ACULYN Rheology Modifiers

Transcription

1 Achieving Suspension in Body Washes Beyond cleansing, a number of functional ingredients are used in body washes either to provide additional aesthetic properties, or additional claims such as exfoliation or moisturization. These functional ingredients are in most cases either non-water soluble or have a different density than the surfactant matrix, and as a result, are difficult to stabilize as they tend to sediment or cream. Thus, these ingredients require an efficient suspension system. Dow Personal Care technologies can address this challenge through the use of ACULYN 38 or ACULYN 88 Rheology Modifiers. ACULYN 38 and ACULYN 88 Rheology Modifiers have different performance profiles in terms of suspension, rheological properties and clarity of the system and thus, depending on the ingredient to suspend, one of the two might be a better solution than the other. ACULYN 88 Rheology Modifier is often preferred for thick-pouring systems, whereas ACULYN 38 Rheology Modifier is recommended for thin-pouring systems. This is related to their relative efficiency in terms of viscosity building, as shown in the following graph. ACULYN Rheology Modifiers Tool Box ACULYN 88 ACULYN 88 + Laponite VISCOSITY ACULYN 38 SUSPENSION POWER The synergistic effect between ACULYN 88 Rheology Modifier and Laponite* will allow the formulator to further enhance the suspension capabilities of the formulation. Aculyn 38 and Aculyn 88 will also deliver differences in terms of clarity and may guide the formulator to pick the most appropriate grade. Aculyn 38 tends to give translucent to clear systems particularly in the ph range 7 whereas Aculyn 88 delivers crystal clear systems for ph > 6.5. While these polymers are complimentary in terms of obtaining successful stabilization and suspension in the usual body wash ph range, please find as follows two typical formulations illustrating the use of Aculyn 38 to stabilize pearlizing agents such as EGDS, and the use of Aculyn 88 to suspend beads or visual cues: * Laponite is a trademark of Rockwood Additives

2 PEARLIZED BODY WASH Featuring: ACULYN 38 Rheology Modifier KATHON CG Preservative Ingredients Phase Trade Name % Wt. INCI Name Supplier Water Water ACULYN 38 Rheology Modifier 7.58 Acrylates/Vinyl Neodecanoate Crosspolymer A Steol CS-230 (26%) Sodium Laureth Sulfate Stepan Sodium Hydroxide (10%) 0.95 Sodium Hydroxide Amphosol CA (30%) Cocamidopropyl Betaine Stepan Stepan Pearl Sodium Laureth Sulfate and Glycol Stearate Stepan Fragrance 0.20 Fragrance B Tween Polysorbate 20 Croda KATHON CG Preservative 0.10 Methylchloroisothiazolinone, Methylisothiazolinone Processing Instructions 1. Combine Phase A ingredients in order with mixing. 2. Pre-mix Fragrance and Tween 20. Charge to Phase A with mixing. 3. Charge Kathon CG Preservative with mixing. Product Characteristics Parameter Range Method Appearance Opaque, Pearlized Visual ph (as is) 6.10 ph Meter Viscosity cps Brookfield Viscometer, RV#5, 20 rpm Stability 3 Months at 45 C; 5 Freeze Thaw Cycles (15ºF/70ºF, 24 h Per Cycle) Visual

3 CLEAR SHOWER GEL Crystal Clear Shower Gel with Beads Suspension Featuring: ACULYN 88 Rheology Modifier KATHON CG Preservative VERSENE Chelating Agent Ingredients Phase Trade Name % Wt. CTFA / INCI Name Supplier DI, water Deionized Water A VERSENE Na2 Crystals 0.10 Disodium EDTA Laponite XLG (2% pre-mix) 10.0 Lithium Magnesium Sodium Silicate Rockwood ACULYN 88 Rheology Modifier 4.50 Acrylate/Steareth-20 Methacrylate Crosspolymer Medialan LD Sodium N-Lauroyl Sarcosinate Clariant B Comperlan COD 4.00 Cocamide DEA Cognis Miranol Ultra L Sodium Cocoamphoacetate Rhodia C KATHON CG Preservative 0.10 D Liposphere Methylchloroisothiazolinone, Methylisothiazolinone Calcium Sodium Borosilicate (and) Titanium Dioxide (and) Agar (and) Chromium Hydroxide Greens Lipo Processing Instructions 1. Disperse Laponite XLG powder into deionized water with stirring at 800 rpm; keep stirring at least 45 minutes to create a 2% pre-mix solution. 2. Add VERSENE NA2 Crystals to water. Mix well, and add in Laponite RD 2% pre-mix solution with stirring at 800 rpm, and continue stirring for at least 30 minutes. 3. Add ACULYN 88 Rheology Modifier into above solution, continuing mixing for about 15 minutes. 4. Add surfactants in Phase B one by one, and mix until uniform. 5. Add ingredients in Phase C, and mix until uniform. 6. Add beads and manually mix in gently. Product Characteristics Parameter Range Method Appearance Crystal clear Visual ph (as is) 7.35 ph meter Viscosity (cps) Spindle No.: LV#34, 5 rpm Stability 3 25ºC; 3 50ºC Aging test

