• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A process for producing a gel conditioning phase and a process for manufacturing a conditioning composition The present invention relates to a process for producing a gel conditioning phase which comprises: forming a "melt" in a the first container comprising the fatty alcohol and cationic component and from 0 to 15% by weight of water melt (a), the addition of the "melt" to a second container containing 50 to 60 ° C water (b), the wherein the temperature of the melt and water mixture in the second vessel (b) is controlled such that it is maintained at 56 to 65 ° C, preferably 58 to 62 ° C, more preferably 60 ° C, wherein the fatty alcohol contains from 8 to 22 carbon atoms and wherein the cationic component comprises from 0 to 70% by weight of the cationic component, the cationic surfactants have the formula n + r1r2r3r4, most preferably from 30 to 60%. by weight of component cationic active, and wherein r1, r2, r3 and r4 independently are alkyl or benzyl (c1-c30) and the process for the manufacture of a conditioning composition by forming a gel conditioning phase obtained by the process claimed, then adding the remaining ingredients.
    公开号:BR112015001663B1
    申请号:R112015001663
    申请日:2013-07-24
    公开日:2019-08-27
    发明作者:Casugbo Christia；Serridge David；Alan Hough John；Michael Naughton John；Flanagan Mark
    申请人:Unilever Nv；
    IPC主号:
    专利说明:

    "PROCESS FOR THE PRODUCTION OF A GEL CONDITIONING PHASE AND PROCESS FOR THE MANUFACTURE OF A CONDITIONING COMPOSITION"
    Field of Invention [001] The present invention relates to processes for the preparation of improved conditioning compositions.
    Background of the Invention [002] EP-A1-2,460,508 (P&G) describes a hair conditioning composition comprising a cationic surfactant, a high melting fatty compound and an aqueous vehicle. The manufacturing method involves the preparation of a premix that comprises cationic surfactants and fatty compounds, where the temperature of the premix is higher than a melting point of the fatty compound.
    [003] Publication WO 2008/055816 (Unilever) describes conditioner shampoo compositions comprising a gel network comprising a quaternary ammonium compound and a C12-C22 fatty alcohol. In the examples, cetyl alcohol is added to the water at 65 ° C with stirring at high speed and then followed by the addition of CTAC to produce a uniform dispersion at 65 ° C. This is then added to the aqueous solution, at room temperature, with moderate stirring.
    [004] WO 2007/136708 (P & G) describes hair care compositions comprising an aminosilicone. The preparation method comprises heating the deionized water to 85 ° C and mixing it in cationic surfactants and fatty compounds. The water is kept at 85 ° C until the components are homogenized, then the mixture is cooled to about 55 ° C and maintained at this temperature to form a gel matrix.
    [005] Despite the prior art, there is still a
    Petition 870190047516, of 05/21/2019, p. 8/39
    2/13 need to improve conditioning compositions.
    Description of the Invention [006] Consequently, and in a first aspect, a process is provided for the preparation of a gel conditioning phase, according to claim 1.
    [007] The co-fusion of fatty alcohol and cationic surfactant forms an isotropic phase. This means that the development of the structure, that is, the formation of the conditioning phase in lamellar gel, can be controlled by the temperature and mixing speed of the melt and water. The conditioning composition, ultimately produced using this gel conditioning phase, has superior conditioning capacity.
    [008] Conditioning compositions produced using a gel conditioning phase of the present invention are superior to products produced by mixing water, fatty alcohol and the cationic surfactant of about 70 ° C. Specifically, superiority manifests itself in superior conditioning benefits the next day, in which the superior conditioning benefits could be expected due to the increased deposition of solids, thereby leaving hair smooth and greasy the next day.
    [009] The improvement, therefore, is in the balance of thermal energy at the point of mixing the water with the co-melted.
    [010] If the water is too cold, therefore, it solidifies the melt, resulting in a poor mixing system and this ultimately provides a low viscosity composition. If the water temperature is too high, therefore, it is also very high at the point of mixing with the melt and therefore forms the vesicles. This also results in a lower viscosity in the conditioning composition formed with the resulting gel conditioning phase.
