Optimal Solution for Emulsions with Pigments

SF-1 OSPolymer

The key to achieving even looking, radiant skin is all around uniform coverage. Create formulas that offer better protection and even tone in sun care, skin perfecting and color cosmetic applications with new Carbopol® Aqua SF-1 OS polymer.

CARBOPOL® AQUA SF-1 OS POLYMER

Optimal Solution for Emulsions with Pigments

Carbopol Aqua SF-1 OS polymer is a new grade of acrylates copolymer targeting skin and sun care applications. This polymer is capable of giving formulators the ability to offer emulsion stability and desired aesthetic properties in systems containing pigments and electrolytes at levels required to deliver product efficacy.

FEATURES

• Supplied as a 30 wt% TS emulsion; Unpreserved• Typical use level: 1 – 3 wt% as supplied• Optimal performance at pH 6.5 - 10• INCI: Acrylates copolymer

KEY BENEFITS

• Excellent emulsion stabilization and suspension above pH 6.5

• Best-in-class stability of thin emulsions• Reduces level of emulsifiers and structurants required

for optimum stability and texture• Highly compatible with pigments (TiO2, iron oxide, mica)• Enhances TiO2 distribution in emulsions• Electrolyte tolerant in emulsion• Pleasant sensory• Easy to use (liquid); cold processable• CFDA and JSQI compliant

ENHANCEMENT OF TiO2 DISTRIBUTION

Carbopol Aqua SF-1 OS polymer provides excellent stability, suspension and pigment dispersion in the presence of 5 wt% hydrophilic nano grade TiO2.

TABLE 1: Basic screening emulsion with 5 wt% Hydrophilic TiO2

INGREDIENTS NO POLYMER WT%

SF-1 OS*WT%

Deionized Water To 100 To 100

Titanium Dioxide, Hydrated Silica, (MT-100 WP (15 nm, hydrophilic) from Tayca)

5.00 5.00

EDTA-2 Na 0.05 0.05

Butylene Glycol 3.00 3.00

Methyl Glucose Sesquistearate, (Glucate™ SS Emulsifier)

0.50 0.50

PEG-20 Methyl Glucose Sesquistearate, (Glucamate™ SSE-20 Emulsifier)

1.00 1.00

Diisopropyl Sebacate, (Schercemol™ DIS Ester)

15.00 15.00

Polymer – 2.00

Triethanolamine (50%) q.s. pH 7.0 q.s. pH 7.0

Preservative 0.40 0.40

Viscosity (25°C, 24 h, Brookfield LVT, S61/S64, 20 rpm, mPa·s)

Below 50 7,798

Centrifuge test (3,000 rpm/30min/60°C)

Failed Pass

* Carbopol® Aqua SF-1 OS polymer

FIGURE 1: Micrograph (25°C, 24 h) of the basic emulsion with Carbopol® Aqua SF-1 OS Polymer at 2 wt% as-is vs. control without polymer (x400 magnification)

Carbopol Aqua SF-1 OS polymer offers both good suspension

and an even distribution of the TiO2 pigments.

Control (No polymer) 2 wt% polymer as-is

ELECTROLYTE TOLERANCE WITH PHENYLBENZIMIDAZOLE SULFONIC ACID

Carbopol Aqua SF-1 OS polymer provides very good stability in emulsions with high level of oils (up to 60% oil) which makes it an ideal emulsion stabilizer for sun care applications. TABLE 2: Basic screening emulsion with high oil level, 3.5 wt% Phenylbenzimidazole Sulfonic Acid (PBSA) and 5% TiO2

INGREDIENTS WT%

A Deionized Water q.s. 100

Glycerine 5.00

Disodium EDTA 0.20

A1 Phenylbenzimidazole Sulfonic Acid (PBSA) 3.50

NaOH (20% solution) q.s. pH 7.2

A2 Carbopol® Aqua SF-1 OS Polymer (30 wt%) 3.00

A3 Potassium Cetyl Phosphate 2.00

A4 Methylene Bis-benzotriazolyl Tetramethylbutylphenol, Water, Decyl Glucoside, Propylene Glycol, Xanthan Gum

5.00

B C12-15 Alkyl Benzoate 41.00

Ethylhexyl Methoxycrylene 3.00

Ethylhexyl Methoxycinnamate 7.50

Titanium Dioxide, Aluminum Hydroxide (Matlake™ TMO from Sensient, Nanofine-free)

5.00

Ethylhexyl Triazone 3.00

Butyl Methoxydibenzoylylmethane 3.00

Glyceryl Stearate, and PEG-100 Stearate 3.00

Cetyl Alcohol 2.00

C24-28 Alkyl Dimethicone 2.00

Phenoxyethanol 0.50

C NaOH (20% solution) q.s. pH 7.2

Viscosity (25°C, 2 weeks, Sp6, Brookfield DV-1, 20 rpm, mPa·s)

21,350

Note: * Some UV filters herein are not approved for use in the US.

