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POLYURETHANE-79.

Valuable / FILM FORMING, VISCOSITY CONTROLLING

POLYURETHANE-79 is a multifunctional polymer primarily valued for its film-forming properties, creating an ultra-thin barrier on the skin to mitigate environmental aggressors. It also functions as a viscosity controller and surfactant, enhancing product texture and stability within formulations.

Summary

Film-forming Viscosity Controlling Surfactant Suspending Agent

Science

Mechanism of Action

On the skin, POLYURETHANE-79 forms an ultra-thin, continuous film that acts as a protective barrier against external stressors like chemical exposure, UV radiation, and environmental pollutants. Additionally, it functions within formulations as a surfactant, aiding in ingredient suspension, and a rheology modifier, precisely adjusting product viscosity.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

It demonstrates broad compatibility with acrylic emulsions, requiring pH adjustment to match the polyurethane dispersion to prevent formulation instability. Products featuring POLYURETHANE-79 exhibit exceptional stability, particularly at elevated viscosities. While generally robust with substances like ethanol and mineral oil, caution is advised with strong oxidizing agents (e.g., chlorine bleach), strong acids (e.g., sulfuric acid), and certain hydrocarbons (e.g., xylene) which may induce degradation.

Synergies

  • Acrylic emulsions (with pH adjustment)
  • Ethanol
  • Hydraulic fluid
  • Hydrochloric acid
  • Hydrogen peroxide
  • Isopropyl alcohol
  • Mineral oil

Conflicts

  • Strong oxidizing agents (e.g., chlorine bleach)
  • Strong acids (e.g., sulfuric acid)
  • Certain hydrocarbons (e.g., xylene, gasoline)

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of polyurethanes, including POLYURETHANE-79, for cosmetic applications, provided they are formulated to be non-sensitizing and contain no detectable residual diisocyanates or other monomers. While the raw diisocyanates used in synthesis can cause occupational health issues, the CIR panel concluded these would not be present in the cosmetic grade ingredient.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

POLYURETHANE-79 is a highly valuable ingredient for its dual benefits of forming a protective barrier against environmental aggressors and enhancing product formulation stability and texture.

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