AQ™ 55S is a pellet form, water-dispersible polyester resin. It is used as a film former in cosmetics, coatings, and inks.
Eastman AQ™ 55S polymer is a sulfopolyester that disperses directly in hot water without the aid of surfactants or additives. AQ™ 55S, also know by the INCI name Polyester-5, was developed to be used as a film former in cosmetics. Dispersions of AQ™ 55S form clear films with excellent durability and provide water-based makeup with improved smudge and humidity resistance. In hair-styling products, AQ™ 55S also provides excellent hold under high humidity conditions and stiffness that can be modified with thickeners or plasticizers. AQ™ 55S can also be used as a film forming resin in water based heat seal coatings and adhesives. Dispersions of AQ™ 55S can be easily applied to packaging films to form a clear, thermoplastic coating that can be heat sealed to other films and foils. In flexographic ink formulations, AQ™ 55S is used as a binder. The rapid drying speed of this polymer due to its small particle size allows for inks to dry quicker and printing speeds to be increased.
Form: Pellets
Color: Pale amber
Glass transition temperature (Tg)
dry polymer: 51-55°C
Inherent viscosity @200C: 42000 Poise
Acid number: <2 mg KOH/g
Hydroxyl number: <10 mg KOH/g
Bulk density: 6.8 lb/gal
Primary Chemistry: Polyester-5
High gloss
Excellent film formation with or without alcohol
Lasting hold in rain
Low tack
Smudge resistance
Water resistant
Adjustable firmness
Make-up smudging
Lack of water resistance of make up, hair care, and skin care formulations
Poor hair style hold
Coatings and primers
Cosmetics and personal care
Pigment dispersants
Printing inks and overprints
Heat seal coatings and adhesives
It’s not exactly new for consumers to want their makeup to survive the day. Between weather, work, and workouts, color cosmetics have their work cut out for them. SAIB (sucrose acetate isobutyrate) and AQ™ polymers from Eastman™ promote adhesion and form films to help makeup stay where it belongs.
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