    Petition 870190047516, of 05/21/2019, p. 9/39
    3/13 [011] Preferably, the water in the second container is kept at 56 to 60 ° C and, more preferably, from 57 to 59 ° C.
    [012] Preferably, the co-melt comprises from 45 to 90% by weight the fatty alcohols of the co-melt.
    [013] Preferably, the fatty alcohol comprises 8 to 22 carbon atoms, more preferably 16 to 22. Fatty alcohols are usually compounds that contain straight chain alkyl groups. Examples of suitable fatty alcohols include cetyl alcohol, stearyl alcohol and mixtures thereof. The use of these materials is particularly preferred.
    [014] The fatty alcohol level in the conditioner of the present invention (not just the gel conditioning phase), in general, will be in the range of 0.01 to 10%, preferably 0.1% and 8%, most preferably 0.2% to 7%, most preferably 0.3% to 6% by weight of the composition. The weight ratio of the cationic surfactant to the fatty alcohol is ideally 1: 1 to 1:10, preferably 1: 1.5 to 1: 8, ideally 1: 2 to 1: 5. If the weight ratio of the cationic surfactant to the fatty alcohol is too high, this can lead to eye irritation from the composition. If it is too short, it can make hair wheeze for some consumers.
    [015] Preferably, the melt comprises from 10 to 40% by weight of the melt cationic component.
    [016] Suitable conditioning surfactants include those selected from cationic surfactants, used alone or in mixture. Preferably, the cationic surfactants have the Formula N + R 1 R 2 R 3 R 4 in which R 1 , R 2 , R 3 and R 4 , independently, are alkyl or benzyl (C1-C30). Preferably, one, two or three of R 1 , R 2 , R 3 and R 4 , independently, are alkyl (C4-C30) and the other group or groups
    Petition 870190047516, of 05/21/2019, p. 10/39
    4/13
    R 1 , R 2 , R 3 and R 4 are alkyl or benzyl (C1-C6). More preferably, one or two of R 1 , R 2 , R 3 and R 4> independently are alkyl (C6-C30) and the other groups R 1 , R 2 , R 3 and R 4 are alkyl or benzyl (C1-C6). Optionally, the alkyl groups can comprise one or more ester (-OCO- or COO-) and / or ether (-O-) bonds within the alkyl chain. The alkyl groups can optionally be substituted by one or more hydroxyl groups. The alkyl groups can be straight or branched and, for alkyl groups with 3 or more carbon atoms, cyclic. The alkyl groups can be saturated or can contain one or more carbon-carbon double bonds (for example, oleyl). The alkyl groups are optionally ethoxylated on the alkyl chain with one or more ethylenoxy groups.
    [017] Cationic surfactants suitable for use in the present invention include cetyltrimethylammonium chloride, beenyltrimethylammonium chloride, cetylpyridinium chloride, tetramethylammonium chloride, tetraethylammonium chloride, octyltrimethylammonium chloride, dodecylmethyl chloride, dodecylmethyl chloride , decyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, didodecyldimethylammonium chloride, dioctadecyldimethylammonium chloride, sebotrimethylammonium chloride, dihydrogenated sebodimethylammonium chloride (for example, 2-D, 3-Hegotamethyl and 3-Chloride), their corresponding hydroxides. Other suitable cationic surfactants include materials that have the denominations CTFA Quaternium-5, Quaternium31 and Quaternium-18. Mixtures of any of the above materials may also be suitable.
    [018] A cationic surfactant particularly useful for use in conditioners of the present invention is cetyltrimethylammonium chloride, commercially available, for example, as Genamin
    Petition 870190047516, of 05/21/2019, p. 11/39
    5/13
    CTAC, former Hoechst Celanese. Another cationic surfactant particularly useful for use in conditioners according to the present invention is beenyltrimethylammonium chloride, commercially available, for example, as Genamin KDMP, formerly Clariant.
