1991). Also, software is now available to make such calculations easier, for example, using the Sybyl Molecular Modeling Program 6.03 (available from Tripos Associates, St. Louis, Mo.) to calculate Hildebrand solubility parameters using a structure-property based model. The unit of a solubility parameter measurement is the square root of mole-Pascal.

Sample values for selected solubility parameters include the following:

Solubility parameters for isocetyl alcohol: Solvent molecular weight=242.45 g/mole;

Hildebrand Parameter=17.3 MPa.sup.(1/2)

Solubility parameters for isostearyl alcohol: Solvent molecular weight=270.50 g/mole;

Hildebrand Parameter=17.1 MPa.sup.(1/2)

Other examples of values for solubility parameters include:


______________________________________
Alcohol or Glycol
Solubility Parameter (MPa.sup.1/2)
______________________________________
propylene glycol 26.5
MP-Diol 24.7
dipropylene glycol 21.9
tripropylene glycol 20.0
polypropylene glycol - PPG-9 18.2
isocetyl alcohol 17.3
isostearyl alcohol 17.1
______________________________________
______________________________________
Solubility
Fragrance Parameter (MPa.sup.1/2)
______________________________________
Patchouli alcohol (major component of
13.9
Patchouli oil)
Linalyl acetate (3,7-dimethyl-1,6-octadien-3-yl- 16.2
acetate
Tonalid (6-acetyl-1,1,2,4,4,7- 17.2
hexamethyltetraline)
Linalool (3,7-dimethyl-1,6-octadien-3-ol) 18.1
Moskene (1,1,3,3,5-pentamethyl-4,6- 20.1
dinitroindan)
Ethyl vanillin (3-ethoxy-4- 20.9
hydroxybenzaldehyde)
______________________________________



Examples of suitable fragrances include, but are not limited to, fragrances composed of the following materials having a vapor pressure in the range of 0.01 and 0.0001 mm Hg.


______________________________________
Aroma Chemical - (Chemical Name)
Vapor Pressure (mm Hg)
______________________________________
Amyl Cinnamate (isopentyl-3-
0.0003
phenylpropenoate)
Amyl Salicylate 0.003
(orthohydroxybenzoate)
Cedramber (cedryl methyl ether) 0.0008
Citronellol (3,7-dimethyl-6-octen-1-ol) 0.009
Dihydroeugenol (2-methoxy-4- 0.003
propylphenol)
Eugenol (2-methoxy-4-allyl phenol) 0.009
Heliotropine (3,4-methylene- 0.003
dioxybenzaldehyde)
Hexenyl Cinnamate (beta-gamma- 0.0001
hexenylphenyl acrylate)
Hexyl Salicylate (n-hexyl-ortho- 0.0007
hydroxybenzoate)
Indol (2,3-benzpyrrole) 0.007
Ionone Beta (4-(2,6,6-trimethyl-1- 0.006
cyclohexen-1-yl)-3-buten-2-one)
______________________________________
______________________________________
Iso E Super (7- 0.002
acetyl,1,2,3,4,5,6,7,8-octahydro-
1,1,6,7-tetramethyl naphthalene)
Iso Eugenol (2-methoxy-4- 0.003
propenylphenol)
Lillial (alpha-methyl-para-tertiary- 0.003
butylhydrocinnamic aldehyde)
Patchouli Alcohol 0.0001
Thymol (1-methyl-3-hydroxy-4- 0.009
isopropyl benzene)
______________________________________



The overall solubility parameter for each of (a) the medium volatility fragrance and (b) the base is calculated by using normal mathematical principles which sums the portion of each particular fragrance component used times the proportion of that component to the whole. Thus,

i=n

.SIGMA.a.sub.i .delta..sub.i

i=0

which may also be expressed as

i=n

.SIGMA.a.sub.i .delta..sub.i =a.sub.1 .delta..sub.1 +a.sub.2 .delta..sub.2 +a.sub.3 .delta..sub.3 +. . . a.sub.n .delta..sub.n

i=0

where a.sub.1 +a.sub.2 +a.sub.3 +a.sub.n =1

Note that the actual values for the solubility parameters of glycols are close to their theoretical values.

The following two examples of bases show how a single or mixed glycol system can be calculated and matched to a suitable fragrance component on the basis of solubility parameters. In Base I a single glycol, namely propylene glycol, is used in an amount of 70% by weight based on the total weight of the cosmetic product. This component has a solubility parameter of 26.5. In Base II, 14% of propylene glycol having a solubility parameter of 26.5; 35% of dipropylene glycol having a solubility parameter of 21.9; and 21% of tripropylene glycol having a solubility parameter of 20.0 are combined to give a glycol component of 70% by weight based on the total weight of the composition. This mixed glycol component has an overall solubility parameter of 22.25 (calculated by factoring in the various amounts of each component and their particular solubility parameter). Base II would be easier to match to a fragrance listed above on the basis of solubility parameter because 22.25 is closer to the fragrance having a solubility parameter of 20.9 than Base I which has a solubility parameter of 26.5.

