OPULYN(TM) 305 Opacifier

• Offers uniform opacity and lotionized appearance to formulations
• Effectively helps hide amber cast or haziness in formulations
• Offers high whiteness or a pastel color effect to formulation when used with dyes
• Broad compatibility allows for use in a wide variety of applications
• Effective at low use levels
• Easy-to-use liquid

OPULYN(TM) 305 Opacifier is specifically designed for anionic-surfactant based systems with high levels of inorganic electrolytes across a broad pH range. Suggested applications include low betaine systems such as: Liquid hand soaps

Formulation components, ionicity and pH should be chosen for optimal formulation stability.

Order of Addition

For maximum results, it is recommended that OPULYN(TM) opacifiers are diluted with product water (held out of the formulation) added slowly as the final component to the formulation (after pH adjustments, addition of dye, salt, perfume, etc.). Good agitation should be maintained throughout the addition process. If pre-dilution is not possible or desired, OPULYN opacifiers can also be added directly to formulation slowly and with good agitation. If desired, OPULYN opacifiers can also be added directly after the formulation initial water charge.

Neutralization

Due to low dosage rates, the low pH of OPULYN(TM) 305 Opacifier should not affect the pH of the final formulation. Note: if tap water is used to pre-dilute, the pH will automatically increase to pH 4-5 and neutralization may not be required.

Compatibility

There are several formulation parameters that can affect the stability of an opacified formulation, such as level of electrolytes and cationic ingredients, the pH and choice of surfactants. All of the OPULYN opacifiers behave differently in these systems. OPULYN(TM) 301 has the broadest compatibility across a variety of application thus offering formulators a wide window for formulation developments while facilitating a long term stability of the formulations. OPULYN(TM) 302B is an excellent choice for formulations with soft preservatives due to its compatibility in the lower pH range. OPULYN(TM) 303B has a very good compatibility with cationic-based systems with low levels of anionic surfactants. Its unique design is responsible for those specific properties and makes it an excellent choice for cationic-based hair conditioners. Both OPULYN(TM) 303B and OPULYN(TM) 305 offer a very good compatibility in the presence of high levels of inorganic electrolytes. In addition, OPULYN(TM) 303B also offers, in cleansing products, a good compatibility in the presence of high levels of inorganic electrolytes and very low amounts or in the absence of amphoteric surfactants. OPULYN(TM) 305 offers a very good compatibility in the presence of high levels of inorganic electrolytes. Its unique structure is responsible for those properties and makes it an excellent choice for liquid hand soaps. OPULYN(TM) 302B is an excellent choice for formulations with soft preservatives due to its compatibility in the lower pH range.

Evaluating Formulation Stability

Four week stability tests under high, low, and room temperature conditions as well as 3 cycles of freeze/thaw stability are recommended as a best practice for any formulation containing opacifiers.

Overcoming Depletion Flocculation

Flocculation and sedimentation are the two most common symptoms of formulation instabil- ity. Certain conditions such as high betaine levels, high electrolyte levels, or the presence of cationic ingredients can pose additional stability challenges in a formulation. For these specific conditions, ACULYN(TM) 28 or ACULYNTM 88 rheology modifiers are an excellent choice as a primary or secondary thickening agent. Their high efficiency and excellent suspension performance will both build viscosity and help to prevent flocculation or sedimentation.

Cleaning

After use, process equipment should be cleaned with high pressure washing or an appropriate cleaning solution.

Store products in tightly closed original containers at temperatures recommended on the product label.