    [019] Preferably, the cationic component of the co-melt comprises from 0 to 70% by weight of the cationic component, the cationic surfactants have the Formula N + R 1 R 2 R 3 R 4 , as described above, most preferably 30 60% by weight of the cationic component.
    [020] Another example of a class of cationic surfactants suitable for use in the present invention, alone or in conjunction with one or more other cationic surfactants, is a combination of (i) and (ii) below:
    (i) an amidoamine corresponding to General Formula (I):
    R1 CONH (CH2) mN (R2) R3
    - where R 1 is a hydrocarbyl chain containing 10 or more carbon atoms, R 2 and R 3 , independently, are selected from hydrocarbonyl chains of 1 to 10 carbon atoms, and m is an integer from 1 to about 10; and (ii) an acid.
    [021] As used herein, the term "hydrocarbyl chain" means an alkyl or alkenyl chain.
    [022] The preferred amidoamine compounds are those that correspond to Formula (I) in which
    - R 1 is a hydrocarbyl residue containing from about 11 to about 24 carbon atoms,
    - R 2 and R 3 'independently are each hydrocarbyl residues, preferably alkyl groups, containing from 1 to about 4 carbon atoms, and is an integer from 1 to about 4.
    Petition 870190047516, of 05/21/2019, p. 12/39
    6/13 [023] Preferably, R 2 and R 3 are the methyl or ethyl groups.
    [024] Preferably, m is 2 or 3, that is, an ethylene or propylene group.
    [025] The preferred amidoamines useful herein include the estearamidopropildimetilamina, estearamidoetildietilamina, palmitamidopropildimetilamina, palmitamidoetildietilamina, beenamidopropildimetilamina, beenamidoetildietilamina, araquidamidopropildimetilamina, estearamidopropildietilamina, estearamidoetildimetilamina, palmitamidopropildietilamina, palmitamidoetildimetilamina, beenamidopropildietilamina, beenamidoetildimetilamina, araquidamidopropildietilamina, araquidamidoetildietilamina, araquidamidoetildimetilamina, and mixtures thereof.
    [026] Useful amidoamines particularly preferred in the present are stearamidopropyl dimethylamine, stearamidoethyldiethylamine, and mixtures thereof.
    [027] Useful commercially available amidoamines at present include: stearamidopropyl dimethylamine with trade names Lexamine S-13 available from Inolex (Philadelphia, Pennsylvania, USA) and Amidoamine MSP available from Nikko (Tokyo, Japan), stearamidoethyldiethylamine with a trade name of Amidoamine S available from Nikko, beenamidopropyl dimethylamine with a trade name of Incromine BB available from Croda (North Humberside, England), and several amidoamines with trade names from the Schercodine series available from Scher (Clifton New Jersey, USA).
    [028] The acid can be any organic or inorganic acid that is capable of protonating amidoamine in the conditioning composition. Suitable acids useful in the present invention include hydrochloric acid, acetic acid, tartaric acid, fumaric acid, lactic acid,
    Petition 870190047516, of 05/21/2019, p. 13/39
    7/13 malic acid, succinic acid, and mixtures thereof. Preferably, the acid is selected from the group consisting of acetic acid, tartaric acid, hydrochloric acid, fumaric acid, lactic acid and mixtures thereof.
    [029] The main role of the acid is to protonate amidoamine in the hair treatment composition, thereby forming a tertiary amine salt (TAS) in situ in the hair treatment composition. TAS is actually a cationic surfactant of non-permanent quaternary ammonium or pseudoquaternary ammonium.
    [030] Suitably, the acid is included in an amount sufficient to protonate an amount greater than 95 mol% (293 K) of the amidoamine present.
    [031] If an amidoamine of the type described herein is present, therefore, the corresponding acid component will not be present in the fused. Instead, it will be present in the second container with the water. Preferably, the water in the second container comprises a protonation component of 0.01 to 3% by weight.
