PRODUCTS

OPULYN 301

CASR-NO: 9010-92-8
INCI name: Styrene/Acrylates Copolymer

A highly versatile opacifier for anionic surfactant-based systems and has the best performance in slightly acid to moderate pH range.
OPULYN 301 tolerates moderate levels of inorganic electrolytes and typically used in shower gels and fatty acid-based liquid hand soaps.
INCI Name: Styrene/Acrylates Copolymer

OPULYN 301 is an anionic styrene/acrylic copolymer supplied at 40% solids.
OPULYN 301 is a highly versatile opacifier for anionic surfactant-based systems.
OPULYN 301 is best suited for formulations with slightly acid to moderate pH range, containing up to moderate levels of inorganic electrolytes, such as, mild shower gels and shampoos and fatty-acid based liquid hand soaps.

Anionic styrene/acrylic copolymer.
Opulyn 301 by Dow is used as opacifier in mild shower gels and shampoos, fatty-acid based liquid hand soaps.
OPULYN 301 imparts uniform opacity and lotionized appearance to formulations.
OPULYN 301 effectively hides amber cast or haziness in formulations.
OPULYN 301 offers high whiteness or a pastel color effect to formulation when used with dyes.
Opulyn 301 possesses very good compatibility.

Opulyn 301 is an anionic styrene/acrylic copolymer supplied at 40% solids.
OPULYN 301 is a highly versatile opacifier for anionic surfactant-based systems.

Styrene acrylate emulsion that modifies the appearance of formulations through efficient light scattering.
Formulation Guidelines Formulation components, ionicity and pH should be chosen for optimal formulation stability.

Opulyn 301 is a highly versatile opacifier for anionic surfactant-based systems and has the best performance in slightly acid to moderate pH range.
Opulyn 301 tolerates moderate levels of inorganic electrolytes and typically used in shower gels and fatty acid-based liquid hand soaps.

OPULYN 301 is a highly versatile opacifier for anionic surfactant-based systems.
Best performance in slightly acid to moderate pH range.
Tolerates moderate levels of inorganic electrolytes.
Typically used in shower gels and fatty acid-based liquid hand soaps.

Description
✔ Anionic styrene/acrylic copolymer supplied at 40% solids
✔ pH: 2.1 to 2.5
✔ Particle size: 0.18 microns
✔ Preservative: none, self-preserved

Delivers a rich, lotionised look, with broad formulation compatibility and excellent stability.

Advantages
✔ Excellent formulation compatibility and stability
✔ Suitable for a wide range of products
✔ Easy to use and process
✔ Low odour
✔ High whiteness and opacity
✔ Imparts uniform opacity and lotionized appearance to formulations
✔ Effectively hides amber cast or haziness in formulations
✔ Imparts high whiteness or a pastel color effect to formulation when used with dyes
✔ Excellent compatibility allows for use in a wide variety of applications
✔ Effective at low use levels
✔ Easy-to-use liquid

Typical Properties
✔ Chemical Description: Styrene/Acrylate
✔ Ionic Nature: Anionic
✔ Appearance: Milky Liquid
✔ pH: 2.1 - 2.5 (As Is)
✔ Particle Size: 0.17 (Average Particle Size mm)
✔ Density: 1.03 G/Ml
✔ Viscosity: <50 (Cps As Supplied)
✔ INCI Name: Styrene/Acrylates Copolymer

Applications

OPULYN 301 is a highly versatile opacifier for anionic surfactant-based systems.
Best suited for formulations with slightly acid to moderate pH range, containing up to moderate levels of inorganic electrolytes, such as,
✔Mild shower gels and shampoos
✔Fatty-acid based liquid hand soaps

Use Levels
✔0.5% to 1.0%, as supplied depending on desired appearance of final product

Uses
-Mild shower gels and shampoos
-Fatty-acid based liquid hand soaps

Benefits
-Enhance product texture and appearance
-Delivers a rich, lotionized look
-Provides uniform opacity and coloring
-Offers excellent stability
-Broad formulation capability
-Effective at low use rates
-Easy-to-use liquid
-Non-GMO

Specifications

Grade: Technical
Appearance: liquid
Application Type: Personal care
Boiling Point: 100 °C (212 °F)
Color: white, milky
Dynamic Viscosity: 50 mPa.s
Evaporation Rate: < 1.0
Flash Point: Not applicable
Odor: acrylic-like, mild
pH: 2.1 - 2.5
Recommended Use: Opacifier
Relative Density: 1.03 Reference Material: (water = 1)
Relative Vapor Density: < 1.0
Vapor Pressure: 17.0 mmHg at 20 °C (68 °F)

Functions
-Imparts uniform opacity and lotionized appearance to formulations.
-Effectively hides amber cast or haziness informulations.
-Offers high whiteness or a pastel color effect to formulation when used with dyes.
-Effective at low use levels.
-Possesses very good compatibility.
-Film forming.
-Opacifying.

Order of Addition
For maximum results, it is recommended that OPULYN Opacifiers arediluted with product water (held out of theformulation) added slowly as the final component to the formulation (after pHadjustments, 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 301 should not affect the pH ofthe 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 301 has the broadest compatibility across a variety of applications.
Both OPULYN 303B and OPULYN 305 offer a very good compatibility in the presenceof high levels of inorganic electrolytes.
In addition, OPULYN 303B also has very good compatibility with cationic-based systems with low levels of anionic surfactants.
OPULYN 302B is the preferred choice for formulations with soft preservatives due toits 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/thawstability 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 instability.
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 28 or ACULYN 88 Rheology Modifiers are the preferred 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.

Storage:
Store in a tightly closed container at room temperature between 15-30 C away from light and moisture.

SYNONYMS:

9010-92-8

2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene

2-methylprop-2-enoic acid;styrene

Styron G 9001

SCHEMBL76985

FT-0777849