Source: http://www.google.fr/patents/US4382079
Timestamp: 2013-05-20 17:37:40
Document Index: 215199200

Matched Legal Cases: ['art 1', 'art 2', 'art 3', 'art 4', 'art 1', 'art 2', 'art 3', 'art 4', 'art 1', 'art 2', 'art 3', 'art 4', 'art 1', 'art 2', 'art 3', 'art 1', 'art 2', 'art 3', 'art 1', 'art 2', 'art 3', 'art 1', 'art 2', 'art 1', 'art 2', 'art 3']

Brevet US4382079 - Bicarbonate containing stick deodorant - Google�BrevetsRecherche Images Maps Play YouTube Actualit�s Gmail Drive Plus » Recherche avanc�e dans les brevets | Historique Web | Connexion Recherche avanc�e dans les brevets BrevetsThere is disclosed a stable cosmetic stick deodorant comprising a polyhydric alcohol solidified by a fatty acid soap and containing about 0.1 to 70% alkali metal bicarbonate without the use of bacteriostats, and the method of making said stick deodorants....http://www.google.fr/patents/US4382079?utm_source=gb-gplus-shareBrevet US4382079 - Bicarbonate containing stick deodorant Num�ro de publicationUS4382079 AType de publicationOctroi Num�ro de demande06/012,761 Date de publication3 mai 1983 Date de d�p�t16 f�vr. 1979 Date de priorit�25 oct. 1977 InventeursFrank W. Marschner Cessionnaire d'origineColgate/PalmoliveColgate-Palmolive Company Classification aux �tats-Unis424/65424/59 Classification coop�rativeA61K8/042A61Q15/00A61K8/0229A61K8/361A61K8/19 Classification europ�enneA61K 8/02M4A61K 8/04AA61K 8/36CA61K 8/19A61Q 15/00R�f�rencesCitations de brevets (9)Citations hors brevets (2) R�f�renc� par (50)Liens externesUSPTO Cession USPTO EspacenetBicarbonate containing stick deodorantUS 4382079 A R�sum� There is disclosed a stable cosmetic stick deodorant comprising a polyhydric alcohol solidified by a fatty acid soap and containing about 0.1 to 70% alkali metal bicarbonate without the use of bacteriostats, and the method of making said stick deodorants.
I claim: 1. A stable anhydrous deodorant stick comprising sodium or potassium bicarbonate as the essential deodorizing agent, and about 0-10% suspending agent, dispersed in a soap based gel which comprises about 20-90% by weight polyhydric alcohol gelled by about 2-15% by weight of an alkali metal salt of a C.sub.14 -C.sub.20 saturated fatty acid.
11. A method of preparing a stable anhydrous deodorant stick containing 0.1-70% by weight of sodium or potassium bicarbonate, which comprises mixing a bicarbonate powder with a heated solution comprising about 20-90% by weight of a polyhydric alcohol and an alkali metal salt of a saturated C.sub.14 -C.sub.20 fatty acid to form a homogeneous warm liquid product, pouring the warm liquid into molds and cooling to room temperature to solidify said liquid into a rigid deodorant stick.
The preferred suspending agents are the hydrophobically treated montmorillonite or hectorite clays available under the trademark "Bentone" which are prepared by reacting a clay such as bentonite or hectorite in a cation exchange system with a variety of amines. Different amines are reacted to obtain different Bentone suspending agents which may also differ in proportions of SiO.sub.2, MgO and Al.sub.2 O.sub.3, all of which have a particle size below about 5 microns and are commercially available from the NL Industries, Inc. The suspending agent is employed in amounts of about 0.1 to 10% and preferably 0.5 to 2% by weight of the total composition.
The method of making the aqueous bicarbonate-containing deodorant stick of instant invention generally comprises mixing an aqueous dispersion or solution of the bicarbonate plus suspending agent (when used) with a hot or heated solution of polyhydric alcohol, stearic acid and alkali metal hydroxide, preferably at about 160 perfume, colorants and other optional ingredients, (if any) to form a homogeneous liquid product; pouring the warm liquid into molds and cooling to room temperature. During the cooling period, gelation takes place and the resultant product assumes a rigid form which is capable of application to the skin by gently rubbing, whereby a thin film of said composition is deposited on the desired areas of the skin. The resultant rigid stick is transparent or opaque, depending on the amount of bicarbonate added and the particular ingredients employed. This stick is stable, i.e., there is no separation out of specific ingredients; and it possesses a good shelf-life, i.e., no syneresis or shrinkage occurs.
EXAMPLES 1-5 ______________________________________(Na Soap - Propylene Glycol - Water Based)Example      1       2       3     4     5______________________________________Part 1Propylene Glycol        53.45   53.35   52.45 50.45 45.45Stearic Acid 6.00    6.00    6.00  6.00  6.0019.1% Na.sub.2 O CausticSoda         3.60    3.60    3.60  3.60  3.60Part 2Deionized water        35.6    35.6    35.6  35.6  28.20Sodium Bicarbonate        --      0.1     0.1   3.0   --Sodium Bicarbonate(Micro pulverized)        --      --      --    --    15.00Bentone LT   --      --      --    --    0.50Part 3Perfume      1.00    1.00    1.00  1.00  1.00Triclosan (Bacterio-stat).sup.1  0.10    0.10    0.10  0.10  --Uvinul 400 (Ultravio-let absorber).sup.2        0.05    0.05    0.05  0.05  0.05Part 4FDC Blue #1 0.1%of Soln.     0.20    0.20    0.20  0.20  0.20        100.00  100.00  100.00                              100.00                                    100.00Visual Appearance        Trans-  Trans-  Trans-                              Trans-                                    O-        lucent  parent  parent                              lucent                                    paque        to O-        paquepH (10% AqueousSoln)        10.32   9.7     9.1   8.9   8.5______________________________________ .sup.1 4,2',4' trichloro2-hydroxy diphenyl ether .sup.2 2,4 dihydroxy benzophenone
The two solutions are mixed together and cooled to 125 F. The perfume, bacteriostat and Uvinul are admixed and added to the above mixture, followed by the addition of the coloring agent.