    [032] Consequently, when the present invention requires 10 to 40% by weight of the fused cationic surfactant, the cationic surfactant component may comprise amidoamine that is not protonated, that is, it will not be charged cationic, but will become protonated when added water and therefore its protonation material contained.
    [033] Preferably, the cationic surfactant component of the fused comprises from 0 to 70% of the cationic component, the amidoamine corresponding to Formula (I), more preferably, from 30 to 60% by weight of the cationic surfactant component.
    [034] In the conditioning compositions of the present invention (not just the gel conditioning phase), the level of the cationic surfactant, in general, will vary from 0.01% and 10%, more preferably, from 0.05%
    Petition 870190047516, of 05/21/2019, p. 14/39
    8/13 to 7.5%, most preferably 0.1% to 5% by weight of the composition.
    [035] Preferably, the melt is kept at a melting point sufficient to keep the fatty alcohol in a liquid phase. Preferably, the melt is maintained at 80 to 85 ° C.
    [036] Preferably, the temperature of the mixture of the co-melt and the water is controlled in such a way that it is maintained at 56 to 65 ° C, more preferably from 58 to 62 ° C, most preferably at 60 ° C during mixing.
    [037] Preferably, the contents of the first container are gradually added to that of the second container and passed through a mixer with rotor peripheral speed from 10 to 34, preferably from 21 to 27 and, especially preferably from 24 ms - 1 .
    [038] Preferably, this mixing step is maintained long enough for 95% v / v of the melt / water mixture to have passed through the mixer at least once. This is typically 20 to 40 minutes.
    [039] In a second aspect, a process is provided for the manufacture of a conditioning composition by forming a gel conditioning phase obtained by the first aspect and then adding the remaining ingredients. The typical remaining ingredients include fragrances, silicones, fiber actives or other beneficial agents.
    [040] Preferably, the conditioning composition is passed through a mixer with a rotor peripheral speed of 10 to 34, preferably from 21 to 27 and, especially preferably, from 24 ms-1, again after rest of the ingredients are added.
    [041] The conditioning compositions of the present invention or the use of the gel conditioning stages of the present invention also deposit the silicone better than the conditioning compositions
    Petition 870190047516, of 05/21/2019, p. 15/39
    9/13 conventionally produced.
    [042] Consequently, the compositions of the present invention may contain the emulsified droplets of a silicone conditioning agent, to enhance conditioning performance.
    [043] Suitable silicones include polydiorganosiloxanes, in particular, polydimethylsiloxanes bearing the CTFA denomination of dimethicone. Also suitable for use in the compositions of the present invention (particularly shampoos and conditioners) are polydimethylsiloxanes with hydroxyl end groups, which bear the designation CTFA of dimethicone. Also suitable for use in the compositions of the present invention are silicone gums with a slight degree of crosslinking, as described, for example, in publication WO 1996/31188.
    [044] The viscosity of the emulsified silicone itself (not the emulsion or the final hair conditioning composition) is usually at least 10,000 cst at 25 ° C, the viscosity of the silicone itself is preferably at least , 60,000 cst, most preferably at least 500,000 cst, most preferably of at least 1,000,000 cst. Preferably, the viscosity does not exceed 10 9 cst for ease of formulation.
    [045] Emulsified silicones for use in the shampoo compositions of the present invention will normally have an average silicon droplet size in the composition of less than 30, preferably less than 20, more preferably less than 10 microns, preferably 0.01 to 1 micron. Silicone emulsions that have an average silicone droplet size of 0.15 microns are generally called microemulsions.
    [046] Emulsified silicones for use in the conditioning compositions of the present invention will normally
    Petition 870190047516, of 05/21/2019, p. 16/39
    10/13 have a size in the composition of less than 30, preferably less than 20, more preferably less than 15. Preferably, the average silicone droplet is greater than 0.5 micron, more preferably greater than 1 microns, most preferably 2 to 8 microns.
    [047] The size of the silicon particle can be measured using a laser light scattering technique, for example, using a 2600d Particle Sizer from Malvern Instruments.