An additional feature of this invention is the ability of the cosmetic compositions to sequester various components of malodor in the base. While it is not known exactly how this is achieved, it has been found that the improved performance of deodorant and antiperspirant/deodorant products made according to this invention not only allow for prolonged release and intensity of fragrance, but such products also allow the absorption of a substantial portion (for example, at least 50%, preferably at least 80% and more preferably from 80-100%) of the malodor components of human perspiration, thereby further reducing odor problems associated with sweating.

Other optional ingredients may be included in the cosmetic formulations. In underarm products, especially in deodorant formulations, it may be desirable to add an antibacterial agent. Known bacteriostats include, but not limited to, bacteriostatic quaternary ammonium compounds (for example, cetyl-trimethylammonium bromide), 2-amino-2-methyl-1-propanol (AMP), cetyl pyridinium chloride, 2, 4, 4'-trichloro-2'-hydroxydiphenylether (Triclosan), N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea Triclocarban) and various zinc salts (for example, zinc ricinoleate). The bacteriostat can, illustratively, be included in the composition in an amount of 0.01-2.0%, particularly 0.1-1.0% by weight, of the total weight of the composition. Triclosan, can illustratively be included in an amount of from 0.01% to about 0.5% by weight, of the total weight of the composition and is preferred.

Gelling agent may also be used, especially if stick forms are desired. Suitable gelling agents include at least one member of the group consisting of metallic soaps sodium stearate (for example, sodium stearate and/or sodium isostearate), dibenzylidene sorbitol, a mixed glycol system in combination with dibenzylidene sorbitol, and mixtures of the foregoing. For example, U.S. Pat. No. 5,635,164 describes the use of stearyl alcohol as a gelling agent with sodium chloride as a clarifying agent.

Anti-irritants can also be included in amounts of up to 2% by weight based on the total weight of the composition such as those selected from the group consisting of PEG-40 through PEG-100 Diisostearates (especially PEG-90 Diiostearate available from Scher Chemicals, Inc., West Clifton, N.J.); esters of polyurethane and hydrogenated castor oil; alpha-bisabolol (also called 1-methyl-4-(1,5-dimethyl-1-hydroxyhex4-enyl)cyclohexene); Polyolprepolymer-15 (having a CTFA name of P-8/SMDI Copolymer and a CAS name of poly(oxy- 1 ,2-ethandiyl)-alpha-hydro-omega-hydroxy polymer with 1,1'methylene-bis-(4-isocyanatocyclohexxane)) and available from Penederm Inc., Foster City, Calif.; QuenchT (extracts of mate, kola, and guarana) available from Centerchem, Inc., Stamford, Conn.; solid water soluble polymers containing ethoxylated hydrogenated castor oil (for example, PEG-200 hydrogenated castor oil polymer with IPDI available from Alzo Inc., Matawan, N.J.); PEG-60 almond glycerides (for example, Crovol A-70 available from Croda, Inc. (New York, N.Y.), PEG-20 almond glycerides (Crovol A-40) and mixtures of the foregoing.

Emollients and surfactants may also be included, especially those selected from the group consisting of:

(a) alkoxylated alcohols with a carbon chain length between 2-20 carbons--For example, alkoxylated alcohols wherein the alcohol portion is selected from aliphatic alcohols having 2-18 and more particularly from 4 to 18 carbons, and the alkylene oxide portion is selected from the group consisting of ethylene oxide, polyoxyethylene, and polyoxypropylene having a number of alkylene units from 2-53 (and more particularly from 2 to 15 units) are especially useful. Particular examples include Laureth-4 and Isosteareth-21.

(b) polymeric ethers--for example, Poloxamer 407.

(c) alkoxylated amines--for example, Poloxamine 1307 and Poloxamine 908.

(d) alkoxylated carboxylic acids with a carbon chain length between 2-20 carbons--for example, PEG-100 stearate, PEG-90 Diisostearate.

Examples of suitable materials include isostearyl isostearate, isostearyl palmitate, benzyl laurate, PEG 12 and especially alkyl benzoates such as C 12-C 15 linear alkyl benzoates. The non-volatile emollients can include mixtures. Examples of such mixtures include isostearyl isostearate and C12-C15 alkylbenzoate; and isostearyl benzoate and benzyl laurate.

The compositions of this invention can range from clear to opaque.

Coloring agents may also be used, for example, in an amount of 0.00001-0.5%.

Additional additives for odor absorption can also be included such as sodium bicarbonate.

In one particular stick product a base can be made by combining 10-21% tripropylene glycol; 25-35% dipropylene glycol; 14-24% propylene glycol, 5-10% of at least one gelling agent, where the amounts are based on the total weight of the final cosmetic composition.

Another particular stick product base can be made by combining 10-21% (especially 21%) tripropylene glycol; 25-35% (especially 35%) dipropylene glycol; 14-24% (especially 14%) propylene glycol, 5-10% of at least one gelling agent such as sodium stearate (for example, 7% sodium stearate), 0.05-0.5% (especially 0.2%) stearyl alcohol, 0.05-1.0% (especially 0.5%) sodium chloride, 1.5-2.5% (especially 2%) fragrance, 0.0001-0.005% (especially 0.0014%) coloring agent and 0.05-0.25 (especially 0.05%) of Triclosan, and the remainder as water, where the amounts are based on the total weight of the final cosmetic composition.