4 Other body washes require suspension aids, such as formulations based on a combination of traditional surfactant and soaps. These combinations are very popular in Asia for their outstanding rinseability properties. Low or high molecular weight fatty acids can be used, and the lower molecular weight will be more soluble than the higher molecular weight fatty acid. The choice of the fatty acid will drive the selection of the suspension aid. Clear formulations can be achieved using lower molecular weight fatty acid and thus, in their presence, the preferred suspension aid is ACULYN 88 Rheology Modifier. Formulations based on combinations using higher molecular weight fatty acids require the use of ACULYN 38 Rheology Modifier to achieve efficient suspension since these types are even more insoluble in water. Transparency is not the key criteria here since the system will be opaque anyhow. EXFOLIATING SOAP/SURFACTANT MIXED-BASED SHOWER GEL Exfoliate dead skin, quick rinse off Featuring: ACULYN 88 Rheology Modifier NEOLONE 950 Preservative Ingredients Phase Trade Name % Wt. CTFA / INCI Name Supplier A Kortacid Lauric Acid Akzo Nobel Kortacid Myristic Acid Akzo Nobel Potassium Hydroxide pellets 5.94 Potassium Hydroxide J.T.Baker B Deionized Water Deionized Water Titriplex III 0.05 Disodium EDTA Merck D Emal 270 N (25% active) Sodium Laureth Sulfate Kao E Deionized Water Deionized Water ACULYN 88 Rheology Modifier 8.20 Acrylates/ Steareth-20 Methacrylate Crosspolymer Tego Betain L Cocamidopropyl Betaine Goldschmidt/ Degussa G PURENE Glycerin 2.50 Glycerin FD & C Blue1 (0.2% w/w solution) 0.10 Colorant Keystone NEOLONE 950 Preservative 0.10 Methylisothiazolinone H Cypress Green Jojoba Spheres (20/40) 0.20 Jojoba Beads DCM Personal Care Deionized Water q.s Deionized Water

5 Processing Instructions 1. Mix Kortacid 1299 and Kortacid 1499 in a beaker. Heat the mixture at a constant temperature until the mixture just melted (60-65 C). This will be Phase A. 2. In a separate metal container, add Titriplex III, deionized water (add in 10 % wt. extra of deionized water) and potassium hydroxide pellets one after another and stir well with a glass rod until potassium hydroxide is completely dissolved. Heat the container of solution to a temperature of about 65 C. This will be Phase B. 3. Add in Phase A slowly to Phase B with the help of an overhead stirrer at 500 rpm. Allow the saponification process to complete and observe that the final mixture is clear without any presence of clumps. This will be Phase C. 4. Add EMAL 270 N into Phase C. This will be Phase D. 5. Mix ACULYN 88 Rheology Modifier and deionized water together in another container. This will be Phase E. Add Phase E into Phase D slowly and gradually at 400 rpm. This will be Phase F. Remove the mixture from heat. 6. Add in Tego Betain L7, Glycerin and Colorant one after another into Phase F. Add in NEOLONETM 950 Preservative at below 45 C. This will be Phase G. 7. Finally, add Cypress Green Jojoba Spheres into Phase G and manually mix in gently. (NB: Avoid subjecting Jojoba spheres to vigorous stirring). 8. Top up deionized water to 100%. Product Characteristics Parameter Range Method Appearance Clear Visual ph (as is) ph meter Viscosity (cps) Spindle No.: LV#3; Speed: 12 rpm Stability 3 Months / 5ºC, 25ºC & 45ºC Visual