    [048] Examples of suitable preformed emulsions include Xiameter MEM 1785 and DC2-1865 microemulsion available from Dow Corning. These are dimethiconol emulsions / microemulsions. Cross-linked silicone gums are also available in a pre-emulsified form, which is advantageous for ease of formulation.
    [049] Another preferred class of silicones for inclusion in shampoos and conditioners of the invention is the functional amino silicones. The term "functional amino silicone" means a silicone that contains at least one primary, secondary or tertiary amino group or a quaternary ammonium group. Examples of suitable amino functional silicones include: polysiloxanes with the CTFA designation "amodimethicone".
    [050] Specific examples of amino functional silicones suitable for use in the present invention are the aminosilicone oils DC2-8220, DC2-8166 and DC2-8566 (all from the former Dow Corning).
    [051] Suitable quaternary silicone polymers are described in patent EP-A-0.530.974. A preferred quaternary silicone polymer is ο K3474, formerly Goldschmidt.
    [052] Emulsions of amino functional silicone oils with non-ionic and / or cationic surfactants are also suitable.
    [053] Preformed emulsions of amino functional silicone
    Petition 870190047516, of 05/21/2019, p. 17/39
    11/13 are also available from silicone oil suppliers, such as Dow Corning and General Electric. Specific examples include the cationic emulsion DC939 and the nonionic emulsions DC2-7224, DC2-8467, DC2-8177 and DC2-8154 (all from the former Dow Corning).
    [054] The total amount of silicone is preferably 0.01% by weight to 10% by weight of the total composition, more preferably 0.1% by weight to 5% by weight, most preferably , from 0.5% by weight to 3% by weight is an appropriate level.
    Examples
    First name INCI Asset Level THE 1 Beenyltrimethylammonium chloride 70 2.86 2.28 Dimethicone chloride / amodimethicone / cetrimonium 70 4.29 4.29 Cetearyl alcohol 100 4 3.2 DMDM hydantoin 55 0.1 0.1 Potassium chloride 100 0.1 0.1 perfume 100 0.6 0.6 Methylisothiazolinone 100 0.04 0.04 Methylchloroisotaizolinone Aqua 100 to 100 to 100
    [055] Formulation A is produced by conventional processes that involve heating fatty alcohol and cationic surfactant in water to about 70 ° C while a formulation is produced by adding cationic surfactants to fatty alcohol and stirring at 85 ° Ç.
    [056] Gradually add this mixture to the water, which contains other ingredients, usually at 55 ° C, but at a temperature adapted to the composition to ensure that the temperature of the mixture is 60 ° C, this temperature is maintained through external heating , necessary case,
    Petition 870190047516, of 05/21/2019, p. 18/39
    12/13 and agitation.
    [057] Cool this to room temperature by adding more water, and other ingredients to room temperature, and using external cooling, if necessary, and stirring.
    [058] The compositions have different levels of conditioning assets to demonstrate the improved performance of the conditioning composition produced through the claimed process.
    THE 1 Number of panel members 32 32 Conditioner in use Conditioner thickness 49.84 C 64.88 B Ease of application 70.17 C 80.12 A Ease of spreading 72.73 B 79.16 Clearance 67.89 B 73.74 A Dry Dry residue 7.20 b 9.48 ab Following day Oiliness the next day 17.43 BC 13.31 C Static the next day 9.68 A 7.27 BCD Feeling of cleanliness the next day 69.41 AB 71.33 A Conditioning the next day 65.65 B 70.47 A
    Panel data with about 40 panel members with damaged hair. Evaluation using the line scale.
    [059] Panel data with about 40 panel members with damaged dry hair. Evaluation using the line scale. (5 different products tested in total versus the control).
    [060] The data show that with the use of a better process, a thicker product is obtained, despite having total solids
    Petition 870190047516, of 05/21/2019, p. 19/39
    Lower 13/13 (ie FA and BTAC). The ingredients are used more efficiently.