The compositions of the invention can be made using conventional techniques. For example, when glycols are used in the multi-component base to make a stick deodorant the following method may be used:

(a) heat the glycols to a temperature of about 85 degrees C.;

(b) add the gelling agent, such as sodium stearate, until it is solubilized in the glycols (water may be added as needed);

(c) cool the mixture to about 80 degrees C.;

(d) optionally add other processing aids such as stearyl alcohol and sodium chloride;

(e) cool the mixture slightly to about 78 degrees C.;

(f) add the fragrance and Triclosan;

(g) cool the mixture to about 70-75 degrees for pouring into containers to cool to room temperature.

Sample formulations for suitable products useful with this invention include the following wherein the amounts are in percent by weight based on the total weight of the composition and anti-irritancy agent is optional:


______________________________________
range of
Ingredient ingredients preferred range
______________________________________
Solid
Solid #1
Solvent (selected from a range of 5-88% 60-75%
glycols)
water 1-50% 10-20%
compatible gelling agent 1-10% 4-8%
emollient 0-5% 1-2%
antibacterial agent 0.01-2.0% 0.05-0.5%
anti-irritancy agent 0.1-10% 1-3%
fragrance 0.1-10% 1-3%
Solid #2 (deodorant)
glycol component 60-98% 65-75%
(as described above)
sodium stearate 0-10% 6-8%
water 0-40% 10-25%
fragrance 0.1-10% 0.5-3%
Solid #3 (antiperspirant/deodorant)
glycol component 60-98% 80-95%
(as described above)
dibenzylidene sorbitol 0-5% 1-3%
aluminum zirconium 0-20% 5-15%
glycine complex
fragrance 0-10% 0.5-3
Soft solid
Soft Solid #1
solvent (selected from a range of 5-88% 60-75%
glycols)
water 1-50% 10-20%
ethanol 1-10% 2-5%
compatible gelling agent 1-10% 4-8%
emollient 0-10% 3-5%
antibacterial agent 0.01-2.0 0.05-0.5%
anti-irritancy agent 0.1-10% 1-3%
fragrance 0.1-10% 1-3%
Soft Solid #2 (antiperspirant/deodorant)
fatty alcohols 60-80% 60-70%
volatile silicone 0-40% 10-30%
aluminum zirconium 10-30% 15-25%
glycine complex
dimethicone copolyol 0-3% 0.3-0.8%
surfactant
clays 0-5% 1-3%
fragrance 0.1-10% 1-3%
Flowable gel
Gel #1
solvent (selected from a range of 5-88% 40-50%
glycols)
water 1-50% 25-40%
ethanol 1-10% 2-5%
compatible gelling agent 1-10% 4-8%
emollient 0-10% 3-5%
antibacterial agent 0.01-2.0% 0.05-0.5%
anti-irritancy agent 0.1-10% 1-3%
fragrance 0.1-10% 1-3%
Gel #2
glycol component 60-80% 60-70%
(as described above)
volatile silicone 0-40% 20-30%
water 0-20% 0-10%
aluminum zirconium 10-30% 15-25%
glycine complex
dimethicone copolyol surfactant 0-2% 0.5-1.5%
fragrance 0.1-10% 1-3%
Cream
Cream #1
solvent (selected from a range of 5-88% 10-20%
glycols)
water 1-50% 40-60%
compatible gelling agent 1-10% 4-8%
emollient 0-10% 6-8%%
Surfactant (Emulsulfier) 1-10% 3-5%
antibacterial agent 0.01-2.0 0.05-0.5%
anti-irritancy agent 0.1-10% 1-3%
fragrance 0.1-10% 1-3%
Cream #2
solvent blend 60-48% 60-70%
(glycol based)
stearic acid 0-5% 3-5%
water 0-40% 10-30%
ethyl alcohol 0-5% 1-3%
color (optional) 0-1% 0.05-0.07%
fragrance 0.1-10% 1-3%
Cream #3 (beeswax cream)
isopropyl myristate 40-50% 45-49%
(or C16-C24 fatty alcohol
beeswax 10-15% 12-5%
sorbitan stearate 1-3% 1.5-2%
polysorbate-60 3-4% 3.5-3.9%
water 10-25% 10-15%
glycol mixture 10-25% 15-25%
fragrance 0.1-10% 1-3%
Roll-on
Roll-on #1 (antiperspirant deodorant)
glycol component 60-80% 60-70%
volatile silicone 0-40% 20-30%
water 0-10% 2-5%
aluminum zirconium 10-30% 15-20%
glycine complex
dimethicone copolyol 0-3% 0.3-0.8%
surfactant
fragrance 0-10% 1-3%
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PATENT EXAMPLES This data is not available for free
PATENT PHOTOCOPY Available on request

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