EXAMPLES 6 & 7 ______________________________________(Na Soap - Propylene Glycol - Ethanol - Water Based)Example             6        7______________________________________Part 1Propylene Glycol    32.80    32.80Ethanol (95%)       35.75    32.75Stearic Acid (B Grade)               6.00     6.0019.1% Na.sub.2 O Caustic Soda               3.60     3.60Part 2Deionized Water     20.00    20.00Sodium Bicarbonate  --       3.00Part 3Perfume             1.00     1.00Triclosan (Bacteriostat)               0.10     0.10Uvinul 400          0.05     0.05Butyl Stearate      0.50     0.50Part 4FDC Blue #1 0.1% aq. soln               0.20     0.20               100.00   100.00Visual Appearance   Opaque   OpaquepH                  9.5      8.8______________________________________
EXAMPLES 8 & 9 ______________________________________(Combining Stearic Acid with Sodium Carbonate)Example            8          9______________________________________Part 1Propylene Glycol   53.45      52.60Stearic Acid (B Grade)              6.00       6.00Trichlorocarbanilide (TCC)              0.15       --Part 2Deionized water    36.6       33.75Sodium Carbonate   2.4        2.40Sodium Bicarbonate --         3.00Bentone LT         --         0.50Methocel (thickener).sup.1              --         0.40Part 3Perfume            1.00       1.00Uvinul 400         0.05       0.05Triclosan (Bacteriostat)              0.05       -- Part 4FDC Blue #1 0.1% aq. Soln              0.30       0.30              100.00     100.00Visual Appearance  Transparent                         OpaquepH (10% aqueous Soln)              9.0        8.8______________________________________ .sup.1 hydroxy propylmethyl cellulose
EXAMPLES 13 & 14 ______________________________________Cream SticksExample                13      14Base                   A       C______________________________________Part 1Propylene Glycol       55.0    75.73Stearic Acid (Double pressed grade)                  6.0     --Stearic Acid (Triple Pressed grade)                  --      5.00Bentone LT             2.0     1.00Tallow Fatty Acid      --      1.00Part 2Water                  26.48   10.0Soda Ash (Sodium Carbonate)                  2.40    2.37Part 3Perfume                1.0     1.0Glycerol Monostearate  --      0.5Procetyl AWS (emulsifier).sup.1                  7.0     3.0D &amp; C Green 8 (2.75%)  0.08    --FDC Green 3 (0.1%)     0.04    --D &amp; C Red 19 (0.1%)    --      0.4                  100.00  100.0050%     Cream Stick    50%     Cream Stick   Base A                 Base C50%     Baking Soda    25%     Baking Soda   (Micropulver-          (Micropulver-   ized)                  ized)                  25%     Italian Talc100%                   100%______________________________________ .sup.1 polypropylene glycol (5 moles) of condensate of cetyl alcohol with 20 moles of ethylene oxide.
EXAMPLES 15 & 16 ______________________________________(Use of Potassium Bicarbonate)Example        15            16______________________________________Part 1Propylene Glycol          52.3          44.3Sodium Stearate          8.0           8.0Procetyl AWS   3.0           3.0Part 2Deionized water          35.0          35.0Potassium Bicarbonate          0             8.0Part 3Sodium Chloride          0.2           0.2Perfume        1.5           1.5          100.0         100.0Appearance     Translucent to                        Translucent to          Transparent   TransparentpH (10% aqueous solution)          10.5          9.5______________________________________
EXAMPLE 17 ______________________________________(Anhydrous Stick)Example              17______________________________________Propylene Glycol     75.8Sodium Stearate      8Procetyl AWS         4Sodium Bicarbonate (micropulverized)                10Bentone LT           0.5Perfume              1.5FDC Green #3 (0.1% in ethanol)                0.2                100.0Appearance           Greenish opaque                (with good aesthetics)______________________________________
Bentone LT is dispersed in propylene glycol and procetyl AWS solution with rapid mixing. Sodium stearate is dissolved in the mixture at about 185 bicarbonate powder is admixed followed by perfume and color. The product is poured into containers and cooled to form a solid stick.
EXAMPLE 18 ______________________________________(Substitution of Glycerine for Propylene Glycol)Example               18______________________________________Part 1Glycerine             50.00Stearic Acid (Double Pressed Grade)                 6.00Part 2Deionized water       35.83Soda Ash (Sodium Carbonate)                 2.40Part 3Perfume               1.50Triclosan (Bacteriostat)                 0.15Procetyl AWS          4.00D &amp; C Green #8 (2.75%)                 0.08FDC Green #3 (0.1%)   0.04                 100.00Appearance            Transparent______________________________________ Part 1 is prepared by dissolving stearic acid in glycerine at 160 F. Part 2 is prepared by dissolving soda ash in deionized water at 160 Part 1 is added gradually to Part 2 with mixing and cooled at 145 F. Part 3 ingredients are admixed and the solution is poured into containers and cooled to form a solid stick.
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