    [061] Furthermore, the product is significantly more conditioned than the control, as well as the feeling of significant cleanliness the next day - unusual, since there is usually a new alternation (more conditioned = heavier), despite presenting a level lower solids, that is, conditioning assets. One would expect that a composition that provided enhanced conditioning benefits immediately after application would achieve this by increasing deposition. However, if this were the case, the next day's benefits would be greatly reduced.
    权利要求:
    Claims (8)
    [1]
    Claims
    1. PROCESS FOR THE PRODUCTION OF A GEL CONDITIONING PHASE, characterized by comprising:
    formation of a “co-melt” in a first container comprising fatty alcohol and cationic component and from 0 to 15% by weight of water co-melt (A) addition of the “co-melt” to a second container containing 50 to 60 ° water C (B) mixture in which the temperature of the mixture of the molten and water in the second container (B) is controlled in such a way that it is maintained at 56 to 65 ° C, preferably from 58 to 62 ° C, more preferably , 60 ° C, in which the fatty alcohol contains 8 and 22 carbon atoms, and in which the cationic component comprises from 0 to 70% by weight of Formula N + R 1 R 2 R 3 R 4 cationic surfactant, from more preferably, from 30 to 60% by weight of the cationic surfactant component, and in which R 1 , R 2 , R 3 and R 4> independently, are alkyl or benzyl (C1-C30).
    [2]
    2. PROCESS, according to claim 1, characterized in that the co-melt comprises 45 to 90% by weight of the co-melted fatty alcohol.
    [3]
    3. PROCESS according to any one of claims 1 to 2, characterized in that the co-melt comprises 10 to 40% cationic surfactant.
    [4]
    PROCESS according to any one of claims 1 to 3, characterized in that the melt is maintained at a melting point sufficient to maintain the fatty alcohol in a liquid phase (preferably from 80 to 85 ° C).
    [5]
    5. PROCESS, according to any of the
    Petition 870190047516, of 05/21/2019, p. 21/39
    2/2 claims 1 to 4, characterized in that the contents of the first container are gradually added to the second container and passed through a mixer with peripheral speed of the rotor from 10 to 34 ms -1 .
    [6]
    PROCESS according to any one of claims 1 to 5, characterized in that the second container comprises neutralizing agent, preferably lactic acid.
    [7]
    7. PROCESS FOR MANUFACTURING A CONDITIONING COMPOSITION, characterized by the formation of a gel conditioning phase, obtained as defined in any one of claims 1 to 6 and then adding any of the remaining ingredients.
    [8]
    PROCESS, according to claim 7, characterized in that it comprises the passage of the composition through a mixer with peripheral speed of the rotor from 10 to 30 ms -1 .
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    WO2021255047A1|2020-06-19|2021-12-23|Unilever Ip Holdings B.V.|Hair conditioning composition for improved deposition|
    WO2021255049A1|2020-06-19|2021-12-23|Unilever Ip Holdings B.V.|Hair conditioning composition for improved deposition|
    WO2021255048A1|2020-06-19|2021-12-23|Unilever Ip Holdings B.V.|Hair conditioning composition for improved deposition|
    WO2021255050A1|2020-06-19|2021-12-23|Unilever Ip Holdings B.V.|Hair conditioning composition for improved deposition|
    WO2021255046A1|2020-06-19|2021-12-23|Unilever Ip Holdings B.V.|Hair conditioning composition for improved deposition|
    法律状态:
    2018-06-05| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-05-07| B06T| Formal requirements before examination|
    2019-08-06| B09A| Decision: intention to grant|
    2019-08-06| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: A61K 8/34 , A61K 8/41 , A61Q 5/12 Ipc: A61K 8/04 (2006.01), A61K 8/34 (2006.01), A61K 8/4 |
    2019-08-27| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/07/2013, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/07/2013, OBSERVADAS AS CONDICOES LEGAIS |
    2021-02-09| B25A| Requested transfer of rights approved|Owner name: UNILEVER IP HOLDINGS B.V. (NL) |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12178171|2012-07-27|
    PCT/EP2013/065648|WO2014016354A1|2012-07-27|2013-07-24|Process|
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