FIGURE 2: Micrograph (25°C, 24 h) of the screening emulsion with high oil level, 3.5 wt% Phenylbenzimidazole Sulfonic Acid (PBSA) and 5% TiO2 (x400 magnification)

Figure 2 shows that Carbopol Aqua SF-1 OS polymer offers good emulsion stability in the presence of electrolytes such as Phenylbenzimidazole Sulfonic Acid in combination with high levels of TiO2.

Carbopol Aqua SF-1 OS polymer imparts very good emulsion stabilization and pigment suspension efficiency in skin care systems. From velvety smooth BB creams to sprayable sunscreen lotions, make it radiant with this easy-to-use liquid rheology modifier. Formulate with confidence™.

For full formulation details, further information and starting formulations visit www.lubrizol.com/personalcare

HIGH PIGMENT COMPATIBILITY

Carbopol Aqua SF-1 OS polymer shows excellent compatibility with color cosmetic pigments such as mica and iron oxide.

When used as the sole rheology modifier and without fatty alcohol, Carbopol Aqua SF-1 OS polymer provides excellent stabilization, viscosity and pigment suspension.

TABLE 3: Mica and Iron Oxide Stabilization in Emulsion

INGREDIENTS WT% WT%

Deionized Water To 100 To 100

Disodium EDTA 0.05 0.05

Glycerin 5.00 5.00

Carbopol® Aqua SF-1 OS Polymer (30 wt%) – 3.00

Methyl Glucose Sesquistearate, (Glucate™ SS Emulsifier) 2.50 2.50

PEG-20 Methyl Glucose Sesquistearate, (Glucamate™ SSE-20 Emulsifier)

2.50 2.50

Diisopropyl Sebacate, (Schercemol™ DIS Ester) 15.00 15.00

Mica (and) Bismuth Oxychloride (and) Iron Oxides, (Chroma-Lite® Yellow CL 4502 from BASF)

3.50 3.50

Mica (and) Bismuth Oxychloride (and) Iron Oxides, (Chroma-Lite® Red CL 4506 from BASF)

0.30 0.30

Mica (and) Bismuth Oxychloride (and) Iron Oxides, (Chroma-Lite® Brown CL 4509 from BASF)

1.00 1.00

Triethanolamine (50%) q.s. to pH 7.0

Preservative 0.40 0.40

Viscosity (25°C, 24 h, Brookfield LVT, Sp61/64, 20 rpm, mPa·s)

Below 50 22,735

Centrifuge test (3,000 rpm/30min/60°C) Failed Pass

FIGURE 3: Results of Mica and Iron Oxide Stabilization in Emulsion

After being heated at 60°C for 18 hours and centrifuged at 3,000 rpm during 30 minutes.

Left: No polymer Right: 3 wt% as-is Carbopol® Aqua SF-1 OS Polymer

TDS-945 2014XXXX

The information contained herein is being furnished for informational purposes only, upon the express condition that the User makes its own assessment of the appropriate use of such information. While the information contained herein is believedto be reliable, no representations, guarantees or warranties of any kind are made as to its accuracy, suitability for a particular application or the results to be obtained herefrom. Lubrizol Advanced Materials, Inc. (“Lubrizol”) cannot guarantee how any products associated with this information will perform in combination with other substances or in User’s process. Due to the variations in methods, conditions and equipment used commercially in processing these materials, no warranties or guarantees are made as to the suitability of the information/products for the applications disclosed. Lubrizol shall not be liable and the User assumes all risk and responsibility for, any use or handling of any material beyond Lubrizol’s direct control.LUBRIZOL MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. It is the User’s sole responsibility to determine if there are any issues relating to patent infringement of any component or combination of components relating to the supplied information. Nothing contained herein is to be considered as permission, recommendation, nor as an inducement to practice any patented invention without the permission of the patent owner. © Copyright 2014 Lubrizol Advanced Materials, Inc.

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