6 PREMIUM SOAP/SURFACTANT MIXED-BASED CONDITIONING SHOWER GEL Milky appearance, mild gel Featuring: OPULYN 301 Opacifier ACULYN 38 RheologyModifier NEOLONE MxP Preservative Ingredients Phase Trade Name % Wt. INCI Name Supplier Palmera Lauric Acid 3.00 Lauric Acid Taiko Palm-Oleo A Palmera Myristic Acid 5.00 Myristic Acid Taiko Palm-Oleo Palmera Palmatic Acid 2.00 Palmatic Acid Taiko Palm-Oleo Deionized Water Deionized Water B VERSENE Chelating Agent 0.10 Disodium EDTA Potassium Hydroxide 2.95 Potassium Hydroxide SCRC* PURENE Glycerin 4.00 Glycerin C Comperlan 100C 2.00 Cocamide MEA Cognis Cutina AGS 1.00 Glycol Distearate Cognis D Rhodapon ESWX (25%) (pre-diluted) 6.00 Sodium Laureth Sulfate Rhodia Plantacare 1200 UP 3.00 C12-16 Fatty Alcohol Glucoside Cognis MIRATAINE CAB-WX 6.00 Cocamidopropyl Betaine Rhodia E Deionized Water 6.50 Deionized Water ACULYN 38 Rheology Modifier 3.50 Acrylates/Vinyl Neodecanoate Crosspolymer F Luviquat Ultracare 0.50 Polyquaternium-44 BASF G NEOLONE MxP Preservative 0.50 Methylisothiazolinone, Methylparaben, Phenoxyethanol, Propylparaben OPULYN 301 Opacifier 1.00 Styrene/Acrylates Copolymer H Deionized Water 4.00 Deionized water *SCRC: Sinopharm Chemical Reagent Co., Ltd.

7 Processing Instructions 1. Mix fatty acid in a beaker. Heat the mixture at a constant temperature until the mixture melts (70 C -75 C). This will be Phase A. 2. In a separate container, add ingredients in Phase B one by one (add in 10% wt. extra of deionized water), stir well to completely dissolve. Heat the container of solution to a temperature of about 70 C 75 C. 3. Add in Phase A slowly into Phase B with the help of stirring, maintaining the temperature at 70 C-75 C. Allow the saponification process to complete and observe that the final mixture is clear without the presence of any clumps. 4. Remain temperature and add ingredients in Phase C one by one into above soap base solution, keep stirring until met well. 5. Remove heat from mixture, and add ingredients in Phase D one by one, mixing until uniform. 6. Add pre-diluted solution of ACULYN 38 Rheology Modifier slowly and gradually into mixture, mixing until the solution is free of any clumps. 7. Add in Luviquat Ultracare, mix until uniform. 8. Cool down to the room temperature and add in NEOLONE MxP, mix until uniform. 9. Dilute OPULYN 301 Opacifier with 4 times of deionized water, add into mixture slowly with good stirring, mix until uniform. 10. Top up deionized water to 100%. Product Characteristics Parameter Range Method Appearance Milky White Visual ph (as is) 9.48 ph Meter Viscosity (cps) 7258 Spindle No.: LV#4; Speed: 10 rpm Stability 3 50 C Aging Test

8 Contact Us For sample requests or other information, please contact your local Dow Personal Care representative or visit From North America Toll-free: Toll call: Fax: From Europe, India, Africa and the Middle East Toll-free*: Toll call: Toll-free for Italy: Toll-free for South Africa: Fax: *Toll-free from Austria, Belgium, Denmark, Finland (prefix 990), France, Germany, Hungary, Ireland, The Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom From Asia Pacific Toll-free**: Toll call: Toll-free fax**: Toll fax: **Toll free from Korea, Japan, China, Taiwan, Hong Kong, Thailand, Malaysia, Singapore, Philippines, Australia, and New Zealand From Latin America Toll call: Fax: w w w. d ow p e r s o n a l c a re. c o m NOTICE: No freedom from infringement of any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, the Customer is responsible for determining whether products and the information in this document are appropriate for the Customer s use and for ensuring that the Customer s workplace and disposal practices are in compliance with applicable laws and other governmental enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries. Dow assumes no obligation or liability for the information in this document. References to Dow or the Company mean the Dow legal entity selling the products to Customer unless otherwise expressly noted. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. Published March 2011 Trademark of The Company (Dow) or an affiliated company of Dow Form Number: